Soundcraft EPM12 User's Guide

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USER GUIDE

Soundcraft EFX/EPM User Guide Issue 1210

User Guide

Soundcraft EFX/EPM User Guide Issue 1210

IMPORTANT

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:

EFX Models

IEC 60065: 2001 + AMD1:2005 EN60065: 2002 + AMD1:2006+A11:2008 UL6500 7th Edition: 2003 CAN/CSA-E60065-03

and EMC standards:

EN55103-1: 1996 (E2) EN55103-2: 1996 (E2)

EPM Models

For further details contact Harman International Industries Ltd. Cranborne House, Cranborne Road, Potters Bar, Hertfordshire, EN6 3JN UK email: soundcraft@harman.com

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: +44 (0)1707 665000

Fax: +44 (0)1707 660742 http://www.soundcraft.com E & OE.

Soundcraft EFX/EPM User Guide Issue 1210

Contents

SAFETY SYMBOL GUIDE...................................................................................................4

IMPORTANT SAFETY INSTRUCTIONS.............................................................................5

INTRODUCTION.............................................................................................7

OVERVIEW.................................................................................................8

THE 60-SECOND GUIDE - EFX............................................................................................8

THE 60-SECOND GUIDE - EPM.........................................................................................10

WIRING UP..........................................................................................................................12

BLOCK DIAGRAM - Soundcraft EFX...................................................................................16

BLOCK DIAGRAM - Soundcraft EPM..................................................................................17

MONO INPUT CHANNEL - EFX shown...............................................................................18

STEREO INPUT CHANNELS (EFX shown).........................................................................21

MASTER SECTION (EFX)...................................................................................................24

Lexicon® FX PROCESSOR OVERVIEW (EFX only)..........................................................27

FX OPERATION...................................................................................................................27

FX PROCESSOR CONTROLS (EFX only)..........................................................................28

REVERBS ...........................................................................................................................29

REVERB CONTROLS.........................................................................................................30

DELAYS...............................................................................................................................31

DELAY CONTROLS ............................................................................................................32

MODULATED EFFECTS......................................................................................................32

FACTORY RESET ...............................................................................................................34

EFFECTS DATA CHART (EFX only)....................................................................................35

USING YOUR EFX OR EPM CONSOLE.............................................................................36

APPLICATIONS....................................................................................................................38

GLOSSARY...........................................................................................................................42

TYPICAL CONNECTING LEADS.........................................................................................44

MARK-UP SHEETS - EFX...................................................................................................46

MARK-UP SHEETS - EPM..................................................................................................48

FITTING OPTIONAL RACKMOUNT EARS.........................................................................50

EPM/EFX TYPICAL SPECIFICATIONS...............................................................................52

WARRANTY.........................................................................................................................54

Soundcraft EFX/EPM User Guide Issue 1210

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 in-

tended to alert the user to the presence of important operat-

ing and maintenance (servicing) instructions in the literature

accompanying the appliance.

NOTES

Contain important information and useful tips on the opera-

tion of your equipment.

HEADPHONES SAFETY WARNING

Contain important information and useful tips on headphone

outputs and monitoring levels.

Recommended Headphone Impedance >= 150 Ohms.

Soundcraft EFX/EPM User Guide Issue 1210

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.

Soundcraft EFX/EPM User Guide Issue 1210

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. 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.

Soundcraft EFX/EPM User Guide Issue 1210

INTRODUCTION

Thank you for purchasing a Soundcraft EFX/EPM mixer. The EFX/EPM range is a most cost-effective mixing solution, bringing you all the features and performance that you expect from a Soundcraft product, at an extraordinarily low price. The packaging, in which your mixer arrived, forms part of the product and must be retained for future use. Owning a Soundcraft console brings you the expertise and support of one of the industry’s leading manufacturers, and the results of nearly 3 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 mixer 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 recognised by millions to be the

industry standard because of its efciency.

The sonic qualities of our products are exemplary - some of the same circuits which are used on our most expensive consoles are employed in the EFX and EPM, 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 mixer has been designed using the latest highend 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 mixer 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 you ensure the product meets the high demands of the user.

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.

Soundcraft EFX/EPM User Guide Issue 1210

OVERVIEW

BANK A

KARAOKE

To get you working as fast as possible, this manual begins with a 60-second guide. Here you can nd quick

information on any feature of the EFX console.

THE 60-SECOND GUIDE - EFX

1 MIC INPUT (XLR) Connect Microphones here. If you are using a condenser mic, ensure phantom

power is supplied by pressing the switch at the top of the master section.

WARNING: Do Not apply Phantom Power before connecting a

microphone.

2 LINE INPUT (¼” Jack) Connect Line level sources here, e.g. Synth, Drum Machine, DI etc. 3 INSERT POINT (¼” Jack) Connect Signal processors here, e.g. Compressor, Gate etc. 4 GAIN CONTROL Adjust this to increase or decrease the level of the incoming signal. 5 EQ STAGE Adjust these controls to change the signal tone (the character of the signal). 6 AUX 1 SEND Adjust this control to change the level of the signal to an artist’s monitors

(headphones/in-ear/stage monitors). Aux 1 is globally switchable pre/post fade.

7 FX SEND This control sets the level of the post-fade signal being sent to the FX bus;

from there it is routed to the FX processor.

8 PAN CONTROL Use this control to position the signal within the stereo eld. 9 MUTE SWITCH When this is pressed you will hear no signal from the channel (post-mute

signals).

10 PFL When pressed the signal will appear on the monitor and headphone outputs

- use this to monitor the post-EQ signal from the channel.

Soundcraft EFX/EPM User Guide Issue 1210

11 PEAK LED This is used to indicate that the signal is close to distorting (clipping) on a

specic channel.

12 INPUT CHANNEL FADER This is used to control the level fed to the Mix Bus and post-fade sends. 13 MIX OUTPUTS (XLR) & Connect these to your analogue recording device, or to your amplication MONO OUT (¼” Jack) system. 14 MIX INSERTS (¼” Jack) This is a pre-fade break in the signal path which can be used to feed a

dynamics or mastering device. The signal is sent from the tip of the jack plug and the return path comes back in on the ring of the jack plug.

15 MONITOR O/Ps (¼” Jack) These are used to feed your monitoring system. This can be directly connected

to powered monitors, or indirectly via an amplier to standard monitors.

16 MASTER FADERS These faders control the overall level of the mix outputs. 17 MAIN METERS These show the level of the mix outputs. When the PFL ACTIVE LED is lit, the

meters show the level of the selected PFL signal.

18 MONITOR CONTROL This controls the level of the signal sent to your monitoring system. 19 PHONES CONTROL This controls the level of the signal sent to the headphones jack socket. 20 AUX 1 OUTPUT (¼” Jack) This output can be used to send the channel signal to an artist’s monitors

(headphones/in-ear/stage monitors). It is switchable pre/post fade.

21 AUX CONTROL This switch globally switches the AUX1 feed on all the input modules to be

either pre or post-fade.

22 STEREO INPUTS (¼” Jack) These two inputs can be used to connect line level stereo inputs from key-

boards, sound modules, samplers, computer based audio cards etc. These inputs pass through a normal channel strip, with EQ, Auxes and a Balance control.

23 2-TRACK INPUTS Here you can connect the playback from your recording device. (RCA Phono) 24 2-TRACK CONTROLS Use these to control the 2 Track signal. The MONITOR switch sends the signal

to the monitor outputs and phones, whilst the TO MIX switch sends it to the main mix.

25 RECORD OUTPUTS You can connect these to the inputs of your recording device. (RCA Phono) 26 PHANTOM POWER Press this to switch the phantom power (48V) on for condenser microphones.

WARNING: Do Not apply Phantom Power before connecting a

microphone.

27 HEADPHONES (¼” Jack) Plug your headphones into this socket. Recommended headphones imped-

ance is 150 ohms or greater.

28 STEREO RETURN INPUTS This pair of inputs accept 3-pole ‘A’ gauge (TRS) jacks. Use these inputs for

sources such as keyboards, drum machines, synths or CDs. The inputs are BALANCED. Mono sources may be used by plugging into the left jack only.

29 STEREO RETURN CONTROL This control sets the level of signal routed to the main mix busses. There is

an associated PK LED to warn of signals which are too high.

