Customer Ratings & Reviews

Excellent Product. Excellent Price.

I have had this capacitor for 6 months and its functioning perfectly. Absolutely no problems. My headlights don't dim with the bass anymore.

Unless I'm bumping my beats loud enough to bother the whole country of china.

Bigger than expected

in the pics it looks like about the size of a soda bottle or something and thats how long it says it is, but it is massive for a cap. it is more the size of between a 2 liter and 1 litre bottle of soda, but it gets the jobe done and does it well. it powers my 4000 watt power acoustik amp and powers it well. my dash lights and headlights never go dim. they always stay constant even while im bringin the juice.

Boss Cap4c is pretty decent!

Bought this cap and im running 3800 watts and i still have some light dims but nothing major if your gonna be running like 2200 watts RMS or less i think it can most defiantly do the job i still would recommend a dry cell but over all great buy for the cash!!!

looks good

great product and all, but on mines my display screen for me to read the voltage didnt work at all so i dont have a clue how much power is going through.....!!!!!!

boss cap4c is a good buy

This cap is pretty big and does great with my 3k amp no more lights dim.

Easy to hook up.

good cap

This was a really good cap i had no problems with it at all. Charged it right up and had it running and helping my lights not to dim since i was running so much power! Good buy!

satisfactory

Good pruduct for the money.
I have a 1000wt momo block D amp with 500rms on 2 1000wt 250rms subs and a 600t 4 channel amp on my mids.
Lights don't dim any more unless I try to max it out, but I grounded my altenator better and it solved it.

boss cap4c great value

its a great product.... its good for a small sound system you can get power from it........for me i thought i was a great for the price.......

Great price and value

came nice and sealed also shipping was fast, also good quality product definitely will recommend

Great product

I got this capacitor for christmas and have it running two rockford fosgate p3d2 2ohm subs and I love it. The light behind the digits is bright, but kind of adds to it. I have actually got several compliments on the way it looks as well.

Pretty nice product

It's built very solid and does its job like a champ. I enjoy many of Boss's products and this is one of the most valuable products you can install in your car.

Its a bomb

At first it was working fine then i notice my lights started dimming after about 2 months. This Cap actually blew up like a bomb in my Jeep and my car wasnt even turned on. I wouldnt recommend this product.

Get's the job done.

I have a 3500 watt RMS system and this Cap handles the power draw with ease. I've notice substantially less dimming from my head lights and more powerful sub-woofers hits.

GREAT

THIS CAP WAS WORTH IT AND TOOK IN SOME WORK.......... it helped keep my 15's banging

HUGE!

This Cap rocks! my lights never dim now and it makes everything sound so much cleaner. but this Cap is HUGE! its almost the size of a 2 liter of soda. buts its an awsome deal and works amazing. Thanks Boss Audio and THANK YOU SONIC!

great cap for the price

nice cap works well did not stop lights from dimming but did help a lot would recommend to a friend

living loud no kickers

4th item from sonic i have it on a skar vvx 12 was making my brights be dims and my dims look like a flash light hooked it up with 4 guage never drops below 12 v and im pushing 1000rms thourly satasfied everyone talks crap about boss went over kill and 5* came with mounting brackets and a diode very simple design yet works 5* also have it hooked up to my ignition wire works every time!!!! also it beeps when its 2 stressed big plus!!!! 5* in all points

BOSS CAP4C

The CAP4C is a very versatile capacitor. It took me several weeks to read and compare the Capacitor with almost every capacitor on the website. When I decided to buy the product. I have no regrets. My Bass is clear, thumpin and my headlights no longer fluctuates. (it has been my problem before I bought the Capacitor. ) My Mids are clearer and it enhanced the over all Sound quality. The best thing about the capacitor, I don't have top worry about the battery drain. Very Easy to install and easy to monitor with digital reading. This is one of the best Items I bought from Sonic, affordable and for purchases on line no problem even if I live here in Davao City, Philippines. Mabuhay Sonic Electronix!

Great Product

This product Does NUMBERS!!!! No Dimming Clear Bass And for a Very Low Price.

By Garry on April 27, 2015 Verified purchase