Soundcraft SI COMPACT USER GUIDE

by HARMAN

User Guide

®

2

Soundcraft Si Compact User Guide 0311

IMPORTANT

This equipment complies
with the EMC Directive
2004/108/EC and LVD
2006/95/EC

Please read this manual carefully before using

your mixer for the rst time.

This equipment complies with the EMC directive 2004/108/EC
and LVD 2006/95/EC

This product is approved to safety standards
IEC 60065:2005 +A1:2005
EN60065:2006 +A1:2006 + A1:2008
UL60065 7th Edition
CAN/CSA-E60065-03 +A1:2006

And EMC standards
EN55103-1: 2009 (E2)
EN55103-2: 2009 (E2)

Warning: Any modication or changes made to this device, unless explicitly approved by Harman, will
invalidate the authorisation of this device. Operation of an unauthorised device is prohibited under
Section 302 of the Communications act of 1934, as amended, and Subpart 1 of Part 2 of Chapter 47
of the Code of Federal Regulations.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

* Reorient or relocate the receiving antenna
* Increase the separation between the equipment and the receiver
* Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
* Consult the dealer or an experienced radio/TV technician for help

For further details contact

Harman International Industries Ltd, Cranborne House, Cranborne Road, Potters Bar, Hertfordshire EN6 3JN, UK
Telephone [phone] Fax [phone] email: [e-mail]

© Harman International Industries Ltd. 2011

All rights reserved. Parts of the design of this product may be protected by worldwide patents.
Part No. BD10.522000 Issue 0311

Soundcraft is a trading division of Harman International Industries Ltd. Information in this manual is subject to
change without notice and does not represent a commitment on the part of the vendor. Soundcraft shall not be
liable for any loss or damage whatsoever arising from the use of information or any error contained in this manual.

No part of this manual may be reproduced, stored in a retrieval system, or transmitted, in any form or by any
means, electronic, electrical, mechanical, optical, chemical, including photocopying and recording, for any
purpose without the express written permission of Soundcraft.

Harman International Industries Limited
Cranborne House, Cranborne Road, POTTERS BAR, Hertfordshire, EN6 3JN, UK

Tel: [phone]
Fax:[phone]
http://www.soundcraft.com

Soundcraft Si Compact User Guide 0311

3

Contents

IMPORTANT SAFETY INSTRUCTIONS 6

SAFETY SYMBOL GUIDE 8

INTRODUCTION 9

SI COMPACT KEY FEATURES 10

WIRING UP 11

Mic Input 11

Stereo Line Inputs 11

Insert Returns 11

AES Input: 11

Line Outputs 12

AES Output: 12

Insert Sends 12

Headphones 12

MIDI IN & OUT 12

Word Clock 12

HiQNet 12

Polarity (Phase) 13

Grounding and Shielding 13

SI COMPACT CONTROL SURFACE & CONNECTOR OvER-vIEW 14

Si Compact Front Panel 14

Si Compact Rear Panel 14

ASSIGNABLE CHANNEL STRIP (ACS) 15

INPUT/OUTPUT section 15

GATE section: 16

COMPRESSOR section: 16

Parametric EQ Section 17

OUT Section 17

INTERROGATE 18

POWER METERS & MONITORS 19

TOUCH SCREEN ENCODERS & BUTTONS 19

LExICONTM INTERFACE 20

tOTEM™ (THE ONE TOUCH EASY MIx) KEYS 21

GLOBAL MODE ENCODERS & FUNCTIONS: 22

CUE CONTROL 22

ALT KEY 23

CLR & SOLO CLR KEYS 23

MUTE SET-UP & MUTE MASTER KEYS 24

Setting Mute Groups: 24

MASTER L-R FADER & ASSOCIATED KEYS 25

MONO/SEL FADER & ASSOCIATED KEYS 25

FADER LAYER KEYS 26

FADER GLOW 26

CHANNEL FADERS & ASSOCIATED KEYS & DISPLAYS 27

GEQ 28

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Soundcraft Si Compact User Guide 0311