30 FX BUS OUTPUT This output carries the signal from the FX bus. It could be used as a second

Aux Output if desired, if the FX Processor is not needed at the time. The FX sends on the inputs channels to the FX bus are always post-fade.

31 FOOTSWITCH CONNECTOR This is used by the FX Processor, see page 26. 32 LEXICON® FX PROCESSOR See the information starting on page 27

Soundcraft EFX/EPM User Guide Issue 1210

THE 60-SECOND GUIDE - EPM

1 MIC INPUT (XLR) Connect Microphones here. If you are using a condenser mic, ensure phantom

power is supplied by pressing the switch at the top of the master section.

WARNING: Do Not apply Phantom Power before connecting

a microphone.

2 LINE INPUT (¼” Jack) Connect Line level sources here, e.g. Synth, Drum Machine, DI etc. 3 INSERT POINT (¼” Jack) Connect Signal processors here, e.g. Compressor, Gate etc. 4 GAIN CONTROL Adjust this to increase or decrease the level of the incoming signal. 5 EQ STAGE Adjust these controls to change the signal tone (the character of the signal). 6 AUX 1/2 SENDS Adjust these controls to change the level of the signal to an artist’s monitors

(headphones/in-ear/stage monitors). Each Aux is globally switchable pre/ post fade.

7 PAN CONTROL Use this control to position the signal within the stereo eld. 8 MUTE SWITCH When this is pressed you will hear no signal from the channel (post-mute

signals).

9 PFL When pressed the signal will appear on the monitor and headphone outputs

- use this to monitor the post-EQ signal from the channel.

Soundcraft EFX/EPM User Guide Issue 1210

10 PEAK LED This is used to indicate that the signal is close to distorting (clipping) on a

specic channel.

11 INPUT CHANNEL FADER This is used to control the level fed to the Mix Bus and post-fade sends. 12 MIX OUTPUTS (XLR) & Connect these to your analogue recording device, or to your amplication MONO OUT (¼” Jack) system. 13 MIX INSERTS (¼” Jack) This is a pre-fade break in the signal path which can be used to feed a dy-

namics or mastering device. The signal is sent from the tip of the jack plug and the return path comes back in on the ring of the jack plug.

14 MONITOR O/Ps (¼” Jack) These are used to feed your monitoring system. This can be directly connected

to powered monitors, or indirectly via an amplier to standard monitors.

15 MASTER FADERS These faders control the overall level of the mix outputs. 16 MAIN METERS These show the level of the mix outputs. When the PFL ACTIVE LED is lit, the

meters show the level of the selected PFL signal.

17 MONITOR CONTROL This controls the level of the signal sent to your monitoring system. 18 PHONES CONTROL This controls the level of the signal sent to the headphones jack socket. 19 AUX OUTPUTS (¼” Jack) These outputs can be used to send the channel signal to an artist’s monitors

(headphones/in-ear/stage monitors). They are switchable pre/post fade.

20 AUX CONTROL These switches globally switch the AUX1 and AUX 2 feeds on all the input

modules to be either pre or post-fade.

21 STEREO INPUTS (¼” Jack) These two inputs can be used to connect line level stereo inputs from key-

boards, sound modules, samplers, computer based audio cards etc. These inputs pass through a normal channel strip, with EQ, Auxes and a Balance control.

22 2-TRACK INPUTS (RCA Phono) 23 2-TRACK CONTROLS Use these to control the 2 Track signal. The MONITOR switch sends the signal

24 RECORD OUTPUTS You can connect these to the inputs of your recording device. (RCA Phono) 25 PHANTOM POWER Press this to switch the phantom power (48V) on for condenser microphones.

WARNING: Do Not apply Phantom Power before connecting a

Here you can connect the playback from your recording device.

to the monitor outputs and phones, whilst the TO MIX switch sends it to the main mix.

microphone.

26 HEADPHONES (¼” Jack) Plug your headphones into this socket. Recommended headphones

impedance is 150 ohms or greater.

Soundcraft EFX/EPM User Guide Issue 1210

WIRING UP

Mic Input

The MIC input accepts XLR-type connectors and is designed to suit a wide range of BALANCED or UNBALANCED low-level signals, whether from delicate vocals requiring the best low-noise performance, or drum kits needing maximum headroom. Professional dynamic, condenser or ribbon mics are best because these will be LOW IMPEDANCE. While you can use low-cost HIGH IMPEDANCE mics, you do not get the same degree of immunity to interference on the microphone cable and as a result the level of background noise may be higher. If you turn the PHANTOM POWER on, the socket provides a suitable powering voltage for professional condenser mics.

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)

The input level is set using the input GAIN knob. The LINE input offers the same gain range as the MIC input, but at a higher input impedance, and is 20dB less sensitive. This is suitable for most line level sources.

WARNING !

Start with the input GAIN knob turned fully anticlockwise when

plugging high level sources into the LINE input to avoid overloading

the input channel or giving you a very loud surprise!

Line Input

Accepts 3-pole ‘A’ gauge jacks, or 2-pole mono jacks which will automatically ground the ‘cold’ input. Use this input for sources other than mics, such as keyboards, drum machines, synths, tape machines or DI boxes. 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 minimise interference pick-up on the cable. Note that the ring must be grounded if the source is unbalanced. Set the input level using the GAIN knob, starting with the knob turned fully anticlockwise. Unplug any MIC connection when using the LINE input.

Insert Point

The unbalanced, pre-EQ insert point is a break in the channel signal path, allowing limiters, compressors, special EQ or other signal processing units to be added in the signal path. The Insert is a 3-pole ‘A’ gauge jack socket which is normally bypassed. When a jack is inserted, the signal path is broken, just before the EQ section. The signal from the channel appears on the TIP of the plug and is returned on the RING, with the sleeve as a common ground. The Send may be tapped off as an alternative pre-fade, pre-EQ direct output if required, using a lead with tip and ring shorted together so that the signal path is not interrupted.

Soundcraft EFX/EPM User Guide Issue 1210

Stereo Inputs STEREO 1/2 and Stereo

These accept 3-pole ‘A’ gauge jacks, or 2-pole mono jacks which will automatically ground the ‘cold’ input. Use these inputs for sources such as keyboards, drum machines, synths, tape machines or as returns from processing units. 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 minimise interference pick-up on the cable. Note that the ring must be grounded if the source is unbalanced. Mono sources can be fed to both paths by plugging into the Left jack only.

Mix Inserts

The unbalanced, pre-fade Mix insert point is a break in the output signal path to allow the connection of, for example, a compressor/limiter or graphic equaliser. The Insert is a 3-pole ‘A’ gauge jack socket which is normally bypassed. When a jack is inserted, the signal path is broken, just before the mix fader. The mix signal appears on the TIP of the plug and is returned on the RING. A ‘Y’ lead may be required to connect to equipment with separate send and return jacks as shown below:

Mix Outputs

The MIX outputs are on XLR’s, wired as shown, and incorporate

impedance balancing, allowing long cable runs to balanced ampliers and

other equipment.

Aux & FX Bus Outputs

The Aux & FX Bus outputs are on 3-pole ‘A’ gauge jack sockets, wired as shown on the left, and are impedance-balanced, allowing long cable runs to

balanced ampliers and other equipment. Note EPM has 2 x AUX, EFX has 1 x AUX, 1 x FX.

Soundcraft EFX/EPM User Guide Issue 1210

Headphones

The PHONES output is a 3-pole ‘A’ gauge jack, wired as a stereo output as shown, ideally for headphones of 150Ω or greater. 8Ω headphones are not recommended.

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 that all 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.

Soundcraft EFX/EPM User Guide Issue 1210

PROBLEM SOLVING

Basic problem solving is within the scope of any user if a few basic rules are followed.

• Get to know the Block Diagram of your console (see page 16/17).

• Get to know what all controls and/or connections in the system are supposed

to do.

• Learn where to look for common trouble spots. The Block Diagram is a representative sketch of all the components of the console,

showing how they connect together and how the signal ows through the system. Once you have become familiar with the various component blocks you will nd the Block

Diagram is quite easy to follow and you will have gained a valuable understanding of the internal structure of the console.

