The main power switch is on the rear. Since I change out cables and fuses, I occasionally power down the Simaudio 600i, and power it back up. At the front, the Standby button works instantaneously.
Upon initial power-up, my unit switches to the Balanced input, with a volume level of "30.0."
Whil I wouldn't exactly worry, I would keep tabs on this issue. Take notes. If it persists, definitely have the dealer check out your unit.
Best Regards,
-Lummy The Loch Monster
