audio note ankoru

I had a AN Meishu and now a AN P3 Silver and both amps had/have a low hum coming from the amps into the speakers.

There is now a MK2 version and the problem may have been delt with in the newer amp.

E-mail Peter Q of AN with your concern.

I have a mostly Audio Note system driven by a pair of Kageki mono blocks. And when I first set-up the system, I would get a noticeable hum on both channels while playing vinyl. I discovered I had to turnoff of my computer, transport and DAC; then, the noise dropped drastically. The need to turn the computer off disappeared when I installed dedicated lines. But, even with these changes, I still get some noise,if I get close to the speakers when music is not playing. I attribute this to the Cunningham single plate 2A3 which are notorious for being noisy tubes. However, the amount of tube noise I get is more than off-set the quality of the sound when the music is playing.

It could be something as simple as a ground loop problem. Disconnect the interconnect from the amplifier and see if it still hums, or use a cheater plug to bypass the amps' ground and see if the hum still persist.