Each component has a specic function and only by getting to know what each part is

supposed to do will you be able to tell if there is a genuine fault! Many “faults” are the result of incorrect connection or control settings which may have been overlooked. Basic Troubleshooting is a process of applying logical thought to the signal path through the console and tracking down the problem by elimination.

• Swap input connections to check that the source is really present. Check both Mic and Line inputs.

• Eliminate sections of the channel by using the insert point to re-route the signal to other inputs that are known to be working.

• Route channels to different outputs or to auxiliary sends to identify problems on the Master section.

• Compare a suspect channel with an adjacent channel which has been set up identically. Use PFL to monitor the signal in each section.

• Insert-point contact problems may be checked by using an insert bypass jack with tip and ring shorted together as shown below. If the signal appears when the jack is inserted it shows that there is a problem with the normalling contacts on the jack socket, caused by wear or damage, or often just dirt or dust. Keep a few in your gig tool box.

If in doubt please contact Soundcraft customer support.

PRODUCTS UNDER WARRANTY

UK customers should contact their local dealer. Customers outside the UK are requested to contact their territorial distributor who is able to offer support in the local time zone and language. Please see the distributor listings on our website (www.soundcraft.com) to locate your local distributor.

OUT-OF-WARRANTY PRODUCTS

For out-of-warranty consoles purchased in the United Kingdom, please contact the Customer Services Department (e-mail: soundcraft.csd@harman.com) at the factory in Potters Bar, Hertfordshire: Telephone +44 (0)1707 665000. For all other out-of-warranty consoles, please contact the appropriate territorial distributor. When mailing or faxing please remember to give as much information as possible. This should include your name, address and a daytime telephone number. Should

you experience any difculty please contact Customer Services Department (e-mail:

soundcraft.csd@harman.com)

Soundcraft EFX/EPM User Guide Issue 1210

BLOCK DIAGRAM - Soundcraft EFX

Soundcraft EFX/EPM User Guide Issue 1210

BLOCK DIAGRAM - Soundcraft EPM

Soundcraft EFX/EPM User Guide Issue 1210

MONO INPUT CHANNEL - EFX shown

1 Mic Input

The MIC input accepts XLR-type connectors and is designed to suit a wide range of BALANCED or UNBALANCED signals. Professional dynamic, condenser or ribbon mics are best because these will be LOW IMPEDANCE. You can use low-cost HIGH IMPEDANCE mics, but the level of background noise will be higher. If you turn the PHANTOM POWER on (top right-hand side of the mixer) the socket provides a suitable powering voltage for professional condenser mics.

ONLY connect condenser microphones with the +48V powering OFF,

and ONLY turn the +48V powering on or off with all output faders

DOWN, to prevent damage to the mixer or external devices.

TAKE CARE when using unbalanced sources, which may be damaged by the phantom power voltage on pins 2 & 3 of the XLR connector. Unplug any mics if you want to use the LINE Input. The input level is set using the GAIN knob.

2 Line Input

Accepts 3-pole ‘A’ gauge (TRS) jacks. Use this input for sources other than mics, such as keyboards, drum machines, synths, tape machines or DI’d guitars. The input is BALANCED for low noise and top quality from professional equipment, but you can use UNBALANCED sources by wiring up the jacks as shown below, although you should then keep cable lengths as short as possible. Unplug anything in the MIC input if you want to use this socket. Set the input level using the GAIN knob.

3 Insert Point

The Send may also be tapped off as an alternative pre-fade, pre-EQ direct output if required, using a lead with tip and ring shorted together so that the signal path is not interrupted (see below).

4 Gain

This knob sets how much of the source signal is sent to the rest of the mixer. Too high, and the signal will distort as it overloads the channel. Too low, and the level of any background hiss will be more noticeable and you may not be able to get enough signal level to the output of the mixer.

Soundcraft EFX/EPM User Guide Issue 1210

Note that some sound equipment, particularly that intended for domestic use, operates at a lower level (-10dBV) than professional equipment and will therefore need a higher gain setting to give the same output level. See “Initial Setup” on page 31 to learn how to set GAIN correctly.

5 Equaliser

The Equaliser (EQ) allows ne manipulation of the sound, particularly

to improve the sound in live PA applications where the original signal is often far from ideal and where slight boosting or cutting of particular voice frequencies can really make a difference to clarity. There are three sections giving the sort of control usually only found on much larger mixers. The EQ knobs can have a dramatic effect, so use them sparingly and listen carefully as you change any settings so that you get to know how they affect the sound.

HF EQ

Turn to the right to boost high (treble) frequencies above 12kHz by up to 15dB, adding crispness to cymbals, vocals and electronic instruments. Turn to the left to cut by up to 15dB, reducing hiss or excessive sibilance which can occur with certain types of microphone. Set the knob in the centre-detented position when not required.

MID EQ

There are two knobs which work together to form a SWEPT MID EQ. The lower knob provides 15dB of boost and cut, just like the HF EQ knob, but the frequency at which this occurs can be set by the upper knob over a range of 150Hz to 3.5kHz. This allows some truly creative improvement of the signal in live situations, because this mid band covers the range of most vocals. Listen carefully as you use these controls together to

nd how particular characteristics of a vocal signal can be enhanced or

reduced. Set the lower knob to the centre-detented position when not required.

LF EQ

Turn to the right to boost low (bass) frequencies below 80Hz by up to 15dB, adding warmth to vocals or extra punch to synths, guitars and drums. Turn to the left to cut low frequencies by up to 15dB for reducing hum, stage rumble or to improve a mushy sound. Set the knob to the centre-detented position when not required.

6 Aux 1 Send

This is used to set up a separate mix for FOLDBACK or recording, and the combination of each Aux Send is mixed to the Aux1 Output. For recording it is useful for the signal to fade up and down with the fader (this is called POST-FADE), but for Foldback or Monitor feeds it is important for the send to be independent of the fader (this is called PRE-FADE). AUX 1 SEND is globally switchable between pre and post-fade (see master section on page 24/25).

7 FX Send (EFX only)

This control sets the level of the post-fade signal being sent to the FX bus; from there it is routed to the FX processor.

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7 Aux 2 Send (EPM only)

AUX 2 SEND is globally switchable between pre and post-fade (see master section on page 24/25).

8 PAN

This control sets the amount of the channel signal feeding the Left and Right MIX buses, allowing you to move the source smoothly across the stereo image. When the control is turned fully left or right you are able to route the signal at unity gain to either left or right outputs individually.

9 MUTE

All outputs from the channel except inserts are on when the MUTE switch is released and muted when the switch is down, allowing levels to be pre-set before the signal is required.

10 INPUT CHANNEL FADER

The 60mm FADER, with a custom-designed law to give even smoother control of the overall signal level in the channel strip, allows precise balancing of the various source signals being mixed to the Master Section. You get most control when the input GAIN is set up correctly, giving full travel on the fader. See the “Initial Setup” section on page 36 for help in setting a suitable signal level.

11 PFL

When the latching PFL switch is pressed, the pre-fade pre-mute signal is fed to the headphones, control room output and meters, where it replaces the MIX. The PFL ACTIVE LED on the Master section illuminates to warn that a PFL is active. This is a useful way of listening to any required input signal without interrupting the main mix, for making adjustments or tracing problems. When PFL is pressed anywhere on the console, the Control Room outputs automatically switch from monitoring the Mix Outputs.

12 PEAK LED

This LED will light when the signal level approaches clipping at any of the three monitored points: a) PRE-EQ b) POST-EQ c) POST-FADE

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STEREO INPUT CHANNELS (EFX shown)

1 INPUTS STEREO 1/2

These inputs accept 3-pole ‘A’ gauge (TRS) jacks. Use these inputs for sources such as keyboards, drum machines, synths, tape machines or processing units. The inputs are BALANCED for low noise and top quality from professional equipment, but you can use UNBALANCED sources by wiring up the jacks as shown in the “Wiring it Up” section earlier in this manual, although you should then keep cable lengths as short as possible. Mono sources may be used by plugging into the left jack only.

2 GAIN

The GAIN control sets the level of the channel signal.

3 EQUALISER HF EQ

Turn to the right to boost high (treble) frequencies, adding crispness to percussion from drum machines, synths and electronic instruments. Turn to the left to cut these frequencies, reducing hiss or excessive brilliance. Set the knob in the centre-detented position when not required. The control has a shelving response giving 15dB of boost or cut at 12kHz.

