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T-Spec Capacitor

3.0-Farad capacitor with red LCD meter

Item # 1203DDC

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Item # 1203DDC

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About the T-Spec Capacitor

Smooths out the bass

T-Spec's 3-farad capacitor will help your vehicle's charging system keep up with your high-powered sound system. When the power of the bass threatens to overwhelm the electrical system, this cap quickly provides a jolt of stored power to keep the beat pounding and your headlights from dimming. And it recharges quickly, so it's always ready for the next hit.

Displays the voltage

A bright digital meter displays your system's voltage, so you can monitor how things are going and avoid overtaxing your vehicle's charging system. We recommend this 3-farad cap for sub amps delivering up to 3,000 watts RMS. Distribution-type connections on its top simplify the wiring of the capacitor and your amplifier. Warranty: 1 year. 

What's in the box:

  • 3.0 Farad capacitor
  • 2 Polycarbonate mounting brackets (installed)
  • 5mm Allen wrench
  • 4 Self-tapping screws (5/8" length)
  • Resistor bulb
  • User's Manual
MFR #V8-3DDC

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T-Spec Capacitor reviews

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T-Spec Capacitor

Rado from Lombard, IL on 6/12/2019

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I'm sure this may be fine for other amps but I have to return this due to the JL Slash 1200 amp drawing too much. Lights still dim and battery needle still drops as amp bumps. They say 1 farad for every 1000 watts?! Ummm no. Crutchfield should not recommend this for the Slash 1200. Need a larger capacitor or battery.

Pros:

Cons: Does not do the job for a powerful amp that draws too much like Slash 1200

Crutchfield response on 6/18/2019
Rado contacted our Customer Support team and set up a return. Purchases from Crutchfield can be returned or exchanged within 60 days.

1 of 1 found this helpful

Solved my electrical issues!

Michael from Levittown, PA on 5/9/2019

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I had already upgraded my alternator, big 3 cables, and battery and still was experiencing dimming headlights and sometimes with headlights on while at a red light my 75x4 JL Audio Slash amp wound shut off. My bass amp is a JL Audio Slash 500x1. After a lot of reading it seemed to me about 60% of people or so believe capacitors work and the rest do not. Well this capacitor completely solved my problems and I had one many yrs ago that also worked great with nothing upgraded. I think people who say capacitors don't work is just a case where a capacitor didn't work to solve their particular problem. Give this Tspec capacitor a shot, if it doesn't help ur problem, return it. It was very easy and quick to install; directions sound more complicated than it actually was. Very happy with purchase.

Pros: Smaller and better connections than 1.5 farad Tspec.

Cons: Charging with resistor extends install time, but u must do it or there could be dangerous consequences.

Crutchfield response on

2 of 2 found this helpful

Great product

JC from Santa Maria, CA on 3/22/2019

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Works great! Easy install, good price.

Pros:

Cons:

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0 of 0 found this helpful

T-Spec Capacitor

Crutchfield customer from Lake Charles, LA on 3/15/2019

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Plenty of power for my prime 1200d and punch 400-4.

Pros:

Cons:

Crutchfield response on

2 of 2 found this helpful

Power that keeps on giving

Crutchfield customer from Fort Mill, SC on 2/19/2019

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This capacitor makes crisp tight base eliminating headlight flicker and gives power needed smooth lows hard bass that is amazing with my Rocksford 12 subwoofer

Pros: Crisp tight base and power amps need

Cons: None

Crutchfield response on

0 of 0 found this helpful

A must for great bass

Luiz from Spring, TX on 12/6/2018

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This high quality cap sounds awesome in my truck, keeps the voltage steady at 14.5 with very low fluctuation. The installation is very straight forward. I wish it came in blue LED display over the red that looks boring and a separate remote turn on, over the auto shut off to prevent small amount of battery drainage over time. Over all, I'm very pleased with this purchase.

Pros: Strong Bass has plenty of reserve.

Cons: No separate remote turn off

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1 of 1 found this helpful

Good construction

Josh from Garden Grove, CA on 11/20/2018

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Haven't installed it yet just waiting until after the holidays but it's construction is very high quality and it's visually appealing. Something to note is that it says it can take 4 awg but if you pull the little terminal sleeve it has the input capability of 1/0 so that was pretty cool.

Pros: Cool design on it

Cons: Crutchfield didn't offer all too many options

Crutchfield response on
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0 of 1 found this helpful

Used??

Crutchfield customer from Salinas, CA on 8/19/2018

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I received this the day they said it would arrive. As I pulled it out to inspect it I noticed the box the cap comes in is crushed and ripped. No big deal I'm not using the box, but when I pull the cap out it's all scratched up from the top to the bottom on the front part of it. It looks like my review title states... it's used or a return. If not for my time line of needing to get this project done. I would of returned it for a new one like I thought I had paid for. This should of been addressed at the time it was being shipped out. Not once it arrives to the costumer. I have no complaints about the representative that I spoke with when I made my order. River was very nice and a delightful person to deal with. I will give the cap another review later on how well it performs.

