joah Posted February 3 Posted February 3 Hello all, I have a Rotel RB-985, 5 channel amp which is quite old. But considering pairing it with my Yamaha RX-A6A for my 7.1.4 setup to offload the built in amp However one of the channels(left front) is making a sine wave/varying sound output, when nothing is connected to the input. Link to audio noise: https://whyp.it/tracks/253536/rotel-rb985-noise-on-left-ch I'm quite handy and open to try to solder / replace some of the electronics. But unsure where to start. Any advice? Best Regards Joakim
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