GFA-2 vs GFA-5500
The GFA-5500's power @ 8ω is 200W against the GFA-2's 100W, its damping factor >700 against >800, and its thd 0.020% against 0.050%. Both share signal-to-noise (100 dB).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$375
Around — community and catalog average, updates slowly
About the GFA-2
The Adcom GFA-2 is a classic high-current stereo power amplifier from the early Adcom lineup, influenced by Nelson Pass design principles. Rated at 100 watts per channel into 8 ohms, it features a linear power supply with 4 x 10,000µF capacitors, dual-mono-inspired layout, and rugged output stage for excellent headroom and musical performance. Ideal for demanding speakers in audiophile setups, it offers clean power with low distortion. Fully tested units are available refurbished. No longer manufactured.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 100W @ 8Ω
- Damping Factor
- >800
- Input Sensitivity
- 1.0V RMS
- Input Impedance
- 50000Ω
Analog Output
Analog signal output specifications
- THD
- 0.050%
- SNR
- 100 dB
Connectivity
Input and output connections
- Analog Inputs
- XLR
- Analog Outputs
- Speaker terminals
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 432 × 127 × 305 mm (W × H × D)
- Weight
- 8.2 kg (18 lbs)
Key Specifications
Power: 100W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions