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Five Channel Home Theater Amplifier
2 Year Warranty
30 Day Returns
where to purchase
The GFA-5705 amplifier can drive a broad range of loudspeakers, including those with very low impedances, at sustained high-power levels, even when the impedances are highly reactive. Great care was taken to ensure that the distortion in the amplifier would remain extremely low. The power supply in the GFA-5705 has enormous reserve with an extremely large transformer feeding a storage bank of 30000uF per channel & total of 150,000uF of filter capacitance. The transformer itself was designed for extremely good regulation, insuring stable voltages regardless of the power demands from the amplifier. Its higher efficiency was insured by using a toroidal design.


  • Balanced XLR & unbalanced RCA inputs
  • 200 watts per channel, 8 ohms
  • 300 watts per channel, 4 ohms
  • Large outside double heatsinks
  • Auto ON/OFF with 12V Trigger
  • Covered 24k gold plated 5-way speaker terminals
  • THD+Noise @ 200 Watts into 8 ohms all channels driven a 1kHz:  0.008%
  • THD+Noise @ 300 Watts into 4 ohms all channels driven a 1kHz:  0.01%
  • Frequency Response:  10Hz to 20kHz, +0 - 0.25dB
  • Power Bandwidth:  -3dB, 5Hz to 100kHz
  • Dynamic Headroom @ 4 ohms:  1.2dB
  • Signal-to-Noise Ratio, "A" Weighted, 200 Watts into 8 Ohms:  >106dB
  • Gain:  27dB
  • Input Impedance: 22k ohms
  • Input Sensitivity (200 watts into 8 ohms):  1.8V rms
  • Damping Factor:  >300
  • Power: 120V AC 50/60 Hz, Max power consumption 2000VA
  • Dimensions:  8 3/4" x 17" x 17 3/4" with rear carry handles
  • Warranty: 2 yr. limited manufacturer


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"Great Amp. Great Power! Power is well above average, bass mid & treble almost exact."

Kenneth J. CA

"Theater-Quality Sound with plenty of headroom. Fantastic amp, robust and powerful."

Gregory B. MA

"I've bought two pairs of these speakers and now I can't live without them."

Shawn K. MI

"I can hear no difference in sound quality between AMP2400 and the amps which cost twice as much."

Ronald M. PA
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