So I'm finally getting around to ordering the BFD. Have Swans M-1s and an SVS 16-42PC. Every time I have measured my settings over the years the bass reponse for freqs. under 50 or so has been 5-10 db higher than average value at 100Hz or so. With current set up on Avia my preferred setting for sub is 6 db higher than main (crossover at 80Hz. I assume this is because of the decreased sensitivity to lower freqs. especially at the lower volumes I listen at. I have a medium size room and am about 10' back from plane of front speakers. Here's my question. Wouldn't it be better to dial in a rising response for the sub than just equalize it flat then bump the whole low end up to my 6db increase? I'm thinking that the difficulty percieving bass gets more pronounced as freq. gets lower so wouldn't this be a more "natural" way to equalize? If yes at what db point would you start to raise the response?