User Guide V1.
IMPORTANT Please read this manual carefully before using your mixer for the first time.
Contents IMPORTANT SAFETY INSTRUCTIONS 5 SAFETY SYMBOL GUIDE 7 INTRODUCTION 8 Si EXPRESSION KEY FEATURES 9 Si EXPRESSION CONTROL SURFACE AND CONNECTOR OVERVIEW 10 WIRING UP 11 ASSIGNABLE CHANNEL STRIP 14 INPUT SECTION 14 GATE SECTION 15 COMPRESSOR SECTION: 15 PARAMETRIC EQ SECTION 16 OUT SECTION: 16 AUDIO INTERROGATE 17 POWER METERS AND MONITORS 18 TOUCH SCREEN ENCODERS AND BUTTONS 18 LEXICON™ INTERFACE 19 TOTEM™ (THE ONE TOUCH EASY MIX) KEYS 20 GLOBAL MODE ENCODERS AND FUN
FADER SETUP 39 INSERT 41 SOLO MENU & SOLO SYSTEMS 42 OSC MENU 43 MONITOR MENU 44 INPUTS MENU 45 OUTPUTS MENU 47 CLEAR 49 PATCHING AND FADER LAYERS 50 PATCHING 52 CUE LIST 55 EDIT CUE 55 MIDI 56 HIQNET™ 57 OPTION CARD SLOTS 57 HEADPHONE OUT & MONITORING 58 POWER OFF 59 SOFTWARE UPDATES 59 RESET TO FACTORY DEFAULT 59 USING YOUR Si EXPRESSION CONSOLE 60 MIXING TO MAIN L&R BUSES 62 MIXING TO AUX MIX BUSES 62 MIXING TO FX BUSES 63 MIXING TO MATRIX BUSES 63 QUICK HI
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 amplifiers) that produce heat. Do not defeat the safety purpose of a polarised or grounding type plug.
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.
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 flash 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 sufficient magnitude to constitute a risk of electric shock to persons.
INTRODUCTION Thank you for purchasing this Soundcraft Si EXPRESSION mixer. The Si EXPRESSION 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.
Si EXPRESSION KEY FEATURES The Si EXPRESSION series includes many unique technological and operational qualities which include: • MIC pre amps from the renowned Vi series. • Soundcraft 4-band EQ on all inputs and outputs. ™ • Fader Glow illumination on all faders. ™ • BSS Graphic EQ on all bus and matrix outputs. • Independent Centre/Mono bus. ™ • Quad Lexicon FX processors. ™ • tOTEM (The One Touch Easy Mix) system that instantly sets the console surface as you need it to create mixes quickly and easily.
Si EXPRESSION Control Surface and Connector Overview Si EXPRESSION Front Panel Si EXPRESSION 2 shown: Assignable Channel Strip (ACS) Meters, Monitors USB & Power Colour LCD Touch Screen Lexicon FX Controller tOTEM Fader Follow keys Global Mode switches and encoders Cue Control Master Faders and associated controls Main channel or mix master faders, meters and associated controls Phones socket under faders Mute masters plus MUTE & setup key.
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.
Aux Outputs Group Outputs Line Outputs Line Outputs 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.
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.
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.
GATE section 1. GATE ATTACK & RELEASE: indicates and adjusts the attack and release times of the gate. 2 2. GATE SC HPF/LPF: indicates & adjusts the high pass and low pass filters of the gate side chain to allow more accurate gating of signals. 1 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 gate opening/closing. 3 4 6 5 5.
PARAMETRIC EQ section 1. GAIN: indicates and adjusts the dB gain or cut in each of the filters; the centre red LED will light when the gain is 0dB. HF and LF bands operate as shelf filters whilst HI MID and LO MID bands operate in bell mode to provide a simple but powerful EQ. 2. FREQuency: indicates and adjusts the centre or turn-over frequency at which the filters operate. 1 3. ‘Q’: indicates and adjusts the width of the filters operating in bell mode. 4.