Pros:

Cons:

Crutchfield response on 8/22/2018
Once we saw this review, our Customer Support specialist, Case, reached out to this customer to apologize and resolve the issue. If you encounter a problem with anything you purchase from Crutchfield, it's important to contact our Customer Support or Tech Support teams right away. They can help you solve the problem or set up a return or exchange within 60 days of purchase.

0 of 0 found this helpful

More than enough power

Keith from Westbury, NY on 7/29/2018

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Needed something to offset a 1200 W Alpine for my 2013 Somata Se. Working better than I expected. Especially like the digital read out of the voltage as the amp powers the deep bass. I world recommend if you don't want the headlights flickering

Pros: Everything

Cons: Nothing

Crutchfield response on

0 of 0 found this helpful

T-Spec Capacitor

Crutchfield customer from El Portal, FL on 6/24/2018

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Easy to install and does what it should. No more dimming lights on hard bass drops.

Pros:

Cons:

Crutchfield response on

2 of 2 found this helpful

T-Spec Capacitor

Guest from Berkeley CA on 6/20/2018

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"Smooths Out The Bass" LOL Q: Do you really want to "smooth out" the bass? A: No! Maybe: "Holds Power For More Solid Bass" would be better... you think?!?!

Pros: Additional power for additional power.

Cons: Installation can be problematic.

Crutchfield response on

0 of 8 found this helpful

T-Spec Capacitor

logan from Drasco, AR on 6/17/2018

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Easy hook up and it works as it should. No more dimmed lights every time the subs hit!

Pros:

Cons:

Crutchfield response on

2 of 2 found this helpful

Bueno bonito y barato

Agustin from Guayama, PR on 6/10/2018

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bien construido

Pros: construcción cómodo para ontalar

Cons: no

Crutchfield response on

0 of 2 found this helpful

Don't see why people hate capacitors so much.

Day from Kansas City, MO on 4/1/2018

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I really don't know why everyone dislikes capacitors so much. This thing has done wonders for me and wish I would have jump on and got one years ago. Does everything its suppose to do. Holds a charge like suppose to and doesn't let the volts dip down to low. Everything else in the car is stock. Battery and alt. As this is a lot cheaper then adding a big battery and a alt. Volts still dip to a low 12.5 on low dips (Going by volt meter on car dash not cap) and hard hits but its rare and on really demanding songs where you don't want to be in car long with that much bass going on. Head lights don't dim any longer at least to where you can tell it is. I am pulling around 300 amps or close to it.

Pros: No light dimming any longer. Volts for the most part stay above 12.5 Volt meter on Cap.

Cons: It's has dipped below 12.5. But not very often at least the volume level i set it to. The casing is wrapped in plastic. It does tear easy. May or will need 2 of these to keep a solid 14 volts so it doesn't flinch on hard or deep bass hits.

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2 of 2 found this helpful

T-Spec Capacitor

Robert from Tennessee on 11/3/2017

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I like having back up power for the hard hits on my subs without robbing power from my trucks system .

Pros: Does a great job !

Cons: None

Crutchfield response on

1 of 2 found this helpful

T-Spec Capacitor

Crutchfield customer from Denver co on 6/5/2017

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My main goal was to have people to have people roll their windows up in traffic and have businesses and establishments Windows shaking and with this compacity I have succeeded 10 Stars if I could give it to you

Pros:

Cons:

Crutchfield response on

5 of 18 found this helpful

T-Spec Capacitor

Shannon from Oak Lawn, IL on 6/1/2017

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Easy installation :) and haven't had any problems with it works well on a 800 watt 8 channel jl audio amp I am using to run my entire system includes subs

Pros: Easy installation and haven't had any problems with it it's a good product

Cons:

Crutchfield response on

2 of 3 found this helpful

Great product

Thomas from San Mateo, CA on 4/21/2017

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Awesome product no complaints it stopped my headlights from flashing on hard bass hits

Pros: Easy to install once I figured out where to mount it

Cons: None

Crutchfield response on

1 of 1 found this helpful

T-Spec Capacitor

Crutchfield customer from Elizabethtown, PA on 4/2/2017

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Love it and great price! It works very well.

Pros:

Cons:

Crutchfield response on

0 of 1 found this helpful

Solved the problem it was supposed to.

