Depends on listening habits. 40 is a little high unless you almost exclusively listen to rock, alternative etc.
I find 35hz to be a good middle ground for a mix of genres
We havent tried these yet. Weve tried tenergy and headway. Someone out here did just make a large bank tho. I'll let you know how it holds. I believe he has it on 2 dc 5k
My team is coming down for the SD show again.. i wont make it because i had prior engagements in Sac that weekend. But ill catch up with you at finals.