AUDIO INTERROGATE The Si EXPRESSION offers a quick and convenient method for checking and in many cases changing the status of many parameters, this is known as ‘interrogate’. Example #1 – To check the status of the LR routing switch from inputs to the main LR bus: a. Select a fader bank that includes inputs. b. Press and hold the LR routing key. c. The SELect keys on any channels routed to LR will light. d.
POWER METERS AND MONITORS 1 3 2 6 4 5 1. 12V LAMP OUT: Connector for LED or similar console light For use with 12v LED lights of under 100mA only! The lamps supplied by Soundcraft incorporate a dimming switch on the lamp itself. 2. USB: Insert a USB key for loading and backup of shows, software updates and similar.. 3.
LEXICONTM INTERFACE 5 4 2 1 3 1. FX key: press to open the Lexicon menu pages. 2. Lexicon encoders (x4): used to adjust the parameters within an effect. The encoders are context dependent upon what is shown on the touch screen at any given time. 3. TAP keys (x4): used to set the tempo of any of the patch using delays/measures; the keys flash with the set tempo. 4.
tOTEM™ (the One Touch Easy Mix) keys These keys place the console into ‘MIX’ mode allowing quick & easy mixing from Channels to Buses, Channels to FX or Buses to Matrix. Pressing any key triggers a sequence of events that re-configure the control surface and console monitoring system to the optimum layout for the desired/required function. NOTE: If selecting a tOTEM key whist there are no contributing channels or buses on the active layer the surface will appear 'blank' — this is correct.
Global Mode Encoders and Functions 1 2 3 The Global Mode encoders offer control of a key parameter across all channels or buses currently active on the surface: 1. GLOBAL ‘GAIN/TRIM’ key: press to make all the encoders function as the input GAIN (or TRIM for line & digital sources) for all the channels on the currently active fader layer. 2. NOTE: This key has no function in BUS or MATRIX modes. 3.
CUE Control — see also CUE LIST 1. CUE LIST key: press when lit to bring the CUE LIST menu to the touch screen. 1 2 3 4 2. STORE key: press to STORE a new cue at the end of the use list. NOTE: Pressing and Holding ALT, then pressing STORE will insert a new cue after the current cue. NOTE: Cues are stored with the default name ‘Unnamed Snapshot n’ where ‘n’ is a count of how many cues exist rather than its position in the cue list. 3.
ALT KEY ALT is a modifier key used by the following functions: FADER LAYERS A/B/C/D CLR (CLeaR function) CUE CONTROL MIXING to AUX BUSES MIXING to MATRIX BUSES Refer to these sections for detail on the operation and use. CLR & SOLO CLR Keys – see also clear 1. CLR key: used to reset channels, buses or groups of parameters to their factory defaults as follows: • CLR + channel or bus SELect will reset all audio 1 parameters within that channel or bus. to the factory defaults.
MUTE & MUTE MASTER Keys 1 1. MUTE key: press this key to toggle in/out of mute setup mode; the key has no function on its own and requires the selection of one of the mute masters 1-4 to indicate which of the mute masters you are going to configure. 2. MUTE MASTERS 1-4: while mute master setup is active these keys define which mute master you are setting assignments for, when not in MUTE SETUP the keys act as the mute masters.. 2 Setting and using mute masters: a.
2 3 MASTER LR FADER AND Associated Keys 1. MASTER LR fader: sets the overall level of the main Left & Right bus out. 2. MASTER LR ON key: toggles the main left and right bus ON/OFF. 3. MASTER SELect key: assigns (SELects) the ACS to the main left and right buses. 1 2 3 MONO/SEL FADER AND Associated Keys 1. MONO/SEL fader: sets the overall level of the MONO bus out unless:: • FADER FOLLOW 1-14 or MTX1-4 active - Fader is the master level for MIX / MTX ‘n’..