MF EQ

Turn to the right to boost mid frequencies, turn to the left to cut these frequencies. The centre frquency of the MID EQ is 720Hz

LF EQ

Turn to the right to boost low (bass) frequencies, adding extra punch to synths, guitars and drums. Turn to the left to reduce hum, boominess or improve a mushy sound. Set the knob to the centre-detented position when not required. The control has a shelving response giving 15dB of boost or cut at 80Hz.

4 AUX 1 SEND

5 FX SEND (EFX only)

This control sets the level of the post-fade signal being sent to the FX bus; from there it is routed to the FX processor.

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5 AUX 2 SEND (EPM only)

This is used to set up a separate mix for FOLDBACK or recording, and the combination of each Aux Send is mixed to the Aux 2 Output. For recording it is useful for the signal to fade up and down with the fader (this is called POST-FADE), but for Foldback or Monitor feeds it is important for the send to be independent of the fader (this is called PRE-FADE). AUX 2 SEND is globally switchable between pre and post-fade (see master section on page 24/25). The send pot is fed with a mono sum of the L & R signals.

6 BALANCE

This control sets the amount of the channel signal feeding the Left and Right MIX buses, allowing you to balance the source in the stereo image. When the control is turned fully right or left you feed only that side of the signal to the mix. Unity gain is provided by the control in the centredetented position.

7 MUTE

All outputs from the channel are enabled when the MUTE switch is released and muted when the switch is down.

8 FADER

The 60mm FADER gives you smooth control of the overall signal level in the channel strip, allowing precise balancing of the various source signals being mixed to the Master Section. It is important that the input level is set correctly to give maximum travel on the fader which should normally be used at around the “0” mark. See the “Initial Setup” section on page 36 for help in setting the right level.

9 PFL

When the latching PFL switch is pressed, the pre-fade pre-mute signal is fed in mono to the headphones, control room output and meters, where it replaces the MIX. The PFL ACTIVE LED on the Master section illuminates to warn that a PFL is active. The Left and Right meters display the PFL signal in mono. This is a useful way of listening to any required input signal without interrupting the main mix, for making adjustments or tracing problems.

10 CHANNEL PEAK LED

This LED will light when the signal level approaches clipping at any of the three monitored points: a) PRE-EQ b) POST-EQ c) POST-FADE

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MASTER SECTION (EFX)

1 PHANTOM POWER

Many professional condenser mics need PHANTOM POWER, which is a method of sending a powering voltage down the same wires as the mic signal. Press the switch to enable the +48V power to all of the MIC inputs. The adjacent LED illuminates when the power is active.

WARNING: TAKE CARE when using unbalanced mics which may be damaged by the phantom power voltage. Balanced dynamic mics can normally be used with

phantom power switched on (contact your microphone manufacturer for guidance).

Mics should always be plugged in, and all output faders set to minimum before switching the Phantom Power ON to avoid damage to external equipment

2 POWER INDICATOR

This LED lights to show when power is connected to the console.

3 MASTER FADERS

The MASTER FADERS set the nal level of the MIX outputs, and separate

faders are provided for each output. These should normally be set close to the ‘0’ mark if the input GAIN settings have been correctly set, to give maximum travel on the faders for smoothest control.

4 MIX OUTPUTS, INSERTS & MONO OUTPUT

The Mix LEFT and RIGHT outputs are sent from the XLR sockets as impedance-balanced signals. The Mix INSERT points are on 3-pole ‘A’ gauge jacks and are unbalanced. The MONO OUTPUT (EFX only) caries a mono sum of the left and right mix signals on a 3-pole ‘A’ gauge jack, the output is impedance-balanced.

5 BARGRAPH METERS

The three-colour peak reading BARGRAPH METERS normally show the level of the MIX RIGHT and MIX LEFT outputs, giving you a constant warning of excessive peaks in the signal which might cause overloading. Aim to keep the signal within the amber segments at peak levels for best performance. Similarly, if the output level is too low and hardly registering at all on the

meters, the level of background noise may become signicant. Take care

to set up the input levels for best performance. When any PFL switch is pressed, the meters switch to show the selected PFL signal on both meters, in mono; the PFL ACTIVE LED also lights.

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6 RECORD OUTPUTS

These two RCA outputs carry a copy of the MIX L and MIX R signals. They allow the use of a recording device, e.g. DAT player, Minidisc recorder etc.

7 2 TRACK IN

These two RCA phono sockets are unbalanced Left and Right line-level inputs, used for connecting a playback device.

8 2 TRACK TO MIX

Press this switch to route the 2 Track in signals, connected to the Left and Right RCA sockets 7, to the MIX .

9 MONITOR 2 TRACK

Press this switch to route the 2 Track signal to the monitor and phones, over-riding the default Monitor/Phones signal.

10 MONITOR LEVEL

This control sets the level to the MONITOR LEFT & RIGHT outputs. If headphones are plugged into the PHONES jack, the headphone level will track the Monitor Level.

11 MONITOR OUTPUTS

The Monitor Outputs are on 3-pole ‘A’ gauge jacks and are balanced connections.

12 PHONES LEVEL

This control sets the output level to the Headphone outputs. If headphones are plugged into the PHONES jack, then the knob sets a comfortable headphone listening level without affecting the Monitor output levels.

13 HEADPHONES JACK

The PHONES output is a 3-pole ‘A’ gauge jack, wired as a stereo output as shown, ideally for headphones of 150Ω or greater. 8Ω headphones are not recommended.

14 AUX 1 OUTPUT (AND AUX 2 ON EPM)

This output is on a 3-pole ‘A’ gauge jack and is an impedance-balanced output.

15 AUX 1 PRE/POST SWITCH (AND AUX 2 ON EPM)

This switch globally switches the AUX 1 sends, on all of the input modules, to be either pre-fade or post-fade.

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16 FX BUS OUTPUT (EFX only) (Aux 2 on EPM)

This impedance-balanced output carries the signal from the FX bus. It could be used as a second Aux Output if desired, if the FX Processor is not needed at the time. The FX sends on the inputs channels to the FX bus are always post-fade.

17 FOOTSWITCH (EFX only)

Footswitch Input (see diagram on page 20) - Using a single-pole, momentary footswitch inserted into the FOOTSWITCH input the effects processor can be muted/un-muted.

18 STEREO RETURN INPUTS (EFX only)

This pair of inputs accept 3-pole ‘A’ gauge (TRS) jacks. Use these inputs for sources such as keyboards, drum machines, synths or CDs. The inputs are BALANCED. Mono sources may be used by plugging into the left jack only.

19 STEREO RETURN LEVEL (EFX only)

This control sets the level of signal routed to the main mix busses. There is an associated PK LED to warn of signals which are too high.

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Lexicon® FX PROCESSOR OVERVIEW (EFX only)

The effects within the console have been designed with both live sound reinforcement and home recording in mind. Featuring the deep, rich reverb algorithms that Lexicon® are renowned for the effects processor offers increased versatility and high quality effects, all instantly accessible via the extremely intuitive front panel controls. The effects processor has 32 programs which are held in two banks of 16 programs which can be stored to allow you to create your own custom effect settings.

Front panel controls include a Program Select knob, Tempo and Store buttons, and three independent Parameter knobs that provide instant access and control over the most critical parameters for the selected effect. The table on page 35 lists the functions of the parameter knobs for each fx program.

Note: When the console is powered up the program recalled will always be the selected program in BANK A.

FX OPERATION

Select and Load a Program

Turn the Program Select knob to choose a program. Note that the console has 32 programs which are held in two banks of 16 programs. There are individual BANK A and BANK B LED’s to indicate which bank is currently active. When turning the rotary Program Select knob through 360 degrees (a full rotation) the selected bank will alternate between BANK A and BANK B.

Set Audio Levels

1. Set the gain on the input channel appropriate to the source (vocal microphone, guitar, keyboard, etc.).

2. Set the FX send on the input channel to the 12 o’clock position.

3. Set the EFFECTS Fader on the FX section to the fully down position.

4. Provide source signal (by speaking or singing into the microphone, playing guitar, keyboard, etc.) on the selected channel.

5. Turn up the FX Send level on the channel until the Red CLIP LED in the FX Panel lights only occasionally. If the red Input LED stays lit, too much signal is being sent to the effect processor: reduce FX Send on the input channel.

6. Raise the EFFECTS Fader towards the 0dB position to feed the required level of FX Processor output signal to the mix.

7. To increase or decrease the amount of effect on the signal, adjust the FX Send level on the channel that you want affected.

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FX PROCESSOR CONTROLS (EFX only)

1. Tempo Button - Tapping this button twice sets the Delay Time of the selected

program. The LED ashes to indicate current tempo. Can be tapped in time with

music source to synchronise the delay.

2. Store Button - Stores program modications to one of the program locations.

Press and hold for three seconds will store the preset in the current location. The LED

will ash rapidly during the store operation and then stay illuminated for 1 second

to show the operation is complete.

3. Pre Delay / Time/ Speed Knob - Controls Pre Delay of the reverbs or the rst

parameter (time or speed related) of the selected effect. The LED illuminates when the parameter matches the stored setting.

4. Decay / Feedback/Depth Knob - Controls Decay of the reverbs or the second parameter (feedback or depth related) of the selected effect. The LED illuminates when the parameter matches the stored setting.

5. Variation - Controls Liveliness or Diffusion (depending on the reverb selected) or the third parameter of the selected effect. The LED illuminates when the parameter matches the stored setting.

6. Program Select Knob - Navigates through programs, turning to the required program will initiate the loading of the program which take approximately 1 second. The knob can be rotated clockwise or anticlockwise and will alternate between BANK A and BANK B every full rotation. The current bank is shown by its illuminated LED,

which ashes if the FX processor is muted. There is a handy aide memoir of the

programs printed on the front panel.

7. Clip LED – This LED illuminates when either the incoming audio or the processed audio (within the effect processor) overloads, and causes distortion of the signal.

8. PFL - This switch routes a post effects processor, pre-fade (EFFECTS FADER) signal to the monitor system.

9. MUTE - This switch mutes the output of the FX processor. It doesn’t mute the PFL signal or the FX TO AUX 1 pre-fade signal.

10. FX TO AUX 1 - This pot routes a pre-fade and a post-fade signal to the Aux 1-pre and Aux 1-post busses respectively.

11. EFFECTS FADER - This fader controls the level of the signal, from the FX processor, routed to the main mix busses.

FX BUS OUT (see diagram on page 24) - This output carries the signal from the FX bus. It could be used as a second Aux Output if desired, if the FX Processor is not needed at the time.

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REVERBS

Reverberation (or “reverb” for short) is the complex effect created by the way we perceive sound in an enclosed space. When sound waves encounter an object or boundary, they don’t just stop. Some of the sound

is absorbed by the object, but most of the sound is reected or is diffused. In an enclosed space, reverb is

dependent on many features of that space, including the size, shape and the type of materials that line the walls. Even with closed eyes, a listener can easily tell the difference between a closet, a locker room and a large auditorium. Reverb is a natural component of the acoustic experience, and most people feel that something is missing without it.

Hall Reverb

A Hall is designed to emulate the acoustics of a concert hall – a space large enough to contain an orchestra and an audience. Because of the size and characteristics, Halls are the most natural-sounding reverbs, designed to remain “behind” the direct sound – adding ambience and space, but leaving the source unchanged. This effect has a relatively low initial echo density which builds up gradually over time. Vocal Hall and Drum

Hall reverbs are specically tailored for those uses. Vocal Hall has as lower overall diffusion which works well

with program material that has softer initial transients like a voice. Drum Hall has a higher diffusion setting which is necessary to smooth out faster transient signals found in drums and percussion instruments. In addition to general instrumental and vocal applications, the Hall program is a good choice for giving separately recorded tracks the sense of belonging to the same performance.

Plate Reverb

A Plate reverb is a large, thin sheet of metal suspended upright under tension on springs. Transducers attached to the plate transmit a signal that makes the plate vibrate, causing sounds to appear to be occurring in a large, open space. The Plates in the FX processor model the sound of metal plates with high initial diffusion and a relatively bright, colored sound. Plate reverbs are designed to be heard as part of the music, mellowing and thickening the initial sound. Plate reverbs are often used to enhance popular music, particularly percussion.

Room Reverb

Room produces an excellent simulation of a very small room which is useful for dialog and voiceover applications. Room is also practical when used judiciously for fattening up high-energy signals like electric guitar amp recordings. Historically, recording studio chambers were oddly-shaped rooms with a loudspeaker and set of microphones to collect ambience in various parts of the room.

Chamber Reverb

Chamber programs produce even, relatively dimensionless reverberation with little color change as sound decays. The initial diffusion is similar to the Hall programs. However, the sense of size and space is much less obvious. This characteristic, coupled with the low color of the decay tail, makes these programs useful on a wide range of material - especially the spoken voice, to which Chamber programs add a noticeable increase in loudness with low color.

Gated Reverb

Gated reverb is created by feeding a reverb, such as a metal plate, through a gate device. Decay Time is set to instant, while Hold Time varies duration and sound. The Gated reverb provides a fairly constant sound with no decay until the reverb is cut off abruptly. This program works well on percussion — particularly on snare and toms; be sure to experiment with other sound sources as well.

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Reverse Reverb

Reverse reverb works in the opposite fashion from normal reverb. Whereas a normal reverb has the loudest

series of reections heard rst that then become quieter over time, the Reverse reverb has the softest reections (essentially the tail of the reverb) heard rst, and then grows louder over time until they abruptly cut off.

Ambience Reverb

Ambience is used to simulate the effect of a small or medium sized room without noticeable decay. It is often used for voice, guitar or percussion.

Studio Reverb

Much like Room reverb, Studio produces an excellent simulation of smaller, well controlled acoustic spaces, characteristic of the main performance areas in recording studios. Studio is also useful with dialog and voiceover applications as well as individual instrument and electric guitar tracks.

Arena Reverb

Arena reverb emulates a huge physical space such as an indoor sports venue or stadium. The characteristics

of Arena reverb are long secondary reection times and a reduced amount of high frequency content. Arena

is a mostly mid- and low frequency dominant reverb, and is an ideal selection for “special effect” type applications that require extremely long reverb times. It is not a good choice for a very busy mix, since it can reduce intelligibility.

Spring Reverb

A Spring reverb is created by a pair of piezoelectric crystals—one acting as a speaker and the other acting as a microphone— connected by a simple set of springs. The characteristic ‘boing’ of a spring is an important component of many classic rock and rockabilly guitar sounds.

KARAOKE

The Golden Karaoke Patch creates a great Karaoke performance sound in any size KTV room.

REVERB CONTROLS

Pre Delay

Creates an additional time delay between the source signal and the onset of reverberation. This control is not intended to precisely mimic the time delays in natural spaces, as the build-up of reverberation is gradual, and the initial time gap is usually relatively short. For the most natural effect, the Pre Delay values should be set in the range of 10-25 milliseconds. However, if a mix is very busy or overly cluttered, increasing the Pre Delay time may help clarify it, and set each instrument apart from each other.

Decay

Controls the amount of time the reverb can be heard. Higher settings increase reverberation times which are usually associated with larger acoustical environments, but can decrease intelligibility. Lower settings shorten reverb times and should be used when a smaller apparent space or a more subtle effect is desired.

Liveliness

Adjusts the amount of high frequency content in the reverberation tails. Higher settings increase high frequency response, creating brighter reverbs; lower settings create darker reverbs with more bass frequency emphasis.

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Diffusion

Controls the initial echo density. High settings of Diffusion result in high initial echo density, and low settings

cause low initial density. In a real-world situation, irregular walls cause high diffusion, while large at walls

cause low diffusion. For drums and percussion, try using higher Diffusion settings.

Shape

This control helps give a sense of both room shape and room size. Low values for Shape keep the majority of sound energy in the early part of the reverb tail. High values move the energy to later in the reverb, and are helpful in creating the sense of a strong rear wall or “backslap.

Boing

This is a unique parameter to the Spring reverb, designed to increase or decrease the amount of spring rattle that is a physical characteristic of spring tank reverbs.

DELAYS

Delays repeat a sound a short time after it rst occurs. Delay becomes echo when the output is fed back into

the input (feedback). This turns a single repeat into a series of repeats, each a little softer than the last.

