I would definitely talk with Steve Huntley at Great Northern Sound. The SP6 is on his list of packaged mods which means he knows the potential of this piece of equipment. Steve's a great guy to talk with and he will give you solid advice. I have nothing but praise for GNSC.
Check it out... www.greatnorthernsound.com
Mike
Check it out... www.greatnorthernsound.com
Mike