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Sony GS Series 4-Channel Amplifier - XM-GS400

Abt Model: XMGS400 | UPC Code: 027242823303
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Product Details

Sony GS Series 4-Channel Amplifier, Model XMGS400

The Sony® GS-400 Class-D subwoofer amplifier affords incredible installation flexibility thanks to its compact size and packs quite a punch. GS series amplifiers offer tremendous value including convenience features such as: modern cosmetics, variable cross-overs, multiple channel configurations and singe-side electrical connections to suit almost any application.


  • Amp Design
    The XM-GS400's 4/3/2 channel configurable output, compact chassis size and single sided connections provide multiple mounting options while maximizing output and control for your audio system
  • 4 Channel Stereo Output
    The XM-GS400 delivers 70 watts RMS per channel at 4 ohm at 14.4 volts, from 20 Hz - 20 kHz with less than 1% THD+N. At 2 ohms stereo, the XM-GS400 delivers 80 watts RMS per channel at 14.4 volts, from 20 Hz - 20 kHz with less than 1% THD+N
  • 2 Channel Mono Output
    The XM-GS400 delivers 160 watts RMS per channel when front and rear channels are bridged into 4 ohm with 14.4 volts, from 20 Hz - 20 kHz with less than 1% THD+N. This unit has a mximum output power of 350 watts per channel when bridged at 4 ohm
  • Built-in Crossovers
    The XM-GS400 has a removable top panel that conceals indepentent front and rear 12 dB/octave variable HPF (High Pass filter) and LPF (Low-Pass filter) crossovers at 50-300Hz. This unit also provides independent front and rear 12 dB/octave sub-sonic HPF (High-Pass filter) crossovers, variable at 6-70Hz to maximize your systems potential. This amplifier also offers independent, variable 0-10 dB 40 Hz bass boost circuit to increase low frequency response
  • Input Flexibilty
    As well as traditional RCA inputs, the XM-GS400 offers direct connections (High Level Input) to the speaker output of your car audio unit if it is not equipped with RCA line outputs. The auto sensing, high level input feature also allows the amplifier to be powered up without the need for remote power turn on connections



  • Max power output: 700W max power
  • Power Ad Hoc: 70W per channel at 4 Ohms from 20Hz-20kHz with < 1% THD
  • Speaker Impedance
    • 2-8 Ohm stereo
    • 4-8 Ohms mono


  • Band
    • Low Pass Filter: 50-300 HZ, -12dB/oct
    • High Pass Filter: 50-300 HZ, -12dB/oct
  • Circuit System: OTL Output Transformerless Circuit Pulse Power Supply
  • Frequency Response: 10-100kHz (+0/-3 dB)
  • Harmonic Distortion: 0.05% (1kHz)
  • Impedance
    • 2-8 Ohm stereo
    • 4-8 Ohms mono
  • Input Level
    • 0.3 - 6.0V (RCA input)
    • 1.2 - 12.0V (High Level Input)
  • Low Boost: 0-10dB (40Hz)
  • Noise Level: 93 dBA
  • Power Supply: OTL Output Transformerless Circuit Pulse Power Supply
  • Signal Circuitry: 6-70Hz Variable -12 dB/Octave Subsonic filter
  • Level Control: High Level Input: 3.0 - 12V


  • Illumination: Blue illumination

Inputs and Outputs

  • Audio In
    • RCA Pin Jacks
    • High Level input connector
  • Audio Out: Speaker Terminals
  • Input(s)
    • RCA Pin Jacks
    • High Level input connector
  • Line Level Input(s): RCA pin jacks
  • Output(s): Speaker Terminals
  • RCA Audio Input(s): Pin Jacks: 0.3 - 6V


  • Current Drain: At rated output: 30 Amp (at 4 Ohms)
  • Input Voltage: 10.5-16V Power Supply Voltage
  • Internal Power Supply: OTL Output Transformerless Circuit Pulse Power Supply
  • Output Power: Maximum Output: 350W x 2 (at 4 Ohms), 150W x 4 (at 4 Ohms)
  • Power Requirements: 12V DC Car Battery (Negative Ground)
  • Rated Output
    • 70W x 4 (20Hz-20kHz, 1% THD, at 4 Ohms, 14.4V)
    • 80W x 4 (20Hz-20kHz, 1% THD, at 2 Ohms, 14.4V)
    • 160W x 2 (20Hz-20kHz, 1% THD, at 4 Ohms, 14.4V)


  • Impedance
    • 2-8 Ohms in Stereo Mode
    • 4-8 Ohms mono
  • Speaker Terminal Type: Gold plated terminals

Approximate Dimensions:

  • Height: 2-1/8"
  • Width: 10-3/4"
  • Depth: 8"

Approximate Weight:

  • Unit: 6 lbs
  • Shipping: 8 lbs

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): 3 Year Parts and Labor
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Key Features
175W x 4 Max Power At 2 Ohms/ High Level Input With Sensing Power On/ Variable HPF/LPF For Front And Rear/ Independent Subsonic Filters/ Independent Bass Boost/ Black Finish
More reasons to buy the Sony XM-GS400 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Sony XM-GS400 is Brand New.
  • The Sony XM-GS400 Ships in a Factory Sealed Box.
  • Abt ships this product for free!
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