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Model: IM8

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MIXING CONSOLE

Owner’s Manual

Bedienungsanleitung

Mode d’emploi

Manual de instrucciones

Manuale di istruzioni

EnglishItaliano Español Français Deutsch

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!

This product, when installed as indicated in the instructions con-

tained in this manual, meets FCC requirements. Modiﬁcations

not expressly approved by Yamaha may void your authority,

granted by the FCC, to use the product.

2. IMPORTANT:

When connecting this product to accessories

and/or another product use only high quality shielded cables.

Cable/s supplied with this product MUST be used. Follow all

installation instructions. Failure to follow instructions could void

your FCC authorization to use this product in the USA.

3. NOTE:

This product has been tested and found to comply with

the requirements listed in FCC Regulations, Part 15 for Class

“B” digital devices. Compliance with these requirements pro-

vides a reasonable level of assurance that your use of this prod-

uct in a residential environment will not result in harmful

interference with other electronic devices. This equipment gen-

erates/uses radio frequencies and, if not installed and used

according to the instructions found in the users manual, may

cause interference harmful to the operation of other electronic

devices. Compliance with FCC regulations does not guarantee

* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA. (class B)

that interference will not occur in all installations. If this product

is found to be the source of interference, which can be deter-

mined by turning the unit “OFF” and “ON”, please try to elimi-

nate the problem by using one of the following measures:

Relocate either this product or the device that is being affected

by the interference.

Utilize power outlets that are on different branch (circuit breaker

or fuse) circuits or install AC line ﬁlter/s.

In the case of radio or TV interference, relocate/reorient the

antenna. If the antenna lead-in is 300 ohm ribbon lead, change

the lead-in to co-axial type cable.

If these corrective measures do not produce satisfactory results,

please contact the local retailer authorized to distribute this type

of product. If you can not locate the appropriate retailer, please

contact Yamaha Corporation of America, Electronic Service

Division, 6600 Orangethorpe Ave, Buena Park, CA90620

The above statements apply ONLY to those products distributed

by Ya maha Corporation of America or its subsidiaries.

FCC INFORMATION (U.S.A.)

* This applies only to products distributed by

YAMAHA CORPORATION OF AMERICA.

COMPLIANCE INFORMATION STATEMENT

(DECLARATION OF CONFORMITY PROCEDURE)

Responsible Party : Yamaha Corporation of America

Address : 6600 Orangethorpe Ave., Buena Park, Calif. 90620

Telephone : 714-522-9011

Type of Equipment : MIXING CONSOLE

Model Name : IM8-40/IM8-32/IM8-24

This device complies with Part 15 of the FCC Rules.

Operation is subject to the following two conditions:

1) this device may not cause harmful interference, and

2) this device must accept any interference received including interference

that may cause undesired operation.

See user manual instructions if interference to radio reception is sus-

pected.

(FCC DoC)

The above warning is located on the rear of the unit.

Explanation of Graphical Symbols

The lightning ﬂash with arrowhead symbol

within an equilateral triangle is intended to alert

the user to the presence of uninsulated

“dangerous voltage” within the product’s

enclosure that may be of sufﬁcient magnitude to

constitute a risk of electric shock to persons.

The exclamation point within an equilateral

triangle is intended to alert the user to the

presence of important operating and maintenance

(servicing) instructions in the literature

accompanying the product.

IMPORTANT SAFETY INSTRUCTIONS

1 Read these instructions.

2Keep these instructions.

3 Heed all warnings.

4 Follow all instructions.

5 Do not use this apparatus near water.

6 Clean only with dry cloth.

7 Do not block any ventilation openings. Install in

accordance with the manufacturer’s instructions.

8 Do not install near any heat sources such as radiators,

heat registers, stoves, or other apparatus (including

ampliﬁers) that produce heat.

9 Do not defeat the safety purpose of the polarized or

grounding-type plug. A polarized 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 ﬁt into your outlet, consult an

electrician for replacement of the obsolete outlet.

10 Protect the power cord from being walked on or pinched

particularly at plugs, convenience receptacles, and the

point where they exit from the apparatus.

11 Only use attachments/accessories speciﬁed by the

manufacturer.

12 Use only with the cart, stand,

tripod, bracket, or table speciﬁed

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.

13 Unplug this apparatus during

lightning storms or when unused for long periods of

time.

14 Refer all servicing to qualiﬁed 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 have

fallen into the apparatus, the apparatus has been

exposed to rain or moisture, does not operate normally,

or has been dropped.

(UL60065_03)

CAUTION: TO REDUCE THE RISK OF

ELECTRIC SHOCK, DO NOT REMOVE

COVER (OR BACK). NO USER-SERVICEABLE

PARTS INSIDE. REFER SERVICING TO

QUALIFIED SERVICE PERSONNEL.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

English

Owner’s Manual

PRECAUTIONS

PLEASE READ CAREFULLY BEFORE PROCEEDING

* Please keep this manual in a safe place for future reference.

WARNING

Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical

shock, short-circuiting, damages, ﬁre or other hazards. These precautions include, but are not limited to, the following:

• Only use the voltage speciﬁed as correct for the device. The required voltage is

printed on the name plate of the device.

• Use only the speciﬁed power supply (PW8 or an equivalent recommended by

Yamaha).

• Do not place the power cord near heat sources such as heaters or radiators, and

do not excessively bend or otherwise damage the cord, place heavy objects on

it, or place it in a position where anyone could walk on, trip over, or roll anything

over it.

• Do not open the device or attempt to disassemble the internal parts or modify

them in any way. The device contains no user-serviceable parts. If it should

appear to be malfunctioning, discontinue use immediately and have it inspected

by qualiﬁed Yamaha service personnel.

• Do not expose the device to rain, use it near water or in damp or wet conditions,

or place containers on it containing liquids which might spill into any openings.

If any liquid such as water seeps into the device, turn off the power immediately

and unplug the power cord from the AC outlet. Then have the device inspected

by qualiﬁed Yamaha service personnel.

• Never insert or remove an electric plug with wet hands.

• If the power cord or plug becomes frayed or damaged, or if there is a sudden

loss of sound during use of the device, or if any unusual smells or smoke

should appear to be caused by it, immediately turn off the power switch,

disconnect the electric plug from the outlet, and have the device inspected by

qualiﬁed Yamaha service personnel.

• If this device or power supply should be dropped or damaged, immediately turn

off the power switch, disconnect the electric plug from the outlet, and have the

device inspected by qualiﬁed Yamaha service personnel.

CAUTION

Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or damage

to the device or other property. These precautions include, but are not limited to, the following:

• Remove the electric plug from the outlet when the device is not to be used for

extended periods of time, or during electrical storms.

• When removing the electric plug from the device or an outlet, always hold the

plug itself and not the cord. Pulling by the cord can damage it.

• When transporting or moving the device, always use two or more people.

Attempting to lift the device by yourself may damage your back, result in other

injury, or cause damage to the device itself.

• Before moving the device, remove all connected cables.

•Avoid setting all equalizer controls and faders to their maximum. Depending on

the condition of the connected devices, doing so may cause feedback and may

damage the speakers.

• Do not expose the device to excessive dust or vibrations, or extreme cold or heat

(such as in direct sunlight, near a heater, or in a car during the day) to prevent

the possibility of panel disﬁguration or damage to the internal components.

• Do not place the device in an unstable position where it might accidentally fall

over.

• Do not use the device in the vicinity of a TV, radio, stereo equipment, mobile

phone, or other electric devices. Doing so may result in noise, both in the device

itself and in the TV or radio next to it.

• Before connecting the device to other devices, turn off the power for all devices.

Before turning the power on or off for all devices, set all volume levels to

minimum.

• When turning on the AC power in your audio system, always turn on the power

ampliﬁer LAST, to avoid speaker damage. When turning the power off, the power

ampliﬁer should be turned off FIRST for the same reason.

• Do not insert your ﬁngers or hands in any gaps or openings on the device.

•Avoid inserting or dropping foreign objects (paper, plastic, metal, etc.) into any

gaps or openings on the device. If this happens, turn off the power immediately

and unplug the power cord from the AC outlet. Then have the device inspected

by qualiﬁed Yamaha service personnel.

• Do not apply oil, grease, or contact cleaner to the faders. Doing so may cause

problems with electrical contact or fader motion.

• Do not use the headphones or speakers for a long period of time at a high or

uncomfortable volume level, since this can cause permanent hearing loss. If you

experience any hearing loss or ringing in the ears, consult a physician.

• Do not rest your weight on the device or place heavy objects on it, and avoid use

excessive force on the buttons, switches or connectors.

Power supply/Power cord

Do not open

Water warning

If you notice any abnormality

Power supply/Power cord

Location

Connections

Handling caution

(5)-5

1/2

Owner’s Manual

English

Always turn the power off when the device is not in use.

The performance of components with moving contacts, such as switches, volume controls, and connectors, deteriorates over time. Consult qualiﬁed Yamaha service

personnel about replacing defective components.

SPECIAL NOTICES

• This manual is the exclusive copyright of Yamaha Corporation.

• The software included in the accessory disk and the copyrights thereof are under exclusive ownership by Steinberg Media Technologies GmbH.

• Use of the software and this manual is governed by the license agreement which the purchaser fully agrees to upon breaking the seal of the software packaging. (Please

read carefully the Software Licensing Agreement at the end of this manual before installing the application.)

• Copying of the software or reproduction of this manual in whole or in part by any means is expressly forbidden without the written consent of the manufacturer.

•Yamaha makes no representations or warranties with regard to the use of the software and documentation and cannot be held responsible for the results of the use of this

manual and the software.

• This disk containing the software is not meant for use with an audio/visual system (CD player, DVD player, etc.). Do not attempt to use the disk on equipment other than a

computer.

• Future upgrades of application and system software and any changes in speciﬁcations and functions will be announced separately.

The illustrations and LCD screens as shown in this manual are for instructional purposes only, and may appear somewhat different from those on your instrument.

This product incorporates and bundles computer programs and contents in which Yamaha owns copyrights or with respect to which it has license to use others' copyrights.

Such copyrighted materials include, without limitation, all computer software, style ﬁles, MIDI ﬁles, WAVE data, musical scores and sound recordings. Any unauthorized use

of such programs and contents outside of personal use is not permitted under relevant laws. Any violation of copyright has legal consequences. DON'T MAKE, DISTRIBUTE

OR USE ILLEGAL COPIES.

Copying of the commercially available musical data including but not limited to MIDI data and/or audio data is strictly prohibited except for your personal use.

• Windows is a registered trademark of Microsoft

Corporation in the United States and other countries.

• The company names and product names in this manual are the trademarks or registered trademarks of their respective companies.

European models

Purchaser/User Information speciﬁed in EN55103-1 and EN55103-2.

Conforms to Environments: E1, E2, E3, E4

Speciﬁcations and descriptions in this owner’s manual are for information purposes only.

Yamaha Corp. reserves the right to change or modify products of speciﬁcations at any time without prior notice. Since speciﬁcations, equipment or options may not be the

same in every locale, please check with your Yamaha dealer.