Studio Delay

The Studio Delay features up to 2.5 seconds of stereo delay and offers a built-in ducker that attenuates the delay output whenever signal is present at the input. This can be used to keep the original signal from being muddied up by delay repeats.

Digital Delay

The Digital Delay is the cleanest, most accurate of the delay programs, with up to 5 seconds of mono delay and the built-in ducking feature.

Tape Delay

In the days before digital, delays were created using a special tape recorder in which the magnetic recording tape was looped, with closely-spaced recording and playback heads. The delay effect was created by the tape moving in the space between the record and playback heads – while delay time was adjusted by changing

the speed of the tape loop. Although very musical-sounding, wow and utter combined with a signicant

loss of high frequencies, and to some extent also low frequencies, are all elements commonly associated with tape recordings. The Tape Delay offers up to 5 seconds of mono delay.

Pong Delay

This delay effect pans the delay repeats from left to right, while the input signal remains at its original (center) position. Pong Delay offers up to 5 seconds of mono delay time.

Modulated Delay

The Modulated Delay is enhanced by an LFO (low frequency oscillator) that produces a chorusing effect on the delay repeats. This is a great delay for guitar and instrument passages that need that “special something.” The Modulated Delay features up to 2.5 seconds of stereo modulated delay.

Reverse Delay

This delay effect emulates the old studio trick of ipping a tape over, playing it backwards through a tape

delay, and recording the effect. The delays “build up” from softer to louder – creating the sensation that the delays come before the signal. Up to 5 seconds of mono delay time are available.

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DELAY CONTROLS

Time Range

Controls the length of the delay relative to Tap Tempo. At the 12 o’clock position, delay repeats are synchronous with the Tempo light (represented by a Quarter Note); lower values create faster repeats, higher values increase the time between repeats. Range 0-72. See The Effects Data Chart for exact note values.

Feedback

Controls the number of delay repeats by feeding the delay output signal back into the delay input. This creates a series of delay repeats, each slightly attenuated until they become inaudible. Higher settings create more repeats; lower settings reduce the number of repeats. When this knob is turned fully clockwise, it engages

Repeat Hold – delay repeats play back in an innite loop, but no further input signal is introduced into the

delay effect. Repeat Hold is available only on Studio, Digital and Pong Delay.

Ducker Threshold

Studio and Digital delays offer a “ducking” feature, which causes the delay repeats to attenuate (or get softer) by -6dB when live (or input) signal is present. This allows the delay to remain as an effect, and not clash with the original signal. The higher this value is set, the louder an input signal must be for the ducking to take place.

Smear

This parameter controls the amount of “smear,” or signal degradation and frequency loss. Particularly evident in the Tape Delay, the higher the setting, the more each delay repeat loses intelligibility compared to the original signal.

Tap Ratio

Tap Ratio sets the length between the rst and second tap repeats of the Pong Delay. With this control set

at 12 o’clock, repeats are evenly alternated between left and right channels. As this knob is turned counter-

clockwise, the rst tap occurs earlier and the second tap occurs later than they did at the 12 o’clock position. When the knob is turned clockwise, the rst tap occurs later and the second tap occurs earlier.

Depth

This controls the intensity of modulation, or “depth” in the Modulated Delay. Lower settings produce a more subtle effect, while higher values give a more “seasick” feeling.

Tempo Button

Tapping this button twice sets the delay times. The Tempo button LED ashes the tempo tapped in, and delay taps will be synchronized to the ashing LED. Use the Time Range knob to increase or decrease delay times

after tapping in a tempo.

Note: When Delay Feedback is at maximum (fully clockwise) in some programs the mode changes to hold the audio in a constant loop. This is indicated in the Effects Data Chart as “+H”.

MODULATED EFFECTS

Chorus

Chorus creates a lush, full sound by combining two or more signals together where one is unaffected and the other signals vary in pitch very slightly over time. Chorus is commonly used to fatten up tracks and to add body to guitars without coloring the original tone. Chorus can also be used with discretion to thicken a vocal track.

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Knob 1: Speed Controls the modulation rate of the Chorus effect. Lower settings are subtle, while higher values are much more pronounced. Knob 2: Depth Controls the amount of pitch shifting for each voice. Lower settings provide subtle thickening and warmth to a track, while higher settings give a more pronounced, multi-voice effect. Knob 3: Voices Controls the number of additional Chorus voices. Up to 8 voices can be added, continuously variable in 100 individual steps.

Flanger

This effect was originally created by simultaneously recording and playing back two identical programs on

two tape recorders, then using hand pressure against the ange of the tape reels to slow down rst one

machine, then the other. The result was a series of changing phase cancellations and reinforcements, with characteristic swishing, tunneling, and fading sounds.

Knob 1: Speed Controls the modulation rate of the Flanger effect. Knob 2: Depth Controls the intensity of the Flanger effect. Lower settings provide a slight “whooshing” sound

while higher settings provide a much more dramatic “jet airplane” sound. Knob 3: Regeneration This knob controls the amount of modulated signal being fed back into the input, creating feedback. Higher amounts add a metallic resonance to the signal.

Phaser

The Phaser automatically moves frequency notches up and down the spectrum of the signal by means of a

low frequency oscillator (LFO), creating an oscillating “comb-lter” type effect. This effect is very userful on

keyboards (especially pad presets) and guitars.

Knob 1: Speed Controls the modulation rate of the Phaser effect. Knob 2: Depth Controls the intensity of the Phaser effect. Knob 3: Regeneration This knob controls the amount of modulated signal being fed back into the input,

creating feedback. Higher amounts add more resonance to the effect signal.

Tremelo/Pan

Tremolo and Panner create rhythmic changes in signal amplitude. Tremolo affects both channel’s amplitude simultaneously, while the Panner affects the amplitude of each channel in an alternating manner.

Knob 1: Speed Controls the modulation rate of the Tremolo/Panner. Knob 2: Depth Controls the intensity of the volume amplitude change. Knob 3: Phase Controls whether the amplitude change occurs in both channels simultaneously (Tremolo)

or alternates between channels (Panner).

Vibrato

Vibrato is obtained by smoothly varying the pitch of the signal just sharp and at of the original at a determined rate. Vibrato Stereo (Wet only) Rotary Mono (Wet only) Tremolo/Pan Stereo (Wet only)

Knob 1: Speed Controls the modulation rate of Vibrato. Knob 2: Depth Controls the maximum amount of pitch shift. Lower settings result in a mere “warble,” while

higher settings produce a more exaggerated “wow” sound. Knob 3: Phase This control sets left and right channel waveforms out of phase, resulting in a leftto- right panning motion. This effect shifts the frequency spectrum of the input signal. Altering the pitch of a sound produces a wide range effects - from subtle detunes to full interval shifts up or down a two octave range.

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FACTORY RESET

Use this function if you want to erase all program data and restore the effects processor to its factory state. To perform a Factory Reset press and hold the STORE button while powering up the console. Once the effects processor has initialized (after three seconds), then release the STORE button and the effects processor will be restored to its factory state.

