I installed a SD6 amp that is running my 4 pair of in boat speakers, a JL audio 750.1 for the pair of Rev 10's, and a WS420 amp, in August of 2016. Today when I started up my boat and checked the stereo after the winter storage, I noticed no sound coming from my front speakers. Everything was working fine when I put the boat away last year.
I tried adjusting the balance and fader, but still no sound. I then switched the speakers from inputs 1 and 3, and the front speakers worked but the rear ones did not. I also tried switching the input switch back and forth, and I tried putting the input to 3 and 4 versus 1-2. Still no sound out of the front cabin speakers. I think the output from the zone 3-4 is dead. Can this be repaired or is there something I can try? Hate to loose a $1300 amp after just two seasons of light use.
Thanks for your help.
Peter