Douglas from Monterey, CA on 2/7/2017

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Not every install benefits from a capacitor. Mine did. Had wired my 1200 watt amp driving a single 10" with #8 wire. Had voltage drop/spike issues resulting in poor sound quality. Installed capacitor without difficulty. Straightforward. No problems. Stopped the twitch in my voltage and produced a notable improvement in sub performance which I could describe as tighter/cleaner bass. If your amp is starving for power momentarily as the music asks for high energy, this is a great solution.

Pros: Easy install helped by wiring options, kit includes resistor to charge and friendly hardware to make mounting easy.

Cons: The material of the outside of the capacitor containing graphics and brand is delicate and shreds when slipped in and out of mounting bracket. It is very easy to cosmetically injure this product.

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8 of 9 found this helpful

T-Spec Capacitor

Todd from Port Orchard, Wa on 1/28/2017

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Product looks amazingly sharp and does its job very well

Pros:

Cons:

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0 of 0 found this helpful

T-Spec Capacitor

Crutchfield customer from Boise, ID on 1/13/2017

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Works great, using it to run my 600 and 1200 alpine amps..

Pros:

Cons:

Crutchfield response on

1 of 1 found this helpful

Huge complement!

Brandon from Florida on 11/21/2016

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Wow, I pulled this thing out of the box and was like "this thing looks amazing!" it is a serious complement to my subwoofer and it works really well. Before I had serious headlight dimming and now it is only just barely noticable if I have the car stopped and idleing. I also really like the double ports on the top, it made wiring a little nicer. Otherwise it perfect!

Pros: Works as it should, looks fantastic! And the wiring was super awesome to.

Cons: None

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3 of 3 found this helpful

T-Spec Capacitor

John from Smyrna, GA on 11/3/2016

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Good capacitor for the price. It did not solve all my power problems but made a significant improvement. Still have dimming. But to be fair I'm running a Sundown Audio amp and subs which are Extremely power hungry. It's able to hold my voltage at around 13.0 from a charging level of 15.3 during heavy bass, which isn't bad considering the equipment I'm running. It was dropping into the 10s. I need to upgrade to an XS battery & 200+ amp alternator. My only complaints are that the capacitor I received looked slightly used & it does not come with a proper initial charging card or even a resistor, only the bulb. All in all it's a decent product and delivers good performance for the price.

Pros: Price & design.

Cons: Needs better initial charge equipment. Looked used when opened.

Crutchfield response on

2 of 3 found this helpful

No Difference For Me

Rudy from Miami, FL on 3/31/2016

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Installed and see no difference. I'm running it to a single 500 watts rms amp (4 guage KnuKoncept Wiring) to a single Rockford P3 12" in a built to spec sealed enclosure ( 10 Gauge Wiring). My alt is stock 145amp and haven't done the big 3 yet. My lights still dim the same and I see zero difference. My battery is 34/78 size 800 CCA. Funny thing is I was wanting to switch out my system for a Alpine Type R 12" with an Alpine PDX M12. Guess I will have to wait until I could fix this lack of power I been stuck with

Pros: none

Cons: none

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1 of 10 found this helpful

T-Spec Capacitor

Jay from wilmington, IL on 2/26/2016

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using Kicker 12CX1200.1 and Kicker 12CX300.4 the capacitor worked great voltage was dropping to 9 volts not any more in a Pontiac trans am firehawk

Pros:

Cons:

Crutchfield response on

3 of 3 found this helpful

No dim

Shawn from Santa Rita, Guam on 12/22/2015

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So far its kept my Amp from shutting off even when its too hot to touch! My lights never dim. So far so good.

Pros: Amp Keeps running

Cons: none yet

Crutchfield response on

2 of 2 found this helpful

Capped up

Chuck B from Georgia on 12/8/2015

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First time with a cap, not running enough power to really need this but I wanted a little more reassurance that my amp wouldn't get starved! Clamp connections no ring terminals needed, don't buy any like I did! Ha!

Pros: Easy install, looks cool.

Cons: None

Crutchfield response on

2 of 2 found this helpful

T-Spec Capacitor

Crutchfield customer from Maryland on 9/28/2015

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Very easy to install

Pros:

Cons:

Crutchfield response on

0 of 1 found this helpful

Just what I needed

Joey from North Dakota on 9/5/2015

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My system kept shutting off, and this has prevented that completely. Would highly recommend. Easy installation

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

cool product

Blackstarr617 from Massachusetts on 8/31/2015

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Inexpensive addition to make my system complete, plus system bangs with little to no power drain

Pros: Price,look

Cons: None

Crutchfield response on

1 of 1 found this helpful

This product kills it!!!!

G31e from victorville on 6/8/2015

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Awesome product took care of all of my dimming problems.

Pros:

Cons:

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0 of 0 found this helpful

tspec 3 farad capacitor

bones from Maine on 5/11/2015

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works awesome lights don't dim subs get the extra power they need when they need it

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Excellent!

