GFA-5500 vs GFA-5800
The GFA-5800's power @ 8ω is 250W against the GFA-5500's 200W, its damping factor >1000 against >700, and its thd 0.180% against 0.020%. Both share signal-to-noise (100 dB).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$500
Around — community and catalog average, updates slowly
About the GFA-5500
The Adcom GFA-5500 is a high-performance stereo power amplifier delivering 200 watts per channel into 8Ω. Featuring a 1.5 kVA toroidal transformer and ten MOSFET output devices per channel, it employs completely isolated secondary power systems to eliminate ground loops. The modular design places each channel's circuitry on a dedicated PCB mounted to outboard heatsinks, with thermal protection and distortion alert LEDs. Its Nelson Pass-inspired three-stage design delivers detailed sound with a damping factor of 700 and THD below 0.02%.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 200W @ 8Ω
- Amplifier Class
- AB
- Damping Factor
- >700
- Input Sensitivity
- 1.4V RMS
- Input Impedance
- 100000Ω
- Max Input Voltage
- 10.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.020%
- SNR
- 100 dB
- Output Voltage
- 1.4V RMS
- Output Impedance
- 0.1Ω
- Max Output Voltage
- 10.0V RMS
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 432 × 178 × 349 mm (W × H × D)
- Weight
- 25.9 kg (57 lbs)
Key Specifications
Power: 200W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions