Kenwood Excelon X500-1

Mono subwoofer amplifier — 500 watts RMS x 1 at 2 ohms (Factory Refurbished)

Item #: 613X5001

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25 Reviews | 4 questions - 7 answers

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Micro-chassis produces macro-power
This sweet-looking Kenwood Excelon X500-1 mono amplifier will deliver up to 500 watts RMS of bass pleasure, and this compact little beauty will fit almost anywhere in your car. You can adjust the built-in low-pass filter and bass boost to get just the right bass for your vehicle, while optimizing your sub's performance.

Kenwood Excelon X500-1 mono amplifier

Cool running, lasts longer
The unique fin shape of the extruded aluminum heatsink helps pull heat away from the amp's interior, reducing distortion and extending the amp's life. An intelligent thermal management system continually monitors the temperature, saving your music from any interruptions due to overheating.

Product Highlights:

  • mono subwoofer amplifier
  • 300 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms)
  • CEA-2006 compliant
  • variable low-pass filter (50-200 Hz at 24 dB/octave)
  • bass boost (0-18 dB at 40 Hz)
  • Class-D amplifier design
  • frequency response: 20-200 Hz
  • preamp inputs
  • fuse rating: 30A x 2
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 10"W x 2-3/16"H x 7-3/8"D
  • warranty: 90 days
  • Our 60-day money-back guarantee

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Hands-on research

What's in the box?

Download owner's manual

  • Refurbished mono subwoofer amplifier
  • Two 30-amp fuses (installed)
  • 2.5mm Allen wrench
  • Four 5/8" Self-tapping screws
  • 2 End caps (installed)
  • Instruction manual (English/ French/ Spanish)
  • Warranty card

Product Research

Features

CEA-2006 Compliant: CEA-2006 is a system of testing and measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for determining an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4-ohm load, with 1% or less Total Harmonic Distortion (THD) plus noise, and over a frequency range of 20 Hz to 20 kHz, when applicable (20-200 Hz for this subwoofer amp). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CEA-2006 allows consumers to compare car amplifiers and receivers on an equal basis. Using CEA-2006 criteria, the Kenwood X500-1 is rated at 300 Watts RMS x 1 channel with an 83 dBA signal to noise ratio.

Specifications: The manual also lists these non CEA-2006 compliant specifications:

  • Power: 500 watts x 1-channel (into 2Ω, at 100 Hz, no more than 0.5% THD, 14.4 volts)
  • Signal to Noise Ratio: 100 dB (at rated power)

Mono-Power Amp Design: The Kenwood X500-1 is designed with specific features to power your subwoofers with a frequency range between 20 and 200 Hz. This amplifier is not designed to power a full-range speaker.

Class D Amplifier Design: The amplifier design is Class D, which uses digital switching power supplies. The result is much higher efficiency (less heat generated) than Class AB.

Low-Pass Filter: The X500-1 has a built-in 24 dB/octave low-pass filter, continuously variable from 50 to 200 Hz. The crossover is always engaged (it cannot be bypassed).

Bass Boost: The bass boost circuit is centered at 40 Hz; boost is variable from 0 to +18 dB.

Aluminum Heat Sink: The aluminum heat sink increases the amplifier's heat dissipation efficiency, increasing the life of the amplifier.

Controls:

  • Input Sensitivity: 200mV-5V
  • Low-Pass Frequency: 50-200 Hz; continuously variable
  • Bass Boost: 0-18 dB; continuously variable

Inputs and Outputs:

  • Signal Input: one pair of RCA inputs
  • Power: screw terminal; accommodates spade connector up to 0.54" wide
  • Ground: screw terminal; accommodates spade connector up to 0.54" wide
  • Remote Turn-on: screw terminal; accommodates spade connector up to 0.335" wide
  • Speaker Output: one pair of screw terminals; accommodates spade connector up to 0.335" wide
  • Fuses: two 30 amp ATO fuses

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Kenwood Excelon X500-1 Reviews

Average Customer Review:

25 reviews
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easiest amp to tune

Written By tom, Greensburg Indiana on Tuesday, July 08, 2014

Crutchfield Customer Review (What's this?)

Have had multiple amps and this was the easiest to tune. Love the finish and the end caps hide the connections to keep a clean install.

Pros: Clean install with end caps and easy to tune

Cons: Have purchased two of these and have had no issues.

Nice amp

Written By Arrylay, St. Louis, MO on Monday, June 09, 2014

Crutchfield Customer Review (What's this?)

This amp was out of stock when I ordered it and shipped only a few days later. Worth the wait. Delivers plenty of power to drive my subwoofer.

Pros: Affordable

Cons: No remote volume control, but my head unit has the adjustment anyway so no big deal.

Great deal!

Written By Dz57, st. Joseph, MI on Thursday, May 15, 2014

Crutchfield Customer Review (What's this?)

Installed on my 03 Mini cooper. - Prefect size. - Lots of power. - Hooked up to Alpine SWA-10S4 BassLine Series 10" 4-ohm subwoofer. - Seems to run nice and cool.

Over all, it does exactly what I wanted it to do. Intact it's got more power than what the sub woofer can handle.

*highly recommended!

Pros: - Prefect size. - Lots of power. - Hooked up to Alpine SWA-10S4 BassLine Series 10" 4-ohm subwoofer. - Seems to run nice and cool.

Great Amp

Written By Luis Z, San Diego, California on Friday, April 18, 2014

Crutchfield Customer Review (What's this?)

This Amp is great. I have it connected to 2 subs that output 400-RMS at 2 Ohm. The amp is 500-RMS at 2 Ohm, and is just perfect. I recommend this as an affordable amp that does the job.

Great Item

Written By Anonymous, Vancouver, WA on Tuesday, April 15, 2014

Crutchfield Customer Review (What's this?)

Very happy with the experience of shopping at Crutchfield..





Pros: Very happy with my purchase . Kenwood makes a great product ...

Cons: None at all

Kenwood Excelon X500-1

Written By Anonymous, Charlotte NC on Wednesday, March 19, 2014

Crutchfield Customer Review (What's this?)

Easy to install and great quality sound

Fantastic

Written By Feelsgood77, Oklahoma on Tuesday, March 11, 2014

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

WOW....Just wow. The best amp ive ever bought. well worth the money. I'm powering a watt kicker sub (Kicker 10CVR122). it hits every low to high note so far. I would recommend this to anyone.

Pros: never overheats, maybe just gets warm but that's it. does what its suppose to.

Cons: non

Kenwood amp

Written By Jason, Tyler tx on Tuesday, February 25, 2014

Crutchfield Customer Review (What's this?)

Powerful amp at a great price. I ran 2 dvc 2 ohm phenix gold subs in an under seat truck box and they hit great. Won't win any competitions but if you want a nice clean sound at a great price. This is your amp.

Pros: Compact enough to hide in alot of places. Simple tuning controls.

Cons: Have not found any cons as of yet

Kenwood Excelon X500-1

Written By E Brown, Burlington, IA on Monday, February 24, 2014

Crutchfield Customer Review (What's this?)

Big punch in a small package. I'm running it @2ohm and only use half of the the gain.

Pros: Great looks. Small package Big power

Kenwood Excelon X500-1

Written By zach k, grove city, oh on Friday, January 03, 2014

Crutchfield Customer Review (What's this?)

i purchased this amp to replace my old mtx amp and am more than impressed!!! I bought the refurbished amp and have had no problems with the amp at all!! fast shipping and I had my subs hitting harder than they ever have.

Pros: everything!!

Cons: wsh I woulda baught sooner (;

Kenwood Excelon X500-1

Written By Anonymous, Parma, Ohio on Tuesday, December 31, 2013

Crutchfield Customer Review (What's this?)

I enjoy Kenwood products and this one seems as good as my past products, which have all been good. Very good especially for the price! Will recommend Crutchfield of course!

Pros: Excellent value, small size, low power consumption.

