One last small questions - (4) did someone say that one can mute the internal speakers without putting a 1/4" plug in the headphone jack?

Thanks for any answers...

Jim
_________________________
Genos / Tyros5 / HK Lucas Nano 600 / FTB Maxx 40a / EV ZX1A / Rock'n'Roller cart / Hauptwerk virtual pipe organ / misc other audio & music toys