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Boss CAP8

8 Farad Digital Hybrid Capacitor with Blue Illumination

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List price $159.99

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$59.99

with warranty

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Order within 30 hrs 38 mins to ship 12/22

Arrives by Friday, Dec. 26 to zip 07095

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  • 8 Farad Digital Hybrid Capacitor with Blue Illumination
  • 3-Digit, super bright LED voltage meter
  • Voltage measure accurate to +/- 0.1VDC
  • Blue illuminated window with light following played music
  • Automatic sleep status when volume is low or there is no voltage variation present
  • Warning tones for reverse polarity connection, over voltage (>17VDC), or low battery voltage (<10VDC)
  • Working voltage: 16VDC
  • Surge voltage: 20VDC
  • ESR (Equivalent Series Resistance): 0.015 ohm @ 120Hz, 25C
  • Capacitance tolerance: +/- 10%
  • Dimensions: 9-1/8"L x 5-1/2"W x 2-1/2"H
  • 1-year Manufacturer's warranty

Capacitor Specifications

Capacitance (farads)
Capacitors are rated in farads, and at times microfarads or millionths of a farad. The more farads the capacitor is rated at, the more electrical charge (and wattage) the capacitor will hold. Capacitance is defined as the property of storing an electrical charge between two separate conductors.
8 farads
LCD Meter Display
Displays the current voltage and/or other specification on an LCD readout.
Yes
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
Any Gauge with use of Ring Terminal AWG
Maximum Output Gauge Size
This number refers to the maximum size of wire that will fit into the output connector(s) of the capacitor, battery terminal, or any other connector with an wire output.
Any Gauge with use of Ring Terminal AWG
Built-In Distribution Block
A built-in distribution block simply means that the item includes a distribution block. The built-in distribution block will split the single power input into a multiple power output.
No
Primary Color
This is the main color of the item.
Chrome
Secondary Color
A color that compliments the main color of the product.
Black
Illumination
This is the color of the illuminated LED lights on the unit.
Blue
Width
The width of the item from left to right (side-to-side) measured in inches.
5-1/2"
Height
The height of the item, measured from top to bottom, in inches.
2-1/2"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
9-1/8"

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
45%
4 Star
45%
3 Star
5%
2 Star
0%
1 Star
5%

Average Attribution Rating

Durability
4.4
Value
4.5
Features
4.3
Design
5.0
Usability
4.6
Jared

Lumberton texas

Overall
Durability
Value
Features
Design
Usability
Great deal fast shipping

December 4, 2014

I love this product it looks and functions amazing it was great dealings

0 of 0 found this helpful

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Nelo

Brazil

Overall
Durability
Value
Features
Design
Usability
Good price, excelent performance!!!

June 10, 2014

Boss has the best cost/benefit in aidio performance!! The number one in audio!!!

0 of 0 found this helpful

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Derek

Augusta, ME

Overall
Durability
Value
Features
Design
Usability
Good Cap Great Price

September 30, 2013

This cap works great but I had to charge the cap longer than what it states in the manual. When I charged it for 60 seconds the cap had only reached 10 volts and lights dimmed. After discharging and recharging the cap up to 12 volts its been working great.

0 of 0 found this helpful

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Hutch

Jacksonville, NC

Overall
Durability
Value
Features
Design
Usability
Pretty damn good

September 19, 2013

The capacitor works great. Easy install, however the flashing blue strip at the top can be distracting if visible from the driver seat. That aside, very pleased.

0 of 0 found this helpful

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Zach

Farmington, CT

Overall
Durability
Value
Features
Design
Usability
do not buy

September 17, 2013

The pros of this cap are as follows: It looks pretty cool. Thats it in my opinion for any good thing about this cap. I bought it for a 1600 watt system. I hooked it up correctly and it would not charge properly. The feet on the cap are cheap plastic and got all scratched up. There was no discernible difference with the cap hooked up and before I had the cap (light dimming). Finally when I disconnected the cap and followed the dishargeing procedure it sparked and smoked. I went to my local audio shop and the owner said it was tell tale signs of a faulty cap straight from the factory. Spend a little more on a quality cap.

0 of 0 found this helpful

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Henry

New Orleans, LA

Overall
Durability
Value
Features
Design
Usability
works

September 9, 2013

this is a great cap took most of my diming away but I am running 2 lanzar 6000 of it so just a baby step

0 of 0 found this helpful

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Lindsay

Canada

Overall
Durability
Value
Features
Design
Usability
Product Review

March 6, 2013

I had a custom made box for for 2 10's made for my F-150 this cap looks awesome just peeking out from under my seat. Has a light rattle but nothing turning it up can't fix

0 of 0 found this helpful

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Vaughn

Canada

Overall
Durability
Value
Features
Design
Usability
Awesome

March 4, 2013

SO good for the price, The battery in my RSX is quite small, this supplement's it well reducing the load on my alternator. Passive mode is super neat. (Shuts off when not needed) Need's a chassis ground to work and remote turn on signal.

0 of 0 found this helpful

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Karamchand poonai

Canada

Overall
Durability
Value
Features
Design
Usability
Good value

January 15, 2013

The product was very good ,for the price it was worth it ,its actually the best product i used so far i been shopping online....so yes i would recomend it to anyone and to shop on this website...

