T1 ToneMatch® Audio Engine / Connections to Compact

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T1 This information is applicable to the T1 ToneMatch® audio engine
L1 Compact

This article covers connections from the T1 ToneMatch Audio Engine Master Output or Aux Output to the L1 Compact. You will connect to L1 Compact channel 2 1/4 inch (6.35 mm) Tip-Ring-Sleeve. Connecting to the L1 Compact Channel 1 is not recommended because that channel has a built-in vocal microphone ToneMatch® Preset.
Power for the T1 ToneMatch Audio Engine
Please note: You will need a ToneMatch Power Supply to run the T1 ToneMatch Audio Engine.
1/4 inch (6.35 mm) Tip-Ring-Sleeve
The T1 ToneMatch Audio Engine Analog Outputs and the S1 Pro System 1/4 inch (6 mm) inputs are balanced. For best results use a 1/4 inch (6.35 mm) Tip-Ring-Sleeve cable for a balanced connection. You can use a 1/4 inch (6.35 mm) Tip-Sleeve cable, but you will lose up to -6 dB in signal strength and you may pick up line noise.

T1® to Compact Channel 2

You can connect a T1 ToneMatch Audio Engine to L1 Compact

Here is an excerpt from page 12 of the L1® Compact Owner's Guide (pdf format)


Connect FROM T1 ToneMatch Audio Engine Master or Aux Output using ¼ inch jack connections.

Connect TO the Compact Channel 2 volume straight up (12:00 o'clock to 1:00 o'clock) for good results. You can turn it up higher, but if you see the light on the Compact flickering red, turn down the volume on the 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.

Tip-Ring-Sleeve to Tip-Ring-Sleeve

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.

Tip-Sleeve to Tip-Sleeve

Channel 2 Connection from T1 ToneMatch Audio Engine Details

Connect the T1 ToneMatch Audio Engine Master output L1 Compact channel 2.


Compact Channel 2 Line Level.png

Turn the Channel 1 volume all the way down (fully counterclockwise) unless you have a microphone attached to it.

Two T1®s to a Single Compact

Two T1®s to Separate Inputs on Compact Channel 2


Compact Channel 2 detail

Compact Channel 2 Line Level and RCA.png

Suggested by Tom the Guitar Guy[1]

Daisy Chain Two T1®s to Compact Channel 2


Compact Channel 2 detail

Compact Channel 2 Line Level.png

  1. Tom the Guitar Guy in the Bose L1® Forum

For more general information see: T1 ToneMatch Audio Engine and L1 Compact