yes thanks tomo i had a poch about today, as an 8ft box was sqeeling after 2ft, i tuned the volume and it works to 8ft fine now, somtimes though mk1 boxes need other attension other than recalibration, thats where the fixers come into it, and for leeview......... pipa, mickdadd, thats 2 mk1 box fixers and the 3rd doesnt want his details disclosed, so if theres 3 that i know of how many other people must be out there that knows how to fix them ?