XLR-type connectors are wired as follows (IEC60268 standard): pin 1: ground, pin 2: hot (+), and pin 3: cold (-).

Insert TRS phone jacks are wired as follows: sleeve: ground, tip: send, and ring: return.

Yamaha cannot be held responsible for damage caused by improper use or modiﬁcations to the device, or data that is lost or destroyed.

(5)-5

2/2

English

Introduction

Owner’s Manual

Introduction

Thank you for your purchase of the Yamaha IM8 mixing console. Please read through this manual carefully

before beginning use, so that you will be able to take full advantage of your mixer’s superlative features and

enjoy trouble-free operation for years to come. After you’ve read the manual, keep it safe for future reference

when needed.

• Input channels

The console provides 40 monaural input channels (the

IM8-32 has 32 channels, and the IM8-24 has 24 channels)

that can accommodate mic through line-level devices, as

well as four stereo inputs that can accommodate line-level

devices.

• Compressors

A compressor is provided on every monaural channel.

Using just a single knob, you can compress the peaks of

the input signal from a source such as a microphone or

acoustic instrument (e.g., guitar), raising the overall vol-

ume without allowing the sound to distort.

•AUX SEND faders

Faders are provided on the AUX sends, allowing you to

use them not only for the main mix but also to create indi-

vidual mixes for monitoring.

• Owner’s Manual (this book)

•Power supply cable

• Cubase AI 4 DVD-ROM

• USB cable

Introduction .........................................6

Features ................................................................................ 6

Accessories .......................................................................... 6

System Requirements........................................................... 7

Differences between the IM8-40/32/24 mixers ..................... 7

Controls and Functions .......................8

Channel Control Section ....................................................... 8

Master Control Section ....................................................... 12

STEREO AUX RETURN Section.................................... 13

2TR IN/USB Section...................................................... 13

REC OUT/USB Section ................................................. 14

MATRIX OUT Section.................................................... 14

DC POWER INPUT Section........................................... 15

MUTE MASTER Section ................................................ 15

TALKBACK Section ...................................................... 15

AUX SEND Section ....................................................... 16

GROUP OUT Section.................................................... 16

STEREO MASTER Section ............................................ 17

MONITOR Section ........................................................ 18

MONO Section.............................................................. 19

LAMP Connector........................................................... 19

Troubleshooting.................................20

About the accessory disk..................21

Specifications..................................166

Electrical Specifications.................................................... 166

General Specifications...................................................... 167

Analog Input Specifications.............................................. 167

Analog Output Specifications ........................................... 168

Digital Input/Output Specifications ................................... 168

Jack List............................................................................ 169

Dimensional Diagram ....................................................... 170

Track Sheet .....................................172

Block Diagram and Level Diagram..174

Features

Accessories

Table of Contents

English

Introduction

Owner’s Manual

■

Computer System Requirements

For latest information about the minimum system require-

ments etc., check the web site below.

<http://www.yamahaproaudio.com/>

■

Cubase AI 4 System Requirements

For information about the minimum system requirements and

latest information on Cubase AI, check the web site below.

<http://www.yamahasynth.com/>

The IM8 mixer is available in three models (IM8-40, IM8-32,

IM8-24) which differ as follows.

• Number of monaural input channels

The IM8-40 provides 40 monaural input channels, the IM8-

32 provides 32, and the IM8-24 provides 24. The remain-

ing channels (stereo input channels, 2TR IN, etc.) are the

same for all models.

• Number of LAMP connectors

The IM8-40 provides three LAMP connectors to which you

can connect separately sold gooseneck lamps (e.g.,

Yamaha LA5000), while the IM8-32 and IM8-24 provide

two such connectors.

System Requirements

Differences between the

IM8-40/32/24 mixers

English

Controls and Functions

Owner’s Manual

Controls and Functions

• Rear Panel

INPUT Jack (monaural)

These monaural input jacks are used to connect micro-

phones or musical instruments. Each input channel fea-

tures two types of jacks (INPUT A and INPUT B).

• INPUT A Jack

These are balanced XLR-3-31 type input jacks (1:

Ground; 2: Hot; 3: Cold).

• INPUT B Jack

These are TRS phone-jack type balanced inputs. (T:

Hot; R; Cold; S: Ground)

You can connect either balanced or unbalanced phone

plugs to these jacks.

NOTE

· Only one type of jack can be used at a time on a single

channel.

INSERT Jack

These jacks are located between the compressor and

equalizer of the corresponding monaural input channel.

The INSERT jacks are ideal for connecting devices such

as graphic equalizers or noise ﬁlters into the corre-

sponding channels. The INSERT jacks are TRS (tip,

ring, sleeve) phone jacks that carry both the send and

return signal (tip = send/out; ring = return/in; sleeve =

ground).

NOTE

· Patching external devices via an INSERT jack requires a

special insert cable such as illustrated below (insert

cable sold separately).

DIRECT OUT Jack

These are impedance balanced (page 19) phone-jack

type outputs. They output the signal that has passed

through the compressor.

NOTE

· If necessary, the signal that is output from the DIRECT

OUT jack can be changed to the signal immediately

before the channel fader (pre-fader) or the signal after

the channel fader (post-fader) by changing an internal

jumper. A fee will be charged for this modiﬁcation. For

details, contact to your Yamaha dealer listed at the end of

this manual.

INPUT Jacks (stereo)

These are stereo input jacks that connect line-level

instruments, such as a synthesizer. Each input channel

features two types of jacks (INPUT A and INPUT B).

• INPUT A Jacks

These are unbalanced phone-jack stereo line inputs.