Fader Layer Keys Fader Layer Keys change the function of the faders to the left of the master faders: 1. A: Layer ‘A’, nominally inputs. 1 2. B: Layer ‘B’, nominally inputs. 2 3. C: Layer ‘C’, nominally bus masters. 4. D: Layer ‘D’, nominally Matrix Masters. 3 5. GEQ LO: The lower half of the GEQ. 6. GEQ HI: The upper half of the GEQ. NOTE: The GEQ pages are only available when an audio master fader is SELected.
Channel Faders and Associated Keys & Displays 1 2 4 3 5 6 7 1. Global Mode Encoder & Display – See GLOBAL MODE for more detail on this function. 2. Level Meter: indicates audio level in the channel or mix bus assigned to the fader. 3. Gain Reduction Meter: indicates gain reduction in the channel or mix bus assigned to the fader. 4. Gate Closed Indicator: Indicates the gate is closed in the input channel assigned to the fader. 5.
GEQ The Si EXPRESSION features a 28 band Graphic EQ on every mix, matrix and main master; having a GEQ on every bus means there is no need to ‘patch’ the GEQ, just enable it when required with no risk of running out of DSP. The GEQ function is available whenever an audio mix master is SELected, at all other times the GEQ keys will have no function.
LEXICONTM FX The Si EXPRESSION features four amazing Lexicon FX processors, each processor has it’s own dedicated bus and up to four stereo input channels may be assigned as the FX Returns; The selected FX processor The active patch The current page Lexicon Control: The value of the parameter a. Press the FX key to open the LCD page on the main Lexicon Menu allowing selection of an FX processor, changing of patch type and adjustment of parameters within the patch.
Function Focus Function Focus is a feature introduced on the Soundcraft Si Compact brought into the Si EXPRESSION by popular demand allowing pinpoint adjustment of any controls and settings. Whenever any active control on the surface is adjusted the appropriate function focus window opens on the LCD detailing the control you are adjusting, its name, and absolute value, additionally the function focus displays information about other associated controls and the name of the channel you are adjusting.
MAIN LCD SCREENS The Soundcraft Si EXPRESSION has such a versatile control surface that the colour touch screen is never required for mixing and is employed only for editing parameters like naming, channel setup and patching. Typical main MENU screen & associated controls: 1. Title Bar – Name of the active cue on the console. 2. MENU key: Returns to main MENU page, or 'back-up' one level if in a sub menu or screen such as QWERTY or PATCHING within the INPUTS or OUTPUTS page.
NEW SHOW: Invokes the creation of a new show. A new show deletes all cues and their associated events but retains names, audio settings, patches and similar since there is a high probability these will be re-used in the ‘new show’. The system will provide a warning the action will overwrite the current show and allows the action to be aborted. LOAD: Invokes loading of a new show from the internal Multi-Media Card (MMC-SD Card) or USB key if installed.
EDIT SHOW – Global Recall Isolate: Prevents the automation recalling isolated parameters (or groups of parameters) when a cue is replayed; scroll to the desired list item, press the encoder and select Isolate.
Network: Information and settings regarding Ethernet connectivity: • MAC Address – Displays MAC address of console, cannot be edited. • IP Address Resolution – Toggles between MANUAL or DHCP for setting the console IP address. • IP Address – Allows manual setting of the IP address. • Subnet Mask – Allows manual setting of the subnet mask. NOTE: Address and Subnet can only be edited in MANUAL mode. NOTE: Console must be rebooted for IP address change to take effect.
COPY & PASTE This facility allows almost any processing section to be copied easily and quickly from a channel or bus and pasted to another channel or bus. NOTE: The clipboard captures the state of an item at the point COPY & PASTE mode is activated or SELect is changed; changes to the SELected source channel will not be updated to the clipboard unless you re-SELect that channel/bus/contribution etc.
