Contact us
Close contact box

Kicker KEY180.4

Compact 4-channel car amplifier with automatic tuning DSP — 45 watts RMS x 4

Item # 206KEY1804

Now you can get fantastic, high-quality sound without breaking the bank.

Now you can get fantastic, high-quality sound without breaking the bank.

Need help?
Contact our Virginia-based experts.
1-888-955-6000
3 advisors available

Ships free

In Stock
$199.99
Add to wishlist

About the Kicker KEY180.4

Musical boost and tune-up

Now you can get fantastic, high-quality sound without breaking the bank. Kicker's KEY180.4 compact car amplifier features automatic signal processing that tailors the audio for your specific vehicle. This 4-channel little power pack will send 45 watts RMS to each of your front and rear speakers — more than twice the power of a typical aftermarket receiver, three or four times the power of a factory radio.

Musical boost and tune-up

Now you can get fantastic, high-quality sound without breaking the bank. Kicker's KEY180.4 compact car amplifier features automatic signal processing that tailors the audio for your specific vehicle. This 4-channel little power pack will send 45 watts RMS to each of your front and rear speakers — more than twice the power of a typical aftermarket receiver, three or four times the power of a factory radio.

KEY Auto Setup tunes in minutes, not hours

After installation, you set up the included calibration mic, start the test noise (downloaded from Kicker), hit the activation button, and the KEY Auto Setup software automatically sets the crossovers, 40-band EQ, and time-aligns the sound for the front seat driver. Then later, with the button, you can A/B the before- and after-processing sound, to amaze your friends and family.

Advanced features

You can manually enable Auto Compression, for a more consistent and safer power output. A limiter kicks in and lights up when it detects clipping, letting you know that something's too loud. A Bi-Amp mode lets you actively run tweeters and woofers without a passive crossover, by applying customized active crossover settings during the KEY Auto Setup process.

Start-Stop problem solved

Some eco-friendly cars actually turn off their engines when stopped, and then start up again when the brakes are released. The voltage dip during starting could shut down an amplifier or allow it to pass a dangerous clipped signal to the speakers. The KEY180.4 prevents these issues by automatically engaging its limiter in these circumstances.

Integrates well

This amp's so tiny, it'll fit almost anywhere in almost any vehicle. Kicker's FIT2™ technology, using speaker-level inputs with DC offset sensing turn-on, ensures this amp will work in almost any system, even one with a factory radio. The Radio-Detect switch makes sure you never get a "No Speakers Detected" message on your receiver's display when you install this amp.

Kicker KEY180.4

KEY180.4 with activation button and calibration mic

READ LESS

Product highlights:

  • 4-channel car amplifier/sound processor
  • 45 watts RMS x 4 at 4 ohms
  • CTA-2006 compliant
  • non-bridgeable — minimum impedance of 4 ohms per channel
  • Class D amp technology
  • KEY Auto Setup customizes the signal for your vehicle
    • calibration mic and activation button included
    • pink noise test tones available from Kicker.com
    • automatic adjustments include 40-band EQ, 24 dB/octave crossover filters, time alignment
  • Bi-Amp mode applies tweeter/woofer crossover settings during KEY Auto Setup
  • switchable auto compression
  • selectable high-pass filters (off, 60, 80, 120 Hz; 24 dB/octave)
Other Features:
  • automatic limiter with clip lights
  • preamp and speaker-level inputs
    • DC offset sensing turn-on with speaker-level inputs
  • Radio-Detect circuit supplies speaker load for receiver to sense
  • wiring and hardware not included with amplifier
    • 14- or 12-gauge power and ground leads recommended
  • fuse rating: 20A x 1
  • dimensions: 7-3/8"W x 1-3/4"H x 2-13/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # Kicker KEY180.4
KEEP READINGREAD LESS

What's in the box:

  • 4-Channel amplifier
  • 12" Harness (power / ground / turn-on / speaker output)
  • 12" Input harness (4-channel RCAs)
  • 16" Loop of 14-gauge red power wire with in-line fuse holder
  • 20A ATO fuse (installed in holder)
  • Microphone with attached 11.5' cable (3.5mm plug)
  • Rubber microphone holder
  • 4 Self-tapping screws (length 1")
  • Two 12" wire ties
  • Owner's Manual
  • Quick Start Guide

Featured video:

Customer reviews

Loading reviews...

Kicker KEY180.4 reviews

Average review:

41 reviews

Filter by rating

Customer photos

Sort reviews

Sort by:
Items per page:
View page:

Kicker KEY180.4

Crutchfield customer from S Bound Brook, NJ on 5/21/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

Great product I asked the team what to choose I had two items I wanted he directed me that the keysmart would do the job of both items I picked and half the price! Quick response and quick delivery!!!

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

G-Body goodness

Crutchfield customer from Mount Pleasant, WI on 5/12/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

This thing is awesome! I especially like that it allows me to keep the stock radio in my classic car, but have nice sound . Te small size makes it easy to place where it is not seen.

Pros: Effective, Small, Value for the money

Cons: None (so far)

Crutchfield response on

0 of 1 found this helpful

Well worth every penny

Crutchfield customer from Bellerose, NY on 5/5/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

Best decision ever. Great product very well designed compliments to kicker for creating such an outstanding all in one device(amp and dsp). The improvement s after installtion are mind blowing. And step by step tech support by crutchfield is also applauded. Installed in 2016 accord lx with factory stereo but has turned my world upside down. Must get for those who wants to keep factory setup and still enjoy great musical output with details and clarity well balanced staging.

Pros: Works well with factory stereo. Great improvement .

Cons: None yet

Crutchfield response on
Customer review photo

0 of 1 found this helpful

Great Sound!!

Darrell from Edmond, OK on 4/21/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

Wow!! I installed a Kicker KEY 180.4 into my 2001 BMW M5, replacing the 20 y/o factory DSP system. I was skeptical that such a small amp would yield the results I was after, but I'm very, very impressed. Combined with a Focal Integration series 5.25" component set in the doors and a Kicker 5.25" coaxial set in the rear deck, the sound was initially good, but not great. However, after running the Auto-Tune routine the system sounds incredible. The sound stage is lifted and thanks to the time alignment it gives the illusion that the sound is coming from the dash rather than the doors. Installation was fairly straightforward as I was able to use the power/ground from my stock amp. I hope Kicker uses this technology in future products (a larger 5ch amp with Key technology would be perfect!)