• INPUT B Jacks

These are unbalanced stereo RCA pin-jack line inputs.

NOTE

· Only one type of jack can be used at a time on a single

channel.

Channel Control Section

Tu rn off the Yamaha PW8 power supply before you

connect or disconnect any cables to or from the

console.

Monaural channels Stereo channels

To the input jack of the

external processor

To the INSERT jack

Tip: OUT

Tip: IN

To the output jack of the

external processor

Sleeve (Ground)

Ring: IN

Tip: OUT

English

Controls and Functions

Owner’s Manual

•Top Panel

+48V Switch/Indicator

This switch toggles phantom power on and off for a

monaural channel. When the switch is turned on, the

+48V indicator will light, and DC +48V phantom power

will be supplied to Pin 2 and 3 of the corresponding

XLR-type INPUT A jacks. Turn this switch on when using

a phantom-powered condenser microphone.

26 dB (PAD) Switch

When this switch is turned on, the input signal from the

INPUT jack of the monaural channel is attenuated by 26

dB. Turn the switch off ( ) if you’ve connected a

microphone or other device with a low input level to the

channel. Turn it on ( ) if you’ve connected a line-level

device.

GAIN Control

This adjusts the sensitivity of the input signal from the

INPUT jack. Monaural channels have a 26 dB switch

(

) that lets you change the range of this control. The

adjustable sensitivity range is as follows.

• Monaural channel

• Stereo channel

-34dB to +10dB

(Phase) Switch

Tur ning this switch on will invert the phase of the input

signal. Turn this switch on if you need to mix a phase-

reversed signal.

NOTE

· If you try to mix a phase-reversed signal, the signals will

interfere with each other, resulting in degraded sound

quality.

(High Pass Filter) Switch

This switch toggles the HPF on or off.

Tur ning this switch ON will apply a high-pass ﬁlter that

attenuates the signal below 80 Hz by a slope of 12 dB/

octave.

Monaural channels Stereo channels

• Be sure to leave this switch off if you do not need

phantom power.

•When turning phantom power on, be sure that only a

condenser microphone is connected to the INPUT A

jack of the monaural channel. Other devices may be

damaged if connected to phantom power. This precau-

tion does not apply to balanced dynamic microphones,

however, as these will not be affected by phantom

power.

•To avoid damage to speakers, be sure to turn off

ampliﬁers (or powered speakers) before turning this

switch on or off. It’s also a good idea to turn the mixer’s

output controls - STEREO OUT master fader and

GROUP OUT faders - all the way down. If you omit this

precaution, you may damage your hearing or your

equipment.

26 dB switch Range

ON -34dB to +10dB

OFF -60dB to -16dB

English

Controls and Functions

Owner’s Manual

COMP Control/Indicator

Adjusts the amount of compression applied to the chan-

nel. As the COMP knob is turned to the right the com-

pression ratio increases while the output gain is

automatically adjusted accordingly. The result is

smoother, more even dynamics because louder signals

are attenuated while the overall level is boosted. The

COMP indicator will light when the compressor oper-

ates.

NOTE

·Avoid setting the compression too high, as the higher

average output level that results may lead to feedback.

A EQ (Equalizer): HIGH, HI-MID, LO-MID, LOW

This is a four-band equalizer, providing adjustments for

four frequency bands (HIGH, HI-MID, LO-MID, LOW).

Setting the gain control to the “▼” position produces a

ﬂat response in the corresponding band. Turning the

gain control to the right boosts the corresponding fre-

quency band, while turning to the left attenuates the

band. The HI-MID and LO-MID bands of monaural

channels provide a frequency control that lets you

adjust the center frequency.

The following table shows the EQ type, frequency, and

maximum cut/boost for each of the bands.

Monaural channel

Stereo channel

B EQ ON Switch

Switches the equalizer on or off.

C AUX Controls (1–8)

These adjust the level of the signals sent from the input

channel to AUX buses 1–8. These knobs should gener-

ally be set close to the “▼” (nominal) position. The sig-

nal adjusted by these controls is determined by the PRE

switch (D).

D PRE Switches

For each two buses, these switches select whether the

signal sent to the AUX buses will be taken after the

equalizer and before the channel fader (pre-fader), or

after the channel fader (post-fader). If this switch is ON,

the pre-fader signal is sent to the AUX bus, and will not

be affected by the channel fader.

NOTE

· If necessary, the pre-fader signal sent to the AUX buses

can be changed to the signal before the equalizer by

changing an internal jumper. A fee will be charged for

this modiﬁcation. In this case, the signal will be sent to

the AUX buses even if the input channel’s ON switch is

turned off. For details, contact to your Yamaha dealer

listed at the end of this manual.

E PAN Control

This control determines the stereo positioning of the

monaural channel signal on the buses.

Rotate the knob clockwise to pan the signal to the odd

channels of the GROUP buses and the ST L bus, and

counter-clockwise to pan the signal to the even chan-

nels of the GROUP buses and the ST R bus.

F BAL Control

Adjusts the left and right volume balance of stereo

channels. The signal input to the INPUT L jack will be

sent to the odd channels of the GROUP buses or to the

ST L bus, and the signal input to the INPUT R jack will

be sent to the even channels of the GROUP buses or to

the ST R bus.

G ON Switch/Indicator

When this switch is on, that channel will be enabled and

the indicator will light.

NOTE

· Even if the ON switch is off, you can turn on the PFL

switch (K) and monitor the signal before the channel

fader via the MONITOR OUT jacks and the PHONES

jack.