To select a single item such as EQ press and hold the EQ icon to toggle all other items off. To paste the clipboard contents to another channel or bus press and hold the PASTE button while pressing the SEL keys of the desired destination channels. Copy sends from all channels to bus’n’: Pressing COPY & PASTE while in FOLLOW mode or changing to FOLLOW mode while in COPY & PASTE will copy to the clipboard bus send levels and ON/OFF from all channels to bus ‘n’.
SECURITY This facility allows some or all functions of the console to be locked preventing accidental or malicious misuse. All console settings may be easily locked at any time by pressing the LOCK button in the SECURITY menu. To unlock a console a user must log-in; enter the SECURITY menu, use the scroll/ adjust encoder to select a user, ‘click’ to select then enter the password for that selected user. By default there is only one user, the administrator, with default password of: password (lower case).
PREFS (USER PREFERENCES) This menu allows certain ‘operational characteristics’ of the console to be edited. Parameters that may be adjusted are: • LED brightness – brightness of meters and encoder roundels • BUTON brightness – brightness of LEDs behind rubber key buttons • FaderGlow™ brightness – brightness of FaderGlow™ bars • Screen brightness – brightness of LCD backlight • D.O.G.S. (Direct Out Gain Stabiliser) – Sets D.O.G.S. ON/OFF. See D.O.G.S. for more details of this function. D.O.G.S. D.O.G.S.
FADER SETUP The fader setup provides a mean to define which channels (or buses) appear on which faders of which layers. This feature allows almost any channel or mix master controller fader to be placed on any layer, it is accessed from the FADER SETUP menu; there are essentially two elements to this, making new assignments and moving assignments. . Making a new assignment or changing a current assignment in the SELected slot.
Moving assignments on the active layer. There are two types of functions that assist in re-ordering faders on a layer INSERT BLANK and SHIFT each with a << (left) or >> (right) option, these functions are similar but subtly different. • INSERT BLANK will insert a blank (unassigned) fader in the SELected slot and move all other assignments left (right). • SHIFT allows an assigned fader to be moved up (down) provided the adjacent slot is unassigned.
INSERT Four insert patches are available, inserts are assignable to: • Mono and Stereo inputs - Pre EQ • Mixes 1-14 – Pre EQ, Post EQ or Post-fade • LR, Mono and Matrix 1-4 - Pre EQ, Post EQ The inserts are configured from the INSERT SETUP button found on the INSERT screen. For insert sends, any line out or digital out channel may be used and for insert returns any line in or digital input may be used; once .
SOLO MENU & SOLO Systems Home screen displays all SOLO options available on the system.
OSC MENU Oscillator home screen displays all settings and parameters concerned with the oscillator function. ROUTE TO MIX/MTX: Enables routing of the oscillator to individual mix bus; the actual routing to any given mix is enabled/disabled by the aux and matrix mix SOLO keys. Route to all: Enables routing of the oscillator to all aux and matrix mixes.
MONITOR MENU The MONITOR menu provides information to all parameters and functions concerning the monitor system and outputs. L&R monitor Speakers: Enables or disables the Monitor Out patch. Mono Check: Creates a mono sum of the signal in the monitors. Delay: Enables or disables the output delay to the monitor output patch. Delay Time: Adjusts the delay time applied to the monitor outputs.
INPUTS MENU The INPUTS menu provides information and access to all parameters and functions concerning system inputs. NOTE: The INPUTS button is greyed-out and not accessible unless a fader assigned as an input is SELected.  Input Name: Isolate: The name of the currently SELected input; press the SCROLL/ADJUST encoder to access the QWERTY keyboard to edit the name. Isolates the input from automation playback. NOTE: When isolated the channel settings are still stored when a cue is stored or updated.
Input Patch: Displays the source patched to the channel; see PATCHING for details of the system patching functionality. Direct Out Patch: Displays the destination patch of the channel direct out function; see PATCHING for details of the system patching functionality. Channel Sends Post-Pre: It is possible to over-ride the pre/post fade settings imposed by the bus masters on a per channel basis; click using the scroll/adjust encoder to open the dialogue options of Cancel, All Post or All Pre.