Cons: None so far

Kenwood Exceleon x500

Written By SeanA, Chicago, IL on Wednesday, September 11, 2013

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I've had this amp for over a year now and not once had any issues, I'm powering 3 10" rockford fosgate R2D4 subs and they bang hard. Love this amp Excelon all the way. I benched the amp and at 2 phms it actually puts out 623rms

Pros: small, power, sleak design, reliability

Cons: none

hard hitter

Written By Anonymous, Gering, NE on Thursday, August 29, 2013

I bought a factory. Refurbished unit was told there was a scratch I could nit find,I am powering a JL W6V2 in 2 ohms load at12.8 volts set at about 155 hz +10 bass bost at at full power it bumps hard I love it an I have in many locations drove 8+ hours running it full out the hole trip never overheated or turned off just 100% EXCELON quality I love it going to add another X500-1 and another JL W6-v2

Pros: Super clean power low heat constant purformance

Cons: Hearing loss

Kenwood Excelon X500-1 - factory refurbished

Written By JF, Norcross. GA on Thursday, August 15, 2013

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I bought the Factory Refurbished unit and I am very pleased with the product I got. Yeah, it has some scratches on the front that made it look a bit used, but it still has it's natural good looks.

As far as features go, well there aren't any. You get the basics, a bass boost and a low pass filter. It's a simple design and for me, there is nothing wrong with that. That is actually part of the attraction I have for this amp - a simple design with few controls, compact and lightweight, great price, with certified power. Details are a little slim on the thermal shutdown function, but the amplifier should turn off to protect itself in case of overheating.

I have this powering a sealed 8" subwoofer at 4 ohms, a very modest system for sure, but very enjoyable to listen to. I think this amp must be great for somebody who wants to add some low end impact in a simple configuration, without having to tweak too much. Performance is great in my setup. If you had a ported 2 ohm load, I'm certain this little amp could help rattle your car.

Pros: CEA 2006 certified power, compact, lightweight, simple attractive design, great price on refurb amp Thank you, Crutchfield for offering great deals on Kenwood products through factory refurbishment!

Cons: No subsonic filter, no speaker level input, no preamp output, no signal sensing turn-on - If you want any of these features you'll have to look elsewhere. Kenwood DOES offer these features in some of their other models, just not this one.

Great Sub Amp!

Written By Shaggy, Hayden, ID on Tuesday, June 11, 2013

Crutchfield Customer Review (What's this?)

Great sub amp! Stays cool, small size, great price! I'm pushing a Kicker12' CVR and the gain is way low. Rattles my eye balls!

Pros: small size, stays cool, great price.

Cons: dumb little plates that need removal for install of wires.

X500-1

Written By Tony Ornelas, Frisco, Tx on Thursday, June 06, 2013

Crutchfield Customer Review (What's this?)

Good bang for the buck, the first refurb unit I got was dead, but customer service got another unit to me right away. I paired this with a 4ohm excelon 10" subwoofer in my mustang gt and it sounds great... It really completes the sound system.

Pros: Cheap price, small footprint, low power consumption

Cons: Refurb unit arrived dead, I miss the sound from the older analog amps.

its tough

Written By david, st.louis, mo on Sunday, May 12, 2013

my be I got lucky... but I had it running two kicker comp 12"s and a alpine type r at the same time.... it didn't over heat at all... I know it wasn't enough power but im surprised it didn't fry r cook.... so imam see how tough it really is by running 3 type r's on it ... just to see... ps I know they r under powered n miss match.. but I was ballin on a budget.

Good sound, poor built-in boost

Written By Anon, Ocean City, MD on Tuesday, May 07, 2013

Crutchfield Customer Review (What's this?)

Overall, this amp is great. It sounds great, was simple to put in, and really increased the quality of my bass. Built-in fuses is a nice feature. The dials on the back are easy to access and configure. The built-in bass boost goes from 0 to 18 dB, but it has issues (read cons for details). Looks sharp and has a nice profile. Doesn't have any problems with heat (so far) or for being on for extended periods of time (most I've had this thing pumping so far is 2.5 hours straight). Really makes my car bump.

Pros: Small size Easy installation Hasn't overheated in my trunk with 0 circulation in 90+ ºF weather. Have yet to test it above 100, but it hasn't gotten that hot yet. Sounds solid.

