T1 ToneMatch® Audio Engine / 1/4 inch Output Connections to L1® Family Members
Connecting from a T1 ToneMatch Audio Engine ¼ inch jack (Master or Aux) to other members of the L1® Family is simple. This article is applicable to L1 Compact, L1 Classic, L1 Model I or L1 Model II.
Overview
You can use TS (Tip Sleeve) unbalanced cables, OR TRS (Tip Ring Sleeve) balanced cables. If the cable uses ¼ inch jack plugs and the ends are the same, then the cable should be fine.
OR
Classic or Model I
For full details see: T1 ToneMatch® Audio Engine / Power Stand Input Setting
¼ Inch Tip-Sleeve (unbalanced) to ¼ Inch Tip-Sleeve (unbalanced)
This should work fine.
¼ Inch Tip-Ring-Sleeve (balanced) to ¼ Inch Tip-Ring-Sleeve (balanced)
Since the ¼ inch phone connections at the Bose Classic and Model I Power Stand are unbalanced there is no particular benefit using balanced cables but there is no harm.
L1 Model II
¼ Inch Tip-Ring-Sleeve (balanced) to ¼ Inch Tip-Ring-Sleeve (balanced)
A balanced connection is preferred and will provide better noise rejection over greater distances than the unbalanced connection.
¼ Inch Tip-Ring-Sleeve (unbalanced) to ¼ Inch Tip-Sleeve (unbalanced)
This should work fine but a balanced connection (immediately above) is preferred especially if you will have cable runs in excess of 20 feet (6 meters) or if you hear line noise, hum or hiss.
L1 Compact
¼ Inch Tip-Ring-Sleeve (balanced) to ¼ Inch Tip-Ring-Sleeve (balanced)
A balanced connection is preferred and will provide better noise rejection over greater distances than the unbalanced connection.
¼ Inch Tip-Ring-Sleeve (unbalanced) to ¼ Inch Tip-Sleeve (unbalanced)
This should work fine but a balanced connection (immediately above) is preferred especially if you will have cable runs in excess of 20 feet (6 meters) or if you hear line noise, hum or hiss.
This is page 12 of the L1® Compact Owner's Guide (pdf format)