Do you mean a Pioneer SX-780? That is a late 70’s receiver. It’s doubtful you could have overdriven the receiver without first hearing gross distortion. The KLH Barron is an easy load to drive, so that shouldn’t be an issue, and Pioneer receivers have pretty robust amplifiers.
Obviously check all connections. Plug a set of headphones in, if they sound fine then it’s not the amp, your problem is a patch cord or connection someplace.
If it ends up being a blown amp, and a Pioneer SX-780, it’s worth repairing.
Obviously check all connections. Plug a set of headphones in, if they sound fine then it’s not the amp, your problem is a patch cord or connection someplace.
If it ends up being a blown amp, and a Pioneer SX-780, it’s worth repairing.