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NVX XCAP1F

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

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• For Systems Up To 1200 Watts
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

Learn more about the xcap1f
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List price $131.99
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$109.99

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Product Highlights


• For Systems Up To 1200 Watts
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

Description


NVX brand icon

Authorized dealer

NVX 1.0 Farad Capacitor
Digital Readout Built-In Power Distribution True 1.0 Farad
Improves Bass Response (SPL)

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
  • Color: Black
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Product history:

NVX XCAP1F thumbnail
(newest, current model)
Rockford Fosgate RFC1D thumbnail
(previous model, replaced by NVX XCAP1F)

Frequently Asked Questions (FAQ)


Connect the included resistor (or a test light) between your main power wire and the cap's (+) terminal. Once the digital display hits 12V, remove the resistor and bolt the wire directly to the terminal to avoid a massive spark.
No. The display is voltage-sensing and will stay lit for a few minutes while the charge settles. Once it detects the voltage is stable and no longer fluctuating, it will automatically enter sleep mode to preserve your battery.
Ensure the ground wire is as short as possible and bolted to bare metal. If the ground is solid, your system may be drawing more than 1200W, meaning you may need to upgrade to a larger hybrid cap or a high-output alternator.
No. Capacitors should be kept in a cool, dry place. Mount it in the trunk or cabin within 18" of your amplifier. Heat and moisture under the hood will significantly shorten the lifespan of the internal electrolytes.
Unlikely. Bypass the cap and connect the amp directly to the battery. If it still pops, the amp is defective. If it stops, ensure the cap and amp share the same ground point to prevent a ground loop or voltage offset.

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Specifications & Details


Capacitor Specifications
Capacitance (farads)
1 farads
LCD Meter Display
Yes
Maximum Input Gauge Size
1/0 AWG
Maximum Output Gauge Size
1/0 AWG
Built-In Distribution Block
Yes
Primary Color
Black
Secondary Color
Silver
Illumination
Blue LED lights
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

NVX

Model Number:

XCAP1F

Weight:

4.00lbs

Internal SKU:

xcap1f

Internal Product ID:

46221

Product and How-to Videos


  • 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
  • NVX XCAP1F 1 Farad Capacitor vs Overrated VM Innovations SRCAP4.5, Rockville RXC4D & RXC2D

Customer Ratings & Reviews


NVX XCAP1F thumbnail image

5 star
88%
4 star
9%
3 star
3%
2 star
0%
1 star
0%



Durability
4.9
Value
4.7
Features
4.9
Design
4.9
Usability
4.9

Customer Reviews

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good value

For a 1 farad capacitor it's a good product. The distribution cap makes ease of install versus a regular capacitor without one. The blue voltage display matches my setup currently. It does help with the power loss, but isn't enough for my 600w rms setup. For the money, features, and ease of install it's worth the money.

By Maq Diesel on December 31, 2014

139 found this helpful


Big volts

My uncle big bubba got me this cap and I have no volt drop. I have some serious power I have a 25 watt system and this cap really helps a lot.

By Larry on December 12, 2014

138 found this helpful


Solved my problems quickly.

Went from a junky Boss capacitor rated at 3 farad that broke to this one. Thank God. Seriously helps the dimming lights, quality made and looks sharp. The Boss one was all plastic and ridiculously looking and this fits nice in my car.

By Winston on October 14, 2012

137 found this helpful


Great Product Great Results

I was impressed by the quality of this product. It supplies plenty enough power to my sub amp to offset my dimming light problem. Also fixed a spark plug energy shortage!

By Vyse on January 3, 2015

132 found this helpful


Nice looking cap

I have owned this cap for a few months now. It performs well. The best part is the charge/discharge device.
The volt display is not ideal for my purposes, but that is a small con.

By QUAN on November 7, 2013

128 found this helpful


Great cap

This is a great product. Have owned for about a month now and it just keeps pumping power to my amp. Everything stays stable and there is no dimming of my lights an its pushing a 1000 watt Hifonics hfi mono block. I would definitely buy again.

By Garrett on October 14, 2012

126 found this helpful


Great Product Great Results

I was impressed by the quality of this product. It supplies plenty enough power to my sub amp to offset my dimming light problem. Also fixed a spark plug energy shortage!

By Vyse on January 3, 2015

126 found this helpful


Works Great

Item works great, easy install, follow instructions for first use and you will have no issues

By None on May 8, 2015

115 found this helpful


Exelent value

I purchased this NVX XCAP1F when I bought the rest of my audio system . I wasn't sure I would need one but with having a little Fiat 500 with a little battery and I am sure a bare minimum output alternator I put one in just in case . I am running a Boss CXX2705 amp that puts out 2700 watts peak and 1200 watts RMS so I put one in from the get go .I don't know if my lights would dim or not but with this baby there is absolutely NO dimming or power loss what so ever . This is a TRUE SPEC 1 Fared cap and made of the highest quality material .. I would put this up against any big name audio equipment out there , in my opinion it is built better then Alpine , Rockford Fosgate , kicker , ect.... , and is hands down the best value out there . Buy one , you won't regret it !! I have not cranked it up all the way yet because I am still breaking in my sub but at 65% of max volume it works without breaking a sweat '! NVX products are fairly new but are built perform !! ..Way to go Sonic for your superior product and service !!

By Freddy Krueger on March 24, 2015

111 found this helpful


Good quality

I bought this cap to go along with my nvx amp and I also bought the amp kit. I really like the quality of the amp kit and and the price was fair on the amp wiring kit and the seemed to have a fair price as well but after I ordered the cap I found it on nvx web site for 59.99 and contacted sonic electronic by email and wa told they would not price match. That kinda sucks that that I had to spend 40.00 more for the same cap and it not like the price match was some off the wall website it was the manufacturer of the cap nvx I guess that teaches you do better comparison shopping but over the cap and the wiring kit were pretty good quality

By Jason on June 9, 2017 Checkmark Icon Verified purchase

70 found this helpful




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$82.49 with coupon | Price details
2026-06-28 23:59:00
15% off an NVX XCAP1F w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP1F Capacitor! No code needed — discount applies automatically at checkout.
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2026-07-27 11:08:20
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