All Classé models, including the DR-15 are:
Pin 1 = Ground
Pin 2 = Non-Inverted (+)
Pin 3 = Inverted (-)
The DR-15 will safely drive 4 ohm nominal speakers that drop to 2-3 ohms. I have driven similar loads with a DR-10, no problems.
Pin 1 = Ground
Pin 2 = Non-Inverted (+)
Pin 3 = Inverted (-)
The DR-15 will safely drive 4 ohm nominal speakers that drop to 2-3 ohms. I have driven similar loads with a DR-10, no problems.