GFA-5300 vs Alesis RA500
The RA500's power @ 8ω is 150W against the GFA-5300's 80W, its signal-to-noise 105 dB against 100 dB, its power @ 4ω 250W against 125W, and its damping factor >200 against >300.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$125
Around — community and catalog average, updates slowly
About the GFA-5300
The Adcom GFA-5300 is a stereo power amplifier designed for audiophiles seeking clear, warm, and punchy sound. It delivers 80 watts per channel into 8 ohms and 125 watts into 4 ohms, featuring a dual mono design and International Rectifier HexFets for strong inner detail and smooth highs. The amplifier has a frequency response of 10Hz to 20kHz, a damping factor greater than 350, and a signal-to-noise ratio above 100dB. It is known for its tube-like warmth despite being a solid-state amplifier. The unit weighs 10 kg and measures approximately 111 x 432 x 308 mm. It is highly regarded for its soundstage and reliability, making it a favorite among music enthusiasts and home audio systems.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 80W @ 8Ω
- Power @ 4Ω
- 125W @ 4Ω
- Damping Factor
- >300
- Minimum Impedance
- 4Ω
- Input Sensitivity
- 0.9V RMS
- Input Impedance
- 49.9Ω
Analog Output
Analog signal output specifications
- THD
- 0.180%
- SNR
- 100 dB
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 432 × 111 × 308 mm (W × H × D)
- Weight
- 10 kg (22 lbs)
Key Specifications
Power: 80W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions