Recently got a Hafler amp to power my Innersound electrostats. Have been have tried a few preamps with them to find an optimal set up. During last attempt to set up the system, I noticed a right channel issue. The channel did not completely disappear but comes through in a raspy and subdued way. I cleaned the contacts and all, but the issue persists.
I changed preamps, used different amps. No issues with speakers. When I changed channels same right speaker continues to have a problem. Does this mean that the issue is somewhere near the right speaker out?