Pros: Small size Sound quality

Cons: Limited power No manual adjustment of Auto-EQ settings

Crutchfield response on

3 of 4 found this helpful

Make your factory sound great

Jon from Yuma, AZ on 4/17/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

Used it on a Toyota Sienna which had awful sound. Instead of spending megabucks, bought this amp. Installed by a professional. Now it sounds very high end. It has built in filters which bring out the complexity of the music and voices. But you must, repeat must play the "pink noise" provided by Kicker into the included microphone to calibrate the unit, otherwise it will just be amplified, louder bad sound. I know this to be a fact because the installer did not calibrate the amp on the first try, and only did calibrate it when I brought the car back to try to improve the sound. BUY IT!

Pros: Built in filters create a clarity and depth of sound found in high end equipment at a low cost

Cons: Requires calibration using "pink noise" downloaded from manufacturer to attain the great sound quality

Crutchfield response on

2 of 2 found this helpful

Kicker KEY180.4

Crutchfield customer from Mount Airy, MD on 4/15/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

Nice and compact. I was able to install this behind the factory radio and tap-in to the factory wiring harness in my 2014 Mustang. Do NOT use the factory speakers with this amp, it will sound terrible. You need to upgrade the factory speakers (I'm using Focal ICU 570 in factory locations). Be mindful of the gain (not a volume control). I have mine set to about 1/3rd the way and this is plenty of power for my set-up. I also like the "clipping" LED to provide some reference point.

Pros: Compact size, easy to hide inside the dash, plenty of power.

Cons: None.

Crutchfield response on

1 of 1 found this helpful

Kicker KEY180.4

amchev from Sylacauga, AL on 4/5/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

The built in signal processor is outstanding. It's very helpful that you can press the microphone button to compare the sound with and without the SP.

Pros: Signal processor. Bypass button, easy to install.

Cons: Not much.

Crutchfield response on

1 of 1 found this helpful

You wont be dissappointed!!!

Crutchfield customer from Hayward, CA on 3/31/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

I've had this thing hooked up for about two days and maybe logged 10 miles of driving, but I must say "WOW," this little thing has got some punch! The difference is night and day. I went for about a month with a new head unit and Focal 5x& speakers. The sound was good. I had to really play with the EQ on the head unit to get a sound that I liked and I felt satisfied with the money that was spent on everything!!!! THEN CAME THIS LITTLE POWER HOUSE!!!! After hooking it up...running it through it's Auto Tune function...."WOW!!!!" My EQ is flat...all the extra sound enhancing stuff is off....and man, everything sounds like money well spent!!! And this unit is tucked away in my dash of all places. This little unit showed me why my Focal speakers cost the amount that they did!!! No longer just satisfied with the sound....I'm extremely HAPPY with it!

Pros: Small, powerful, auto tuning! Leaves you with plenty of room to make other adjustments on your sound.

Cons: I haven't had it long enough to find any. Although, because of it being so small, you tend to hide this in the tiniest of spots...not sure how that is going to play out for me when heat becomes a factor.

Crutchfield response on

1 of 1 found this helpful

Perfect

Crutchfield customer from Powell, OH on 3/31/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

Great little amp. Setup is easy and the auto EQ and time alignment works. Note to Ford owners. Make sure you have your center speaker disconnected during the auto setup or else the end result will be poor.

Pros:

Cons:

Crutchfield response on

1 of 1 found this helpful

Make my factory receiver great again

Crutchfield customer from Dubuque, IA on 3/29/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

I was looking for a little more power and clarity in my factory receiver. The Kicker KEY180.4 amp did not disappoint. I installed this along with a pair of Infinity Reference REF-6532ex speakers, also from Crutchfield, in my front and rear doors. The Kicker Key180.4 was an easy decision after watching a video review on Crutchfield. It has just enough power for me, but the real deal is in the DSP. It makes my factory receiver sound magnificent. Thank you Crutchfield for all the advice.

Pros: DSP Does not take up much space

Cons: None

Crutchfield response on

1 of 1 found this helpful

Buy this amp!

Crutchfield customer from Portsmouth, NH on 3/24/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

This amp has surpassed all expectations. I originally planned on also adding subwoofers to my Tacoma, but this amp has totally eliminated any need for that. My door speakers are pumping out tons of bass. The highs and mids are crystal clear. This is the single greatest modification I've made to my truck since owning it.

Pros: Totally transforms the sound of your already-existing system Works with stock head unit

Cons:

Crutchfield response on

3 of 4 found this helpful

Kicker KEY180.4

Roy from Pittsburgh, PA on 3/9/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

The kicker key180.4installed easy enough but setting it up via Bluetooth was another story. Without the DSP engaged it is a very good amp. It has ample volume and very clean sound. As far as it's performance as an amplifier, it's a very good one,but I still have not been able to get the DSP to work. That's a shame really because that was the main reason I bought it.

Pros: Ease of installation and very clean sound.

Cons: Getting the DSP set up and working.

Crutchfield response on

0 of 2 found this helpful

Fix the F-150 Stock system without breaking the bank.

JW from Bountiful, UT on 3/7/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

If you have a 2017 F150 with the stock SYNC system and want to keep the factory head with sync this is a great solution for you! I wanted to get some better sound out of my stock (Not Sony) system. I like to feel the base and have clear sound that fills the cabin. I started by adding some kicker speakers. I installed a set of components up front that fit right in with the stock tweeter position and a set of two ways for the back position. Item #206CSS694, and Item #206DSC6704. The new speakers helped but the sound was just flat and no punch at all. My Stock head unit was definitely holding these new speakers back. After adding the KEY180. the system is great! I didn't even have to disable the auto start stop in the truck as others have had to with a large amp install. The sound is rich and full. You can now feel the base but not to the point of the truck being a thumper. My only complaint would be that I wish I could have more control over the sound i.e. a little EQ or some different presets to use. With the older head setups I always liked the "Loud" mode it sounds best to me. This is almost perfect with very easy setup. I used a factory connector from amazon, the FOR-11CK-No Cutting Factory Harness. Sadly Crutchfield does not have a harness kit for this truck. The little amp installed tucked up in the dash perfectly too. Great sound and near simple install. I highly recommend to those that are looking to bring the factory blah system to life!

