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Have you recalibrated all of your speakers with the addition of your vp150 so they are all at 75dB's? If you still are using the same settings within the receiver for distance/dB levels/etc... and have not recalibrated, this could be the issue. The vp150 is a 6ohm design, not sure about your prior center.


Yes, I have recalibrated the other speakers because of such a volume difference. The rest of my polk system is 8 ohms. I have two QS8 on the way though. So I am not sure if I should switch the impedance on the back.