L1 Inputs General Information

General information about inputs

ToneMatch Mixers (T1, T4S/T8S)

Combo Jacks

• The XLR inputs are microphone-level inputs.
• The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
• When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs.

Note

Unlike the L1, F1, and S1 models, the ToneMatch mixers (T1, T4S/T8S) have input trim controls to adjust the input sensitivity. This means that you can connect line-level sources to the XLR inputs and adjust the input sensitivity with the trim controls.

Aux Inputs

• The T1 4/5 inputs are Aux inputs.
• On the T4S the Aux inputs are 5/6
• On the T8S the Aux inputs are 9/10

These are balanced line-level inputs. Use balanced connections with a 1/4-inch Tip-Ring-Sleeve plug. Using a 1/4 inch (6.3mm) Tip-Sleeve plug creates an unbalanced connection and loses up to -6 dB gain.

L1 Model II/ Model 1S

Power Stand Analog Input

This is a 1/4 inch (6.3 mm) Tip-Ring-Sleeve jack.

It is a balanced line-level input. Use balanced connections with a 1/4-inch Tip-Ring-Sleeve plug. A 1/4 inch (6.3mm) Tip-Sleeve plug creates an unbalanced connection and loses up to -6 dB gain.

Adjust the input level with the Analog Input Trim control. Set the trim so the LED light is a solid green. If you see red, turn it down.

L1 Pro

Combo Jacks (Inputs 1 and 2)

• The XLR inputs are microphone-level inputs.
• The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
• When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs.

The L1 Pro systems are unique among all the Bose Portable PA systems because a Digital Signal Processor automatically sets the input gain (like an automatic trim control).

Trim: The DSP automatically selects and compensates 0 dB, 12 dB, 24 dB, 36 dB, and 45 dB analog gain steps. This means that you can connect line-level sources to the XLR inputs, and the DSP will adjust the input sensitivity automatically.

S1 Pro

Combo Jacks (Inputs 1 and 2)

• The XLR inputs are microphone-level inputs.
• The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
• When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs.

S1 Pro+

Combo Jacks (Inputs 1 and 2)

• The XLR inputs are microphone-level inputs.
• The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
• When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs.

Aux Input

This refers to the 1/4 inch (6.3 mm) Tip-Ring-Sleeve Aux Jack on channel 3

This is a balanced line-level input. Use balanced connections with a 1/4-inch Tip-Ring-Sleeve plug. Using a 1/4 inch (6.3mm) Tip-Sleeve plug creates an unbalanced connection and loses up to -6 dB gain.

F1 812

The F1 systems have a mic/line level input sensitivity switch on input one.

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