Pros: Great sound from a small package. Easily hidden. Auto set up. Keep factory head unit. No need to disable auto start stop.

Cons: Would like some more settings, presets or EQ.

Crutchfield response on

4 of 4 found this helpful

Kicker KEY180.4

Dustin from Las Vegas, NV on 2/12/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

If you're looking to upgrade your factory stereo, do not look any further. This thing is amazing. For the price, it can't be beat. You will not be disappointed with the sound quality.

Pros: Small size, easy set up, sound quality

Cons:

Crutchfield response on

0 of 1 found this helpful

Kicker KEY180.4

J from Williamsburg, VA on 10/22/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

The amp was a easy install. I took the time to wire in connectors so that it plugged into the factory harness with no cutting of wires. I tried the auto setup and at first thought that it sounded good, standing still. But, after driving the car I realized that it pushed the sound stage to the front and made the rear deck speakers sound muddy. I have 3 way JL's in the rear and JL components in the front. The auto tuning removed all the mid and a good portion of the highs and as I said made the base muddy in the rear. I bypassed the tuning, set the gain front to rear, and worked with the tone controls on the factory head in my 2014 Camry and now have much better overall sound. I wish the sound processor had some flexibility in tuning profiles.

Pros: Good size

Cons: One size fits all auto tuning.

Crutchfield response on

5 of 8 found this helpful

Sounds very nice.

MICHAEL from Muncie, IN on 10/14/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Definitely a noticeable improvement over stock even with after market speakers. I also use a the Bazooka BTd8024DVC and a small 300 watt amp to power it. It blended perfectly without any further adjustment with tight accurate bass matching up with the front mid bass drivers very well. I didn't have to adjust the gain from minimum on the Kicker amp and it was already louder than before I installed it. Previously I used to have a JL XD 3 channel amp that had 75 watts RMS per channel and as far as volume goes, the 45 watts per channel of the Kicker gets just as loud while staying crisp and detailed. I have a HU that has built in DSP with 13 band EQ and I can definitely tell the Kicker's built in 40 band EQ added more clarity to the mid range over what my HU was capable of.

Pros: Does exactly what it's advertised to do. It fit well underneath my dash in my Honda Fit. Sounds very clean and clear. Gets very loud.

Cons: Manual mentioned nothing about adjusting the gain other than to do it after setup but fortunately I didn't need to. Usually when you adjust the gain you have to play a test tone and measure the output or crank your volume up 75% and adjust but the manual says nothing about what they recommend since it has some LED clip indicators. Harness wires could stand to be a little longer when you're connecting to factory speaker wires behind your radio if you want to mount the amp more than 12 inches a

Crutchfield response on

1 of 1 found this helpful

Exactly what my speakers needed.

Everette from Mililani, HI on 10/9/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Very happy with the results. After lots of research on how to wire it, I was able to make a plug and play harness. I am enjoying the louder, clearer, crisp sound. I would recommend anyone on the fence to go and get it. You won't be disappointed.

Pros:

Cons:

Crutchfield response on

1 of 2 found this helpful

Amazing sound for such a small amp

Steve from Grosse Pt Pk, MI on 10/8/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

I upgraded my tweeters and door speakers in my 2017 Toyota Tacoma access cab based on a write up on a forum I am on and then moved on to adding a Kicker Hideaway powered sub. Nice sound and the Hideaway added the bass the OEM head unit was unable to provide. My only complaint was it lacked volume. After yet another forum write up I went with the Kicker Key 180.4. Now it has tons of volume and even better sound overall. I am not a super high end audio snob but I like my music to sound good whether it be heavy metal, classical, rockabilly or electronica. With a little tuning the CS series speakers, Key amp and Hideaway powered sub sound great no matter what music I am playing.

Pros: Small and easy to fit behind head unit.

Cons: May not satisfy the highest end audio snobs (but that isn't me I think it sounds awesome).

Crutchfield response on

3 of 3 found this helpful

Kicker Key 180.4

Dennis from Minot, ND on 10/3/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

OMG!!!! I put this along with Rockford Fosgate speakers, and it was well worth the price. If you own a 18 F150 A302 pkg get this amp! The only part that I did not get from here was a Carav 12-240 wiring harness. Crutchfield did me right. The Kicker Key 180.4 is the real deal. Paired it with Rockford Fosgate Prime R165x3 rears and R169x3 Fronts... phenominal sound .

Pros: It works as advertised and even better

Cons: It doesnt install itself.

Crutchfield response on

1 of 1 found this helpful

Kicker KEY180.4

Ryan from Indianapolis, IN on 9/25/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Very cool product and a nice way to add some more advanced processing features to your car. Auto Key Setup is the equivalent of the auto eq systems built into modern home theater receivers, just for your car. I'm running this amp in Bi-amp mode to a set of Morel Maximo 6 components without using the passive crossovers. The ability to independently adjust gain is nice especially if your tweeters are on the overly bright side. The Auto Key Setup is the big reason to buy this over other compact ~4x50w/channel amps. The time delay really lifts the stage out of my door panels and moves it out to the center of the dash which sounds nice. I'm not a fan of the EQ settings it choose. It seemed to lack a little in the mid/midbass region, so I turned the EQ off and adjusted with my HU instead. The Bi-amp mode uses a fixed tweeter/mid crossover at 3200hz, i believe at 24db/octave. This works well for the Morels and is probably a better crossover than most component sets come with.

Pros: Adds some nice sound processing features to a basic 4 channel amp to give your front stage a lift. Auto calibration does the work for you.

Cons: Lacks the adjust-ability of a true DSP.

Crutchfield response on

6 of 6 found this helpful

Kicker KEY180.4

Rick from Cedar Grove, TN on 9/25/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Pain too install under dash of 2007 Miata! Wanted to keep factory radio and not pull door panels back off since I had up graded door speakers to Focal's last summer. Mounted under steering column. Made up harness to look factory and well pleased with sound although I have got to drive it yet due to other projects not complete. Herb Albert and Tijuana Brass sounds great with motor running with a bit of rumble of performance exhaust system! Tatum thanks for help!