Nick M. from Anchorage, AK on 4/20/2015

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So I have upgraded my stereo a few times replacing parts and pieces to get everything just how I want it, never really put much thought into the power cap beyond whatever was cheap. Holy cow what a difference spending a few more dollars makes. This thing is great! Supplies all the power my subs need when they need it, which is really great since I don't have the room in the truck cab for a second battery and I didn't want to buy a super spendy alternator. I would highly recommend.

Pros: Looks great, works great.

Cons: I haven't found any!

Crutchfield response on

4 of 4 found this helpful

T spec

Nik from Mishawaka in on 4/17/2015

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Hasn't worked yet not sure what I did wrong during installation but it turns on and off randomly

Pros: Nice easy and small

Cons: Hasn't worked properly yet

Crutchfield response on 4/20/2015
We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

0 of 3 found this helpful

T-Spec Capacitor

Jeromy from Chicago, IL on 10/16/2014

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Affordable and efficient.

Pros: Easy to hook up and helps a lot when needing the extra juice.

Cons: Installation recommends 5-20 sec pre charge with the included light bulb before connecting. I believe it needs much longer to prevent an arc happening. Perhaps 2 min.

Crutchfield response on

2 of 3 found this helpful

power when needed

Stan from Michigan on 8/15/2014

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Deffinitley worth the money. I have had multiple capacitors and none of them were really that effective at controlling voltage regulation. Then i got this one and it delivers evertime its needed.

Pros: appearance. installation. quality.

Cons:

Crutchfield response on

2 of 2 found this helpful

T-Spec 3 Farad Cap

Ed from LA on 7/31/2014

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So far this is the one component I haven't had some type of problem with. Been in use for several weeks now and I haven't noticed any symptoms of reduced voltage like headlight dips. Person that helped me install the power amp said he had never seen a cap charge up so fast as this one.

Pros: Appears to be performing it's purpose successfully. The only component I haven't had an issue with so far.

Cons: None so far.

Crutchfield response on

2 of 3 found this helpful

it works

kcurtsinger from spring Texas on 7/15/2014

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The product is fine and works. The only complaint is the bolts that hold down the wires won't tighten down properly. Its like they were stripped when I got it!!

Pros: Looks good and helps the lights

Cons: The screw downs are crap!

Crutchfield response on

0 of 0 found this helpful

t-spec 3.0-Farad capacitor

Juan from Santa Ana on 7/8/2014

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Worked well lights still dim but at higher volume checked alternator and its going south so need to replace it. Hopefully after that all will be good.

Pros: Has 2 terminals for power and ground no need to buy a distribution block to install

Cons: none

Crutchfield response on

3 of 3 found this helpful

T-Spec Capacitor

Crutchfield customer from IOWA on 3/14/2014

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Received it with manufacturer packaging old and falling apart. No glue to keep plastic window in place and would've been a good product I think. Bulb was shattered upon arrival. Crutchfield handled my return great and got a full refund.

Pros:

Cons: Packaging

Crutchfield response on

2 of 7 found this helpful

Decent

Dvargas1123 from South Plainfield, new jersey on 2/15/2014

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My headlights still dimmed, however I had a 1 farad cap on earlier which would drain and shut off my amp, so I had to upgrade to the 3 farad, no longer turned off, so that's a plus. I recently blew my inline fuse however so that's where I'm at now

Pros: No longer drains and shuts off amp

Cons: Headlights continue to dim

Crutchfield response on

3 of 9 found this helpful

T-Spec Capacitor

Crutchfield customer from Lewis Center, Ohio on 10/27/2013

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Does everything that is says stops headlights from dimming would definitely recommend to anyone.

Pros:

Cons: none

Crutchfield response on

6 of 8 found this helpful

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Pros:

Cons:

Crutchfield response

<< >>

More details on the T-Spec Capacitor

Mark G.

Product Research

Features

Overview: This T-Spec v8-series digital capacitor will improve the performance of your car's electrical system by acting as a buffer between the alternator and your amplifier. Stored energy from your car's electrical system is held in the cap and quickly released to the amplifier when needed. High current demand occurs when the music you are playing contains a loud, transient, deep bass signal.

Capacitance: This T-Spec v8-series digital capacitor has a rating of 3.0 farads. While you can never have too much capacitance, it is recommended that you use a capacitor with a minimum of 1 Farad for each 1000 watts of amplifier power.

Distribution Top: The capacitor features an impact-resistant polycarbonate distribution top with two 4 AWG positions on the positive (+) side and two 4 AWG positions on the negative (-) side. You can use 4 AWG or 8 AWG wire when wiring the capacitor into your system. The power/ground wire connections have set-screw terminals that can be tightened/loosened with the supplied 5mm Allen wrench.

Voltage Meter: This capacitor has a digital voltage meter on the top to help you monitor your electrical system's performance.

