Hey friend,
Have you had any luck? I am also looking for a volume controller for DTT2200 and it is looking pretty impossible. Please help
....Sorry bro... I think that the solution is not the same - I've started this thread searching for the FPS 1600
MY SOLUTION AFTER "reading" the circuit (no ..I couldn't find a shcematic) FOR THE FPS 1600 was to short circuit pins 3, 4, and 6 of the (female) conector at the subwoofer itself - (i'll place a picture)
this allowed me not to control de volume (of course) but to have the amp working at full (perfect..because like that I only have to control the volume at the input like any computer MP3 etc etc does
here's the pic: