Bass cab question. I have an oversized 215 cab and am putting in 2 FaitalPRO 15PR400 15s in it. I play doom/stoner rock, but sometimes do classic rock grooves with excessive fuzz and fat clean low end boom with a 5 string bass tuned GCFA#D# and a 6 string tuned ADGCFA#. What should I tune the cab to and why? (I have heard 35-50) I am running a first gen Sunn model T on the dual input pushing bass and presence pretty hard. Looking for more of a classic rock on steroids tone over a modern one.