Welcome to the Bose Portable PA Community.
Is the problem no volume or always 100%?
Are you using the Master (analog) output?
What are you connecting the T1 to; and L1 (what model) or something else?
thank you for the response..I have a L1 and connect with a 1/4 cable as you have pictures..I have volume on each channel just no control on the tonematch master knob..advice?...i appreciate the advice!..Donny
It sounds like you the Master Output set to Pre Master Volume. You want it set to Post Master Volume.
Does that help?