Garage
Shop

Customer Ratings & Reviews


Boss CAP30 thumbnail image
View product page

5 star
70%
4 star
30%
3 star
0%
2 star
0%
1 star
0%



Durability
4.7
Value
5
Features
4.6
Design
4.8
Usability
5

Customer Reviews

Sort by:

Loading...

off brand but still good product

Yes, it is an off brand product. I've had mine for 6 months and had no problems or issues with it. The light bar seems to do nothing other then flicker depending on slight voltage variation it goes wild.

30 farads in the size of two standard single cylinder capacitors? Yes. Works just as expected. You may be better off with a secondary or third or fourth battery, but unless you have 14.7-15 volt batteries then your voltage will drop to 12 then stay there. This will get you up to a stable 14.7 and stay there quite well, even if you run a 3800+ Watt rms amp

Running with: Lanzar Vbp 281 4200wpeak about 3850 rms if I remember correctly

By Ryan on September 7, 2012

15 found this helpful


works great

It works great and looks good. The lights light up with the bass.

By R T on January 9, 2012

14 found this helpful


Great buy!

i have me this product an i must say it's worth it,holds power like a kid with candy not letting go.i strongly suggest buying this product if ur into power it holds all you will eva need.

By kirk on June 17, 2009

15 found this helpful


great product

this product works great. i have full 2ga wire run to it then to a db block and then to three 2000 watt amps which power 3 spl 12s and it works great. it barely drops down to 11 volts when the bass hits really hard even with all that stuff. I love how the lights on it pulses with the music. I don't like how the screw holes where you can mount it are made of plastic cause they will break easy if you mount it too tight.

By moondogg on April 5, 2010

13 found this helpful


Power that you need

Bought this for a 2100 watt RMS mono block power hungry AMP. This cap has not let me down in 7 months.

By Ravendragon on August 9, 2012

11 found this helpful


Excellent merchandise

Excellent merchandise, I had the Boss CAP30 for a little bit now. It works great. When I first installed the Boss CAP30, I could tell a major difference in my system. The bass sounded different, and I didn't have a loss of power. Plus I purchased it at a great price. I love the Boss CAP30 and will be getting another one.

By WildBill on August 18, 2011

11 found this helpful


Great service and product

Easy to install, sounds great, easy to listen to~ Good return policy along with service.

By Kat on June 25, 2012

10 found this helpful


Great way to power your system!

I bought this because I run two batteries in the rear of my vehicle and wanted to lessen the stress on my batteries. Plus I run a High watt comp. amp with a single 15, so I need the extra juice for long bass hits. Over all great piece of hardware, just make sure your car or truck can handle the extra stress on its alternator.

By Michael on August 8, 2013

10 found this helpful


Great Value

Quick delivery, easy to install, and does the job. I would definitely recommend. I have 2 Pioneer Premiers 12s, Rockford Fosgate Power bd1500.1

By Ahkeel on September 5, 2014

9 found this helpful


By Tim on December 11, 2023 Checkmark Icon Verified purchase


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2013 MINI Cooper

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.