Reverse Polarity Protection: If the capacitor is wired incorrectly, you can damage your equipment or electrical system. To prevent this, the capacitor has an internal relay system which disables the capacitor and triggers a buzzer to sound.

Resistor Bulb: The capacitor comes with a resistor bulb which is used when initially charging the capacitor, and to discharge the capacitor when removing it from the system. You should keep the resistor bulb in a safe storage location when not in use.

Mounting System: The cap comes with a simple mounting system that lets you mount the unit vertically or horizontally, using the four supplied self-tapping screws.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I trust the Products that crutchfield sells. [ E  Aug 12, 2019 ]
A
The best choice and excellent price. [ AUSENCIO  May 30, 2019 ]
A
I need a lot of juice to power my amp and i want to have an alternator that lasts [ Jordan  May 28, 2019 ]
A
To help battery and alternator [ Edvin  Apr 14, 2019 ]
A
Keep the stress off my battery and alternator. [ JC  Feb 24, 2019 ]
A
Appears to be top quality for the money. [ Thomas  Feb 24, 2019 ]
A
The only capacitor offered [ Patrick  Feb 07, 2019 ]
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I've owned capacitors in the past due to slight dimming issues and they've always solved my problem. [ Kevin S.  Feb 06, 2019 ]
A
Protect alternator [ Will  Aug 22, 2018 ]
A
Chose the capacitor due to power drain my system in my truck is doing. This should take care of the lights dimming. [ Burton  Aug 19, 2018 ]
A
I have a 1200 watt mono Alpine amp that requires this for system to work efficiently and this product has been reviewed favorably by other customers [ KEITH  Jul 16, 2018 ]
A
Hoping it'll help give me the bass when my car needs it. [ H  Jul 01, 2018 ]
A
To eliminate dimming headlights. [ Rodney J.  Jun 05, 2018 ]
A
Purchased 1.5 farad in this brand before [ David  May 08, 2018 ]
A
To reduce the strain on my car battery during startup and during heavy loads. [ MICHAEL  Feb 18, 2018 ]
A
Dimming when sub kicks [ Adil  Dec 29, 2017 ]
A
other websites had good reviews as well [ Daniel  Oct 02, 2017 ]
A
To use on boat to help power amp for subs [ Paul  Aug 23, 2017 ]
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To help keep from draining my alternator [ charles  Aug 18, 2017 ]
A
I already have a capacitor, but wanted to upgrade the size. Daisy recommend the extra battery, but just seemed a little extreme for what I have. [ Gregory  Aug 15, 2017 ]
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just trying to ease the load on my boat batteries and charging system. [ Aaron  Aug 09, 2017 ]
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For amp [ SHANNON  May 31, 2017 ]
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To proctect my battery [ CONRAD B  May 12, 2017 ]
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replacement for existing that finally pooped [ Kirk  Apr 23, 2017 ]
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sleek design [ Sean  Mar 29, 2017 ]
A
After Alpine X009, 1-Alpine R10 Dual 4 Ohm, and Kicker 1000.1 were installed, my voltage drop was excessive. I have dimming lights and the cruise control will even kick out when hard bass hits. I am unable to push the system very hard at all without the amp going into protection mode, which I believe is from the voltage dropping below 11.9 at the amp. HO alternator has already been replaced. [ JOSHUA  Feb 23, 2017 ]
A
TO PROTECT CAR CHARGING SYSTEM [ C  Jan 30, 2017 ]
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To fix a lighting solution with my amp and sub install [ Kevin BigDawg  Jan 08, 2017 ]
A
Good reviews and good price [ ADRIAN  Dec 30, 2016 ]
A
Excellent power cap for the money, has performed well and continues to amaze. [ Nicholas  Dec 16, 2016 ]
A
the reviews were great [ E  Sep 13, 2016 ]
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I'm adding a 5 channel amp to my toy hauler and want to have consistant power to the amp. [ CHRISTOPHER S  Jul 11, 2016 ]
A
It had the most farads. [ Chris  May 29, 2016 ]
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It was suggested due to the type of amp that I purchased and to protect the vehicle. [ Lanell  May 06, 2016 ]
A
Capacitor helps keep my voltage at a constant 12V+ throughout power distribution [ Gerardo  Mar 21, 2016 ]
A
Power supply needed for my mustang system [ BRENDA NADINE  Mar 20, 2016 ]
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Necessary for power to always be provided to the subs without drawing from the car unnecessarily [ Matt  Mar 11, 2016 ]
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Great price, don't want head lights to dim anymore. [ Ryan  Mar 11, 2016 ]
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Good reviews [ Devin  Mar 09, 2016 ]
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Little extra peace of mind knowing I'm not over stressing my electrical system in my truck [ Chad  Mar 03, 2016 ]
A
friend has the cheaper option by this company, and he doesn't like the terminals. so I went with this one. [ benjamin  Mar 03, 2016 ]
A
Trying to keep my light from flashing when my radio runs. I had a company professionally install a extra battery. It got better but didn't solve my issues. Hoping this does the trick. So far I have had great luck with Crutchfield and there reviews. Thank You. They have Great service also. [ Richard  Feb 28, 2016 ]
A
because i need it [ Anita  Jan 23, 2016 ]
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Brand and would accommodate my needs [ Donald  Dec 03, 2015 ]
SHOW MORESHOW LESS

17 questions already asked

Q
The resistor bulb was broken when I received it, what size resistor is it?
[ Mike  Aug 29, 2018 ]
2 answers
A
I'm sorry to hear that! Unfortunately that info is not provided in the owner's manual. However if purchased from Crutchfield, we can exchange the capacitor for you up to 60-days from your purchase--you can contact our Customer Support at 800.955.9091 to set that up. Otherwise you may want to contact the retailer you purchased from, or T-Spec directly for more assistance.
[ Larry  Sep 06, 2018 ]  Staff
A
Idk what the ohmage is but it's whatever a cabin light is. If you have a spare cabin light you could just use that as well.
[ Brandon  Sep 05, 2018 ]
Q
I have 2 12 in Pioneer premiere and a 5500 watt power acustik amp and I keep blowing fuses in my capacitor it was a cheap capacitor 60 amp should I get another capacitor or use circuit breaker??
[ Brian  Apr 23, 2018 ]
2 answers
A
sounds like a power draw issue... remake all your connections, double check you don't have anything crossed or shorting out, and make sure you have a good solid and close grounding point... my ground coming off my cap is less than 2 feet... if you're still blowing your fuse, it may be a defective cap, and need replacement.. follow discharge/ charge instructions before servicing cap
[ matthew christo  May 03, 2018 ]
A
Man, those are some nice subs! It definitely should be your capacitor since its 60 amps. If you got those things on full blast and their rated for 1000 watt RMS then they're trying to use 167 amps. So I would recommend finding something with a 175-200amp fuse. Best of luck!
[ Brandon  May 02, 2018 ]
Q
I bought this capacitor a few months ago but haven't installed it yet because I just barely found a high output alternator replacement. My problem and question involves the amp power cable though. I got a Kicker CXA 1800W mono amp and 1/0 gauge power cable, but the cable looks slightly larger than this capacitor's ports. Has anyone else had issues with the fit or are my eyes deceiving me? If the fit's bad, where can I find the right reducer to make it work?
[ Saviors  Feb 20, 2018 ]
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can help troubleshoot and talk through solutions. 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.
[ Jeff  Mar 16, 2018 ]  Staff
Q
Does it have a built in resistor?
[ Jimmyjuicejuice  Dec 05, 2017 ]
2 answers
A
Brandon nailed it! This capacitor does not come with a built in resistor, but does come with on in the box to use for charging and discharging it. HTH! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=101
[ Paul  Dec 09, 2017 ]  Staff
A
No it does not. It comes with one for charging and discharging though.
[ Brandon  Dec 09, 2017 ]
Q
Will the help with alternator whine in the sound system. I've redone all the grounding and still no change?
[ Bryson  Oct 15, 2017 ]
3 answers
A
Bryson I purchased the T-spec capacitor because my head lights were dimming on songs with heavy bass. It works great, but I would not think this would device alone solve your issue. You said your grounds are good, how is your your amp mounted? I have twice had issues with alternator whine in the past,1. My amp was mounted directly to the back seat. When the amp chassis was grounded to the seat, i got the whine. Isloated it from the seat with a piece of wood and no more whine. 2. Was just a bad amp. Hope this helps, good luck. Charles
[ CHARLES  Oct 16, 2017 ]
A
Yes how much I can't say depending on the size you might need to size up I'm mean if your system is window busting power. If under that this should help a lot. Gl
[ johanna  Oct 15, 2017 ]
A
No it won't, check this article out. https://www.crutchfield.com/S-XA2d1i7Zpfm/learn/learningcenter/car/noise_suppressors_installation_guide.html
[ Andrew  Oct 15, 2017 ]
Q
can I use a 1/0-gauge amplifier wiring kit with this cap? I read that the terminals were 4 gauge. Will the inlets take 1/0-gauge, and if so can I do 1/0-gauge from battery to cap then 4 gauge cap to amp, and is that negating any use of the 1/0-gauge?
[ Brian  Aug 09, 2017 ]
1 answer
A
Hey there, yes you can use this capacitor with 1/0 gauge wire there are 4 gauge adaptors in the capacitor itself simply take those out and you are good to go. Whenever wiring an amp set it is always recomended to use same size wire through out especially when you are doing the power and ground set up use all 1/0 to amp and cap, and cap to battery less you want a fire.
[ Steven  Aug 13, 2017 ]
Q
