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 solid red (flickers of red are okay) or you hear distortion, 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