Mike, if you mean that all your settings before you calibrated were the same with the 4311 as with the 3808, it would seem to indicate that the sub test tone in the 4311 is at a higher level. If so, the calibration is still correct when the 4311 sets it at -10dB, but lowering the sub level control before calibration would give an end result closer to 0dB.

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Enjoy the music, not the equipment.