If two capacitors have the same resistance, capacitance, & voltage rating does anything else matter electrically? I know the more expensive ones will have instructions and tools for audio/auto-specific uses. My question is: I understand electronics and how to install the capacitor and most capacitors can be bought for a price under $100. However, Crutchfield sells $100 capacitors. After the installation, all things held constant, will the price matter?
[ Danny Sebahar  May 04, 2017 ]
3 answers
A
Yes, price matter, qurstion how much farad do you need? are you over 6 fared for your component? that's why you need multiple capacitor? Hosnestly there is more fared you can get i single capacitor now and price less expensive .. you can check Boss brand and they do carry up to 10 Farad ( single Capacitor ) and price less than $60.00 i using Boss capacitor right now ( downgraded to 1 farad
[ CONRAD B  May 05, 2017 ]
A
Higher cost one use better quality in most cases but both should work the same if both have same spec. U should check the reviews on them before choosing.
[ damen  May 05, 2017 ]
A
Your right these are quality. 2 should do it if your running a hard system. Thanks
[ johanna  May 05, 2017 ]
Q
Will this help with dimming? Want to use it on a fosgate 500wx1 mono amp push two p1 10" fosgate.
[ Titus  Oct 09, 2016 ]
4 answers
A
It helps but I also had to upgrade my battery.
[ KATHERINE  Oct 10, 2016 ]
A
Yes, a power cap will help with lights dimming, I installed this in my truck to fix lights dimming.
[ Nicholas  Oct 10, 2016 ]
A
no it does not help. although it does make bass hits more crisp, you should upgrade your alternator
[ carol  Oct 10, 2016 ]
A
It definitely shouldn't have your lights dimming. I have a jl 1000 mono amp with 2 12"high class kicker subs... And my lights barely dim at all. Definitely a great capacitor!
[ Dedrick  Oct 10, 2016 ]
Q
Can this be used on a 24v system? (trucks, some tractors for instance)
[ Roy  Jan 02, 2016 ]
1 answer
A
No, this capacitor is designed for a 12v system. A 24v system would overload it and cause some serious consequences. Ex. The capacitor could cause a fire or possibly even explode.
[ christopher j.  Jan 04, 2016 ]
Q
Does it have a remote wire? The led reading stays off for most of the time. It turns on for a few minutes with engine off and on. Maybe it stays off because my amps dont drain it? My two amps equal 1000w, I got connected to this amp.
[ Leo  Dec 07, 2015 ]
2 answers
A
No it doesn't. It turns on when ever battery voltage and capacitor voltage differ as far as i know. Mine is always on when radio on. When radio turns off stays on for alittle bit then turns off
[ Juan  Dec 08, 2015 ]
A
No remote wire. Yeah mine does the same thing with the engine it turns on when it gets a big draw from your amplifier. It a good cap
[ steven  Dec 07, 2015 ]
Q
I have two amps totaling 800w. Can i install these to a single cap? I have Alpines: 4-ch 300-40A and mono 500w-60A. Too much of a cap a bad thing? I want this one mainly for its distribution block type connectors.
[ Leo  Oct 17, 2015 ]
3 answers
A
Probably it's fine, I'm sure there's specifications somewhere if you want to make sure. I used it with a single Alpine PDX-V9, which is a 4X100W + 500W sub amplifier.
[ Troy  Oct 20, 2015 ]
A
you can never have to much cap I have two amps one 1100 alpine and a 1200w kicker and 2 12" alpines and the cap worked perfect
[ THOMAS  Oct 18, 2015 ]
A
I Don't see why not.. no the bigger the cap the better.. it will help your car run as well because it draws energy from there first then you're battery
[ NATHAN J  Oct 18, 2015 ]
Q
I have a Rockford fosgate 1200 watt amp and 2 12' punch p3s. Will this help me with the dimming?
[ aebriel  Aug 30, 2015 ]
6 answers
A
Probably will help. But it's not a substitute for a high-output alternator
[ Troy  Sep 05, 2015 ]
A
Alpine 1,100 watt amp with one kicker L7 with the tspec 3.0 cap. Took care of the dimming on my car. So it should be more then what i need and more is better you know what i mean. So yes it will help you with the dimming.
[ GARY C  Sep 01, 2015 ]
A
IT will help but if your dimming is bad it won't fix it... just make it a little better.
[ NATHAN J  Aug 31, 2015 ]
A
It helped on the dimming of my JK. Didn't completely go away but helped
[ CURTIS  Aug 31, 2015 ]
A
I too bought this to try and help with the headlight dimming and it did not work. I also bought a optima yellow top battery to try and help but that to didn't work. In order to prevent dimming, you must upgrade your alternator, battery and power grounds.
