jlcase

Responses from jlcase

Loud buzz with Marantz receiver preout to amp
SOLVED! I had to run a spare speaker wire between the chassis ground on the Marantz to the chassis ground on the Ashly. No more hum! Thanks for the help, everyone.  
Loud buzz with Marantz receiver preout to amp
Thanks, @toddalin — yes, I have four of those: One for each set of Preamp-to-Mains (front and rear). I removed the top two (front) so that I could plug in the preamp output to the amp. The mains are sitting empty — I tried them with an RCA cable b... 
Loud buzz with Marantz receiver preout to amp
Making progress: The amp has a clip that connects its “input” and “chassis” grounds. The manual states that while the clip should remain there in most cases, a ground loop can be helped by removing it. I removed it, and while a loud hum remains, I... 
Loud buzz with Marantz receiver preout to amp
Thank you for the response — I sent images to Ashly tech support and they didn’t call out a lack of grounding in the connection, but maybe that’s part of the puzzle. Another odd thing is that my Marantz works with the preamp jack engaged — and aud...