Hi I play for sequence dancing for up to about 70 people so I was wondering if the T1 tone match would improve my sound due to the fact I would take two leads from the keyboard into the T1 instead of one direct to the L1 compact
I looked at the Tyros 5 specifications. I found, there's a single output for Left+Right.
If you connect that output to Compact Channel 2, you should get the full output of the Tyros 5. You don't need the T1 to combine the Left and Right outputs for you.