Hum or buzz through speakers


I just turned over my system from all B&K to Audio research and McCormack. I was running the Audio Research through the B&K until Monday when I put the McCormack DNA-1 in place. I am hearing a hum or buzz through my Vandersteen's audible from three feet away. Preamp is ARC SP9MK2. Tubes are 6922 Golden Dragons which I am going to change over to some Amperex 7308 USN-CEP. Would this be tube noise that perhaps the McCormack is picking up where the B&K did not or is there something in the McCormack amp that would cause this.

Eagleman
eagleman6722

Showing 1 response by elevick

I love the Golden Dragon 6922's. They are great for the money or for any value. I've been using GD 6922's for about 5 years now and love them. The 12ax7's are quite good also. Very reliable, clean and unbiased sound.