VFL Audio VFLCOMP1K 1000 Watt Mono Class-D Competition Amplifier

Testing and analysis of the VFL VFLCOMP1K 

VFL Audio is a brand underneath American Bass that has proudly been developing high end car audio for over 3 decades. If you’re trying to build a system that produces thousands of watts of output, VFL is a go to brand.

The VFLCOMP1K is a monoblock amplifier that, according to VFL, will put out 1,000W RMS @ 1 ohm, making it an excellent choice for powering a couple of high powered subwoofers. 

Inside the box

Inside the box are allen keys, a remote bass control… with extension cable, and monoblock amplifier.

Specs

The VFLCOMP1K is a monoblock amplifier that, according to VFL, will put out 1,000W RMS @ 1 ohm.

Connections/Adjustments

The COMP1K features a pair of RCA inputs and a pair of RCA outputs, gain control, subsonic filter, bass boost, low pass filter and phase control. Connect the remote bass control to its input to control levels up front. 

This beastly amplifier makes the minimum requirement of 0 AWG power ground wire a necessity. Fortunately VFL provided oversized terminals for low gauge wire. 12AWG is fine for remote turn on and subwoofers depending on their power.

Daisy Chaining

The VFL COMP1K is designed for single channel operation, but it is also strappable with another COMP1K to create a monster subwoofer amplifier system. One amplifier will be the primary and one will be the secondary amplifier. This daisy chain connection makes 2 VFL amplifiers linkable to 2 ohm and doubles the power of a single VFL amplifier’s 1 ohm power. 

To do this you will link both amplifiers together with an RCA cable and their daisy chain RCA ports. Connect your headunit or source to the master amplifier. This is a great way to power an absolute monster subwoofer and get 2,000W RMS @ 2 ohms.  Make sure you don't starve the amps, you will need multiple batteries and an upgraded alternator. VFL recommends a 180 amp linked fuse.

Dimensions

Dimensions of the VFLCOMP1K include 2-¼” in height, 9-½” in width and 12-¾” in length.

VFLCOMP1K Testing

Two channels driven, 4 ohm, 40 Hz, 14.2v

HP8903B Audio Analyzer: 334.9W RMS per channel, 1% distortion and 36.3 volts of output.

AMM-1: 397 Watts

Two channels driven, 2 ohm, 40 Hz, 13.8v

HP8903B Audio Analyzer: 531.4W RMS per channel, 1.28% distortion and 32.3 volts of output.

AMM-1: 489 Watts

Two channels driven, 1 ohm, 40 Hz, 13.2v

HP8903B Audio Analyzer: 684W RMS per channel, 0.9% distortion and 25.6 volts of output.

AMM-1: 650 Watts

Car amplifier installation

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Amplifier Installation basics

Let's start with the basics of adding or installing a car amplifier. First you will need to plan your installation and power wiring, this usually is the most difficult part of the installation for most.

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In our fourth video we demonstrate how to set the gains on your amplifier to prevent damage to your speakers, subwoofers and even possibly your new amplifier. Using a portable oscilloscope we show you how to set your gains.