H Input Meter

Three LEDs indicate the input channel signal level after

the equalizer. The “-20” LED will light if the input signal

level reaches -20 dB, and the “0” LED will light at nomi-

nal level. The PEAK LED will light red when the input sig-

nal reaches 3 dB before clipping.

I Bus Assign Switches

These switches determine the bus(es) to which each

channel’s signal is sent. Turning a switch on will output

the signal to the corresponding bus.

• 1-2, 3-4, 5-6, 7-8 switches: Assign the channel’s

signal to the GROUP 1/2–7/8 buses.

• ST switch: Assigns the channel’s signal to the Stereo

L and R buses.

• MONO switch: Assigns the channel’s signal to the

MONO bus.

NOTE

· If you want the signal to be output to the corresponding

bus(es), turn on the channel ON switch (G).

J MUTE Switches (1–4)

These assign the channel’s mute on/off to switches 1–4.

If you turn on the MUTE master switches (1–4)

(page 15) located in the MUTE MASTER section, the

input channels whose corresponding MUTE switch is on

will be muted.

NOTE

·When a channel is muted, the ON indicator (G) will go

dark.

· Even if a channel is muted, you can turn on the PFL

switch (K) and monitor the signal before the channel

fader via the MONITOR OUT jacks and the PHONES

jack.

Band Type Frequency

Maximum

Cut/Boost

HIGH Shelving 10 kHz

±15 dB

HI-MID Peaking 400 Hz – 8 kHz

LO-MID Peaking 80 Hz – 1.6 kHz

LOW Shelving 100 Hz

Band Type Frequency

Maximum

Cut/Boost

HIGH Shelving 10 kHz

±15 dB

HI-MID Peaking 3 kHz

LO-MID Peaking 800 Hz

LOW Shelving 100 Hz

English

Controls and Functions

Owner’s Manual

K PFL Switch/Indicator

When the PFL switch is on, the indicator will light and

the channel pre-fader signal is output to the PHONES

and MONITOR OUT jacks for monitoring.

NOTE

·When you turn on the PFL switch, the PFL indicator of the

MONITOR section (page 18) will light.

L Channel Fader

Adjusts the output level of the input channel signal. Use

these faders to adjust the balance between the various

channels.

NOTE

·To minimize noise, the faders of unused channels should

be set to the lowest position.

· The channel faders will affect the ST, MONO, GROUP 1–

8, and AUX 1–8 (when the PRE switch is off) buses.

Controls and Functions

Owner’s Manual

English

Rear Panel

Top Panel

Master Control Section

DC POWER INPUT

REC OUT/USB Section (page 14)

TALKBACK Section (page 15)

MONITOR Section (page 18)

STEREO MASTER Section

(page 17)

MATRIX OUT Section (page 14)

2TR IN/USB Section (page 13)

MONO Section (page 19) AUX SEND Section

(page 16)

DC POWER INPUT

Section (page 15)

STEREO AUX RETURN

Section (page 13)

GROUP OUT Section

(page 16)

REC OUT/USB Section (page 14)

MATRIX OUT Section (page 14)

DC POWER INPUT Section

(page 15)

MUTE MASTER Section

(page 15)

TALKBACK Section (page 15)

MONITOR Section (page 18)

MONO Section (page 19)

STEREO MASTER Section (page 17)

2TR IN/USB Section (page 13)

STEREO MASTER Section

(page 17)

AUX SEND Section (page 16)

GROUP OUT Section (page 16)

English

Controls and Functions

Owner’s Manual

STEREO AUX RETURN Section

AUX RETURN Jacks

These are unbalanced phone-jack type line inputs. Sig-

nals input from these jacks can be sent to the GROUP 1/

2–7/8, ST L/R, MONO, and AUX 1–4 buses. To the

MONO and AUX 1–4 buses, a mix of the L/MONO and R

signal is sent. These jacks are typically used to receive

the signal returned from an external effect device

(reverb, delay, etc.).

NOTE

· These jacks can also be used as auxiliary stereo inputs.

· If you connect to the L/MONO jack only, the mixer will

recognize the signal as monaural and will send the identi-

cal signal to both the L/MONO and R jacks.

2 AUX Controls (1–4)

These adjust the level at which the signals from the AUX

RETURN jacks are sent (with L and R mixed) to the AUX

1–4 buses.

The “▼” position of the knob is nominal level (0 dB).

3 Bus Assign Switches

These switches determine the bus(es) to which the sig-

nal is received from the AUX RETURN jacks.

• 1-2, 3-4, 5-6, 7-8 switches: Send the signal to the

GROUP 1/2–7/8 buses.

• ST switch: Sends the signal to the ST L/R bus.

• MONO switch: Sends the signal to the MONO bus.

4 RETURN Control

Adjusts the level of the signal sent from the AUX

RETURN jacks to the GROUP 1/2–7/8, ST L/R, or MONO

buses.

The “▼” position of the knob is nominal level (0 dB).

NOTE

· The signals sent to AUX 1–4 are not affected by the

RETURN control.

5 PFL Switch/Indicator

When the PFL switch is on, the indicator will light and

the signal before the AUX controls and RETURN control

in the STEREO AUX RETURN section is output to the

MONITOR OUT and PHONES jacks for monitoring.

NOTE

·When you turn on the PFL switch, the PFL indicator in the

MONITOR section (page 18) will light.

2TR IN/USB Section

2TR IN Jacks

These are RCA pin jacks and a mini-phone jack (stereo)

for inputting a stereo audio source. Use these jacks

when you want to connect a CD player, and output the

signal to the ST L/R or MONO bus.

NOTE

· If signals are simultaneously input from the 2TR IN jacks

(RCA pin jacks, mini-phone jack) and the USB connector,

the signals will be mixed.

