Audio-GD Master 3A

A sublime amplifier in every way...

Linear Fidelity & Non Negative Feedback

Uncluttered and incredibly efficient connectivity

Balanced Pure Class A / R-Core / ACSS

Pure Class A

The Master 3A is a 50W pure class A power amp, when it working, it can achieve 50 degree centigrade (Room temperature at 28 degree centigrade, please place them at the air flow area).

The Master 3A has 90W at 8 ohms, even with 90W full power output, the THD+N  still  low to 0.18% at 1KHz and 0.004% at 20KHz, much lower than some power amp at 90W output but declare 200W max power.

Usually the transistor built in power amp had been recommend the actual output power is around 1/5 to 1/3 of the max power output for keep the distortion as low, so the Master 3A can work as well as some  300W power amps.

360W at 2 ohms each channel output. For the home audio system,  if the speaker with lower than 86DB sensitivity, the listen room usually around 20 square meters, if the listen room is larger, the speaker usually has higher than 88DB sensitivity , for these situations, 1W / each channel avg. power already can make the speaker for normal listen, even with the quite loud listen, 5W / each channel avg. power already can boost close 100DB on the 88DB sensitivity speaker. In the case the Master 3A still has 18x times spare power, and the pure class A design make it drive ability stronger than some same power even higher power amps, that is enough for the dynamic music playback.

SPECIFICATIONS