Pros: Size and auto set up

Cons:

Crutchfield response on

0 of 1 found this helpful

Easy way to get quality sound

Jake from Marriottsville, MD on 9/10/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Very easy to install and did fit behind my dash. Noticeable power increase over just an aftermarket head unit and speakers. It really does make the most out of your system with it's automatic tuning program. Very accurate and reminds me of very expensive factory systems I've heard. Picture perfect tuning with ease!

Pros: Inexpensive for the results it achieves.

Cons: technology not offered in higher powered amps

Crutchfield response on

0 of 0 found this helpful

Just the ticket

Matt from Platteville, WI on 9/3/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

An outstanding little amp. I was hesitant at 1st as the Auto Set Up seemed like a marketing ploy. After watching the video and hearing the A/B difference on my computer speakers I decided to give it a go. I am so glad I did. I have a Pioneer AVH-4201NEX head unit in my 2016 Dodge Grand Caravan with stock speakers. After running the Key Auto Set Up everything I listen to from Metallica to Pink to Harry Potter audio books for the kids, sounds better. I also no longer have to switch to different EQ presets based on what is playing. Talk about a breath of fresh air!! The Sound Ordnance sub is much more dynamic as well. I couldn't be happier with this amp. Great job Kicker!!

Pros: Key Auto Set Up, great sound from stock speakers, price

Cons: none for me

Crutchfield response on

1 of 1 found this helpful

Nice little amp for the money.

Crutchfield customer from Wilmington, NC on 8/28/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Great sounding amp for the money. I especially like the way it automatically adjusts the sound for the best results.

Pros: Great sounding little amp for the money.

Cons: Can't think of any.

Crutchfield response on

0 of 0 found this helpful

WORK IN PROGRESS

mike from Miami, FL on 7/20/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Sorry about the 3 star but I have-not been able to get my system running yet. I have a 2017 Challenger W/Alpine 6 speaker 276w. I upgraded the speakers to Infinitys and was so happy I decided to add a Kicker Key180.4, Sound Ordinance 2channel amp and Polk audio sub for the rear deck. And while I'm at it add a bunch of Dynamat to help with exhaust drone also. I later got an AudioControl LC6i processor to give me a channel for the sub. It wasn't until I was on AudioControl's website that I found out what might be happening, my head unit does not recognize the amp as speakers so it won't sent a signal. Of course AudioControl has the resistors necessary to correct this problem, they are on order as of my writing. They didn't cost that much and they're plug and play with their processor. I love Crutchfield but maybe my do it myself shopping is not the way to go. Next time I will try an inside rep. Might save me money too!

Pros: I'll get back to you

Cons: I'll get back to you

Crutchfield response on

1 of 21 found this helpful

Haven't installed the Kicker, yet. . .

John from Manchester, NH on 7/16/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

As always, Crutchfield delivered my order quickly, and extremely well-packaged. I love these folks! I haven't installed the KEY180.4, yet, but I've received some very helpful tips from their customer service representatives.

Pros: Crutchfield customer service is amazing!

Cons: None

Crutchfield response on

2 of 18 found this helpful

Kicker KEY180.4

Crutchfield customer from Perris, CA on 7/11/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

as advertised. awesome

Pros:

Cons:

Crutchfield response on

1 of 4 found this helpful

Kicker KEY180.4

Leon from Burbank, CA on 7/7/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

I stumbled upon this amp by accident, and I'm so glad I did! I wanted to keep a stock look, but desperately needed to correct the poor EQ and get a little more power in my SUV. I ready great reviews of this product, and figured it was worth a try. After a pretty easy install, with no splicing (I ordered the input and output harnesses for seamless factory radio integration), I was running the tuning setup and ready to go. The tuning process was about 3 minutes, followed by the "happy tune" and it was done. The results were outstanding! I have aftermarket speakers, but no sub, however, the tune made the system shine. The power is just what I need, and Kicker really did an fantastic job with the tuning and staging algorithms. I've never had Kicker products, but am a fan now. I look forward to seeing how this compact amp does over the long haul. Thanks Crutchfield and Kicker!

Pros:

Cons:

Crutchfield response on

5 of 6 found this helpful

My stereo.

Rick from Bentonville, AR on 7/3/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

I really like your product, it really makes a Differants to my stereo.

Pros: Sounds really good

Cons: None

Crutchfield response on

2 of 8 found this helpful

Problem solver!

Stevie from Austin, TX on 6/20/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Just what my 2017 Silverado needed! I already had JBL speakers in the doors and a Kicker sub, but the EQ and power of the factory system was way inadequate. This Kicker amp took care of all that! In fact, the JBL door speakers now put out enough bass to where I probably don't need a sub. But I love the sub, so I ended up using the 60hz dip switch on the Kicker amp to cut the lows on the door speakers and now have a perfect blend between the Kicker sub and the JBLs. Also have plenty of power and high frequencies to spare. I had to cut the gain back on the Kicker amp after the initial setup though, because the chimes and other sound effects of the Silverado (turn signals, etc.) come through the speakers and were a little too loud.

Pros:

Cons:

Crutchfield response on

9 of 9 found this helpful

Kicker KEY180.4

Steven from Colorado Spgs, CO on 6/17/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Installed the amp on my 2016 Tacoma along with Kicker speakers nice high soundstage after calibration great addition to the factory head unit

Pros:

Cons:

Crutchfield response on

8 of 8 found this helpful

some trouble intalling but great amp overall

michael from Greer, SC on 6/17/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

I have this paired up with a factory head unit and alpine type s components in the front and coaxials in the back doors. It is amazing how much power comes out of this tiny amp, I had some trouble intalling since my car is newer and there isnt much information on it yet (17 nissan rogue sv without bose). All in all a great little amp although sometimes distortion comes through even though the gains are set super low. Also I am having to reset my sub amp because i am running the signal through the back speakers to the sub amp.

Pros: power, the dsp, and the size of it can fit anywhere.

Cons: It was hard to install because of my lack of expertise and because my car is very new. It distorts sometimes even with the gains set low. difficult to use with subwoofer as well

Crutchfield response on

3 of 9 found this helpful

Kicker KEY180.4

John from Mckenna, WA on 6/12/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Has really improved my factory system.

Pros:

Cons:

Crutchfield response on

5 of 5 found this helpful

Kicker KEY180.4

Crutchfield customer from Vineland, NJ on 6/7/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Easy install! It made a big difference.

Pros:

Cons:

Crutchfield response on

6 of 6 found this helpful

Woah!!!

Charlie from Gainesville, FL on 6/7/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Awesome!! Had previously replaced all factory speakers in my 2012 F150 with Kenwoods and it sounded much better than the factory but this little amp brought it to life! Great sound now with the Kicker....Install was a piece of cake (after Jason sent me the wiring diagram for my truck). Plenty of bass for this old man! It thumps! As usual top notch service from Crutchfield!!!!

Pros: Everything

Cons: None

Crutchfield response on

7 of 8 found this helpful

Finally!!! The sound I wanted

Scott from Findlay, IL on 5/23/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

My factory stereo had to be turned up almost 3/4 of the way to hear it if I was on the highway. First I tried new speakers (from Crutchfield), which I love, but that did not solve my problem. I purchased this Kicker amp. Problem solved. Volume is good and the sound/clarity is way better now that I am properly driving my speakers. I used the auto set up which was very easy. I would recommend this amp. Especially if you want to upgrade your factory sound system.

Pros: Small in size. Very easy to install. Sound is great

Cons: I drove 19,000 miles before taking the plunge and buying this amp. No cons.

Crutchfield response on

13 of 13 found this helpful

Highly recommended

James from Colorado Springs, CO on 4/25/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

I highly recommend this product for factory systems because of it's simplicity and high quality sound it produces. I am very pleased with this product because I didn't have to buy extra hardware or cables and I was able to install it in the dashboard of my 2017 Tacoma. I paired this with Acces Focal speakers. Great combo!

Pros:

Cons:

Crutchfield response on

16 of 16 found this helpful

Get this is you want crisp Highs, tight Mids and a great sound stage!

Danan from Saint Johns, FL on 4/19/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

I've always replaced the factory head unit in my vehicles, but its just not worth doing in my 2017 f-150 because I have the Sync 3 system with all the bells and whistles. The sound however in my truck was absolutely horrible. First I replaced all the factory speakers, which rewarded my ears with a noticeable improvement over the factory sound, but I still wasn't satisfied. Then I added the Kicker Hideaway and finally I was getting the low end that I was missing. But something still needed improvement! The highs and the mids were muddy, I like tight mids and crisp highs and I wasn't getting that even with the EQ maxed out in the head unit. I was eyeballing the Alpine ktp-445u, but then I stumbled upon the Kicker KEY 180.4 and man am I glad I purchased the Kicker Key! Installation took about 2 hours. Auto Key failed the first time with 4 beeps (my volume was too low). I increased my volume and started the process over and a few minutes later I was greeted with the jingle of success. I re-attached to the center channel speaker and sub (neither are attached to the Key) then dialed in the gains according to the directions and popped in my favorite CD. Man this sounds good, I thought to myself. I hit the button to hear the before and after. Oh My God. Its like night and day. The mids and highs are right where I wanted them, lows are still there too. Sound Stage? Perfect! Highly recommend. 5/5. I installed mine in the glove box. It fits nicely there.

Pros: Auto Key!!!

Cons: The inputs are on the opposite side from the power and ground input (which are included in the harness for the output side), kinda weird how the mixed the power and ground inputs and outputs on one side.

Crutchfield response on
Customer review photo Customer review photo

28 of 28 found this helpful

Kicker KEY180.4

Crutchfield customer from Manteo, NC on 4/16/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Not good sound quality. Highs are cracklely and over all poor quality.

Pros:

Cons:

Crutchfield response on

2 of 47 found this helpful

Kicker KEY180.4

Jonathan from Miramar Beach, FL on 4/15/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Great sound over all from the factory radio...even better with an aftermarket radio...highly recommend, easy setup, good price, and awesome results.

Pros:

Cons:

Crutchfield response on

17 of 17 found this helpful

UNREAL improvement!

Bill from Orlando, FL on 3/21/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Let me tell you.... I've been installing professionally for about 12 years, and never once have I been blown away by such an inexpensive piece of car audio. The install was exactly the same as with any other mini 4-channel amp. I stashed it behind the factory radio and used the factory power/ground. I plugged in the included mic, played pink noise through the head unit, hit the button and came back 3 minutes later to an entirely different car! WOW! I sound corny saying this, but I was all-out shocked by the improvement it made. And for the price and 45 mins of install time?!?! Better cleaner bass. More defined and crisp top-end. And a soundstage that's now high and centered. Phenomenal. The best part is that it includes a button to toggle between before/after, so you can demo for the customer (or yourself). I wouldn't hesitate recommending this amp to more customers/friends.

Pros:

Cons:

Crutchfield response on

49 of 51 found this helpful

Verified customer (What's this?)
Verified employee purchase (What's this?)

Pros:

Cons:

Crutchfield response

<< >>

Product Research

Features

Overview: The Kicker KEY smart amplifier is designed to dramatically improve the sound quality of your vehicle's sound system automatically. The KEY 180.4 delivers clarity and solid power to your speakers. With the included microphone, you can run the Auto Setup process to optimize the audio for your particular vehicle. The amplifier can run four full-range speakers, or you can bi-amp a pair of component speakers. The amplifier is less than 8" long and 1-3/4" high, allowing you to mount is nearly anywhere.

Power Output: The KEY180.4 is a 4-channel amplifier designed to power up to two pairs of speakers, or one pair of component speakers. The amplifier is essentially divided into two 2-channel amplifier sections: Amp 1 and Amp 2. The amplifier provides the following power output: 45 watts x 4 RMS at 4Ω stereo (≤1% THD+N, 14.4V). The KEY180.4 must be run at 4-ohms minimum impedance per channel. The amplifier is not bridgable.

KEY Auto Setup: The KEY Auto Setup procedure helps the amplifier set individual speaker equalization, Kicker EQ, time delay, and speaker sensitivity matching. The included microphone should be placed on top of the driver's seat headrest to optimize the settings for that seating position. The Auto Setup begins when you press the activation button on the microphone cable. During the test, you will need to play uncompressed pink noise from the head unit through the speakers connected to the amplifier. Any speakers or subwoofers in the vehicle that are not connected to the amp should be turned off. Once the procedure is complete, the amplifier will play "happy" music to indicate successful completion, or "sad" music and beeps to indicate an error code. 

Gain Matching: The Kicker KEY180.4 makes it easy to set the input gain through a procedure called Gain Matching. The goal is to match the output of the source unit to the input level of the amplifier. The amp features a Limiter LED that lights up when the amplifier is clipping, allowing you to properly set the gain. Kicker recommends setting the gain using test tones for best results.

Limiter: The amp features a built-in limiter to protect your speakers and to assure continuous playback. The limiter is designed to engage in the following situations:

  • Engine Start: The amplifier is compatible with Start-Stop vehicles, and will not turn off during engine start. The limiter engages during engine start to prevent a clipped output signal from reaching your speakers.
  • Low Voltage: If the voltage on the power wire goes below +10.8V, the limiter will engage during moderate or high music volume levels.
  • Input Signal Overdrive: When the input signal causes the output to exceed the maximum rated power, the limiter will engage to prevent clipping. This is typically caused by the gain setting and/or the input signal being set too high. If this occurs, you should lower the input signal or the gain setting.

Controls: The controls are located on one end of the amplifier. A set of 8 DIP switches lets you configure the amplifier to your desired settings. There are two rotary gain controls for setting the input gain for Amp 1 and Amp 2. The DIP switches control the following settings:

  • Time Delay: Set to enable (EN) for all speakers' output to reach the driver (or the microphone location) at the same time. Set to defeat (DF) to turn off time delay.
  • Kicker EQ: The Kicker EQ is a 40-band equalizer that is automatically set during Auto Setup. You can set to enable (EN) to turn it on, or to defeat (DF) to turn it off. When off, the frequency response curve will be flat.
  • Bi-Amp Mode: You can bi-amplify component speakers, or door woofer/dash speakers. When the Bi-Amp switch is on, the amplifier will automatically detect and apply bi-amplification settings:
    • Woofers/Tweeters: 3.2kHz high pass for the tweeters (24dB/oct); 3.2kHz low pass for the woofers
    • Door Woofer/Dash Speakers: 320Hz high pass for the dash speakers (24dB/oct); 640Hz low pass for the door woofers
  • Compression: Auto Compression reduces high amplitude signals above a certain threshold to protect your audio system and provide more consistent sound. Set to enable (EN) to turn on compression, or set to defeat (DF) to turn Auto Compression off.
  • Fader: The fader switch lets you indicate the number of inputs you are running to the amplifier. Set to On if you are running two sets (front and rear, for example), or set to Off if you are driving all four channels with a single stereo input.
  • Auto Turn-on: You can use two different methods of automatic turn-on: run a dedicated +12V remote turn on lead (set DIP switch to 12V), or 3V DC offset on the speaker input wires (set to DC). Using DC offset puts +12V on the Remote Turn on wire for turning on additional amplifiers, if desired.
  • Hi-Pass Filter Options: The last two DIP switches can be configured to set the crossover frequency for the high-pass filter on the speaker outputs. The frequency can be set to 120Hz, 80Hz, or 60Hz. This Linkwitz-Riley High Pass filter has a 24dB per octave slope. The Hi-Pass filter can also be turned off, if desired.

Radio Detect: If you are using Hi-Level inputs, but the source unit cannot detect the presence of an audio system, or refuses to play audio from one or more speakers, you should set the Radio Detect switch to On. This activates a load resistor at the amp's input to indicate to the source unit that speakers are connected. Radio Detect should be set to Off if using Low-Level input signals. The amplifier's input sensitivity is 250mV to 10V.

Connections: The KEY180.4 has harnesses for the input signal, as well as for the power and output signals. The 4-channel Input Harness has two pairs of female RCA jacks for connecting a line-level signal from an aftermarket source unit. If you are using a factory head unit, or an aftermarket one without preamp outputs, you can cut off the RCA connections and splice the unit's speaker wires to the harness. The other harness has connections for +12V power, ground, and Remote turn-on, plus four speaker outputs. A short length of 14-gauge power wire with a 20A ATO fuse is provided for placement at the battery. Kicker recommends using 14-gauge wire (minimum) for the power wire from the battery to the amplifier. If you're bi-amping front component speakers or door woofer/dash speaker combinations, you should connect the tweeters to Amp 1 (front) and the woofers to Amp 2 (rear), and turn the Bi-Amp DIP switch to the On position. The passive crossover that typically comes with component speakers is not used when bi-amping.

Protection Circuitry: The KEY180.4 is equipped with a 3-way protection circuit that turns off the amplifier in the following situations:

  • Thermal: If the amplifier becomes very hot, its thermal protection is engaged. Overheating can be a sign of improper impedance on the speaker terminals or insufficient airflow around the amp.
  • Short Circuit: If the amplifier only plays at low volume levels, the short circuit protection is engaged. You should check for speaker wires that are shorted to each other or to the vehicle chassis.
  • Over/Under Voltage: If the amp shuts down only while the vehicle is running, the voltage protection circuitry is engaged. The amplifier is designed to operate at an input voltage between 6 and 16 volts. If voltage to the amplifier is not within this range, you should have the vehicle's  charging and electrical system inspected.

Loading accessories...

Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I choose this to amplify the sound from my factory head unit so the new Kicker speakers I purchased will rock my truck. Jill was a big help with amp selection. Thanks Jill. [ John  Feb 07, 2019 ]
A
Couldn't get it locally and you have good warranty. [ Randy  Feb 03, 2019 ]
A
Sold on the Auto EQ feature. [ Anthony  Dec 31, 2018 ]
A
This is the second one I've purchased. I had such a great result with the first one, this is going in the other car. [ Jeffrey  Dec 12, 2018 ]
A
experimental I can't decide on an amp for my 2018 Mustang GT. I want a power amp and subwoofer for the trunk. [ Kevin  Dec 11, 2018 ]
A
Looks easy to install. Built in clipping indicator for clean sound. Should be much better than Pioneer deck power. Built in dsp with auto install has good reviews. [ Matt  Nov 24, 2018 ]
A
Love this amp with the DSP. [ Gregory  Nov 14, 2018 ]
A
like that it will tune for me. [ Nathan  Oct 04, 2018 ]
A
Seeing a review online made me curious [ JOSH  Oct 04, 2018 ]
A
Dsp auto programming [ michael  Oct 01, 2018 ]
A
Add power to new speakers since stock head unit cancels out bass at certain levels [ Karen  Sep 28, 2018 ]
A
I like the size of it so I can mount it under my front seat and not have to wire all the way to the trunk and just want a little more punch from my factory head unit [ Bogey  Sep 22, 2018 ]
A
Auto EQ [ Deborah  Jun 28, 2018 ]
A
Great way to get an amp with DSP for a factory head unit [ J  Jun 27, 2018 ]
A
I ordered this fix the crappy sound coming from the factory head unit. [ Jeffrey  May 29, 2018 ]
A
I like Kicker products and this new design will fit seamlessly with my particular vehicle. [ Rhett  Apr 11, 2018 ]
SHOW MORESHOW LESS

