Yamaha MM1242 User Manual

MIXER

MELANGEUR

MISCHPULTE

MEZCLA

Operation Manual

Manuel d’instructions

Bedienungsanleitung

Manual de Operación

GAIN			GAIN			GAIN			GAIN			GAIN			GAIN			GAIN			GAIN			GAIN			GAIN			GAIN			GAIN
																																							MIXER
+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26		+10 –16	–60 –26
LINE			LINE			LINE			LINE			LINE			LINE			LINE			LINE			LINE			LINE			LINE			LINE
MIC			MIC			MIC			MIC			MIC			MIC			MIC			MIC			MIC			MIC			MIC			MIC
HIGH			HIGH			HIGH			HIGH			HIGH			HIGH			HIGH			HIGH			HIGH			HIGH			HIGH			HIGH					PHANTOM		POWER
HI-–15	+15		HI-–15	+15		HI-–15	+15		HI-–15	+15		HI-–15	+15		HI-–15	+15		HI-–15	+15		HI-–15	+15		HI-–15	+15		HI-–15	+15		HI-–15	+15		HI-–15	+15			+6			+6			POWER
MID			MID			MID			MID			MID			MID			MID			MID			MID			MID			MID			MID				+4			+4			ON
LO-–12	+12		LO-–12	+12		LO-–12	+12		LO-–12	+12		LO-–12	+12		LO-–12	+12		LO-–12	+12		LO-–12	+12		LO-–12	+12		LO-–12	+12		LO-–12	+12		LO-–12	+12			+2			+2			OFF
																																					0			0
MID			MID			MID			MID			MID			MID			MID			MID			MID			MID			MID			MID
																																					–2			–2
–12	+12		–12	+12		–12	+12		–12	+12		–12	+12		–12	+12		–12	+12		–12	+12		–12	+12		–12	+12		–12	+12		–12	+12			–4			–4
LOW			LOW			LOW			LOW			LOW			LOW			LOW			LOW			LOW			LOW			LOW			LOW				–7			–7
																																					–10			–10
–15	+15		–15	+15		–15	+15		–15	+15		–15	+15		–15	+15		–15	+15		–15	+15		–15	+15		–15	+15		–15	+15		–15	+15			–15			–15
AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX				–20			–20
1			1			1			1			1			1			1			1			1			1			1			1				L	R	AUX 3		AUX 4		PHONES
																																						OUTPUT LEVEL
0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P
		O			O			O			O			O			O			O			O			O			O			O			O
AUX		S	AUX		S	AUX		S	AUX		S	AUX		S	AUX		S	AUX		S	AUX		S	AUX		S	AUX		S	AUX		S	AUX		S
2		T 2			T 2			T 2			T 2			T 2			T 2			T 2			T 2			T 2			T 2			T 2			T
0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		AUX SEND 1		AUX SEND 2		MONITOR		LEVEL
AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX			AUX
3			3			3			3			3			3			3			3			3			3			3			3
0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	P	0	10	0	10	0	10	0	10
		R			R			R			R			R			R			R			R			R			R			R			R
AUX		E	AUX		E	AUX		E	AUX		E	AUX		E	AUX		E	AUX		E	AUX		E	AUX		E	AUX		E	AUX		E	AUX		E
4			4			4			4			4			4			4			4			4			4			4			4
																																					L		L		L		L
0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10		0	10	0	10	0	10	0	10
PAN			PAN			PAN			PAN			PAN			PAN			PAN			PAN			PAN			PAN			PAN			PAN
																																					R		R		R		R
L R			L R			L R			L R			L R			L R			L R			L R			L R			L R			L R			L R			0 10		0 10		0 10		0 10
	PEAK			PEAK			PEAK			PEAK			PEAK			PEAK			PEAK			PEAK			PEAK			PEAK			PEAK			PEAK		AUX RETURN 1		AUX RETURN 2		AUX RETURN 3		AUX RETURN 4
PFL			PFL			PFL			PFL			PFL			PFL			PFL			PFL			PFL			PFL			PFL			PFL			PFL		PFL		PFL		PFL
		10			10			10			10			10			10			10			10			10			10			10			10		10		10		10		10
		5			5			5			5			5			5			5			5			5			5			5			5		5		5		5		5
		0			0			0			0			0			0			0			0			0			0			0			0		0		0		0		0
		5			5			5			5			5			5			5			5			5			5			5			5		5		5		5		5
		10			10			10			10			10			10			10			10			10			10			10			10		10		10		10		10
		15			15			15			15			15			15			15			15			15			15			15			15		15		15		15		15
		20			20			20			20			20			20			20			20			20			20			20			20		20		20		20		20
		30			30			30			30			30			30			30			30			30			30			30			30		30		30		30		30
		40			40			40			40			40			40			40			40			40			40			40			40		40		40		40		40
		00			00			00			00			00			00			00			00			00			00			00			00		00		00		00		00
	1			2			3			4			5			6			7			8			9			10			11			12		L	ST		R	3	AUX SEND		4

FCC INFORMATION (U.S.A.)

1.IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!

This product, when installed as indicated in the instructions contained 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 provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/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 that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit “OFF” and “ON”, please try to eliminate 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 of 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 coaxial 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, CA 90620

*This applies only to products distributed by YAMAHA CORPORATION OF AMERICA

Dette apparat overholder det gaeldende EF-direktiv vedtrørende radiostøj.

Cet appareil est conforme aux prescriptions de la directive communautaire 87/308/CEE.

Diese Geräte entsprechen der EG-Richtlinie 82/499/EWG und/ oder 87/308/EWG.

This product complies with the radio frequency interference requirements of the Council Directive 82/499/EEC and/or 87/308/ EEC.

Questo apparecchio è conforme al D.M.13 aprile 1989 (Direttiva CEE/87/308) sulla soppressione dei radiodisturbi.

Este producto está de acuerdo con los requisitos sobre interferencias de radio frequencia fijados por el Consejo Directivo 87/308/CEE.

YAMAHA CORPORATION

IMPORTANT NOTICE FOR

THE UNITED KINGDOM

Connecting the Plug and Cord

WARNING: THIS APPARATUS MUST BE EARTHED

IMPORTANT: The wires in this mains lead are coloured in accordance with the following code:

GREEN-AND-YELLOW : EARTH

BLUE	: NEUTRAL
BROWN	: LIVE

As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings idenlifying 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 by the letter E or by the safety earth symbol or coloured GREEN and YELLOW.

The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.

* This applies only to products distributed by YAMAHA KEMBLE MUSIC (U.K.)

CANADA

THIS DIGITAL APPARATUS DOES NOT EXCEED THE “CLASS B” LIMITS FOR RADIO NOISE EMISSIONS

FROM DIGITAL APPARATUS SET OUT IN THE RADIO INTERFERENCE REGULATION OF THE CANADIAN DEPARTMENT OF COMMUNICATIONS.

LE PRESENT APPAREIL NUMERIQUE N’EMET PAS DE BRUITS RADIOELECTRIQUES DEPASSANT LES LIMITES APPLICABLES AUX APPAREILS NUMERIQUES DE LA “CLASSE B” PRESCRITES DANS LE REGLEMENT SUR LE BROUILLAGE RADIOELECTRIQUE EDICTE PAR LE MINISTERE DES COMMUNICATIONS DU CANADA.

*This applies only to products distributed by YAMAHA CANADA MUSIC LTD.

Litiumbatter!

Bör endast bytas av servicepersonal.

Explosionsfara vid felaktig hantering.

VAROITUS!

Lithiumparisto, Räjähdysvaara.

Pariston saa vaihtaa ainoastaan aian ammattimies.

ADVARSELl!

Lithiumbatter!

Eksplosionsfare. Udskiftning må kun foretages af en sagkyndig, –og som beskrevet i servicemanualen.

LTD.

Introduction

Congratulations! You are now the proud owner of a Yamaha MM1242 Mixer. Your Yamaha mixing console is a high-quality product which combines ease of operation, functionality, and convenience and will give you superior performance in a wide range of applications. MM1242 also features the great sound for which Yamaha is famous. Please read this operation manual thoroughly in order to make the most of the mixer’s many features and controls.

Features

●Twelve input channels and stereo mix output

●PFL (Pre Fader Listen) function allows you to monitor any channel input and ST L, R AUX 3, 4 output through monitor output or headphones.

●All input channels are available for both microphone level input and line-level input, making connections very easy.

●Built-in phantom power allows you to connect condenser microphones.

●Four AUX SEND connectors and four ST AUX RTN connectors allow you to connect up to four external effects units.

Contents
Precautions ............................................................................	1
Front Panel Controls ..............................................................	2
Input Channel ...................................................................	2
Master Section .................................................................	4
Rear Panel ........................................................................	6
Application Example .............................................................	7
Specifications ........................................................................	8
General Specifications .....................................................	8
Input Specifications .........................................................	9
Output Specifications .......................................................	9
Dimensions ......................................................................	9
Block and Level Diagrams ............................................	10

Precautions

1.Location

Keep the unit away from locations where it is likely to be exposed to high temperatures or humidity — such as near radiators, stoves, etc. Also avoid locations which are subject to excessive dust accumulation or vibration which could cause mechanical damage and locations subject to strong electromagnetic fields, such as close to broadcast equipment.

2.Ventilation

The unit has ventilation slots on the side and bottom panels. Do not block these vents.

3.Avoid Physical Shocks

Strong physical shocks to the unit can cause damage. Handle it with care.

4.Do Not Open the Case or Attempt Repairs or Modifications Yourself

This product contains no user-serviceable parts. Refer all maintenance to qualified Yamaha service personnel. Opening the case and/or tampering with the internal circuitry voids the warranty.

Dette apparat overholder det gaeldende EF-direktiv vedtrørende radiostøj.

Cet appareil est conforme aux prescriptions de la directive communautaire 87/308/CEE.

Diese Geräte entsprechen der EG-Richtlinie 82/499/EWG und/ oder 87/308/EWG.

This product complies with the radio frequency interference requirements of the Council Directive 82/499/EEC and/or 87/308/ EEC.

Questo apparecchio è conforme al D.M.13 aprile 1989 (Direttiva CEE/87/308) sulla soppressione dei radiodisturbi.

Este producto está de acuerdo con los requisitos sobre interferencias de radio frequencia fijados por el Consejo Directivo 87/308/CEE.

YAMAHA CORPORATION

5.Always power off before making connections

Always turn the power OFF before connecting or disconnecting cables. This is important to prevent damage to the unit itself as well as other connected equipment.

6.Handle Cables Carefully

Always plug and unplug cables — including the AC power cord — by gripping the connector, not the cord.

7.Clean With a Soft Dry Cloth

Never use solvents such as benzine or thinner to clean the unit. Wipe clean with a soft, dry cloth.

8.Always Use the Correct Power Supply

Make sure that the power supply voltage specified on the rear panel matches your local AC mains supply. Also make sure that the AC mains supply can deliver more than enough current to handle all equipment used in your system.

IMPORTANT NOTICE FOR

THE UNITED KINGDOM

Connecting the Plug and Cord

IMPORTANT: The wires in this mains lead are coloured in accordance with the following code:

BLUE	: NEUTRAL
BROWN	: LIVE

As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:

The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.

The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.

Making sure that neither core is connected to the earth terminal of the three pin plug.

*This applies only to products distributed by YAMAHA KEMBLE MUSIC (U.K.) LTD.

1

Front Panel Controls

■ Input Channel

GAIN

			1
	+10 –16	–60 –26
	LINE		2
	MIC
	HIGH
	HI-–15	+15
	MID
	LO-–12	+12	3
	MID
	–12	+12
	LOW
	–15	+15
	AUX
	1
	0	10	P
			O
	AUX		S
	2		T
	0	10	4
	AUX
	3
	0	10	P
			R
	AUX
			E
	4
	0	10
	PAN
			5
	L	R	6
		PEAK
	PFL		7
			10

5 0

5

10

15

20

30

40

00 8

1GAIN control

This control adjusts the input sensitivity of each input channel from –16dB to –60dB for microphone source through the XLR input connectors, and from +10dB to –26dB for line source through the phone jack input connectors. For optimum performance, adjust this GAIN control so that the PEAK indicator LED lights occasionally.

2LINE/MIC switch

This switch toggles between MIC IN. Push this switch in (to MIC) when a microphone is connected to the MIC IN connector. Set this switch to LINE when a line source is connected to the LINE IN connector.

3EQ

The equalizer section provided on each input channel consists of LOW, LO-

MID, HI-MID and HIGH controls at the following frequencies with the maximum range of ± 15dB.

HIGH : 12kHz HI-MID : 3kHz LO-MID : 300Hz LOW : 80Hz

Frequency response will be flat when each control is set to the center.

		+20
		+15
	(dB)	+10
		+5
	RESPONSE
		0
		–5
		–10
		–15
		–20
		50 100 200 500 1k 2k 5k 10k 20k
		FREQUENCY (Hz)

4AUX send controls

Each AUX control determines the level of the signal sent from the input channels to the correspondingly-numbered AUX mixing bus.

•AUX 1 and AUX 2 are factory pre-wired for post-fader operation, so the AUX 1 and AUX 2 signals are affected by the setting of the channel fader.

•AUX 3 and AUX 4 are factory pre-wired for pre-fader operation, so the AUX 3 and AUX 4 signals are not affected by the setting of the channel fader. Therefore, the signal can be output either to AUX 3 or AUX 4 as an

auxiliary output, instead of using the stereo outputs.

2

5PAN control

The PAN control determines the position in the stereo sound field at which the sound from that channel is heard, by distributing signal from each channel to STEREO L and R buses.

6PEAK indicator

The PEAK indicator LED lights in red when the pre-EQ, post-EQ, or post-fader signal of the corresponding channel’s input reaches a level 3dB below the clipping level.

7PFL switch

Press this switch to monitor the pre-fader input channel signal through the MONITOR OUT or the PHONES connector.

This is useful when you wish to monitor only the signal

from a particular channel, or take a countermeasure for a problem.

8Fader

This is the main level control for each input channel. It determines the level of the signal sent from the corresponding input channel to the master stereo bus. The settings of the input channel faders determine the “mix” or balance of sound levels between the instruments or other sources connected to the inputs.

Lower the faders of unused channels to the bottom.

PHANTOM

		OFF	(+48V)
		ON
	(MIC IN)	PHANTOM
	(PHANTOM)				PEAK
MIC IN		HA
1-12
LINE IN	HA		BA	EQ	BA	BA
1-12		GAIN	LINE
			MIC
			LOW	LO-MID HI-MID	HIGH

PAN

AUX 1

AUX 2

AUX 3

AUX 4

(+V)

PFL

STEREO	AUX	CTRL
L R 1 2 3 4		PFL PFL

3

■ Master Section

MIXER

7
			PHANTOM		POWER
		+6			+6			POWER
		+4			+4			ON
		+2			+2			OFF
		0			0
6		–2			–2
		–4			–4
		–7			–7
5		–10			–10
		–15			–15
		–20			–20
		L	R	AUX 3		AUX 4		PHONES
			OUTPUT LEVEL
	AUX SEND 1		AUX SEND 2		MONITOR		LEVEL
4
	0	10	0	10	0	10	0	10
3		L		L		L		L
	0	10	0	10	0	10	0	10
		R		R		R		R
	0	10	0	10	0	10	0	10
2	AUX RETURN 1		AUX RETURN 2		AUX RETURN 3		AUX RETURN 4
	PFL		PFL		PFL		PFL
		10		10		10		10
		5		5		5		5
		0		0		0		0
		5		5		5		5
		10		10		10		10
		15		15		15		15
		20		20		20		20
		30		30		30		30
		40		40		40		40
		00		00		00		00
	L		ST	R	3	AUX SEND		4

1D

1ST faders

The stereo master faders independently adjust the level of the left and right channel main stereo buss signals appearing at the STEREO OUT connectors.

The OUTPUT LEVEL L, R meters allow you to monitor the L and R outputs.

2 ST PFL switches

Turning this switch ON sends the pre-fader ST L and R

8signals to the MONITOR OUT and PHONES.

3 AUX RETURN controls

These controls adjust the level of the L and R signals that

9are received at the rear-panel ST AUX RTNs 1–4. (Use a stereo-type phone plug connector for ST AUX RTN 1–4.) After this controls, the signals are sent to the L and R stereo bus (STEREO OUT). Therefore, you can use the ST AUX RTN as auxiliary inputs, as well as effects returns.

STEREO

L R

0	ST AUX RTN	INV
		L
A	1 4 –10dB
B		INV
		R

4AUX SEND controls

These adjust the overall output level appearing at AUX SEND1 and 2.

5 OUTPUT LEVEL AUX 3, 4 meters

CThese meters show the level of output signal appearing at the AUX SEND 3 and 4.

6OUTPUT LEVEL L, R meters

These meters show the level of output signal appearing at the STEREO OUT connector.

7PHANTOM indicator

The PHANTOM indicator LED lights when the Phantom power is ON.

8POWER indicator

The POWER indicator LED lights when the power is ON.

9POWER switch

Flip up to turn the power ON.

It is a rule that first you turn off the power to the devices (a power amplifier, in many cases) closest to the speakers before turning off the power to the console.

4

0PHONES jack

Connect the headphones here.

You can monitor the following signals:

— Signals available for monitoring —

1. Post-EQ signal

(when the corresponding channel PFL switch is ON) 2. Pre-fader ST signal

(when the corresponding stereo L/R PFL switch is ON) 3. Pre-AUX SEND 3/4-fader signal

(when the corresponding AUX send 3/4 PFL switch is ON)

AMONITOR control

This control adjusts the level of the signal output from the MONITOR OUT.

BPHONES LEVEL control

The PHONES control adjusts the level of the signal sent to the PHONES jack.

CAUX SEND 3, 4 PFL switches

Turning this switch ON will allow you to monitor the signal output to AUX SEND 3 and 4 via the MONITOR OUT or headphones.

DAUX SEND 3, 4 faders

These faders adjust the AUX SEND 3 and 4 output levels. You can also use these to adjust the level of an auxiliary output.

STEREO	AUX	CTRL
L R 1 2 3 4		PFL PFL				METER
			SUM	INV			L
			(+V)			(MONITOR)	STEREO OUT
		PFL				METER	+4dB
			SUM	INV			R
			(+V)			(MONITOR)
		PFL
			SUM			INV	AUX SEND
							1,2 +4dB
						AUX SEND 1
						METER
			SUM			INV	AUX SEND
							3,4 +4dB
			(+V)	(ST OUT)
		PFL
				+	SUM	INV	L
		SUM	INV			MONITOR	MONITOR
							OUT +4dB
				+	SUM	INV
							R
						INV	PHONES
						LEVEL
						INV

5

■ Rear Panel

73

	AUX SEND +4dB									MIC IN
4	3	2	1	12	11	10	9	8	7	6	5	4	3	2	1
4	3	2	1
ON															1
OFF
PHANTOM	ST AUX RTN –10dB
				12	11	10	9	8	7	6	5	4	3	2	1
L										LINE IN					2
R
MONITOR	R		L
	STEREO OUT +4dB
OUT +4dB

65 4

	1 MIC IN connectors	6 MONITOR OUT
	These are XLR-type connectors to connect microphones.	These are unbalanced phone jacks used to connect
	(Pin assignment - 1: GND, 2: hot, 3: cold)	monitor speakers.
	Impedance range is 50Ω to 600Ω .	You can monitor the following signals:
	Turn the PHANTOM switch ON to apply +48V DC to Pin	— Signals available for monitoring —
	2 and 3 of these connectors.
		1. Post-EQ signal
	2 LINE IN	(when the corresponding channel PFL switch is ON)
	These are unbalanced phone jacks used to connect line	2. Pre-fader ST signal
	sources. (Impedance: 600Ω )	(when the corresponding stereo L/R PFL switch is ON)
	3 AUX send jacks	3. Pre-AUX SEND 3/4-fader signal
		(when the corresponding AUX send 3/4 PFL switch is
	These are unbalanced phone jacks.
		ON)
	(T: hot, R: cold, S: GND)
	Nominal output level and impedance is +4dB/600Ω .	7 PHANTOM switch
	4 ST AUX RTN jacks	This switch is used to turn on/off all channels’ phantom
		power simultaneously. Set this switch to ON when using
	These are stereo type phone jacks.
		condenser microphones to apply +48V DC to Pin 2 and 3
	Nominal output level and impedance is –10dB/600Ω .
		of all the MIC IN connectors 1–12.
	Usually, the output from effects units such as delay and	Be sure to turn this switch OFF when the phantom power
	reverb are returned to the main stereo mix via these jacks.
		is not in use.
	However, you can use these as auxiliary inputs.
		* You may connect balanced dynamic microphones or
	5 STEREO OUT	line sources when this switch is ON. However,
		connecting, unbalanced devices, or devices in which
	These are XLR type connectors used to connect a power
		the center of the transformer is grounded may cause
	amplifier. (Pin assignment - 1: GND, 2: hot, 3: cold)
		hum noise or malfunction.
		The phantom power supply can provide a maximum of
		40 mA of current. Check the specifications of your con-
		denser mics, and make sure that the total current con-
		sumption is no more than 40 mA.

MICROPHONE CABLES AND

MICROPHONES CONNECTION

TO PREVENT HAZARD OR DAMAGE,

ENSURE THAT ONLY MICROPHONE

CABLES AND MICROPHONES

DESIGNED TO THE IEC268-15A

STANDARD ARE CONNECTED.