OUTPUTS MENU The OUTPUTS menu provides information to all parameters and functions concerning system buses and outputs. NOTE: The OUTPUTS button is greyed-out and not accessible unless a bus is SELected.  Mix Name: The name of the currently SELected mix bus; press the scroll/adjust encoder to access the QWERTY keyboard to edit the name Isolate: Isolates the mix from automation playback. NOTE: When isolated the channel settings are still stored when a cue is updated.
Pre Fader Source*: Sets the pre fader send from the channels to a mix as either Pre or Post the input channel EQ.  Patch 01 Left, Patch 01 Right, Patch 02 left, Patch 02 right: Displays the destinations(s) patched to the mix outputs; see PATCHING for details of the system patching functionality. NOTE: ‘Right’ options greyed out and unavailable on mono mix and matrix buses. *Not Matrix bus types. 48 Soundcraft Si Expression User Guide V1.
CLEAR The CLEAR facility allows channels, buses or logical groups of channels to be reset to their factory defaults.
Patching and Fader Layers The fader layers on Si EXPRESSION are arranged in a simple and logical form, by default the fader layers are as follows: • A: Nominally first bank of mono channels (1-14 Si EXPRESSION 1, 1-22 Si EXPRESSION 2, 1-30 Si EXPRESSION 3). • : Nominally additional mono channels plus six stereo channels (15-22 plus stereo 1-2 and FX1-4 Si EXPRESSION 1, 23-38 plus stereo 1-2 and FX 1-4 Si EXPRESSION 2, 31-54 plus stereo 1-2 and FX 1-4 Si EXPRESSION 3).
Si EXPRESSION Output Patching & Layers: As all Si EXPRESSION models offer the same level of output processing and number of physical output all models have almost identical Output Layers & Patching systems: • MIXES 1-14 > Fader Layer C faders 1-14 > Analogue Line Out 1-14. . • MTX 1-4 > Fader Layer D faders 1-4 > Not Assigned. • Main L&R > Master L&R Fader > Analogue Line Out 15-16. • MONO > MONO/SEL Fader > Not Assigned.
Patching The patching system on the Si EXPRESSION allows almost any source to feed any channel and any bus to feed any output; the following functionality is available: • Input Patch — Source for an input channel, selected from the INPUTS menu • Direct Out Patch — Destination for a channel direct out, selected from the INPUTS menu • Bus Patch (x2) — Destination for a bus out, selected from the OUTPUTS menu • Oscillator Patch — Destination for a oscillator out, selected from the OSC menu • Monitor P
Setting or Changing the Direct Out Patch The DIRect OUT PATCH screen shows the current direct output patch with an orange ‘tick’ other outputs that are in use have a gray ‘tick’ whilst unused patches have no ‘tick’ (in this case from channel name Bass DI which is channel 1 on the console to analogue output 1). To change to another destination simply touch the icon or browse alternative destinations using the SCROLL/ ADJUST encoder or left/right (< >) arrows on the touch screen.
Setting Oscillator and Monitor Patches It is possible to change other output patches in the system from within the appropriate MENU: • OSC: Oscillator re-patching is initiated from the OSC menu; the method is as for bus output patches however the oscillator may only be patched to one destination.
CUE LIST The CUE LIST key is a short-cut to the cue list view offering an overview of all stored cues in the current show, the following information is displayed: • 001 – Position in cue list position, this number cannot be edited. • Unnamed Snapshot ‘n’ – The default name of a cue where ‘n’ indicates it is the ‘nth’ cue created. The default name can be changed from the EDIT CUE button. • Midi icon – When lit blue indicates a midi event is assigned to the cue, see MIDI.