Cons: The built-in bass EQ doesn't boost all bass frequencies. It seems to boost up to 125-175KHz ish and then cut off. The mid bass is thus very quiet of you use the bass EQ. Quiet as if you had no boost on at all and that's not good. I had to use a mix of boosting at the headunit (which you're NOT supposed to do) and Bass EQ to get the mid-bass and high-bass sounding okay. Not enough to make me want to return the product. I don't know if this is a common problem, but if it isn't, would not buy again

Works flawlessly

Written By Brandon, Owings Mills, MD on Monday, April 08, 2013

Crutchfield Customer Review (What's this?)

Easy install, flawless quality from kenwood on this unit. Works perfectly and delivers clean power to my woofer.

Pros: Everything

Cons: Nothing

Awesome!!

Written By Noah, Salem, VA on Tuesday, February 05, 2013

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

this is my first amp ive ever owned, and i am completly blown away at how good it is!! ive been around a lot of other systems with poor sound quality and low power. i have a 12" JL W-O v3 in a ported box and i blow away any of my friends sound systems! i am about to upgrade to 2 JL W-O's running about 500 RMS and i cant wait to hear it! this Kenwood will have no problem suppling them. another amazing product from Kenwood.

Pros: Easy to use, looks great, stays at low temperature, even when running for awhile. not to mention the awesome sound quality.

Cons: not much customization for filters and things, and no remote bass knob. still a GREAT product though

Nice Amp!

Written By SeanyD, Southern Oregon on Saturday, December 22, 2012

Nice amp, compact, fits under my seat perfectly. I have had a lot of amps including JL 500/1, Alpine 1000, Alpine m450, and this amp is right there with these no problem. I pushes my 12" Rockford Fosgate WAY hard. Definitely get this amp.

Pros: Small, and solid.

Cons: None

Good little amp

Written By Mike A, North Olmsted OH on Wednesday, October 17, 2012

Crutchfield Customer Review (What's this?)

Have it driving a used kicker CVR 10" wired up in 2 ohm in a sealed box in the trunk of my 2011 fusion. When cranked up it rattles my license plate on the out side of my trunk. Other reviews of kenwood amps people complain about them burning out after 6 months to a year, well that is because they don't set the gain properly. If you set the gain correctly then they are great little amps.

Pros: Very compact for its output.

Cons: None that I have noticed

Clean and good looking

Written By Daren, Spokane WA on Wednesday, September 05, 2012

Crutchfield Customer Review (What's this?)

This amp is way clean and it has plenty of power. It is powering a Rockford 12" and I can only ramp the gain 1/2 way. I didnt need the bass boost either, as it is booming the neighborhood just fine without it. I could easily add another 12", and this amp wouldnt bat an eye. Love the clean look of the amp too.

Pros: small, and loud

Cons: None

Powerful amp compact size.

Written By BuryYourDiamonds, Wethersfield, CT on Sunday, August 12, 2012

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I have this amp hooked up to 2 12" JBL GT-5 subs. I wired both subs in parallel so the amp is pushing out 500 watts RMS @ 2 ohms and I have to say WOWWW. Those JBLs pound so hard now that it makes my rear view mirror pretty much useless and i can feel the bass rattling my brain lolll and thats without turning up the amps bass boost all the way i couldnt imagine how hard they would pound if i did. This amp def has tremendous power and its very compact so it can fit pretty much anywhere in your vehicle, i just so happen to drill it down to the top of the sub box cuz it looks pretty cool there lol. Now besides its power and compact size, crutchfield offers a free 4 gauge wiring kit with it thatll save you $80 which is the cherry on top of the deal. I would def reccomend this amp to anyone who wants to add raw power to their subs and wants a sleek and compact amp doing it.

Pros: POWER, compact size, and a free wiring kit with it sweet freakin deal!

Cons: none

Great!

Written By VictorM, Lakewood Ranch, FL on Saturday, July 07, 2012

Crutchfield Customer Review (What's this?)

Great amp, small compact. I have it hooked up to a pair of MTX Terminators Sealed Box 400 RMS @ 2ohm. This amp can seriously move them no problem. I do recommend this amp to anybody.

