Yamaha RX-777 Solid State Amp Receiver - On Demand PDF Download | English
NS-777 - Downloads - Speaker Systems - Audio & Visual - Products - Yamaha - Other European Countries
Sound doesn't coming from mid speaker on both yamaha ns-777. They are connected to denon AVR-3700H. So doesn't matter what I'm playing, movie, song, regular TV sound doesn't come from middle speakers
YAMAHA NS-777 Service Manual download, schematics, eeprom, repair info for electronics experts