2 USB Connector

Connects to the computer via the included cable to

input and output the signals. This connector outputs the

same signal as the REC OUT jacks. The signal input

from this connector is sent to the ST L/R bus or the

MONO bus.

Precautions when using the USB connector

When connecting the computer to the USB connector,

make sure to observe the following points. Failing to do

so risks freezing the computer and corrupting or losing

Rear Panel Top Panel

When connecting or disconnecting the USB cable

be sure to turn the 2TR IN/USB control all the way

down.

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Front Panel

English

Controls and Functions

Owner’s Manual

the data. If the computer or the instrument freezes,

restart the application software or the computer OS, or

turn the power to the instrument off then on again.

3 Bus Assign Switches

These switches determine the bus(es) to which the sig-

nal received from the 2TR IN jacks and the USB con-

nector is sent.

• ST switch: Sends the signal to the ST L/R bus.

• MONO switch: Sends the mixed L and R signal to

the MONO bus.

4 2TR IN/USB Control

Adjusts the level of the signal received from the 2TR IN

jacks and the USB connector.

5 PFL Switch/Indicator

When the PFL switch is on, the indicator will light and the

signal before the 2TR IN/USB control is output to the MON-

ITOR OUT and PHONES jacks for monitoring.

NOTE

·When you turn on the PFL switch, the PFL indicator of the

MONITOR section (page 18) will light.

REC OUT/USB Section

1 REC OUT Jacks

These RCA pin jacks can be connected to an external

recorder such as an MD recorder in order to record the

signal of the ST L/R bus or MONO bus.

NOTE

· The STEREO OUT master fader and MONO fader has no

affect on the signal via these jacks.

2 Bus Assign Switches

These switches determine the signal sent to the REC

OUT jacks and USB connector. If you’re sending the

signal of the MONO bus, the same signal will be output

to the L and R of the REC OUT jacks and the USB con-

nector.

• ST switch: The signal of the ST L/R bus will be

output from the REC OUT jacks and the USB

connector.

• MONO switch: The signal of the MONO bus will be

output from the REC OUT jacks and the USB

connector.

NOTE

· If both the ST switch and the MONO switch are on, the

mixed signals of the ST L/R bus and MONO bus will be

output.

MATRIX OUT Section

MATRIX OUT Jack

This is an impedance balanced (page 19) TRS phone-

jack type output. This jack outputs the signal adjusted

by the controls in the MATRIX OUT section.

2 GROUP Controls (1–8)

These adjust the level of the signals sent from GROUP

OUT 1–8 to the MATRIX OUT jacks.

3 ST Controls (L, R)

These adjust the level of the signals sent from ST OUT L/

R to the MATRIX OUT jacks.

• Use an AB type USB cable of less than about 3

meters.

•To prevent loud pops and noises, turn on the power to

your equipment in the following order; ﬁrst the audio

sources, then the PW8, and ﬁnally the power ampliﬁ-

ers. Reverse this order when turning the power off.

• Before connecting the computer to the USB connector,

exit from any power-saving mode of the computer

(such as suspended, sleep, standby).

• Before turning on the power to the instrument, connect

the computer to the USB connector.

•Execute the following before turning the power to the

instrument on/off or plugging/unplugging the USB

cable to/from the USB connector.

- Quit any open application software on the computer.

-Make sure that data is not being transmitted from

the instrument.

•While the computer is connected to the instrument,

you should wait for six seconds or more between

these operations: (1) when turning the power of the

instrument off then on again, or (2) when alternately

connecting/disconnecting the USB cable.

Rear Panel Top Panel

English

Controls and Functions

Owner’s Manual

4 MONO Control

This control adjusts the level of the signal sent from

MONO OUT to the MATRIX OUT jacks.

5 MATRIX master Control

This control adjusts the overall level of the signal output

to the MATRIX OUT jacks. The “▼” position of the knob

is nominal level (0 dB).

6 AFL Switch/Indicator

When the AFL switch is on, the indicator will light and

the signal after the MATRIX master control is output to

the PHONES and MONITOR OUT jacks for monitoring.

NOTE

· If you want to monitor the signal after the MATRIX master

control, turn off all PFL switches.

DC POWER INPUT Section

DC POWER INPUT Connector

Connects the Yamaha Power Supply PW8 to the console

using the included power supply cable.

2 POWER Indicator

This will light when the Yamaha PW8 power supply is

connected to the console and the PW8 is turned on.

MUTE MASTER Section

MUTE Master Switches/Indicators (1–4)

These switches toggle input channel muting on and off.

Tur ning a switch (1–4) on will mute the input channels

whose MUTE switch (page 10) of the corresponding

number is turned on. When the signal is muted, the ON

indicator of the input channels will go dark.

TALKBACK Section

TALKBACK MIC IN Jack

This is an XLR-3-31 type unbalanced input jack for con-

necting a talkback microphone.

2 Bus Assign Switches

These determine the output destination of the signal

from the TALKBACK MIC jack.

• AUX 1-2, 3-4, 5-6, 7-8 switches: Send the signal to

the AUX 1/2–7/8 buses.

• GROUP 1-8 switch: Sends the signal to the GROUP

1–8 buses.

• STEREO/MONO switch: Sends the signal to the ST

L/R and MONO buses.

• MATRIX 1-2, 3-4 switches: Send the signal to the

MATRIX 1/2 or 3/4 buses.

3 TALKBACK LEVEL Control

Adjusts the level of the signal received from the TALK-

BACK MIC jack.

4 ON Switch/Indicator

When you turn this switch on, the indicator will ﬂash and

the talkback function will be enabled.

•Turn off the Yamaha PW8 power supply before you

connect or disconnect the power supply cable to or

from the console.

•To prevent loud pops and noises, turn on the power to

your equipment in the following order; ﬁrst the audio

sources, then the PW8, and ﬁnally the power ampliﬁ-

ers. Reverse this order when turning the power off.

PUT

Rear Panel Top Panel

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Rear Panel Top Panel

English

Controls and Functions

Owner’s Manual

AUX SEND Section

1 AUX INSERT Jack

This is an input/output jack located before the AUX

SEND fader. You can connect a graphic equalizer or

other signal processor. This is a TRS (tip, ring, sleeve)

phone jack that carries both the send and return signal

(tip = send/out; ring = return/in; sleeve = ground).

NOTE

· Patching external devices via an INSERT jack requires a

special insert cable such as illustrated below (insert

cable sold separately).

2 AUX SEND Jacks

These are balanced XLR-3-32 type output jacks (1:

Ground; 2: Hot; 3: Cold). You can use these jacks, for

example, to connect to a monitor system or an external

effect unit.

3 AUX SEND Meter

Three LEDs indicate the signal level after the AUX SEND

fader.

The “-20” LED will light if the output signal level reaches

-20 dB, and the “0” LED will light at nominal level. The

PEAK LED will light red when the output signal reaches

3 dB before clipping.

4 AUX SEND Fader

Controls the level of the signal output to the AUX SEND

jack.

5 AFL Switch/Indicator

When the AFL switch is on, the indicator will light and

the signal after the AUX SEND fader is output to the

MONITOR OUT and PHONES jacks for monitoring.

NOTE

· If you want to monitor the signal after the AUX SEND

fader, turn off all PFL switches.

GROUP OUT Section

GROUP INSERT Jack

This is an input/output jack located before the GROUP

OUT fader. You can connect a graphic equalizer or

other signal processor. This is a TRS (tip, ring, sleeve)

phone jack that carries both the send and return signal

(tip = send/out; ring = return/in; sleeve = ground).

NOTE

· Patching external devices via an INSERT jack requires a

special insert cable such as illustrated below (insert

cable sold separately).

Rear Panel Top Panel

To the input jack of the

external processor

To the INSERT jack

Tip: OUT

Tip: IN

To the output jack of the

external processor

Sleeve (Ground)

Ring: IN

Tip: OUT

Rear Panel Top Panel

To the input jack of the

external processor

To the INSERT jack

Tip: OUT

Tip: IN

To the output jack of the

external processor

Sleeve (Ground)

Ring: IN

Tip: OUT

English

Controls and Functions

Owner’s Manual

2 GROUP OUT Jacks

These are TRS phone type impedance-balanced

(page 19) output jacks that output the GROUP OUT sig-

nals. You can connect these jacks to a multi-track

recorder, external mixer, or other such device.

3 PAN Controls

These adjust the stereo position of the signals sent from

GROUP OUT to the ST L/R bus. Rotate the knob clock-

wise to pan the signal right, and counter-clockwise to

pan left.

4 ON Switch/Indicator

When this switch is on, that GROUP OUT will be

enabled and the indicator will light.

5 GROUP OUT Meter

Three LEDs indicate the signal level after the GROUP

OUT fader.

The “-20” LED will light if the output signal level reaches

-20 dB, and the “0” LED will light at nominal level. The

PEAK LED will light red when the GROUP OUT signal

reaches 3 dB before clipping.

6 Bus Assign Switches

These switches assign the GROUP OUT signal to the ST

L/R bus and the MONO bus.

NOTE

·Turn the ON switch on if you want to send the GROUP

OUT signal to the ST L/R bus or MONO bus.

7 AFL Switch/Indicator

When the AFL switch is on, the indicator will light and

the signal after the GROUP OUT fader but before the

ON switch is output to the MONITOR OUT and PHONES

jacks for monitoring.

NOTE

· If you want to monitor the signal after the GROUP OUT

fader, turn off all PFL switches.

8 GROUP OUT Fader

Controls the level of the GROUP OUT signal.

STEREO MASTER Section

STEREO INSERT Jack

This is an input/output jack located before the STEREO

OUT master fader. You can connect a graphic equalizer

or other signal processor. This is a TRS (tip, ring, sleeve)

phone jack that carries both the send and return signal

(tip = send/out; ring = return/in; sleeve = ground).

Rear Panel Top Panel

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Controls and Functions

Owner’s Manual

NOTE

· Patching external devices via an INSERT jack requires a

special insert cable such as illustrated below (insert

cable sold separately).

2 STEREO OUT Jacks

These are XLR-3-32 type balanced output jacks that

output the mixed stereo signal. They output the signal

adjusted by the STEREO OUT master faders (7). Con-

nect these jacks to the power ampliﬁers that drive your

main speakers.

3 STEREO Level Meter

These LEDs indicate the level of the signal sent to the

STEREO OUT jacks.

The “0” segment indicates the nominal output level. The

PEAK segment lights red when the output approaches

the clipping level.

4 ON Switch/Indicator

When this switch is on, ST OUT will be enabled and the

indicator will light.

5 PFL Switch/Indicator

When the PFL switch is on, the indicator will light and

the signal before the STEREO OUT master fader is out-

put to the MONITOR OUT and PHONES jacks for moni-

toring.

6 AFL Switch/Indicator

When the AFL switch is on, the indicator will light and

the signal after the STEREO OUT master faders is out-

put to the PHONES and MONITOR OUT jacks for moni-

toring.

NOTE

· If you want to monitor the signal after the STEREO OUT

master faders, turn off all PFL switches.

7 STEREO OUT Master Faders

These adjust the signal level sent to the STEREO OUT

jacks.

MONITOR Section

MONITOR OUT Jacks

These are impedance-balanced (page 19) TRS phone-

type output jacks that you can connect to your monitor

system. These jacks output the signal before or after the

faders for the various buses. The PFL/AFL indicator (4)

and the PFL and AFL indicators in each section indicate

which signal is being output.

NOTE

· If both a PFL switch and AFL switch are on, the PFL

switch will be enabled. If you want to monitor the signals

after the faders, turn off all PFL switches.

2 PHONES Jack

Connects a pair of headphones to this stereo phone-

type output jack. These jacks output the signal before or

after the faders for the various buses.

3 MONITOR Level Meter

Indicates the level of the signal output to the MONITOR

OUT and PHONES jacks.

The “0” segment indicates the nominal output level. The

PEAK segment lights red when the output approaches

the clipping level.

4 PFL/AFL Indicator

Indicates the signal sent to the MONITOR OUT and

PHONES jacks. The PFL indicator will light when the sig-

nals before the faders (control) are being sent; the AFL

indicator will light if the signals after the faders are being

sent.

5 MONITOR Control

Controls the level of the signal output to the MONITOR

OUT jacks.

6 PHONES Control

Controls the level of the signal output to the PHONES

jack.

To the input jack of the

external processor

To the INSERT jack

Tip: OUT

Tip: IN

To the output jack of the

external processor

Sleeve (Ground)

Ring: IN

Tip: OUT

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English

Controls and Functions

Owner’s Manual

MONO Section

MONO INSERT Jack

This is an input/output jack located before the MONO

fader.

You can connect a graphic equalizer or other signal pro-

cessor. This is a TRS (tip, ring, sleeve) phone jack that

carries both the send and return signal (tip = send/out;

ring = return/in; sleeve = ground).

NOTE

· Patching external devices via an INSERT jack requires a

special insert cable such as illustrated below (insert

cable sold separately).

2 MONO OUT Jack

This is an XLR-3-32 type balanced output jack that out-

puts the MONO OUT signal.

3 ON Switch/Indicator

When this switch is on, the MONO OUT will be enabled

and the indicator will light.

4 MONO Level Meter

Three LEDs indicate the signal level after the MONO

fader. The “-20” LED will light if the output signal level

reaches -20 dB, and the “0” LED will light at nominal

level. The PEAK LED will light red when the MONO OUT

signal reaches 3 dB before clipping.

5 AFL Switch/Indicator

When the AFL switch is on, the indicator will light and

the signal after the MONO fader is output to the MONI-

TOR OUT and PHONES jacks for monitoring.

NOTE

· If you want to monitor the signal after the MONO fader,

turn off all PFL switches.

6 MONO Fader

Controls the level of the signal output to the MONO jack.

LAMP Connector

This is an XLR-4-31 type connector that supplies power to a

separately sold gooseneck lamp (e.g., Yamaha LA5000).

The IM8-40 mixer has three of these connectors, and the

IM8-32/24 mixers have two.

Rear Panel Top Panel

To the input jack of the

external processor

To the INSERT jack

Tip: OUT

Tip: IN

To the output jack of the

external processor

Sleeve (Ground)

Ring: IN

Tip: OUT

Impedance balanced:

Since the hot and cold terminals of impedance balanced

output jacks have the same output impedance, these out-

put jacks are less affected by induced noise.

English

Troubleshooting

Owner’s Manual

Troubleshooting

Power doesn’t come on.

• Is the dedicated PW8 power supply properly plugged into

an appropriate AC power outlet?

• Is the dedicated PW8 power supply properly connected

using the included power supply cable?

The PW8 itself will not power-on unless it is correctly con-

nected via the included power cable.

• If the above checks do not identify the problem, call

Yamaha for service.

The sound of the bass drum will not move forward in

the mix.

• Could you be mixing a phase-reversed signal?

Try turning on the switch to reverse the phase. If you

are capturing the sound using multiple mics, phase rever-

sal may be causing cancellation.

How can I send the pre-EQ signal to an AUX bus for

monitoring?

• You can send the pre-EQ signal to an AUX bus by

changing an internal jumper setting. Turn the AUX PRE

switch on (pre-fader). In this case, the signal will be sent

to the AUX bus even if the input channel’s ON switch is

off.

How can I monitor the signal of a GROUP bus before I

send it to the ST L/R bus?

• With the GROUP section ON switch turned off, turning the

GROUP section AFL switch on will let you monitor the AFL

signal of the GROUP bus without sending it to the ST L/R

(and MONO) bus.

How can I send a compressed signal to the ST L/R

bus while sending the uncompressed signal to

DIRECT OUT jacks for recording?

• If you connect a compressor (external device) to the

INSERT jacks and apply compression to the signal being

sent to the ST L/R bus, the signal before the compressor

will be sent to the DIRECT OUT jacks. In this case, turn off

the IM8’s COMP control.

How can I send the TALKBACK signal only to the

intercom?

• In the TALKBACK section, turn on only MATRIX 1-2 (or

MATRIX 3-4) to send the output of MATRIX 1-2 (or

MATRIX 3-4) to the intercom.

How can I play background music from a portable

audio player?

•A standard mini-phone type 2TR IN jack is provided on

the front panel, allowing you to connect your portable

audio player via a mini-plug cable.

How can I assign the MC to the MONO bus and also

record it?

• Assign the MC’s input channel to the MONO bus, and use

the REC OUT section bus assign switch to select the

MONO bus.

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