Unless they have changed things, it has always said to put it at the "midway" point of 9 o'clock, not 9 o'clock. Midway is between MIN (4 o'clock) and 9 o'clock, or 6-7 like most of us use.

Whether you have the receiver at 0dB for the sub, and MIN on the sub, or 9 o'clock on he sub and say -10dB on the receiver, it makes no difference, your still getting the full 500 watts from the sub.

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