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NAME

ADJUST1 VALUE RANGE

ADJUST2

VALUE RANGE ADJUST3

VALU

RANGE

FIXED1 VALUE

FIXED2

VALUE FIXED3

VALUE

ROUTING

SMALL HALL

PREDELAY 10ms 0-100ms DECAY 1.0s 0-99 LIVELINESS 75 0-99

LARGE HALL

PREDELAY 20ms 0-200ms DECAY 2.0s 0-99 LIVELINESS 35 0-99

VOCAL HALL

PREDELAY 10ms 0-200ms DECAY 1.0s 0-99 LIVELINESS 65 0-99

DRUM HALL

PREDELAY 10ms 0-100ms DECAY 0.8s 0-99 LIVELINESS 75 0-99

SMALL PLATE

PREDELAY 2ms 0-100ms DECAY 1.0s 0-99 LIVELINESS 90 0-99

LARGE PLATE

PREDELAY 2ms 0-200ms DECAY 1.75s 0-99 LIVELINESS 90 0-99

VOCAL PLATE

PREDELAY 10ms 0-200ms DECAY 1.0s 0-99 LIVELINESS 65 0-99

DRUM PLATE

PREDELAY 10ms 0-100ms DECAY 1.0s 0-99 LIVELINESS 75 0-99

ROOM

PREDELAY 2ms 0-100ms DECAY 400ms 0-99 LIVELINESS 50 0-99

STUDIO

PREDELAY 5ms 0-100ms DECAY 500ms 0-99 LIVELINESS 70 0-99

CHAMBER

PREDELAY 0ms 0-100ms DECAY 1.2s 0-99 LIVELINESS 60 0-99

AMBIENCE

PREDELAY 0ms 0-100ms DECAY 400ms 0-99 LIVELINESS 70 0-99

ARENA

PREDELAY 25ms 0-200ms DECAY 2.75s 0-99 LIVELINESS 60 0-99

GATED

PREDELAY 0ms 0-200ms DECAY 300ms 0-99 DIFFUSION 25 0-99

KARAOKE

Delay Time 240ms 0-740ms Echo Repeat 44 0-99 Level 50 0-99

REVERSE

PREDELAY 200mS 0-200ms DECAY 0 0-99 DIFFUSION 50 0-99

SPRING

PREDELAY 0 0-100ms DECAY 1.75s 0-99 BOING 35 0-99

STUDIO DELAY

TIME RANGE 275ms 20ms-2.5s FEEDBACK 15 0-99+H DUCK THRESHOLD -6dB -70-0dB

DIGITAL DELAY

TIME RANGE 800ms 20ms-5.0s FEEDBACK 20 0-99+H DUCK THRESHOLD -8dB -70-0dB

TAPE DELAY

TIME RANGE 500ms 20ms-5.0s FEEDBACK 24 0-99 SMEAR 25 0-99

PONG DELAY

TIME RANGE 1.0s 20ms-5.0s FEEDBACK 30 0-99+H TAP RATIO 1:1 0-23

MOD DELAY

TIME RANGE 345ms 20ms-2.5s FEEDBACK 25 0-99 MOD DEPTH 75 0-99

REVERSE DELAY

TIME RANGE 500ms 20ms-2.5s FEEDBACK 0 0-99 SMEAR 50 0-99

CHORUS

SPEED 25 0-99 DEPTH 75 0-99 VOICES 50 0-99

FLANGER

SPEED 15 0-99 DEPTH 25 0-99 REGENERATION 80 0-99

PHASER

SPEED 25 0-99 DEPTH 75 0-99 REGENERATION 80 0-99

TREMELO/PAN

SPEED 40 0-99 DEPTH 80 0-99 PHASE 50 0-99

VIBRATO

SPEED

30 0-99

DEPTH

30 0-99

PHASE

80 0-99

REV/DEL SHORT

TIME RANGE 275ms 20ms-2.5s FEEDBACK 15 0-99+H DECAY 0.75S 0-99 LIVELINESS 60 PREDELAY 2ms DUCK THRESHOLD -6dB SERIAL : DELAY THEN REVERB

REV/DEL LONG

TIME RANGE 800ms 20ms-2.5s FEEDBACK 20 0-99+H DECAY 2.0S 0-99 LIVELINESS 40 PREDELAY 10ms DUCK THRESHOLD -8dB SERIAL : DELAY THEN REVERB

PHASE DELAY

TIME RANGE 500ms 20ms-2.5s FEEDBACK 20 0-99+H SPEED 25 0-99 DEPTH 75 REGENERATION 80 DUCK THRESHOLD -8dB SERIAL : DELAY THEN PHASE

ROTARY DELAY

TIME RANGE 500ms 20ms-2.5s FEEDBACK 20 0-99+H SPEED 50 0-99 DOPPLER 60 SPREAD 99 DUCK THRESHOLD -8dB SERIAL : DELAY THEN ROTARY

EFFECTS DATA CHART (EFX only)

Note +H = repeat hold function

(see page 27 1st paragraph)

Soundcraft EFX/EPM User Guide Issue 1210

USING YOUR EFX OR EPM CONSOLE

The nal 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. However, no amount of careful setting up can take account of the spontaneity and unpredictability of live performance. The mixer must be set up to provide “spare” control range to compensate for changing microphone position and the absorption effect of a large audience (different acoustic characteristics from soundcheck to show).

MICROPHONE PLACEMENT

Careful microphone placement and the choice of a suitable type of microphone for the job is one of the essentials of successful sound reinforcement. The diagrams on the left show the different pick-up patterns for the most common types of microphone. Cardioid microphones are most sensitive to sound coming from in front, and hypercardioid microphones offer even greater directivity, with a small amount of pickup behind the microphone. These types are ideal for recording vocalists or instruments, where rejection of unwanted sounds and elimination of feedback is important. The aim should be to place the microphone as close as physically possible to the source, to cut out unwanted surrounding sounds, allow a lower gain setting on the mixer and avoid feedback. Also a well chosen and well placed microphone should not need any appreciable equalisation. There are no exact rules - let your ears be the judge. In the end, the position that gives the desired effect is the correct position!

INITIAL SETUP

Once you have connected up your system (see the sections on connection and wiring earlier in this manual for guidance) you are ready to set initial positions for the controls on your mixer. Set up individual input channel as follows:

• Connect your sources (microphone, keyboard etc.) to the required inputs.

WARNING: Phantom powered mics should be connected before the +48V

is switched on. Ensure the PA system is OFF when switching phantom power on or off.

• Set Master faders at 0, input faders at 0, and set power amplier levels

to about 70%.

• Provide a typical performance level signal and press the PFL button on

the rst channel, monitoring the level on the bargraph meters.

• Adjust the input gain until the meter display is in the amber section, with

occasional peaks to the rst red LED at a typical maximum source level. This allows sufcient headroom to accommodate peaks and establishes

the maximum level for normal operation (but see note below).

• Repeat this procedure on other channels as required. As more channels are added to the mix, the meters may move into the red section. Adjust the overall level using the Master Faders if necessary.

Soundcraft EFX/EPM User Guide Issue 1210

• Listen carefully for the characteristic sound of “feedback”. If you cannot achieve satisfactory input level setting without feedback, check microphone and speaker placement and repeat the exercise. If feedback persists, it may be necessary to use a Graphic Equaliser to reduce the system response at particular resonant frequencies.

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. If this occurs, back off the appropriate Channel Fader slightly until the level is out of the red segments, or adjust the Master Faders.

Remember that the mixer is a mixer, not an amplier. Increasing the overall level is the job of the amplier, and if it is impossible to provide adequate level, it is probable that the amplier is too small for the application. Choose your amplier carefully, and do not try to compensate

for lack of power by using the mixer to increase output level.

Note:

The level of any source signal in the nal output is affected by many factors, principally the Input Gain control, Channel Fader and Mix Faders. You should try to use only as much microphone gain as required to achieve a good balance between signals, with the faders set as described above. If the input gain is set too high, the channel fader will need to be pulled down too far in compensation to leave enough travel for successful mixing and there is a greater risk of feedback because small fader movements will

have a very signicant effect on output level. Also there will be a chance

of distortion as the signal overloads the channel and causes clipping.

If the gain is set too low, you will not nd enough gain on the faders to

bring the signal up to an adequate level, and backgound hiss will be more noticeable. This is illustrated below:

Soundcraft EFX/EPM User Guide Issue 1210

APPLICATIONS

APPLICATION 1 - LIVE SOUND REINFORCEMENT

APPLICATION 2 - MULTISPEAKER APPLICATIONS

This conguration demonstrates how multiple speaker congurations can be driven by the EFX and EPM mixers.

Soundcraft EFX/EPM User Guide Issue 1210

APPLICATION 3 - PLACES OF WORSHIP (using EFX)

This conguration uses the FX OUT BUS (or Aux 2 on EPM) output to drive an induction loop for the hearing impaired (it is assumed that the FX processor isn’t being used in this conguration). Aux 1 output is used to

generate foldback monitoring for the speaker/singer. The main outputs are used to drive the main speaker system. The record and playback connections are used to pass audio to and from a DAT machine or Cassette Recorder.

Soundcraft EFX/EPM User Guide Issue 1210

APPLICATION 4 - RECORDING

The insert points on channels 1-8 may be used to feed a multitrack recorder as shown (link the send and return signals). The Mix outputs are used for a preliminary stereo mix on a DAT recorder.

