I was talking with Curt from Velo the other day about a problem I was having and THAT update came up in the conversation. He told me the ONLY thing it does is change the subsonic filter to 5Hz. I guess a bunch of SVS guys ganged up on Velo and asked for lower. I have both my SVS set to 20Hz and get more ass-end than I know what to do with, no firmware update for me.