Expert Service 1-877-289-7664 [Hours]

Early Spring Deals

T-Spec V8-3DDC

Digital Capacitor 3.0 Farad Distribution Top

In Stock

List price $89.99

You Save: $20.00 (22.22%)


with warranty

+ FREE Shipping in US 48

Order within 16 hrs 46 mins to ship 4/2

Arrives by Monday, Apr. 6 to zip 20147

Add an Extended Warranty

SquareTrade Product Warranty
Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

In Stock

Arrives by Mon, Apr. 6

Get FAST answers from customers ASK a Question See questions answers

General Features:

  • V8 Series 3.0 Farad Digital Capacitor
  • Improves electrical system performance by providing a buffer between the alternator and amplifier
  • Distribution top for simple installation
  • Convenient, easy mounting system
  • Voltage meter to monitor electrical system performance
  • Impact resistant polycarbonate cover
  • Authorized Internet Dealer
  • 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.
3 farads
LCD Meter Display
Displays the current voltage and/or other specification on an LCD readout.
Primary Color
This is the main color of the item.

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Puyallup , Wa

you get what you pay for so choose wisely

November 30, 2014

Works as expected. T-Spec makes quality products.This cap is a perfect match to feed my Kicker 1200 watt mono block.

13 of 25 found this helpful

Was this review helpful to you?


Bentonville, AR

Works Great!

November 3, 2013

I bought the T-Spec V8 so that my light would not flicker anymore. Not only did it do the trick, but now the bass from the sub sounds even cleaner! It also looks pretty awesome. I would recommend it.

13 of 26 found this helpful

Was this review helpful to you?



Won't disappoint.

December 16, 2014

I have owned multiple brands of capacitors and this one has helped regulate my voltage much better than my old rockford and boss audio capacitors. It looks cool in the trunk and has helped my system a ton. The only downfall is that the voltage display tends to turn off for a minute here and there but then it comes back.

11 of 23 found this helpful

Was this review helpful to you?

Accessory Tools and Products

Accessories added

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


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

Browse 6 questions and 26 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Tubular and has built in distributor. Only one like it I could find anywhere
John H on Mar 6, 2015
patrick p on Dec 9, 2014
great features and looks good
roy m on Dec 25, 2014
Built in Distribution Block make for a clean install, good reviews, high capacitance at a reasonable price.
Bradley H on Nov 13, 2014
what is the maximum awg input for this unit?
A shopper on Mar 23, 2015
Best Answer: The capacitor features an impact-resistant polycarbonate distribution top with two 4 AWG positions on the positive (+) side and two 4 AWG positions on the negative (-) sideEnter an answer to this question.
Reply · Report · clayton g on Mar 25, 2015
· Add Answer · I Have This Question Too (0)
Wanting to get these with a 3.0 cap. I shouldnt have any electrical problems should I?
Austin f on Jan 22, 2015
T-Spec V8-3DDC
T-Spec V8-3DDC
Kenwood DRA1850.1D_KFC-W3013P_BAK42
Kenwood DRA1850.1D_KFC-W3013P_BAK42
Best Answer: Hello Austin,

Although you've gotten GREAT feedback, Please take the information you are receiving for what it is; Generalized opinions. Unless these individuals are part of your project, there is no absolute way of knowing for sure (100%) that you aren't going to 'have any electrical problems' . Yes, the setup is a great approach, but no one knows the condition of your vehicle Or the many components in it, how the install is going to be done, etc.. We are sure it will all work out great, but we want to make sure you plan accordingly, and understand that these are all opinions, great ones at that. =]
Reply · Report · Customer SStaff on Jan 24, 2015
· Add Answer · I Have This Question Too (0)
does it work with 12 volt?
douggggggggggg on Nov 30, 2014
Best Answer: It is designed to work in an automotive 12 volt negative ground electrical system
Reply · Report · clayton g on Nov 30, 2014
· Add Answer · I Have This Question Too (0)
where do the negative leads hook up to? both go to ground?
A shopper on Sep 27, 2014
Best Answer: Each major equipment gets its own separate ground.

I do not know why this terminal has 2 (-) ports.. you will only use 1 for ground.
Reply · Report · Robert S on Sep 27, 2014
· Add Answer · I Have This Question Too (0)
What are the overall dimensions of the product with mounting brackets installed on the cap?
Vidsavage on Aug 30, 2014
Best Answer: Thank you for the recent inquiry!

After researching this specific product, unfortunately we don't have the necessary information to assist you. Due to the limited information at our disposal, we're not in the position to provide you with the answer you're seeking. Therefore we invite you to contact the manufacturer directly for additional support. Since they have additional resources at their disposal, they're much better equipped to aid in your request.
Reply · Report · Customer SStaff on Sep 22, 2014
· Add Answer · I Have This Question Too (0)

Product Summary


Model Number






Internal SKU


Internal Product ID


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: T-Spec V8-3DDC

  • Metra T-Spec Amplifier Kits and Installation Accessories
  • How To Install A Car Audio Capacitor