16 questions already asked

Q
I installed an amp to help the sound of my 2018 Ram, with 8.4 Uconnect. Everything sounds great until someone calls and my hands free was way too loud. I have volume on 1 just to tolerate. Also GPS guidance voice commands are blasting in the vehicle. How do you remove these features from system so you don't get blasted out of the vehicle?
[ Billy C  May 27, 2019 ]
2 answers
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  Jun 07, 2019 ]  Staff
A
I believe you have to go into settings and adjust the prompts volume. And also while in phone call mode just turn volume down. Once you have it where u need it, the system will remember. I have an 16 Ram with the Uconnect nav radio. Used an adapter harness made for me by NetAudio so I would not have to splice the existing harness for amp. Dont lnow if this made a diffrence for my setup or if it would for yours.
[ Steve  Jun 05, 2019 ]
Q
How do you hook up dash tweeters, dash center, and 4 mids in the doors with the 4 channels on this amp? What is the best scenario?
[ Paul  Apr 29, 2019 ]
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  May 10, 2019 ]  Staff
Q
Once the install is complete, I know you can toggle the DSP on/off with the remote, is one beep ON, or two beeps ON? Also, does this amp sum the inputs? My installer says it doesn't so we had to add the AudioControl LC7i.
[ Andy19  Mar 15, 2019 ]
4 answers
A
One beep is DSP on. Two beeps is off. As far as summed inputs go, if your turn the fader dip switch to off, it only needs one pair of input channels and during the EQ process, the DSP will calibrate all 4 channels off of the one pair of inputs.
[ Dustin  Mar 19, 2019 ]
A
I only in stalled my amp no programming because I have an amp for subs and speakers wired to the head unit.my set up sounds great loud clear and just enough thump not to make my pickup not fall apart
[ Ronald  Mar 19, 2019 ]
A
The first part I can't remember, i would think the manual would say. The second part I don't know what that means. It would probably be best to contact Kicker. Sorry I couldn't be more helpful.
[ David  Mar 19, 2019 ]
A
As far as I know, 1 beep off and 2 on
[ khamsing  Mar 19, 2019 ]
Q
what if a car has noise cancelling? will this work?
[ Esteban  Mar 08, 2019 ]
1 answer
A
That's a great question! I feel that it would but I'm sure the Crutchfield team would have the answer to that.
[ Scott  Mar 09, 2019 ]
Q
how does the auto tune work if I have a powered sub driven off of the aftermarket head unit with rca connectors?
[ Tommy  Feb 20, 2019 ]
5 answers
A
Auto tune just does dash and door speakers or whatever speakers you've connected to the key. The INSTRUCTIONS clearly state to turn off or disconnect the sub. So, disconnect the rcas from your sub or keep it off during auto tune.
[ Mark  Feb 21, 2019 ]
A
The auto calibration doesn't factor into the sub settings as Kicker states that the sub must be disconnected during the auto calibration process.
[ Miguel  Feb 20, 2019 ]
A
you turn off the sub when your tuning it
[ Dennis  Feb 20, 2019 ]
A
Kicker tells you to turn off or unplug the Sub when running the auto EQ. Then adjust your sub to your liking once your full range is setup.
[ Ryan  Feb 20, 2019 ]
A
Turn the sub off. I pulled the fuse and wince it auto tuned replaced. The auto tune is great.
[ michael  Feb 20, 2019 ]
Q
I would like to run the amps 4 channels to a set of separates in the front (2 channels for the tweeters and 2 channels for the mids), then the Kicker powered sub under one of the front seats. Would this be a good use for this amp or is it better suited to full range speakers? thanks!!! Jim
[ Jim  Jan 29, 2019 ]
4 answers
A
Jim, I believe you can do that. I set mine up to run the tweeters and front mids together and the other 2 channels for the coaxials in the rear of my Jeep. It worked great except the auto tuning portion of the amp. Unfortunately that part doesn't work great for an open air vehicle but overall worth it for me. I hope this helps but if not, don't worry because Crutchfield techs are very helpful.
[ Scott  Jan 31, 2019 ]
A
Sorry, I returned it because I only needed a 2 ch amp with sub out, but that is exactly the way I was going to use it. You car should sound great. Jason
[ Jason  Jan 30, 2019 ]
A
Jim, I am currently running my amp in a 4 channel mode using 2 sets of component speakers. I really like this little amp. One of the best purchases I have made in a long time. If I had 2 of these amps I would utilize the bi-amp operation feature and run the separate tweeters and mids. I have all the confidence in this amp that using this mode would sound amazing. I have a Cerwin Vega powered sub in my trunk which is the slim sized one for under a seat. I just do not have enough room under my seat. I am very satisfied with the sound and range of the kicker amp for my fronts and rears, but when I get some more money, I want to invest in a more traditional sized powered sub. Those small compact sub's just do not go low enough. They seem to miss low end frequencies and even bottom out. My advice would be to run your Kicker Key in bi-amp mode and if your space allows, consider a more traditional sub.
[ SCOTT  Jan 30, 2019 ]
A
I wouldn't. The tweeters would be so loud you couldn't srand in. In that case you only need a 2 channel amp and run power to the mids.
[ LONNIE W  Jan 30, 2019 ]
Q
will this fix eq on different sources? my factory radio should ok with cd, usb, and aux. but sounds horrible with radio and satellite radio.i have almost no bass with radio and satellite.
[ sam86  Sep 25, 2018 ]
3 answers
A
I installed mine on a kenwood head unit , it cleaned up the sound . I don't think it will help you with your issues. It must be something with your tuner on the radio . If you are having station and satellite issues . Because they both use a station signal . Hope this helps
[ Bruce  Nov 22, 2018 ]
A
I don't believe it's able to differentiate between sources. It has basic RCA/high level input and will process the signal with the same EQ adjustment across all inputs on the factory radio.
[ Ryan  Oct 04, 2018 ]
A
This did add a lot of low end in my 2016 Ram 1500. I have the 8.4 Nav radio with aftermarket speakers non alpine system. Had mid and highs all day long, but no bass. Huge difference with this amp. Still playing with adjustments, but very happy with sound. Satellite radio is hit and miss depending on radio. But should help the sound....
[ Steve  Oct 04, 2018 ]
Q
Can you recommend a line out converter so that I can use to the DSP with higher output amplifiers, or is there a line of amplifiers that will accept the 45 watt RMS output of the Key?
[ caraudionewb  Sep 06, 2018 ]
2 answers
A
Any amplifier that can accept speaker level inputs will be able to handle the output of the KEY amplifier. Kicker amplifiers can accept speaker level inputs directly into the RCA inputs of their amps. That's what F.I.T. inputs are all about.
[ Bill  Sep 26, 2018 ]
A
Yes there is amplfires that will work
[ RICKY  Sep 07, 2018 ]
Q
Can I use this app on my motorcycle and set it up using a microphone and everything to make my system sound better or I can only be use on a car?
[ Charles  Jun 04, 2018 ]
1 answer
A
The KEY Auto Setup feature is made for use in a vehicle. It is not currently recommended for use on a motorcycle.
[ Ryan  Jun 13, 2018 ]  Staff
Q
What is the best way to connect a powered sub to this system?
[ Roberto  May 20, 2018 ]
2 answers
A
A powered subwoofer system would work completely independent of the KEY amplifier. If you're going to tap into the wires for signal, tap in BEFORE the Key amplifier, as the outputs will have EQ and time delay added.
[ Bill  Sep 26, 2018 ]
A
Powered subs don't use external amps. They have their own in the enclosure.
[ John  May 28, 2018 ]
Q
Already have a sub install want to add this to my factory headunit how would you and the RCA for the sub with this unit by also using all the channels to run all four speakers ?
[ James  May 20, 2018 ]
2 answers
A
This can absolutely be done. The KEY amplifier will simply go in-line your factory speaker wires behind the factory head unit. And then you'll simply grab the signal for the subwoofer BEFORE the Kicker KEY amplifier.
[ Bill  Sep 26, 2018 ]
A
It has a configuration available to use 2 channels for the 4 door speakers and 2 for the sub.
[ Matthew  May 20, 2018 ]
Q
How does the signal processing in this unit compare to the Kicker Front Row processor? Which delivers a better sound stage?
[ Matt  May 17, 2018 ]
2 answers
A
Both pieces feature EQ and time delay adjustments. The KEY amplifier does this via a microphone and Auto-Setup process. The results it calculates cannot be adjusted by you. The Front Row does nothing automatically, but allows you to change and fine-tune any and everything. Two different pieces for two different types of customers. :-)
[ Bill  Sep 26, 2018 ]
A
Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget.
[ Krissy  May 25, 2018 ]  Staff
Q
How will this interface with a factory Ram 2500 Uconnect head unit? Is there a adapter or harness?
[ david  Apr 26, 2018 ]
1 answer
A
For more details on vehicle-specific fitment or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up the research for your Ram 2500 model to help determine the best option for installing the Kicker KEY180.4 amplifier. Thanks! :)
[ Larry  May 05, 2018 ]  Staff
Q
Does this have speaker level inputs and outputs? There seems to be conflicting information in the item description.
[ PaulS  Apr 18, 2018 ]
1 answer
A
This amp has both speaker level inputs and outputs. The inputs are done a bit differently and most amps. This amp has RCA inputs that you cut off to get back to bare wire so you can use those inputs with speaker level signals. HTH! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=101
[ Paul  Apr 30, 2018 ]  Staff
Q
I see it requires a 4 ohm load. My alpines are 3 ohm. Is it a bad idea to use this to push them? Will it even work?
[ Danan  Apr 09, 2018 ]
2 answers
A
You can call Kicker tech support to verify if you'd like, but I've run the Kicker KEY with 3 ohm JBL speakers and even 2 ohm Infinity speakers no less than 10 times without one single hiccup after months of use. Kicker tech told me it was fine, but the amp will not output any more power.
[ Bill  Sep 26, 2018 ]
A
The Kicker KEY180.4 amplifier must be run at 4-ohm (minimum impedance) per channel. For more details or to discuss further, please contact an Advisor directly by phone (888.955.6000) or online chat. Thanks!
[ Larry  Apr 24, 2018 ]  Staff
Q
Does anyone know if 2 of these can be used together? I want to run my front speakers active, and then run my rears off of another. If I do that can I use the auto EQ and TA on the rears?
[ Anthony  Apr 05, 2018 ]
2 answers
A
Only one of the amplifiers can use the auto-setup process. The second amp would have to be used as a "dumb amp". Just a regular 45Wx4 amp. So use the smart amp on the fronts, and dumb amp (or just head unit) on the rears.
[ Bill  Sep 26, 2018 ]
A
For more specific questions related to your system, you'll be better off contacting an Advisor directly by phone (888.955.6000) or online chat. They'll be able to offer a more detailed explanation to make sure the Kicker KEY180.4 is the right fit; and if not, they can suggest a suitable alternative. Thanks!
[ Larry  Apr 16, 2018 ]  Staff
SHOW MORESHOW LESS

Loading articles...

TOP