MIDI As part of the cue replay function Si EXPRESSION can send MIDI messages when a cue is replayed to trigger events in other systems or replay a cue in response to an incoming MIDI message. Set-up for the MIDI function is from within the CUE LIST, scroll to the cue in which you wish the MIDI event to happen, press the EDIT CUE button then use the scroll/adjust encoder to select and edit the parameters: NOTE: If MIDI Program Change is set On, the MIDI icon in the Cue List view will be lit blue.
HiQNet™ As part of the cue replay function Si EXPRESSION can send HiQnet messages when a cue is replayed to trigger events in a HiQnet system. Set-up for the HiQnet function is from within the CUE LIST, scroll to the cue in which you wish the HiQnet event to happen and press the EDIT CUE button: • Venue Recall – Set On or Off to enable or disable sending of HiQnet Venue Recall preset messages when the cue is replayed. • Venue Number – Sets the HiQnet Venue Number that is sent; range is 1- 65535.
Headphone Out & Monitoring The Si EXPRESSION features a comprehensive monitoring system. The active monitor signal is always available on the headphone output (located below the armrest near fader 1) with level controlled by the MON LEVEL encoder however the monitor signal may also be patched in parallel to other outputs on the console, see PATCHING.
POWER OFF The Si EXPRESSION incorporates a safety feature to prevent the power ‘accidently’ being turned off. To shut down the console: a. Press and hold the POWER key for ~2 seconds, the power light will flash orange. b. To confirm the shut down press the POWER key again whilst the light is flashing. If the confirmation is not received within ~5 seconds the command is cancelled and the POWER key reverts to solid green.
USING YOUR Si EXPRESSION CONSOLE The final output from your sound system can only ever be as good as the weakest link in the chain, and especially important is the quality of the source signal because this is the starting point of the chain. Just as you need to become familiar with the control functions of your mixer, so you must recognise the importance of correct choice of inputs, microphone placement and input channel settings.
Note: The initial settings should only be regarded as a starting point for your mix. It is important to remember that many factors affect the sound during a live performance, for instance the size of the audience! You are now ready to start building the mix and this should be done progressively, listening carefully for each component in the mix and watching the meters for any hint of overload.
Mixing to Main L&R Buses To create a simple mix to the Main L&R outputs: 1. Connect your inputs to the Mic/Line inputs on the console. 2. Connect the PA to Analogue Outputs 15 & 16. 3. Connect headphones to the socket under the armrest. 4. Adjust the gain to achieve a ‘good’ level on each channel, as a guide the -12dB indicator should be on most of the time with only the most occasional ‘flickering’ of the 0dB led. 5.
Mixing to FX Buses To create a simple mix to FX Processor 1: NOTE: This function may only be enabled if an FX processor is patched to a stereo input; this is achieved from the PATCH function in the inputs window. 1. Select fader bank A. 2. Press the FX1 follow key; notice the input faders have changed colour and position as they are now your sends from the input channels TO FX Processor 1 whilst the ON keys are now the routing ON/OFF from the channel to the FX bus.
QUICK HINTS AND TIPS Full details of all functions are provided in the user guide if needed, but the following bullets cover some other common functions. • Snapshots — Press the STORE key to create a snapshot, the CUE LIST key opens the list of snapshots where you can select the next cue to recall and, amongst other things, edit the cue name. • Home Page — Pressing the MENU key will return the touch screen to the home page.
Word Clock Si EXPRESSION consoles can be set as Word Clock Slave or Master. The status is set from the Clocking option in the SYSTEM menu. When set to EXTernal the console will attempt to clock from incoming word clock, if clock is detected the console will lock to with a CLOCK icon displayed on the title bar. If there is no valid signal the icon is shown with an exclamation mark and the console will run from internal clock until external clock returns.
