400W 4 Channel Amplifier


400W 4 Channel Amplifier



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Four Channel Amplifier

400W 4 Channel Amplifier View larger

Versatile 4 channel amplifier packs massive power and quality in a compact size.  Great for either a four speaker build, or two speaker with single or multiple subwoofer build by by bridging channels 3 & 4.

  • Class A/B Topology
  • Power Rating: 75w x 4 @ 4 ohms Stereo 100w x 4 @ 2 ohms Stereo 200w x 2 @ 4 ohms Bridged
  • Dimensions: 14.5” L x 8.4” W x 2.1” H


Premium Build Quality for Ultra Performance

  • Legendary Phoenix Gold massive unregulated power supply built for dynamic headroom and to drive low 1ohm impedance loads
  • Audio Precision Quality Control Verification

Chassis Features

  • Audiophile BiPolar Output Transistors for efficient high current push
  • Surface Mount Component Technology, double sided PCB
  • High Level Inputs for easy OEM Integration
  • Direct Insert Power and Speaker Terminals
  • RMD port allows you to add a remote monitoring display, giving you a visual of the voltage of your system

Total Control of Your Music Output

Variable filters on each channel allow you to fine tune your musical output to the precision you demand. All crossovers feature aluminum shaft precision sealed potentiometers.

  • Instruments and vocals are passed through with clarity to your front and rear channels with a Crossover Range of 40Hz to 400Hz



Frequency Response

± 1dB from 20Hz to 20kHz

Signal to Noise Ratio


High and Low Pass Crossovers

12dB per Octave

Crossover Range

40Hz to 400Hz

Low Level Input Range

200 millivolts to 8 volts

Lowest Recommend Load

4 ohms Bridged / 2 ohms Stereo

Typical Efficiency


Damping Factor

Greater than 200

RMS Power Output

75w x 4 @ 4 ohms Stereo

100w x 4 @ 2 ohms Stereo

200w x 2 @ 4 ohms Bridged



Recommend Power Wire Fuse: 30a

Power/Ground Wire Size: 8 Gauge

Amplifier Gain Adjustments
Amplifier Gain Adjustments_en
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RX Phoenix Gold Amp Manual
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