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Home » Car Audio, Video & GPS » Car Audio » Car Amplifiers » 4-Channel Amplifiers » Boston Acoustics GT-42
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Boston Acoustics GT-42

4-Channel High Current Amplifier

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I'm hesitant to purchase online from a company I'm not familiar with. Sonic Electronix had the item I wanted at a great price, so I took a chance. Their pre-delivery notification was prompt, as was the actual delivery

- Michael from Wisconsin

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  • 4-Channel High Current Amplifier
  • 2 Ohm Mono Stable
  • Advanced cooling allows varied mounting positions
  • Adjustable feet for varied mounting surfaces
  • Screw-down security cover protects tuning controls
  • Terminals accept bare heavy-gauge wire
  • RMS Power Rating:
    • 14.4VDC:
      • 100 watts x 4 chan. @ 4 ohms
      • 150 watts x 4 chan. @ 2 ohms
      • 300 watts x 2 chan. @ 4 ohms
      • 450 watts x 2 chan. @ 2 ohms
    • 12.6VDC:
      • 75 watts x 4 chan. @ 4 ohms
      • 120 watts x 4 chan. @ 2 ohms
      • 220 watts x 2 chan. @ 4 ohms
      • 350 watts x 2 chan. @ 2 ohms
  • Adjustable input sensitivity: 0.2 - 5 V
  • Variable High-Pass Crossover: 20 - 350 Hz (12 dB/Oct)
  • Variable Low-Pass Crossover: 50 - 350 Hz (24 / 12 dB/Oct)
  • Variable Q Control: 0.7 - 1.2
  • Power and Safe LEDs
  • Recessed RCA Inputs allow clearance for tight mounting locations
  • Optional subwoofer level control not included
  • Dimensions: 22" L x 9" W x 2-1/2" H
  • 1-year SonicElectronix.com warranty
Power Specifications - Full Range Channels
RMS Power @ 4 ohms 100 watts x 4 channels
RMS Power @ 2 ohms 150 watts x 4 channels
RMS Power @ 1 ohm Not Stable
Bridged RMS Power 450 watts x 2 channels
Peak Power Output 1800 watts approx.
Amplifier Specifications
Number of Channels 4
Total RMS Power Output 900 watts
Minimum Impedance Unbridged 2 ohms
Minimum Impedance Bridged 2 ohms
Speaker Level Inputs No
Preamp Outputs No
Signal-to-Noise Ratio 100 dB
Fan Cooled No
Fuse Rating 25A x 3 
Warranty and Return Policy
Return Policy Standard Return Policy
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Product Summary

Manufacturer: Boston Acoustics
Model number: GT-42
Weight: 16.00 lbs
Internal SKU: gt42
Internal product ID: 3697