Quote Originally Posted by Johnny_Law View Post
Hope this is the correct place to ask this question. I have a 6260 that I used for a time in my music room, fed via an RCA to 1/4" jack cable by a McIntosh C24 which was fed by an RCA wire to my laptop streaming Tidal. The problem was that there was always a background hum, almost like a faint static, audible through the speakers, increasing as the volume knob on the C24 turned to the right. The DC offset of channel A is 24mV and channel B is 14mV which seems acceptable. But the buzz got to me and I switched back to my MC502 which is quiet as a mouse.

I'm trying to figure out whether the hum from the 6260 is due to the ungrounded RCA to 1/4" cable, or because of a problem internal to the amp, or whether that's normal. Any ideas? Thanks in advance.
I turned down the gain on my amplifier, and the hum is almost gone.