I am wondering if any one else has experienced this issue, I have been trying to run a wireless system and it seems to lose and distort the lower frequencies? I have tried the wireless on my other amps and it works fine. Any one have any Ideas as to what may be causing this? I have the +-15Db set to allow for the added input boost but still somehow I am losing the lower frequency signal quality, Even tried to input thru the preamp input with the same results. Any help would be appreciated 