LEXICON FX 29

FUNCTION FOCUS 30

SCREENS 31

Show Menu: 31

New Show: 32

Export: 32

Edit Show - Show Name 32

Edit show - Global Recall Isolate 32

Reset I/O 32

SYSTEM MENU 33

INSERT MENU 33

SOLO MENU & SOLO SYSTEMS 34

OSC MENU 35

MONITOR MENU 36

INPUTS MENU 37

OUTPUS MENU 38

CLEAR 39

PATCHING & FADER LAYERS 40

Si Compact 16 Fader Input Patching & Layers: 40

Si Compact 24 Fader Input Patching & Layers: 40

Si Compact 32 Fader Input Patching & Layers: 40

Si Compact Output Patching & Layers: 41

PATCHING 42

Setting or changing the Input Patch 42

Setting or changing the Direct Out Patch 43

Setting or Changing the Bus or Master Output Patch 44

Setting Oscillator and Monitor Patches 44
Patching Replay Filtering 45

MIDI 46

HiQNET 47

OPTION CARD SLOT 47

HEADPHONE OUT & MONITORING 48

SOFTWARE UPDATES 49

RESET TO FACTORY DEFAULT 49

USING YOUR SI COMPACT CONSOLE 50

Microphone Placement 50

Initial Setup 50

MIXING TO MAIN L/R BUSES 52

MIXING TO AUX BUSES 52

MIXING TO FX BUSES 53

MIXING TO MATRIX BUSES 53

WEIGHTS & DIMENSIONS 54

TYPICAL SPECIFICATIONS 56

GLOSSARY 57

WARRANTY 59

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5

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions.

Keep these instructions.

Heed all warnings.

Follow all instructions.

Do not use this apparatus near water.

Clean only with a dry cloth.

Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.

Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including ampliers) that produce heat.

Do not defeat the safety purpose of a polarised or grounding type plug. A polarised plug
has two blades with one wider than the other. A grounding type plug has two blades and
a third grounding prong. The wide blade or the third prong are provided for your safety. If
the provided plug does not t into your outlet, consult an electrician for replacement of
the obsolete outlet

Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles and the point where they exit from the apparatus.

Only use attachments/accessories specied by the manufacturer.

Use only with the cart, stand, tripod, bracket or table specied by the manufacturer, or sold
with the apparatus. When a cart is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.

Unplug this apparatus during lightning storms or when unused for long periods of time.

Refer all servicing to qualied service personnel. Servicing is required when the apparatus
has been damaged in any way, such as power-supply cord or plug is damaged, liquid has
been spilled or objects fallen into the apparatus, the apparatus has been exposed to rain
or moisture, does not operate normally, or has been dropped.

NOTE: It is recommended that all maintenance and service on the product should be
carried out by Soundcraft or its authorised agents. Soundcraft cannot accept any
liability whatsoever for any loss or damage caused by service, maintenance or repair by
unauthorised personnel.
WARNING: To reduce the risk of re or electric shock, do not expose this apparatus to
rain or moisture.
Do not expose the apparatus to dripping or splashing and do not place objects lled
with liquids, such as vases, on the apparatus.
No naked ame sources, such as lighted candles, should be placed on the apparatus.
Ventilation should not be impeded by covering the ventilation openings with items such
as newspapers, table cloths, curtains etc.

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Soundcraft Si Compact User Guide 0311

THIS APPARATUS MUST BE EARTHED. Under no circumstances should the safety earth be
disconnected from the mains lead.

The mains supply disconnect device is the mains plug. It must remain accessible so as to
be readily operable when the apparatus is in use.

If any part of the mains cord set is damaged, the complete cord set should be replaced. The
following information is for reference only.
The wires in the mains lead are coloured in accordance with the following code:

Earth (Ground): Green and Yellow (US - Green/Yellow)
Neutral: Blue (US - White)

Live (Hot): Brown (US - Black)
As the colours of the wires in the mains lead may not correspond with the coloured markings
identifying the terminals in your plug, proceed as follows:

The wire which is coloured Green and Yellow must be connected to the terminal in the

plug which is marked with the letter E or by the earth symbol.

The wire which is coloured Blue must be connected to the terminal in the plug which

is marked with the letter N

The wire which is coloured Brown must be connected to the terminal in the plug which

is marked with the letter L

Ensure that these colour codes are followed carefully in the event of the plug being

changed

This unit is capable of operating over a range of mains voltages as marked on the rear panel.

