Ok so I was going to set the gains on my rf bd1500.1 with a dmm and they will only read 17.9v with a 50 hz test tone. Anyone know what's going on? I haven't used this amp in years. Is it possible that it just messed up? Any way I could do some test to check it out? Oh I just remembered I did use it a month back and hooked it up to two jl10's for about 30 sec before I blew the surround off them. I disconnected the remote wire off of it and haven't powered it up until today. I had phase set at zero. Subsonic filter off. But if I would adjust the lpfreq filter the volts would move up and down. Also that is with the gain wide open. Hi set to 45 sub at -12 db slope. 50 hz filter from head unit. Set to mono. I think that's everything. All sub levels set at zero.