hi everybody, i've been out of active audio for years, i have been trying to link rec, not ness. to gain any more power and certainly not to loose any, i have been uns. i have read my yamaha manual,says many ways, pre outs and in's but dont want to loose my old eq. said cecter to second amp. pre in, did not work, and i don't want to run from effect amps, really i just want to couple 3-4 amp's, mostly for clear non effect mode, plus remote spk. control-vol/bass/treble, have a huge listenig area, lots of rec and spk. this is what i wish to do, may be dumb, but it's worth plain with, 0 cost, so if anyone knows how PLEASE LET ME KNOW!, imagine 4 speaker control box's with their own power and control's, oh yeah, each rec. need play same string music at same time, leaving all controll's but tone vole not touched in linked amps, just repeat what passes through main amp. dam hope that made some sence to someone, it's like in my head, but just can't work it out, or spit it out lol