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VFL Audio VFLCOMP1K 1000 Watt Mono Class-D Competition Amplifier

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Key Features

  • 1000 Watt Mono Class-D Competition Amplifier
  • Stable down to 1-ohm
  • 1000 watts RMS x 1 Channel (1 ohm)
  • 500 watts RMS x 1 Channel (2 ohms)
  • 250 watts RMS x 1 Channel (4 ohms)
  • Strap-able for ridiculous power output
Unit includes: 1-Channel power amplifier, Mounting hardware, Wired bass controller, 100 amp fuse and fuse holder and Instruction manual

VFL Audio VFLCOMP1K 1000 Watt Mono Class-D Competition Amplifier
  • 1000 Watts Max Power
  • Stable down to 1-ohm
  • Pulse Width Modulated MOSFET Power supply
  • Double side PCB with high quality SMD components
  • Oversized toroids Power supply for excellent current and voltage control even under the highest demands
  • Amplifier is strap-able so that you can connect and bridge with another for additional power output (2 ohm - 4 ohm load only)
  • Nickel plated terminals for all connections
  • Accepts up to 16 volts DC input for maximum sound output
  • Frequency Response: 20Hz to 350 Hz
  • Total Harmonic Distortion (4 Ω): < 0.15%
  • Signal-to-Noise Ratio (IHF-A Weighted, at 40 Hz): >70dB
  • Minimum 0 Gauge power wire with 180 amp fuse
    Protection circuits
  • 3-Way Protection circuit
  • Internal temperature and automatically lowers input level to prevent heat damage
  • Short circuit protection prevent damage when speaker leads are shorted
  • Overload protection prevent damage from low impedance or blown woofers
    Internal crossovers
  • Variable Low Pass filter: 35Hz - 250Hz at 24dB per octave
  • Variable Subsonic High Pass filter: 10Hz - 50Hz at 24dB per octave
    Audio controls
  • Variable phase control: 0° - 180° phase control
  • Variable Bass boost controls: 0 - +19dB at 45Hz
    Inputs and outputs
  • 1 - 2 channel RCA input accepts up to 6 volt input signals
  • 1 - 2 channel RCA output
  • 1 - Strap-able data connection
  • 1 - Remote bass control input
    RMS Power Rating:
  • 4 ohms: 250 watts x 1 channels
  • 2 ohms: 500 watts x 1 channels
  • 1 ohms: 1000 watts x 1 channel
  • Dimensions: 12-3/4" (L) x 2-1/4" (H) x 9-1/2" (D)
More Information
Manufacturer VFL
Part Number VFLCOMP1K
Amplifier Topology Class Class D
Number of Channels 1 Channel
Total RMS Power at 1 ohm 1,000.00
Total RMS Power at 2 ohm 500.00
Total RMS Power at 4 ohm 250.00
RMS Output per Channel (x1 at 2 ohms) 500.00 Watts
RMS Output per Channel (x1 at 1 ohms) 1,000.00 Watts
RMS Output per Channel (x1 at 4 ohms) 250.00 Watts
Total Peak Power Output 1,500.00 (Watts)
Amplifier Bridging Not Bridgable
Minimum Impedance in Un-Bridged Mode 1 ohm
Strappable Amplifier Yes
Strappable Power Output 2000
RCA Pre-amp Audio inputs 1 Pair
RCA Pre-amp Audio outputs 1 Pair
Preamp voltage 200 mV - 6 V
Speaker level inputs No
Gain Control Yes
Bass Knob / Remote Gain Yes
Built in Crossover Low-pass, Sub-sonic
Cooling Fan No
Color Black
Warranty 1 Year
Recommended Power Wire Gauge 0 Gauge
Overall Height 2.25 inches
Overall Length 12.75 inches
Overall Width 9.50 inches
CEA2006 Compliant No
Return period 30 days
Exchange period 30 days
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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.


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


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



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

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