NOTE: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to cor­rect the interference at his own expense.

This Class A digital apparatus meets the requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la Classe A respecte toutes les exigences du Règlement sur le
matériel brouilleur du Canada.

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FOR YOUR OWN SAFETY AND TO AVOID INVALIDATION OF THE WARRANTY
PLEASE READ THIS SECTION CAREFULLY.

SAFETY SYMBOL GUIDE

For your own safety and to avoid invalidation of the warranty all text marked with
these symbols should be read carefully.

WARNINGS

The lightning ash with arrowhead symbol, is intended to alert the
user to the presence of un-insulated “dangerous voltage” within the
product’s enclosure that may be of sufcient magnitude to constitute
a risk of electric shock to persons.

CAUTIONS

The exclamation point within an equilateral triangle is intended
to alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature accompanying
the appliance.

NOTES

Contain important information and useful tips on the operation of
your equipment.

HEADPHONES SAFETY WARNING

Contain important information and useful tips on headphone
outputs and monitoring levels.

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Soundcraft Si Compact User Guide 0311

INTRODUCTION

Thank you for purchasing a Soundcraft Si Compact mixer. The Soundcraft Si Compact
series is an incredibly versatile but simple to use digital console optimized for live sound
environments or other situations where fast and clear access to any control or parameter
is needed. Along with many new technologies and features, the Si Compact borrows much
from its larger predecessors the Si 1, 2 & 3 consoles and Soundcraft Vi series ensuring
high reliability, fantastic audio quality and a mature and comprehensive feature set.

Some of the technologies employed by the Si Compact include Mic amps from the
Vi1, classic Soundcraft EQ modeling, Lexicon® FX processors, BSS® Graphic EQ and
dynamics processors developed with world leaders in this eld DBX®. The SiCompact
series hardware and software systems have been designed to make mixing as simple
as possible and we believe you will nd this one of the quickest consoles to learn.

Owning a Soundcraft console brings you the expertise and support of one of the industry’s
leading manufacturers, and the results of over three decades of supporting some of the
biggest names in the business. Our knowledge has been attained through working in close
contact with leading professionals and institutes to bring you products designed to get the
best possible results from your mixing.

Built to the highest standards using quality components and surface mount technology,
the Soundcraft Si Compact is designed to be as easy to use as possible. We have spent
years researching the most efcient methods of control for two key reasons:

1) Engineers, musicians, writers and programmers all need to have very few interruptions
to the creative process; our products have been designed to be almost transparent,
allowing this process to breathe.

2) Whether performing or recording, time is a very expensive and rare commodity. Our
products have a user interface which is recognized by millions to be the industry
standard because of its efciency.

The sonic qualities of our products are exemplary and some of the same designs used
on our most expensive consoles are employed in the Si Compact, bringing you the great
Soundcraft quality in a small format console without compromise.

You will also be glad to know you have a one year warranty with your product from the
date of purchase. The Soundcraft Si Compact has been designed using the latest high-end
software based engineering packages. Every console from Soundcraft has been proven to
stand up to all the stress and rigours of modern day mixing environments.

The entire Soundcraft Si Compact range is manufactured using some of the most advanced
techniques in the world, from high density surface mount PCB technology, to computer
aided test equipment able to measure signals well outside the range of normal hearing.
As each console passes through to be quality checked before packing, there is also a
human listening station. Something we have learnt over the years is that the human touch
counts and only by using people can we ensure that the product meets the high demands
of the user.

NOTE: The packaging, in which your console arrived, forms part of the product and
must be retained for future use.

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Si COMPACT KEY FEATURES

The SI COMPACT series includes many unique technological and operational qualities
which include:

• MIC amps from the renowned Vi series

• Soundcraft parametric EQ on all inputs and outputs

• Fader Glow

• BSS Graphic EQ on all bus and matrix outputs

• Independent Centre/Mono bus

• Quad Lexicon FX processors

• tOTEM

need it to create mixes quickly and easily

• Lamp Outputs

• Dedicated Stereo Line inputs

• Native AES inputs & outputs

• 64x64 channel option card slot fully compatible with existing Si series consoles & cards

• HiQNet compatibility

• Ultra hard-wearing polycarbonate covered control surface resists wear & tear

• Four Insert Send/Return loops (24 & 32 fader versions)

• No layering of controls on the channel, all the controls are available all of the time

• Colour touch screen interface

TM

illumination on all faders

TM

(The One Touch Easy Mix) system that instantly sets the console surface as you

• Mute Groups

ADVICE FOR THOSE WHO PUSH THE BOUNDARIES

Although your new console will not output any sound until you feed it signals, it has the
capability to produce sounds which, when monitored through an amplier or headphones,
can damage hearing over time.

