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Si Console ALT and CLR Functions

Written by Jose Liberio Cruz

Updated at January 13th, 2026

Table of Contents

Question:   Answer: CLR Functions: ALT + CLR Functions: Other ALT Button Functions:

Question:  

How do I use the ALT and CLR function buttons on Si consoles?


Answer:

Here is a list of functions that can be done with the ALT and CLR buttons.

 

CLR Functions:

CLR + SEL button (On Individual Channels)

Reset all audio parameters within the channel or bus to the factory defaults (does not affect functions such as SOLO)

bus type, names patching and mute assignment, or preamp gain).

CLR + HPF (ACS)*

Reset HPF setting for the currently selected channel back to default.

CLR + EQ (ACS)*

Reset all EQ section parameters for the currently selected channel.

CLR + GATE (ACS)*

Reset all Gate section parameters for the currently selected channel.

CLR + COMP (ACS)*

Reset all COMPRESSOR parameters for the currently selected channel.

CLR + GEQ HI/LO (FADERS)

Reset all Graphic EQ levels to 0dB for the currently selected channel.  Only works where GEQ is available (output /

bus channels).

CLR + Mute Master 1-8

While in MUTE setup mode: Clear channel mute assignments to the selected Mute Master.

CLR + VCA Master 1-8

While in VCA setup mode: Clear Fader assignments to the selected VCA Master

*Assignable Channel Strip of selected channel

CLR + TOTEM (FADER FOLLOW) button

Reset all contributions and ON status from channels or buses to the selected bus back to factory defaults.

 

ALT + CLR Functions:

ALT + CLR + SEL

Reset all audio parameters in all like-for-like channels across the whole console (does not affect functions such as ​SOLO, bus type, names patching and mute assignment, or preamp gain).

ALT + CLR + EQ

Clear all EQ section parameters across the whole console (on ALL channels).

ALT + CLR + HPF

Reset all High Pass Filters across the whole console to default.

ALT + CLR + COMP

Clear all Compressor section parameters across the whole console.

ALT + CLR + GATE

Clear all GATE section parameters across the whole console.

ALT + CLR + PHASE

Resets the phase to Off across the whole console.

ALT + CLR + LR

Resets all LR routing to Off across the whole console.

ALT + CLR + MONO

Resets all MONO routing to Off across the whole console

ALT + CLR + Any MIX tOTEM button (MIX 1-14)

Resets all channels' contributions to all 14 Mix busses to zero.  It Does not affect the Auxiliary Mix bus master channels. ​

ALT + CLR + Any FX tOTEM button (FX 1-14)

Resets all channels' contributions to all four Lexicon FX Send busses to zero.  It Does not affect the FX Send bus

master channels or master levels.

ALT + CLR + Any MTX tOTEM button (MTX 1-14)

Resets all channels' contributions to all four Matrix busses to zero.  It Does not affect the Matrix bus master channels

or master levels.

ALT + CLR + Any Mute Master Button

While in MUTE setup mode: Clear channel mute assignments to all Mute Masters.

ALT + CLR + Any VCA Master Button

While in VCA setup mode: Clear channel fader assignments to all VCA Masters.

 

Other ALT Button Functions:

ALT + ON

While any MIX tOTEM button (MIX 1-14) is selected, pressing the ON button will sets the selected mix send fader to unity.

This can be very helpful when creating post fader mix or group whereas all faders need to be quickly set to Unity.   You can press more than one ON button at a time to set multiple channels to unity at once.

 

 

ALT + NEXT

Scrolls and activates the previous cue in the cue list.

 

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Table of Contents

Question:   Answer: CLR Functions: ALT + CLR Functions: Other ALT Button Functions:

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