Pros: Small compact looks good

Cons: No remote bass controller

Get everything you’ll need to enjoy your new Kenwood Excelon X500-1

You'll need an amp wiring kit to install your new amplifier, as wiring is not included.
Bring the music from your amp to your speakers.
Patch cables take the music from your stereo to the amplifier. Most amp wiring kits don't include them.
For multi-amp systems, you'll need a separate fuse holder.
Helps protect your car's charging system and improves power handling. Required power and ground wires not included with cap.
The right tools will make the installation easier.
Have your new amplifier put in by a qualified professional in your area.
Rockford Fosgate RFK8i

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8-gauge amplifier power and signal wiring kit

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T-Spec 8PK Installation Kit

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8-gauge amplifier wiring kit — includes speaker wire

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Rockford Fosgate RFK8

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8-gauge amplifier power wiring kit

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EFX PA8BX Wiring Kit

EFX PA8BX Wiring Kit

8-gauge amplifier wiring kit — includes 2-channel patch cable

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T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1

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T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

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Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B

(51)

T-Spec 2-Channel RCA Patch Cables

T-Spec 2-Channel RCA Patch Cables

Available in 7 different lengths (17-foot)

Item #: 120RCA172

(27)

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EFX 17-foot RCA Patch Cable

EFX 17-foot RCA Patch Cable

Item #: 142A17C

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$7.99
After $2.00 Savings Add to Cart
EFX CFHG4 Fuse Holder

EFX CFHG4 Fuse Holder

In-line AGU fuse holder accepts 4- to 8-gauge wire

Item #: 142CFHG4

Rockford Fosgate RFFAGU Fuse Holder

Rockford Fosgate RFFAGU Fuse Holder

Platinum-plated AGU fuse holder
Fits 4- or 8-gauge cable

Item #: 575RFFAGU

(25)

$10.99
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T-Spec Capacitor

T-Spec Capacitor

1.5-farad capacitor with red LCD meter

Item #: 12015DDC

(11)

$79.99
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S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

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Pro.Fit Wire Worm

Pro.Fit Wire Worm

Installation tool helps route wiring through tight spaces

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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

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Metra Crimp Tool and Connectors

Metra Crimp Tool and Connectors

Package contains crimp tool and over 150 pieces

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S&G Tool Aid 87650

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Door Trim and Panel Removal Tool

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Skewdriver Pro SPK4042

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Bojo Trim Panel Tools

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Set of 6 pry tools — helps remove interior and exterior trim and door panels

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DEI Heat Shrink Tubing

DEI Heat Shrink Tubing

Black 4-foot length (Assortment)

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InstallCard: Amp or Equalizer

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Autosound 2000 Disc One

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Autosound 2000 Disc Five

Autosound 2000 Disc Five

System Demonstration — Test CD

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Questions & Answers Ask the community. Share your knowledge.

4 questions already asked

Thanks for your question. For information on selecting the best amp for your system 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 between the amp models and help you make the best choice. [ Krissy  Jun 11, 2014 ]  Staff
If you mean combine wattage like wire them both to the same sub. No. It doesn't work like that. If you have a DVC(dual voice coil) sub and 2 of the same amp and know what your doing. Yes you can put one amp per voice coil but two different amps, things will break and you will be sad. [ evan  May 14, 2014 ]
Yes [ GRIFFIN  Feb 24, 2014 ]
Yes it does require a remote wire, if it didn't have one it would draw too much power from your battery when your car wasn't running causing your battery to be drained. [ ROBBY  Feb 19, 2014 ]
Yes, I think all amps require one! If your RCA cables don't have a wire built in, just run one with those or the 12 volt power wire. [ MATTHEW  Feb 19, 2014 ]
Yes. Just a simple single wire to and ignition source or the blue remote wire on an after market stereo. [ JASON  Feb 19, 2014 ]
There are many variables with audio systems so that is why the amp has some of these adjustments. What works in one car may not work as good in another. The lpf depends on your speaker, I generally go with a lower setting, 90 or hz or lower. Sensitivity will vary with head unit. I like to get the system set up without the sub first, then turn it on and try to bring it in line with the rest of the system. You can try sensitivity at the half way point and go from there but in my vehicle I had to turn it down low! I enjoy tuning my system so try it out with different tunes and try to have fun listening to music. Sorry for such a long response but I hope it helps and I hope you enjoy your new system. Don't be afraid to change settings and listen again! [ MATTHEW  Dec 30, 2013 ]