WEIGHTS & DIMENSIONS Height Width Depth Weight Si EXPRESSION 1: Gross (in carton) Net 250mm (9.8") 169mm (6.7") 538mm (21.2") 483mm (19.0") 635mm (25.0") 520mm (20.5") 14.1kg (31.0lbs) 11.0kg (24.2lbs) Si EXPRESSION 2: Gross (in carton) Net 250mm (9.8") 169mm (6.7") 810mm (31.9") 716mm (28.2") 635mm (25") 520mm (20.5") 19.5kg (43.1lbs) 15.5kg (34.1lbs) Si EXPRESSION 3: Gross (in carton) Net 250mm (9.8") 169mm (6.7") 1022mm (40.2") 928mm (36.5") 635mm (25.0") 520mm (20.5") 25.1kg (55.
Si EXPRESSION 2 Si EXPRESSION 3 Soundcraft Si Expression User Guide V1.
BLOCK DIAGRAMS AUX To GEQ From GEQ HPF High Pass Filter ROUTING MIX & MATRIX OUTPUT To GEQ From GEQ To GEQ From GEQ 68 Soundcraft Si Expression User Guide V1.
BLOCK DIAGRAMS MONO INPUT Metering (Pre) Direct O/P Pre Direct O/P Post Phase Invert Trim From ADC Under/Over Threshold Gain Reduction Gate Comp High-pass Filter Delay Threshold Attack Hold Release Depth To Assignable Insert Patching To DAC From ADC Threshold Ratio Attack Release Gain Solo L Solo R PFL Solo AFL Solo Main Mix M L R EQ 1 Aux/FX 2. . . . . . .
Si EXPRESSION Typical Specifications Frequency Response Mic / Line Input to any Output T.H.D. Mic Sensitivity -30dBu Noise Residual noise Mic Input E.I.N. (maximum gain) Mix noise, masters at unity 1 input to mix at unity gain CMRR mic @1KHz (max gain) Crosstalk (@ 1kHz) Channel ON attenuation Channel Fader attenuation Mic – Mic Line – Line Input Gain Mic Gain Line Trim < 0.
Digital I/O AES Sample rate converter range 8KHz – 200KHz External Word Clock In range 48KHz +/-7Hz (internal systems), +/-3Hz with stageboxes. Word clock out jitter +/- 7ns Analogue out for 0dBfs +21.
GLOSSARY AFL After-fade listen: a function that allows the operator to monitor the post-fade signal in a channel independently of the main mix. AUXiliary send An output from the console comprising a mix of signals from channels derived independently of the main stereo mix. Balance The relative levels of the left and right channels of a stereo signal. Balanced A method of audio connection which ‘balances’ the wanted signal between two wires, these wires also have a screen which carries no signal.
PFL Pre-fade listen: a function that allows the operator to monitor the pre-fade signal in a channel independently of the main mix. Phase A term used to describe the relationship of two audio signals. In-phase signals reinforce each other, out-of-phase signals result in cancellation. Phase is a measurement of relative displacement between two waves of identical frequency. Polarity A term used to describe the orientation of the positive and negative poles of an audio connection.
WARRANTY 1 Soundcraft is a trading division of Harman International Industries Ltd . End User means the person who first puts the equipment into regular operation. Dealer means the person other than Soundcraft (if any) from whom the End User purchased the Equipment, provided such a person is authorised for this purpose by Soundcraft or its accredited Distributor. Equipment means the equipment supplied with this manual.
APPENDIX A To enable the console to begin booting automatically when AC power is applied, the boot jumper must be fitted to the EMMA YOTTA processor; the jumper is included in the console with the quick start guide. The jumper is fitted in the RH position as shown below. NOTE: As this procedure requires opening the console the work must only be carried out by an authorized service centre to avoid invalidating the warranty. Soundcraft Si Expression User Guide V1.
® by HARMAN Soundcraft Harman International Industries Ltd Cranborne House Cranborne Road Potters Bar Herts. EN6 3JN United Kingdom +44 (0)1707 665000 www.soundcraft.