[ PAUL ROGER  Aug 31, 2015 ]
A
Yes, this capacitor will be more than enough for that size amplifier. It is rated to handle up to a 3000 watt amplifier or combination of amps adding up to 3000 watts. I have mine wired in parallel to another capacitor to handle my 3600 watt amp and it does a great job.
[ Ray Albert  Aug 31, 2015 ]
Q
Do you have to leave hooked to a battery all the time ??putting in a boat with a battery switch
[ boatdr  Jun 10, 2015 ]
5 answers
A
yes or you will have to recharge it
[ FRANKLIN  Jun 11, 2015 ]
A
you do not have to have it connected all of the time. Putting a cut off switch is perfectly fine. When the capacitor detects a change in battery level, it will automatically activate and fill itself with stored energy. Switching the unit off will not hurt it at all.
[ Ray Albert  Jun 10, 2015 ]
A
You would need to charge the capacitor before you install it. Mine is constantly getting power from the car battery, I believe there's an automatic shut off. This is deffentlly and auto electronic and not sure how it would work with your marine application.
[ PAUL ROGER  Jun 10, 2015 ]
A
I leave mine hooked to the battery at all times but you don't have to.. I just know that if it's for a long time you'll need to discharge it. I'd ask the manufacturer to be sure.
[ NATHAN J  Jun 10, 2015 ]
A
Yes, mine is hooked to the battery but cuts off with the ignition after about a min.
[ Berdale  Jun 10, 2015 ]
Q
can you wire 2 amps to one capacitor, if so how?
[ John  Apr 29, 2015 ]
5 answers
A
You can if you like i would wire a 4 or 0/1 wire from the battery to a fuse in the engine bay then to the capacitor positive terminal. Then two wire from the capacitor positive terminal one for each amp. Ground the amps and capacitor with their own ground wire to the cars bare metal surface. the closer the capacitor is connected to the amp the better also the shorter length of ground wire the better hope this was help full.
[ KERTTON  Apr 30, 2015 ]
A
not recommended
[ FRANKLIN  Apr 30, 2015 ]
A
I do believe u can,i wouldnt go with too big of amps on 1 cap.i am gonna have 2 on mine but a 400watt and a 500watt only.not sure if i would hook 2 1000 watt amps to it...its hard to explain in words how to wire your application,but i am just gonna jump cont.power,power(red),and ground(black) amp to amp
[ JERRY  Apr 30, 2015 ]
A
you can, just make sure the capacitor is evenly matched for the two combined amps. Wire to the first amp then put an extra set of cables on the capacitor and run those two to the other amp power inputs. Each side of the cap will resemble a y shape. From the battery is the leg of the y. Two tips of the y to each amp. The capacitor would be the intersection of the y shape. Hope that helps
[ Ray Albert  Apr 30, 2015 ]
A
Well if you already have the two amps wired all you need to do is splice in the cap before where the wire splits for the two amps. Year it's possible but you'll need a splitter if you don't have one already.
[ NATHAN J  Apr 30, 2015 ]
Q
can you use 12 volts?
[ Doug  Nov 30, 2014 ]
8 answers
A
yes It is for standard 12 volt systems
[ DONALD G  Dec 03, 2014 ]
A
This is a 12 volt capacitor. the display shows voltage in battery and with engine running will show @13.5 to 14 due to the alternator.
[ Ira  Dec 02, 2014 ]
A
Yes you have to use the resister supplied to do the first charge and then leave hooked up to a 12 volt batt
[ FRANKLIN  Dec 01, 2014 ]
A
I waas just wondering because I thought some systems run using 14volts.
[ Doug  Dec 01, 2014 ]
A
12 volts as in battery power?
[ George  Dec 01, 2014 ]
A
Yes - This capacitor works fine at 12v. It appears to perform well over the range of 11.5v to 14.8v, which covers operating from battery power (car turned off) as well as from regulated alternator power (car running).
[ Anthony  Dec 01, 2014 ]
A
Yes it's meant for 12 volt systems. The capacitor stores energy for when your amp needs more punch, and your alternator just can't stand up to your amp's request.
[ Ray Albert  Dec 01, 2014 ]
A
It is for a 12 volt system. When your vehicle is running you should see between 10-14 volts on the capacitor.
[ MICHAEL  Dec 01, 2014 ]
Q
What are the dimensions of this cap H×W×D?
[ andrew  Jun 04, 2014 ]
1 answer
A
It's approximately 3.5 inches diameter (it's cylindrical), and close to 12 inches long. I'm not close to my vehicle right now but I think these are very close approximate dimensions.
[ Ray Albert  Jun 05, 2014 ]
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