I have a Martin Logan Descent subwoofer. I initially had the setting on 2.5 for the built-in amp (volume). I was not feeling the in the chest type bass that I wanted so......... I decided to try something that I am hoping you guys say was the good thing to do. I turned my subwoofer output on my RECEIVER down more than halfway to about -12 db (the range is from -20db to 0db). I then turned up the subwoofer built-in amp to about 7 (out of 10) and the bass got deeper and the sound effects had more punch etc for movie tracks. I can feel it allot more than before. Is this method incorrect? Thanks guys.