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Boss CAP3.5S (SILVER)

3.5 Farad Digital Capacitor (CAP35S)

3.7

(7 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.
  • 3.5 Farad Digital Capacitor
  • Color: SILVER
  • Digital voltage level display
  • Chrome finish terminals
  • Includes mounting brackets
  • 20V DC
  • 24V Surge
  • Dimensions (without mounting brackets): 11"L x 4"W x 4"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Product History:
Boss CAP3.5S (SILVER) thumbnail
(newest, current model)
Boss CAP32C thumbnail
(previous model, replaced by Boss CAP3.5S (SILVER))
Capacitor Specifications
Capacitance (farads)3.5 farads
LCD Meter DisplayYes
Maximum Input Gauge SizeAny Gauge with use of Ring Terminal AWG
Maximum Output Gauge SizeAny Gauge with use of Ring Terminal AWG
Built-In Distribution BlockNo
Primary ColorSilver
Secondary ColorN/A
IlluminationRed
Width4"
Height4"
Depth11"
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Boss CAP3.5S (SILVER)
Average Customer Rating is 3.7 out of 5 stars:
3.7
based on 7 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
29%
4 star:
.
.
29%
3 star:
.
.
29%
2 star:
.
.
14%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
3.7
Value
3.7
Features
3.6
Design
4.6
Usability
4.4
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
May 7, 2012 Good product
Review by
JG from Colorado
Overall
Durability
Value
Features
Design
Usability
The boss cap was a great buy and I recommend it. I have had it for 6 months now and so far it has functioned great. This cap did not take any dimming away which disappointed me there but I found out it could possibly be my alternator, but I don't think it's exactly that. I did notice it gives your subs more power/bass which is phenomenal.
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April 21, 2012 Excellent product
Review by
Nalda from East Orange, NJ
Overall
Durability
Value
Features
Design
Usability
I am extremely satisfied with this product. Both the installing technician and other technicians are going gaga about it. Everyone wants to know where did I get it. I would not hesitate to recommend it to anyone.
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January 2, 2012 it alright
Review by
whatever from place
Overall
Durability
Value
Features
Design
Usability
My 1 farad cap does better than this but its still okay.
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October 18, 2011 great capacitor
Review by
TK from Apple Valley, CA
Overall
Durability
Value
Features
Design
Usability
I'd reccomend this because it stiffens your bass hits and is quite affordable for being a 3.5 farad.
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April 17, 2011 Good for the price
Review by
Alon from Columbus, OH
Overall
Durability
Value
Features
Design
Usability
Okay first a background on what I use and what is the sound system. I have a Jeep Liberty 2003 sport 3.7L w/ 4WD and I ripped out my stock system entirely (except for in-dash tweeters as the tweeters are good quality). My system is a Kenwood 8105D 1000 watt amp powered with 8 gauge wire, and 2 12" Kenwood subs connected with 10 gauge wire. The capacitor kept gauges and lights from dimming, however seemed even 3.5 farads was not good enough as I listen to bass heavy techno and hip hop and a lot has constant bass. So after a couple minutes at Max or 90% volume, the cap would be drained and cut out to recharge. But that might be more my music selection. It does make the signal cleaner however and more responsive. However I decided to buy the Boss 10 farad capacitor to get more capacitance for my needs and will give this to my buddy who helped me install my system as he only has 2 x 200 watt rockford almost 20 year old amps and 2 10" kicker competition subs that are also almost 20 years old... They were his dads while he was in the USAF and he had them still sealed and never used. So I would recommend this to people with not too powerful systems if you are like me and like songs with constant bass hits like techno commonly does or some hip-hop/rap
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View All 7 Reviews for Boss CAP3.5S (SILVER)
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
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 CAP3.5SBoss CAP3.5S (SILVER)$43.99
Related products
Boss CAP3.5B (BLACK w/ BLUE)
3.5 Farad Digital Capacitor • Digital voltage level display • Chrome finish terminals • Includes mounting brackets • 20V DC • 24V Surge
Boss CAP3.5R (RED)
3.5 Farad Digital Capacitor • Digital voltage level display • Chrome finish terminals • Includes mounting brackets • 20V DC • 24V Surge

Product Summary

Manufacturer: Boss
Model number: CAP3.5S
UPC: 791489108904
Weight: 6.00 lbs
Internal SKU: cap3-5s
Internal product ID: 13128

Price Information

$99.99

–$56.00

$43.99

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This company is fantastic! Their integrity is fantastic as well. Luis D was my point of contact and he gave me excellent service. One of the best experiences ever from a company. Thanks so much!

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