I made one amusing mistake when SPL-ing my system -- I stood up in the middle of the room when using the SPL meter but sat down on the periphery of the room when listening to the system and that made a 2-3 dB difference in center channel setting.

Make sure you have the SPL meter in approximately the same place as your ears will be when listening. My first guess is that (a) your center channel needs to be turned up a bit more, and (b) all your settings are high because you have one pair of sensitive ("loud") speakers in the system and have turned everything else up instead of turning those speakers down.

If you're running out of adjustment room just shift everything down the same number of dB. It's all relative anyways. What are the settings on your other channels ?


M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8