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Boss CAP4C

Chrome 4.0 Farad Digital Capacitor

4.3

(10 reviews)

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When heavy bass notes in your music hit, the current demand on your system greatly increases and could cause voltage drops. This stiffening capacitor acts as a power reservoir, instantaneously supplying added power to keep your system playing strong.
  • Chrome 4.0 Farad Digital Capacitor
  • Digital voltage level display
  • 20V DC
  • 24V Surge
  • Chrome finish terminals
  • Includes mounting brackets
  • Dimensions (without mounting brackets): 11"L x 3-1/2"W x 3-1/2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Capacitor Specifications
Capacitance (farads)4 farads
LCD Meter DisplayYes
Maximum Input Gauge SizeAny Gauge with use of Ring Terminal
Maximum Output Gauge SizeAny Gauge with use of Ring Terminal AWG
Built-In Distribution BlockNo
Primary ColorChrome
Secondary ColorN/A
IlluminationN/A
Width3-1/2"
Height3-1/2"
DepthN/A
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Boss CAP4C
Average Customer Rating is 4.3 out of 5 stars:
4.3
based on 10 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
70%
4 star:
.
.
10%
3 star:
.
.
10%
2 star:
.
0%
1 star:
.
.
10%
what's this?
Average Attributes Rating:
Durability
4.2
Value
4.5
Features
3.8
Design
4.5
Usability
4.4
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
September 13, 2011 Its a bomb
Review by
Ronald from Carthage, NC
Overall
Durability
Value
Features
Design
Usability
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.
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June 23, 2011 Get's the job done.
Review by
Braxton from Las Vegas, NV
Overall
Durability
Value
Features
Design
Usability
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.
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April 22, 2011 boss cap4c is a good buy
Review by
chris from tucson, AZ
Overall
Durability
Value
Features
Design
Usability
This cap is pretty big and does great with my 3k amp no more lights dim.

Easy to hook up.
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April 15, 2011 looks good
Review by
Marcus from Orangeburg, SC
Overall
Durability
Value
Features
Design
Usability
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.....!!!!!!
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March 17, 2011 BOSS CAP4C
Review by
Jon-Jon from Davao City, Philippines, Philippines
Overall
Durability
Value
Features
Design
Usability
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!
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View All 10 Reviews for Boss CAP4C
Ring Terminals
Use these ring terminals to connect the power and ground cable to the capacitor. The more surface area the ring terminal has to the capacitor's terminal, the better the connection will be.
 ProductPriceAdd?
Scosche Ring Terminal (1/0 AWG)Scosche Ring Terminal (1/0 AWG)
Pair of 1/0 AWG ring terminals with 3/8" hole and red and black insulating sleeves.
$2.99
Streetwires Ring Terminals (1/0 AWG)Streetwires Ring Terminals (1/0 AWG)
Pair of 1/0 AWG set screw power ring terminals.
$16.99
Monster Cable Ring Terminal (1/0 AWG)Monster Cable Ring Terminal (1/0 AWG)
Monster 400 Series 1/0 AWG crimpless ring terminals with PowerQuip technology.
$26.00
Power / Ground Cable
Depending on your capacitor installation, you might need some extra power or ground cable. The gauge of this cable should match the gauge of your amplifier's power and ground cable.
 ProductPriceAdd?
Kicker Precut Power/Ground Wire (1/0 AWG)Kicker Precut Power/Ground Wire (1/0 AWG)
5 ft. of Kicker's HyperFlex power/ground cable with high-current transfer and gunmetal gray insulation.
$29.99
Xscorpion PRE-FP050R-RED-20FTXscorpion PRE-FP050R-RED-20FT
20 Ft Pre-Cut Piece of 1/0 Gauge Flat Power/Ground Cable
$79.99
Resistors
Before a capacitor is connected directly to the 12V source, it must be charged. Using one of these resistors will allow you to safely charge your capacitor.
 ProductPriceAdd?
Directed DEI Resistors (15-Pack)Directed DEI Resistors (15-Pack)
Pack of resistors with various values (ohms) perfect for the initial charge of your capacitor.
$1.99
Main Product
 ProductPriceAdd?
Boss CAP4CBoss CAP4C$49.99

Product Summary

Manufacturer: Boss
Model number: CAP4C
UPC: 791489108935
Weight: 7.00 lbs
Internal SKU: cap4c
Internal product ID: 13318

Price Information

$119.99

–$70.00

$49.99

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I have to say that dealing with Samantha in order confirmations was a real pleasure. She got my problem resolved in a timely manner. In addition, due to the nature of my job...it's easier for me to write than call. :) She made it easy for me. Thanks again for the great customer service.

- Jeremy from Ft. Lauderdale

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