Please take care when working with your audio — if you are manipulating controls which
you don’t understand (which we all do when we are learning), make sure your monitors are
turned down. Remember that your ears are the most important tool of your trade, look after
them, and they will look after you.

Most importantly — don’t be afraid to experiment to nd out how each parameter affects the
sound — this will extend your creativity and help you to get the best from your mixer and the
most respect from your artists and audience.

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Soundcraft Si Compact User Guide 0311

WIRING UP

Mic Input

The MIC input accepts XLR-type connectors and is designed to suit a wide range
of BALANCED or UNBALANCED signals, whether from delicate vocals requiring
the best low-noise performance to drum kits to high level line sources.

DO NOT use UNBALANCED sources with the phantom power
switched on. The voltage on pins 2 & 3 of the XLR connector may
cause serious damage. BALANCED dynamic mics may normally be
used with phantom power switched on (contact your microphone
manufacturer for guidance)

Stereo Line Inputs

Accepts 3-pole 6.35mm (1/4") jacks, or 2-pole mono jacks which will
automatically ground the ‘cold’ input. Use these for input for sources such as
keyboards, drum machines, synths, CD players etc.
The input is BALANCED for low noise and immunity from interference, but you
can use UNBALANCED sources by wiring up the jacks as shown, although you
should then keep cable lengths as short as possible to minimize interference
pick-up on the cable.

NOTE: The ring must be grounded if the source is unbalanced

Insert Returns

Accepts 3-pole 6.35mm (1/4") jacks, or 2-pole mono jacks which will
automatically ground the ‘cold’ input. Use this when utilizing the Insert Send
& Return functions to allow insertion of special effect or dynamic processors.

AES Input:

This is a balanced 2-channel digital input using a single XLR wires as per the
balanced mic inputs. Although it is possible to use standard balanced audio
cable with AES signals it is recommended to use AES cable which has the correct
110R impedance.

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11

Line Outputs

Line Outputs

Aux Outputs

Group Outputs

From
Impedance-Balanced
Output

Signal +

Signal +

Screen

Screen

Signal -

Signal -

To External Device

To External Device

Experience has shown that sometimes it is better

not to connect screen at external device end.

Balanced Connection

Unbalanced Connection

From
Impedance-Balanced
Output

The 16 Line outputs are wired as shown and are fully balanced allowing long cable
runs to other equipment. If connecting to un-balanced destinations the Signal –
(cold) pin should be grounded.

AES Output:

This is a balanced 2-channel digital output using a single XLR wired as per the
balanced line outputs. Although it is possible to use standard balanced audio
cable with AES signals it is recommended to use AES cable which has the correct
110R impedance.

Insert Sends

Accepts 3-pole 6.35mm (1/4") jacks, or 2-pole mono jacks which will automatically
ground the ‘cold’ output. The connector is wired as shown.
Use this when utilizing the Insert Send & Return functions to allow insertion of
special effect or dynamic processors.

Headphones

The PHONES output is a 3-pole 6.35mm (1/4”) jack, wired as a stereo output
as shown, ideally for headphones of 32Ω or greater; 8Ω headphones are not
recommended. The headphone socket is found under the front edge, close to
fader 1.

MIDI IN & OUT
This is a standard 5-pin 1800 DIN connector conforming to the MIDI standard
as shown.

Word Clock

75ohm BNC coaxial connector used to lock the Si Compact to other digital
equipment.

HiQNet

Standard 100MB/s RJ45 connector used to connect the Si Compact to a LAN.

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Soundcraft Si Compact User Guide 0311

Polarity (Phase)

You will probably be familiar with the concept of polarity in electrical signals and this
is of particular importance to balanced audio signals. Just as a balanced signal is
highly effective at cancelling out unwanted interference, so two microphones picking
up the same signal can cancel out, or cause serious degradation of the signal if one
of the cables has the +ve and -ve wires reversed. This phase reversal can be a real
problem when microphones are close together and you should therefore always take
care to connect pins correctly when wiring audio cables.

Grounding and Shielding

For optimum performance use balanced connections where possible and ensure that
all signals are referenced to a solid, noise-free earthing point and that all signal cables
have their screens connected to ground. In some unusual circumstances, to avoid earth
or ground ‘loops’ ensure cable screens and other signal earths are connected to ground
only at their source and not at both ends.
If the use of unbalanced connections is unavoidable, you can minimise noise by
following these wiring guidelines:

• On INPUTS, unbalance at the source and use a twin screened cable as though it

were balanced.

• On OUTPUTS, connect the signal to the +ve output pin, and the ground of the output

device to -ve. If a twin screened cable is used, connect the screen only at the mixer end.

• Avoid running audio cables or placing audio equipment close to thyristor dimmer

units or power cables.

• Noise immunity is improved signicantly by the use of low impedance sources,

such as good quality professional microphones or the outputs from most modern
audio equipment. Avoid cheaper high impedance microphones, which may suffer
from interference over long cable runs, even with well-made cables.

Grounding and shielding is still seen as a black art, and the suggestions above are only
guidelines. If your system still hums, an earth/ground loop is the most likely cause.
Two examples of how an earth loop can occur are shown below.

Warning!
Under NO circumstances must the AC power mains earth be
disconnected from the mains lead.

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13

Si Compact Control Surface and Connector Overview

Si Compact Front Panel

Si Compact 24 fader shown:

Assignable Channel Strip (ACS)

Meters, Monitors
USB & Power

Colour LCD
Touch Screen

Lexicon FX
Controller

Buss Follow
(tOTEM) Keys

Global Mode
switches and
encoders

Cue Control

Master Faders
and associated
controls

Phones socket
under faders

Recallable Mic/Line Inputs x24 (32/16 on other size consoles)

Option card Slot

Main Channel or Bus
Master faders, meters
and associated controls

Si Compact Rear Panel

Si Compact 24 fader shown:

4x Analogue Inserts
(not 16 fader version)

HiQNet Ethernet Port

Mute Masters
and Faders
Bank controls

16x Analogue
Line Out

Word Clock and
MIDI In & OUT

AES IN & OUT Analogue Line In

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Soundcraft Si Compact User Guide 0311

Assignable Channel Strip (ACS)

The Assignable Channel Strip
(ACS) follows the currently
SELected channel or bus and
provides almost all of the
controls relating to the selected
channel or bus; it is broken
down in to small colour coded
sections making it easy to
identify control groups and
functions at a glance.

Unlike any other console in this class, there is a dedicated control for each
function therefore no ‘overlaying’ of controls is needed and each control has a
dedicated label and scale just as you would have found on an analogue mixer
Any encoders or functions that are not available/appropriate for a given mode will be un-lit
and have no function. Although the control surface has values marked against the encoders
the absolute value of any encoder will be shown on the touch screen provided by the Function
Focus feature.

*1

The GAIN/TRIM encoder on the ACS functions as GAIN control when controlling a mic

amp and TRIM for a LINE source whenever the ACS is selected to an input

*1

.

INPUT/OUTPUT SECTION

1. Meter: indicates the level in the channel or bus; if the source is

2. 48v key: toggles 48v Phantom Power ON/OFF if the SELected

1

3. PHASE key: toggles the phase of the channel or bus illuminates

2

3

4. GAIN: indicates and adjusts one of three parameters depending

MIC GAIN — If SELected to an input patched to a MIC input.
LINE TRIM — If SELected to an input patched to a LINE input, AES

4

5. HPF (High Pass Filter): indicates & adjusts the frequency of the

6. HPF key: toggles the High Pass Filter as IN or OUT; illuminates when

5

MONO only the left meter will indicate signal.

channel is connected to a MIC input; illuminates when 48v is ON.
Pressing and holding the key will activate INTERROGATE mode for
this function.

when PHASE is reversed. Pressing and holding the key will activate
INTERROGATE mode for this function.

upon the current active mode:

input or similar.

