DH500 vs Adcom GFA-5500
The GFA-5500's power @ 8ω is 200W against the DH500's 255W, its thd 0.020% against 0.025%, and its damping factor >700 against 60. 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 DH500
The Hafler DH-500 is a stereo power amplifier kit introduced in 1988, known for its solid build quality and high power output of 255 watts per channel into 8 ohms. It features a frequency response from 5 Hz to 40 kHz, total harmonic distortion of 0.025%, and a damping factor of 60. The amplifier uses a combination of 27 transistors, 12 MOSFETs, and various diodes to achieve its performance. It weighs approximately 45 lbs and measures 7.25 x 19 x 13 inches. The design is praised for its reliability and power, though some internal wiring upgrades are recommended for optimal noise performance. It is a highly regarded amplifier capable of driving demanding speaker loads with clarity and power.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 255W @ 8Ω
- Damping Factor
- 60
- Input Sensitivity
- 2.4V RMS
Analog Output
Analog signal output specifications
- THD
- 0.025%
- SNR
- 100 dB
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 482.6 × 184.15 × 330.2 mm (W × H × D)
- Weight
- 20.41 kg (45 lbs)
Key Specifications
Power: 255W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions