Morden, I tried to calibrate per your guide, but cannot adjust the volume of the rear speakers. They are connected and there is sound coming from them, but am unable to control the volume level. When I go to setup, I can adjust the dB levels on everything, including the rears, but when using the remote for volume control can only adjust the SB and the Sub. Cannot figure this one out...Did you calibrate using the guide in my signature?
I would say your sub is a bit high, my sub is set at -3.5
The bass is overpowering on the zf9 and does need dialled back.
By overpowering do you mean the bass, or could you explain further?