0 of 0 found this helpful

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MIKE

Warwick, RI

Overall
Durability
Value
Features
Design
Usability
Works great

January 4, 2013

Cheap, good looking and keeps the power stable in my beat down 93 accord. No lights dimming, no alternator / battery fail so im very pleased with it.

0 of 0 found this helpful

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na8t

oxford OH

Overall
Durability
Value
Features
Design
Usability
it works

October 28, 2012

I have a punch 500x2 and a RF 300x4 on it and it keeps up with them

0 of 0 found this helpful

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Josh

haverhill, MA

Overall
Durability
Value
Features
Design
Usability
capacitor

May 14, 2012

Bought this cap a while back and it works perfectly. Whether or not it is actually capable of 8 farads who knows, but it is doing all the work I need it to. The blue backlighting is also a plus.

0 of 0 found this helpful

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Junior_Charger

Phoenix, AZ

Overall
Durability
Value
Features
Design
Usability
Good buy

March 5, 2012

I bought it because my sound system would dim my lights BAD. Once I put this in I didn't charge it all the way so it wasn't really helping, but as soon as I figured out why it wasn't performing how it was supposed to I discharged and recharged and now it's working great. The blue illumination is awesome.

0 of 0 found this helpful

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Tecknodude180

Wyoming, MN

Overall
Durability
Value
Features
Design
Usability
Great Buy!!!

June 5, 2011

Looks great. Lights up blue - I like the color. You can hook up many small lines to it or a couple big ones with o-ring connectors. Shuts off automatically and turns back on when voltage change occurs. It also has a digital voltage display. And a voltage adjustor. (Not sure in how that affects stereo performance yet though). The light on the front bounces to how much capacitance is being used- kinda cool

0 of 0 found this helpful

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Mike

CO

Overall
Durability
Value
Features
Design
Usability
NICE CAP!

January 16, 2011

I have this along with a SHURiKEN SK-BT20 and my system never drops lower then 13.5v. I'm pushing 1700w rms and my lights don't even twitch! Also the display on it is pretty cool lol it mimics an EQ. Nice product, I would recommend it to anyone.

0 of 0 found this helpful

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Phillip

Lubbock, TX

Overall
Durability
Value
Features
Design
Usability
Best ever

October 17, 2010

I've had a lot of different caps and so far this is the best 2000W/RMS 4500W/MAX this paired with sound stream power cell Voltage stays between 13.6 and 14.8 at max volume this is amazing. The only problem with charging was that I forgot that the resistors get really hot so all ways wear a glove or use pliers.

0 of 0 found this helpful

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Clarence

APO, AP

Overall
Durability
Value
Features
Design
Usability
Works well!!

January 18, 2010

1400rms and it keeps the volts above 11 at max level for my system. No lower price than at Sonicelectronix.

0 of 0 found this helpful

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Ryan

Blountsville, AL

Overall
Durability
Value
Features
Design
Usability
Nice

September 16, 2009

its very sleek. looks good. works well.... well worth the money.

0 of 0 found this helpful

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Stixx77

Northern Michigan

Overall
Durability
Value
Features
Design
Usability
Never a problem..very dependable

August 6, 2009

I personally havn't experienced any of these problems other ppl seem to be having, but as long as you read the directions, charging it shouldn't be a problem at all..
I will admit that my lights seem to flicker a touch when i am stoped, only when low notes hit though.
And as for people saying their lights dim a lot, thats probably because the lights you are looking at are LED's, which if that is the case are much more sensitive to voltage fluctuation, than a incondecent light..so that's just kinda hit or miss, depending on your car. =\

0 of 0 found this helpful

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Ray

Milford, IN

Overall
Durability
Value
Features
Design
Usability
Nice looking but...

May 19, 2009

I'm runing 1800 total amp power now so I bought this product to make sure I had enough CAP. When I got it, I removed the old one and put this one in according to the manual and all my light still dim when the bass hits. There was some trouble charging it.

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Accessory Tools and Products

Accessories added

Scosche Ring Terminal (1/0 AWG)

Pair of 1/0 AWG ring terminals with 3/8" hole and red and black insulating sleeves.

Your Price $3.99

Streetwires Ring Terminals (1/0 AWG)

Pair of 1/0 AWG set screw power ring terminals.

Your Price $17.95

NVX Precut Power/Ground Wire (1/0 AWG)

5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and gunmetal gray insulation.

Your Price $29.99

NVX XW0BL20

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire

Your Price $84.99

Directed DEI Resistors (15-Pack)

Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.

Your Price $1.99

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Browse 2 questions and 2 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
It matched the amount of wattage that im pushing with my multiple amps
Dominiqu R on Oct 31, 2014
What distribution blocks are needed or would fit this capcitor ?
Berto305mia on Oct 24, 2014
Best Answer: I didn't useany just wired it all together but if you were to use distribution blocks go with the ones that properly fit the gauge of the wire you are trying to use
Reply · Report · Vincent P on Oct 25, 2014
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

CAP8

UPC

791489108973

Weight

5.00lbs

Internal SKU

cap8

Internal Product ID

13316

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Boss CAP8