Template:Balanced TRS from T1 to T8S
The output from the T1 ToneMatch Audio Engine is a balanced mono 1/4 inch (6.35 mm) Tip-Ring-Sleeve and the input on the T8S ToneMatch mixer is a balanced mono 1/4 inch (6.35 mm) Tip-Ring-Sleeve so use a cable like this.
1/4" TRS Balanced Patch Cable (audiopile.net)