Soundcraft EFX/EPM User Guide Issue 1210

GLOSSARY

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. Any interference is picked up equally by the two wires, which results in cancellation of the unwanted signal. In this guide, the term can refer to various circuit architectures. Connection details are given in relevant sections.

Clipping The onset of severe distortion in the signal path, usually caused by the peak signal

voltage being limited by the circuit’s power supply voltage.

DAT Digital Audio Tape, a cassette-based digital recording format.

dB (decibel) A ratio of two voltages or signal levels, expressed by the equation dB=20Log10

(V1/V2). Adding the sufx ‘u’ denotes the ratio is relative to 0.775V RMS.

DI(direct injection) The practice of connecting an electric musical instrument directly to the input of the

/DI Box mixing console, rather than to an amplier and loudspeaker which is covered by a

microphone feeding the console.

Equaliser A device that allows the boosting or cutting of selected bands of frequencies in the

signal path.

Fader A linear control providing level adjustment.

Feedback The `howling’ sound caused by bringing a microphone too close to a loudspeaker

driven from its amplied signal.

Foldback A feed sent back to the artistes via loudspeakers or headphones to enable them to

monitor the sounds they are producing.

Frequency response The variation in gain of a device with frequency.

Gain The amount of amplication in level of the signal.

Headroom The available signal range above the nominal level before clipping occurs.

Impedance balancing A technique used on unbalanced outputs to minimise the effect of hum and

interference when connecting to external balanced inputs.

Insert A break point in the signal path to allow the connection of external devices, for in-

stance signal processors or other mixers at line level signals. Nominal levels can be anywhere between 0dBu to +6dBu, usually coming from a low impedance source.

Pan (pot) Abbreviation of ‘panorama’: controls the levels sent to left and right outputs.

Soundcraft EFX/EPM User Guide Issue 1210

Peaking The point at which a signal rises to its maximum instantaneous level, before falling

back down again. It can also describe an equaliser response curve affecting only a band of frequencies, (like on a graphic equaliser), “peaking” at the centre of that band.

Peak LED A visual indication of the signal peaking just before the onset of clipping, which will

distort the 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. Normally connections are made with positive to positive, negative to negative. If this is reversed, the result will be out-of-phase signals (see ‘phase’ above).

Post-fade The point in the signal path after a fader and therefore affected by the fader

position.

Pre-fade The point in the signal path before a fader, and therefore unaffected by the fader

position.

Rolloff A fall in gain at the extremes of the frequency response.

Shelving An equaliser response affecting all frequencies above or below the break frequency

i.e. a highpass or lowpass derived response.

Spill Acoustic interference from other sources.

Transient A momentary rise in the signal level.

Unbalanced A method of audio connection which uses a single wire and the cable screen as the

signal return. This method does not provide the noise immunity of a balanced input (see above).

+48V The phantom power supply, available at the channel mic inputs, for condenser

microphones and active DI boxes.

Soundcraft EFX/EPM User Guide Issue 1210

TYPICAL CONNECTING LEADS

Soundcraft EFX/EPM User Guide Issue 1210

MARK-UP SHEETS - EFX

You may freely copy these pages, and use them to record the settings used for particular applications/gigs.

Soundcraft EFX/EPM User Guide Issue 1210

KARAOKE

Soundcraft EFX/EPM User Guide Issue 1210

MARK-UP SHEETS - EPM

Soundcraft EFX/EPM User Guide Issue 1210

FITTING OPTIONAL RACKMOUNT EARS

The part numbers for the kits are:

RW5744 RACK MOUNTING KIT - EPM6 RW5745 RACK MOUNTING KIT - EFX8/EPM8 RW5746 RACK MOUNTING KIT- EFX12/EPM12 (included with consoles for models shipped 2010 onwards)

Note: a rack extender is included in the EFX8/EPM8 rack mounting kit to make the console t into a 19” frame, see the tting instructions below.

Soundcraft EFX/EPM User Guide Issue 1210

EPM/EFX TYPICAL SPECIFICATIONS

Frequency Response

Mic / Line Input to any Output ...............................................................+/-1.5dB, 20Hz – 20kHz

T.H.D.

Mic Sensitivity -30dBu, +14dBu @ Mix output ....................................................< 0.02% @ 1kHz

Noise

Mic Input E.I.N. (maximum gain) ..........................……….........................-127dBu (150Ω source)

Aux, Mix and Masters (@ 0dB, faders down)..........................................................………< -85dBu

Crosstalk (@ 1kHz)

Channel Mute...................................................................................................................> 96dB

Aux Send Pots Offness......................................................................................................> 86dB

EQ (Mono inputs)

HF ......................................................................................................................12kHz, +/-15dB

MF (swept)...........................................................................................150Hz – 3.5kHz, +/-15dB

LF..........................................................................................................................80Hz, +/-15dB

Q..............................................................................................................................................1.5

EQ (Stereo inputs)

HF ......................................................................................................................12kHz, +/-15dB

MF……………………………………………………...………….............…...................……..720Hz, +/-15dB

LF ........................................................................................................................80Hz, +/-15dB

Power Consumption...............................................................................................Less than 35W

Operating Conditions

Temperature Range....................................................................................................5°C to 40°C

Input & Output Levels

Mic Input .................................................................................................................+15dBu max

Line Input...................................................................................................................+30dBu max

Stereo Input ............................................................................................................+30dBu max

Mix Output ...............................................................................................................+20dBu max

Headphones (@150Ω) ....................................................................................................300mW

Input & Output Impedances

Mic Input ..............................................................................................................................2kΩ

Line Input ...........................................................................................................................10kΩ

Stereo Input ....................................................................................65kΩ (stereo), 35kΩ (mono)

Outputs .............................................................................150Ω (balanced), 75Ω (unbalanced)

E & OE.

Soundcraft reserves the right to change specications without notice.

Soundcraft EFX/EPM User Guide Issue 1210

WARRANTY

1 Soundcraft is a trading division of Harman International Industries Ltd .

End User means the person who rst 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.

2 If within the period of twelve months from the date of delivery of the Equipment to the End User it

shall prove defective by reason only of faulty materials and/or workmanship to such an extent that the effectiveness and/or usability thereof is materially affected the Equipment or the defective component should be returned to the Dealer or to Soundcraft and subject to the following conditions the Dealer or Soundcraft will repair or replace the defective components. Any components replaced will become the property of Soundcraft.

3 Any Equipment or component returned will be at the risk of the End User whilst in transit (both to

and from the Dealer or Soundcraft) and postage must be prepaid.

4 This warranty shall only be valid if: a) the Equipment has been properly installed in accordance with instructions contained in

Soundcraft’s manual; and

b) the End User has notied Soundcraft or the Dealer within 14 days of the defect appearing;

and

c) no persons other than authorised representatives of Soundcraft or the Dealer have effected

any replacement of parts maintenance adjustments or repairs to the Equipment; and

d) the End User has used the Equipment only for such purposes as Soundcraft recommends,

with only such operating supplies as meet Soundcraft’s specications and otherwise in all respects

in accordance with Soundcraft’s recommendations.

5 Defects arising as a result of the following are not covered by this Warranty: faulty or negligent han-

dling, chemical or electro-chemical or electrical inuences, accidental damage, Acts of God, neglect, deciency in electrical power, air-conditioning or humidity control.

6 The benet of this Warranty may not be assigned by the End User.

7 End Users who are consumers should note their rights under this Warranty are in addition to and do

not affect any other rights to which they may be entitled against the seller of the Equipment.

Soundcraft EFX/EPM User Guide Issue 1210

SOUNDCRAFT SOUNDCRAFT USA A Division of Harman International Industries Ltd 8500 Balboa Boulevard Cranborne House, Cranborne Road, Northridge Potters Bar, Herts, EN6 3JN, UK CA 91329 USA Tel +44 (0) 1707 665000 Tel: +1-818-920-3212 Fax: +44 (0) 1707 660742 Fax: +1-818-920-3208 Email: soundcraft@harman.com Toll Free: 888-251-8352 Email: soundcraft-usa@harman.com

www.soundcraft.com

Soundcraft EPM12 User's Guide

Specifications and Main Features

Frequently Asked Questions

User Manual