Expert Service 1-661-257-9993 [Hours]


True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

In Stock. Only 1 Left!

Thanks , You Pay:


with warranty

+ FREE Shipping in US 48

Order within 13 hrs 18 mins to ship 1/24

Arrives by Thursday, Jan. 26 to zip 20147

60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

Get FAST answers from customers ASK a Question See questions answers

General Features:

  • NVX Digital 1.0 Farad Capacitor
  • True 1 farad capacitor for systems up to 1200 watts
  • Built-in distribution block
  • Bright blue LED voltage display
  • Improves bass response (SPL)
  • Increases the peak power of your amp
  • Helps reduce dimming lights
  • Screw terminals for easy connections of power/ground cable
  • Includes mounting hardware for a secure installation
  • Color: Black
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty


Second Depth
The second depth is used only when the box is slanted or angled. This value is the top measurement and it is measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
Color of handle.

Warranty and Return Policy

Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Browse 10 questions and 49 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Because of other good reviews on power cable and other install components
brandon w on Dec 20, 2016
I clicked on it and i saw that there was a video attached with it.. that made me trust it 1000x over any of the other ones.. it also had all 5 star ratings.. looks great as well
Jose B on May 3, 2016
To keep noice interference in the power cable to a min
Nicholas G on Nov 26, 2016
better to have than this one is highly rated with satisfied customers
Richard R on Apr 13, 2016
What is the size of the capacitor? I need to install it in a tight space, so real fitment dimensions are requested, thanks.
JOSE A on Jun 26, 2015
Best Answer: 10 inch long 3 inch round. Thats what she said. Give 2 inch extra around for wires
Reply · Report · Jeff H on Jun 26, 2015
· Add Answer · I Have This Question Too (2)
Doesn't anybody know how I can utilize the built in distribution block( with two amps a mono and a 4 channel), given that this particular cap does not have a rem wire option? The only way I know is using to two external blocks.
cesar d on Mar 4, 2015
Best Answer: As far as I can see there is no need for this cap to have a rem wire. The cap will turn it self on as soon as it detects voltage draw
Reply · Report · kyle j on Mar 4, 2015
· Add Answer · I Have This Question Too (1)
does NVX XCAP1F has a remote wire in it ?
megamike on Apr 17, 2015
Best Answer: Dear Megamike,

I had the same question, so after i fully charged it I had a pretrial run hooked all my cables together without run a remote wire to the cap and indeed this cap other than having a Dblock it contains an integrated remote connection with the function of a resistor. I hope this helps AND REMEMBER TO CHARGE IT BEFORE YOU USE IT.
Reply · Report · cesar d on Apr 22, 2015
· Add Answer · I Have This Question Too (0)
I have a sub installed in my car and it has been working great for a few weeks now with no problems. I got in my car today and started driving around (without any music on) and my sub starts making a humming noise. It seems to get louder the faster I am going in my car and goes in and out. What kind of problem am I dealing with and my friend recommended I get a capacitor, will this help?
Matthew M on Feb 8, 2015
Best Answer: A capacitor is not a ground loop isolator, and I'm afraid it won't help in this scenario. It sounds more like interference on the signal heading to the amp. Can you isolate this by either disconnecting the RCA cable to the amp and listening for the hum, or swapping the cable. I have seen and read about folks getting hum when running their cabling beside their power, but I found by using balanced connections, I never ran into this luckily. I'd return to the cable routing and see if maybe the power and signal path are too close together. Cheers and good luck!
Reply · Report · Judson C on Feb 8, 2015
· Add Answer · I Have This Question Too (0)
I have a Kenwood KAC-9106D amp hooked up to two kickers rated for 1000RMS/2000Max at 2ohm impedance... my lights dim when almost any bass hits. Would this capacitor be capable of solving my problem? I see it says up to 1200 RMS. Is that max or RMS?
Darko J on Oct 28, 2016
Kenwood KAC-9106D
Kenwood KAC-9106D
Best Answer: This cap will help you out alot. I run an RE Audio amp, 2000 watts max. I run 1000 watts rms at 1 ohm to two Kicker CVR 12's and it works great. Before the cap my lights dimmed everytime the bass dropped. After installing this cap the dimming is completely gone. Plus it looks cool in my trunk as a bonus.
Reply · Report · Darien Cox on Oct 28, 2016
· Add Answer · I Have This Question Too (0)
on this capacitor can the amp and capacitor share the same ground? i see that this cap has a Built-in Distribution Block.
Devan G on Aug 4, 2014
Best Answer: Yes and it's works perfectly too. I have my 0 gauge going to a distro block, then my 4 gauge goes to my nvx cap, then to my mono block amp, then my 8 gauge goes to my 4 channel. Running everything off a xs power d1200 w/o big 3 upgrade and system hits hard.
Reply · Report · Richard S on Aug 5, 2014
· Add Answer · I Have This Question Too (0)
How many outputs does this cap has for the distribution block?
Juan G on Aug 12, 2014
Best Answer: Hello,

Two Positives & Two Negatives.
Reply · Report · Customer SStaff on Aug 13, 2014
· Add Answer · I Have This Question Too (0)
Is the voltage display reading my cars voltage current or the capacitors voltage current?
Shawn “ on May 16, 2015
Best Answer: it is reading the voltage that is coming into it
Reply · Report · David B on May 16, 2015
· Add Answer · I Have This Question Too (0)
What is the max working voltage? From the description, it looks like this should work up to 20V, perfect for an 18V (max, not RMS, nominal, etc.) system. However, I suspect this might just be the voltmeter's range.
Thomas C on Jan 5, 2015
Best Answer: I have found the working range to be 11-14 volts, usually 12.x. You would need a high performance battery and alternator to get 20V and probably a better performing capacitor.
Reply · Report · Corey S on Jan 6, 2015
· 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: NVX XCAP1F

  • NVX XCAP1F True 1 Farad Digital Car Audio Capacitor
  • How To Install A Car Audio Capacitor
  • How To Charge and Install a Capacitor | Car Audio Q&A