Customer Ratings & Reviews

The beast capacitor BELVA

Rzr2023 200 we added a capacitor to the sound system. We have all this connected to it, and it stays playing music a good three hours stuff we put to it
4 Belva 6.5
2 whips 6ft
1 back amber light row
1 spot flood light bar
2 spot light rear view mirror
1 4ch amp
1 radio head unit
And works perfectly fine. Holds a great charge to keep all this running without the razor running for hours

By Eric on January 15, 2023 Verified purchase

Works great

My issue was the strain my amp and subs would put on my battery, no more drainage issues, speakers still sound great, car runs perfect

By Jaree on February 17, 2020 Verified purchase

Good Cap

This is a good cap. The issues I had was the resistor did not light up when charging. To charge this cap, put the resiston up for 10 seconds or so. Once charged, when you go to finish the install the cap should be in the 12 volt range. I bought this to replace a 500k scosche cap. That cap ways way too small and point less being that I have a 2000 watt belva monoblock. This amp work really nice. It goes great with the belve amp. For 40 bucks, you will not be unpleased with the purchase.

Must Have

This is keeping the power flowing. Preventing that drain that comes from running 2 amps.

By ClNShvN on January 16, 2020 Verified purchase

Great CAP for the money

I would highly recommend this CAP and the BOSS 1100 Watt combo. I have it hooked up in my F150 with driving (2) Kicker 12" COMP Subs. The amp combined with the 2 Mf Cap makes these subs rock. The Bass is clear and solid with virtually no distortion. My daughter liked it so much that she asked me to install one in her GMC Serria. I am about to purchase a third to install for a guy at work.
Would I recommend this amp to a friend?....Hell yes without a second thought.

By Steve on January 5, 2020 Verified purchase

Great Product

The product works great! I am very satisfied with the performance of the capacitor.

the product i need when i need it .got it so when needed i will have it .

it do the job my light are a lot brighter in side and out it works for me all my cars have one .

Good Price

Purchased so my lights wouldn't dime while riding around bass'n they still do but just a little and it definitely improved the sound.

By Jay on October 6, 2017 Verified purchase

Great value

The value,quality and durability of all the products Sonic Electronix offer sale themselves.

Great value

Easy installation, great quality, and does what its supposed to do!

By Mouaying on May 29, 2020 Verified purchase

Belva BB2D

Best buy you can find online. It's a very good product.

Belva BB2D

Great prices on great equipment and Fast delivery thanx sonic

By Anonymous on March 6, 2019 Verified purchase

get it!

it looks really nice, and so far it is doing what it needs to do. no complaints as of yet & everything seems to be perfect.

Belva bb2d

Like a good one to I wood bye it again

Great budget cap to reduce headlight dimming!

I have had this model of capacitor in my car for about 7 years now, with zero issues. This helped the headlight dimming in my Toyota Corolla alot, though it did not totally eliminate the issue. That's not the capacitor's fault: my system includes two amps (subwoofer and 4-channel for the speakers) with a total RMS output of 900 watts, and I'm still running the stock 80 amp alternator. Even with 0 gauge cable for the "Big Three" upgrade, I'm fully aware that the charging system is being pushed to its limits when I have the sound cranked.
However, this capacitor is an excellent value for the money, reducing my headlight dimming for only $35... alot cheaper than spending $300 or $400 on high output alternator. Again, I've been running my current system for nearly 7 years now and have had zero problems with the capacitor, the car or any of my audio equipment. As a final note, this cap is pretty small in size, so its easy to tuck away somewhere. I stuck mine under the driver's seat, right next to my sub's amp (pic attached).

By Justin on December 7, 2022 Verified purchase

Great value!

Sonic Eletronix always has good prices and also shipping is free as well fast.

By Anonymous on October 30, 2019 Verified purchase

its ok.

thought would be decent for the price.. then when I actually had the time to hook it up...half of the LCDs on the LED display doesn't work.....imagine that.... hince why the price is the price.

By Doug on November 27, 2015 Verified purchase

Great

It sounds great. I had it installed and it seems to be working perfectly with the items it came with.

By Anonymous on May 5, 2019 Verified purchase

It's okay for the price

My headlights don't go down anymore with the capacitor. I didn't need to buy another battery

Regretting the purchase

Cheaply made product. Looks nice in the photo but once in hand you can that it just cheaply made . It also leaves the terminals exposed .

By Lance on December 12, 2021 Verified purchase

Good cap

I bought this cap to go along with my 2 AGM batteries and it definitely helps to stabilize the voltage during long peaks.i tried with and without the cap and like I said it did make a difference don't listen to people that say they don't work.

By Steve on October 21, 2017 Verified purchase

Decent

It's actual capacitance is probably not anywhere close to 2 farad but eh, it looks good and works as a distro block. Be wary of the allen bolts on top, they are nowhere near 5/16 so a normal ring terminal will be sloppy fitting on top.

By Brandon on April 15, 2016 Verified purchase

Great capacitor

It’s a great capacitor and has never failed. Easy installation.

By Anonymous on September 24, 2018 Verified purchase

Worth Every Penny!

The product works great!!
I can feel my subs and power is A lot more stable… Sounds more solid!

Not really sure if the display turns off after a while and comes back on when needed. Great Purchase!!!

By Donnie on September 14, 2022 Verified purchase

Believe the hype

So yes I was the typical person with diming lights when the subs would hit in short burst. I was not going to buy a big alternator and another Batt. I got this and installed it and Soo much better. I can still make em dim but the amp is rated for true 1200 RMS watts so I should got a bigger one. I will say this is alot bigger than I thought I would be. The charging method works but takes longer that you think. make sure you have ring terminals and ground wire and a ground spot. Yes the lcd turns on some times randomly and some times its not on while the sub is on.

By Les on January 1, 2022 Verified purchase

kept my headlights from dimming when radio is turned up works as advertised

By RICK on October 29, 2024 Verified purchase

Must have.

Had this installed. Definitely makes a difference. Would recommend.

By Matt on June 27, 2024 Verified purchase

Bang for the buck!

I have this amp wired at 1ohm in 2 Skar 12” 1500w rms each. Amp doesn’t heat up that much and the sound quality is definitely car rattling!

Solid Product

I think this is a great product especially for the price. It does what it's supposed to and it does it well.

By Ryan on February 10, 2026 Verified purchase