I've recently discovered that the pre-amp on the left channel of my SA 408 doesn't seem to be working. I can hear music playing faintly from my left speaker, as you'd expect if you didn't have a pre-amp, and if I swap the cables around the problem switches speakers. I'm certain the cable isn't causing the problem and looking inside nothing seems too out of place. Has anyone got any advice? Because I'm completely stuck.
Thanks.