T-Spec Capacitor

1.5-farad capacitor with red LCD meter

Item #: 12015DDC

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15 Reviews

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Smooths out the bass

T-Spec's 1.5-farad capacitor will help your vehicle's charging system keep up with your high-powered sound setup. When the power of the bass threatens to overwhelm the electrical system, this cap quickly provides a jolt of stored power to keep the beat pounding and your headlights from dimming. And it recharges quickly, so it's always ready for the next hit.

Displays the voltage

A bright, digital meter displays your system's voltage, so you can monitor how things are going and avoid overtaxing your vehicle's charging system. We recommend this 1.5-farad cap for any sub amplifier delivering up to 1,500 watts RMS. Warranty: 1 year. 

T-Spec Capacitor Reviews

Average Customer Review:

15 reviews
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What I needed, wrong container

Written By Anonymous, Miami on Thursday, October 22, 2015

Crutchfield Customer Review (What's this?)

What I needed just wrong container, a tad too long, had to modify a little the area, but at the end, is doing its job perfectrly

No bad

Written By MJ, Illinois on Sunday, May 31, 2015

Crutchfield Customer Review (What's this?)

Love it my sistem runs like a champ my head lights does not dim down with the bass Playing At max volume this capacitor it looks cool and does his job.

t spec cap

Written By nickdio, norwich, ct on Sunday, April 12, 2015

Crutchfield Customer Review (What's this?)

Works great

Pros: Led display, comes with mounting hardware and easy to fillow directions, great price

Cons: Doesnt give accurate voltage reading

Great product

Written By Teka, Texas on Thursday, February 19, 2015

Crutchfield Customer Review (What's this?)

Works well and my lights dont dim. Helps stabilize my amp. I have a very old punch 250a2 that draws a lot of current and this help a lot.

Pros: looks great, works great.

Works as expected

Written By Brent, Doylestown, PA on Sunday, October 12, 2014

Crutchfield Customer Review (What's this?)

The capacitor came with it's own distribution block which made installation a breeze. LED lights look great and the cap works as expected.

Pros: Easy to install, looks great

Cons: None

The service is great. This product helped with the lights dimming,but

Written By Wick, Okc ok on Tuesday, October 07, 2014

Crutchfield Customer Review (What's this?)

Good but there is better.

Pros: Really does work.

Cons: Lights are still dimming.

Great product

Written By Neno, Mount Prospect, IL on Saturday, August 02, 2014

Crutchfield Customer Review (What's this?)

The product works great. LED voltage reading is a nice feature. This unit doesn't have a 3rd terminal, which was something mentioned in another review (not sure if it was on here). It's a 2 terminal cap.

Pros: Does what it should. Includes enough hardware.

Cons: None yet.


Written By Bige94, Wakeeney kansas on Friday, July 18, 2014

Crutchfield Customer Review (What's this?)

This item is great and easy to install comes with everything needed it really improves bass response

Pros: Easy install All parts included Bright led display

Cons: None


Written By Anonymous, Brooklyn NY on Saturday, July 05, 2014

Crutchfield Customer Review (What's this?)


Nice unit

Written By Anonymous, Lincoln Ne on Tuesday, July 01, 2014

Crutchfield Customer Review (What's this?)

Nice cap, easy to set up, clamps are a bit cheesy. Keeps my lights from dimming.

T-Spec Cap

Written By Jason, Sterling va 20164 on Wednesday, April 30, 2014

Crutchfield Customer Review (What's this?)

Looks awesome and does exactly what it needs to do!


Written By kenp, Bradenton fl on Saturday, April 19, 2014

Crutchfield Customer Review (What's this?)

Does what it is suppose to do

Pros: Works well Nice led numbers

Cons: Massive.

cool looking

Written By joe, va. on Monday, March 24, 2014

Crutchfield Customer Review (What's this?)

love the look of this thing,does what it's suppose to.its just the wow factor of seeing it.

T-Spec Capacitor

Written By mfolta, Laddonia, MO on Monday, December 16, 2013

Crutchfield Customer Review (What's this?)

I'm certain the capacitor will do the job that it is intended for, just for my application I do not like it.

Pros: 1.5 Farad should prevent the head lights from dimming.

Cons: No protective cover for the power terminals-must be mounted with decent clearance to prevent shorts.

Helps out

Written By Anonymous, Ms on Monday, August 19, 2013

Crutchfield Customer Review (What's this?)

Does what it says. Helps out with headlights dimming and keeps voltage up about 1.5 volts more than without.

Pros: Does what it claims

Cons: Big and bulky. Needs to be smaller.

Hands-on research

What's in the box?

Download owner's manual

  • 1.5 Farad capacitor
  • 2 Polycarbonate mounting brackets (installed)
  • 5mm Allen wrench
  • 4 Self-tapping screws (5/8" length)
  • 8 Flat washers
  • Resistor bulb
  • User's Manual

Product Research


Overview: This T-Spec v6-series digital capacitor will improve the performance of your car's electrical system by acting as a buffer between the alternator and your amplifier. Stored energy from your car's electrical system is held in the cap and quickly released to the amplifier when needed. High current demand occurs when the music you are playing contains a loud, transient, deep bass signal.

Capacitance: This T-Spec v6-series digital capacitor has a rating of 1.5 farads. While you can never have too much capacitance, it is recommended that you use a capacitor with a minimum of 1 Farad for each 1000 watts of amplifier power.

Terminals: The capacitor features an impact-resistant polycarbonate cover with two terminals on the top that can be tightened/loosened with the supplied 5mm Allen wrench. You should use power and ground cables that are equipped with ring terminals with 1/4" diameter or larger holes.

Voltage Meter: This capacitor has a digital voltage meter on the top to help you monitor your electrical system's performance.

Reverse Polarity Protection: If the capacitor is wired incorrectly, you can damage your equipment or electrical system. To prevent this, the capacitor has an internal relay system which disables the capacitor and triggers a buzzer to sound.

Resistor Bulb: The capacitor comes with a 1/2-watt, 1000 ohm resistor bulb which is used when initially charging the capacitor, and to discharge the capacitor when removing it from the system. You should keep the resistor bulb in a safe storage location when not in use.

Mounting System: The cap comes with a simple mounting system that lets you mount the unit vertically or horizontally, using the four supplied self-tapping screws.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

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