HPF (inputs only). Has no effect until the ‘HPF’ lter is switched IN.

HPF is IN. Press the key to toggle the lter IN/OUT. Pressing and
holding the key will activate INTERROGATE mode for this function.

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15

2

1

3

4

6

GATE SECTION

1. GATE ATTACK & RELEASE: indicates and adjusts the Attack
and Release Times of the Noise Gate.

2. GATE SC HPF/LPF: indicates & adjusts the High Pass and
Low Pass lters of the gate side chain to allow more accurate
gating of signals.

3. GATE DEPTH: indicates and adjusts how many dB of
attenuation the gate will apply when it is closed.

4. GATE THRESHOLD: indicates and adjusts the threshold of the
Noise Gate opening/closing.

5. OPEN/HOLD/CLOSED indicators: indicate the operation of

5

6. GATE key: toggles the GATE IN or OUT. Pressing and holding the key will activate
INTERROGATE mode for this function.

the gate:
OPEN = gate is passing signal and audio is above the threshold
HOLD = gate is passing signal but audio is below the threshold,
the gate will close soon
CLOSED = gate is NOT passing signal, audio is below the threshold

NOTE: Gate function is not available on output buses.

COMPRESSOR SECTION:

1. COMPRESSOR ATTACK & RELEASE: indicates and adjusts the

Attack and Release Times of the Compressor.

2. COMPRESSOR GAIN: indicates and adjusts the gain of

the compressor, is used to ‘make-up’ gain lost through
compression of the signal.

3. COMPRESSOR RATIO: indicates and adjusts the compression

ratio within the compressor.

4. COMPRESSOR THRESHOLD: indicates and adjusts the

threshold of the compressor.

5. GAIN REDUCTION INDICATOR: indicates the amount of dB

attenuation applied by the compressor.

6. COMP key: toggles the compressor IN or OUT. Pressing and

holding the key will activate INTERROGATE mode for this
function.

1

2

3

16

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Soundcraft Si Compact User Guide 0311

PARAMETRIC EQ SECTION

2

1

3

4

6

1. HF GAIN: indicates and adjusts the dB gain or
cut of the High Frequency shelf lters.

2. HF FREQuency: indicates and adjusts the
frequency at which the High Frequency shelf
lters operate.

3. Hi MID & LO MID GAIN: indicates and adjusts the
dB gain or cut of the Mid Frequency bell lters.

4. Hi MID & LO MID FREQuency: indicates
and adjusts the frequency at which the Mid
Frequency bell lters operate.

5. Hi MID & LO MID ‘Q’: indicates and adjusts the
width of the Mid Frequency bell lters.

6. LF GAIN: indicates and adjusts the dB gain or
cut of the Low Frequency shelf lters.

7. LF FREQuency: indicates and adjusts the

78

5

frequency at which the Low Frequency shelf
lters operate.

8. EQ key: toggles the EQ IN or OUT. Pressing and holding the key will activate INTERROGATE
mode for this function.

OUT SECTION:

1. DELAY: indicates and adjusts the delay applied to the channel
or bus; turn to ‘0’ (fully CCW) to turn the delay off.

2. PAN: indicates and adjusts the PAN (or BALANCE for stereo
sources) of the channel or bus routing to the main LR bus.

3. LR & MONO keys: toggles the routing of the channel or bus
to the main LR and MONO buses. Pressing and holding these
keys will activate INTERROGATE mode for the function.

1

2

3

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17

INTERROGATE

The Si Compact offers a quick and convenient method for checking and changing the status of
any given switch function in the ACS across many channels, this is known as ‘interrogate’.

Example #1 – To check the status of the LR routing switch from Inputs to the main LR bus:

1. While in fader bank IN A or IN B press and hold the LR routing key.

2. The SELect keys on any channels routed to LR will light.

3. While keeping the LR key pressed you may toggle the status of the LR routing on any channels
by pressing the SELect keys of the channels you wish to include/exclude from the routing.

NOTE: When entering interrogate mode the status of the switch you press and hold is not
changed.

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Soundcraft Si Compact User Guide 0311