I have finally set up the bass managment feature up to my expectations.I had to set channel level on all speakers to -4 setting the sub at +6.This has given me the best effect so far. ( Hsu VTF 3 MK II)

I have added another fan to my componet rack as this Marantz runs very warm, which I understand is common with Marantz.
Any sugestions on quite/effective fans?
I am currently using old computer fans which seem quite enough, just need more airflow.