6

Application Example

Front of house main speakers

Stage monitors

Power amp

Power amp

		Effects processor
		88
Graphic EQ		88
Headphone
MONITOR OUT	AUX	AUX	AUX	AUX	STEREO
	SEND1	SEND2	RTN2	RTN1	OUT
				MIXER
				PHANTOM	POWER

OUTPUT LEVEL

Mic and line inputs 1–12

7

Specifications

■ General Specifications

Maximum output level	+24dB* (ST OUT L/R)						@600Ω	, 0,5% THD at 1kHz (Balanced)
	+20dB* (AUX SEND 1–4)						@600Ω	, 0,5% THD at 1kHz (Unbalanced)
Total harmonic distortion	0.1% @+14dB* 20Hz–20kHz
	(ST OUT L/R @600Ω , AUX SEND 1–4 @600Ω )
Frequency response	20Hz–20kHz +1dB, –2dB @+4dB* (MIC *IN=GAIN MIN)
	(ST OUT L/R @600Ω , AUX SEND 1–4 @600Ω )
Hum and noise	–127dB*		Equivalent input noise
(Average, Rs=150Ω )	–95dB*		Residual output noise (ST OUT L/R @600Ω , AUX SEND 1–4 @600Ω )
(Measured With DIN AUDIO)
	–78dB*(ST OUT L/R)								Master fader:	nominal
									All channel fader:	minimum
	–63dB*(67dB S/N)(ST OUT L/R)								Master fader:	nominal
									One channel fader:	nominal
	–78dB*(AUX SEND 1–4)								Master level control:	nominal
									All channel AUX level control: minimum
	–63dB*(67dB S/N)(AUX SEND 1–4)								Master level control:	nominal
									One channel fader:
									One channel AUX control:	nominal
Maximum voltage gain	84dB	MIC IN			→	ST OUT
	50dB	LINE IN			→	ST OUT
	86dB	MIC IN			→	AUX SEND1, 2
	80dB	MIC IN			→	AUX SEND3, 4
	90dB	MIC IN			→	MONITOR OUT
	30dB	AUX RETURN				→	ST OUT
Crosstalk	–70dB adjacent input channels
	–60dB input to output (except between ST L and R)
	–55dB input to output (between ST L and R)
Gain control (MIC IN)	44dB	variable range
Gain control (LINE IN)	36dB	variable range
Input channel equalization	HIGH		±	12dB		12kHz shelving (max. ± 15dB)
	HI-MID		±	12dB		3kHz peaking
	LO-MID		±	12dB		300Hz peaking
	LOW		±	12dB		80Hz shelving (max. ± 15dB)
LED meters	0dB=+4dB* Output level
Channel PEAK indicators	Red LED on each channel lights when pre-EQ, post-EQ, or post-fader signal reaches
	3dB below clip level.
Phantom power	+48V, DC
Power requirements	US & Canadian Models:						AC 120V, 60Hz
	General Model:						AC 230V, 50Hz
	British Model:						AC 240V, 50Hz
Power consumption	US & Canadian Models:						45W
	General Model:						55W
	British Model:						55W
Dimensions (W × H × D)	483 ×	130.2 ×		320.6 mm (19" × 5.1" × 12.6")
Weight	8.5kg

* 0dB=0.775Vrms.

8

■ Input Specifications

		Gain	Input	Nominal			Input level		Connector
	Input
								Maximum non-
		Trim	impedance	impedance		Sensitivity	Nominal level		type
								clipping level
		MAX	4kΩ	50–600Ω		–80dB	–60dB	–40dB	XLR-3-31 type
	MIC IN			microphone		(77.5µ V)	(775µ V)	(7.75mV)	Balanced
	(1–12)	MIN				–36dB	–16dB	+4dB
						(12.3mV)	(123mV)	(1.23V)
		MAX	10kΩ	600Ω	line	–46dB	–26dB	–6dB	Phone jack
	LINE IN					(3.88mV)	(38.8mV)	(388mV)	Unbalanced
	(1–12)	MIN				–10dB	+10dB	+20dB
						(245mV)	(2.45V)	(7.75V)
	AUX RETURN		10kΩ	600Ω	line	–26dB	–10dB	—	Stereo phone jack
	(1–4)					(38.8mV)	(245mV)

0dB=0.775Vrms.

■ Output Specifications

		Output	Nominal		Output level
	Output						Connector type
		impedance	impedance		Nominal level	Maximum non-
						clipping level
	ST OUT (L/R)	150Ω	600Ω	Lines	+4dB (1.23V)	+24dB (12.3V)	XLR-3-32 type
							(Balanced)
	AUX SEND (1–4)	75Ω	600Ω	Lines	+4dB (1.23V)	+19dB (6.91V)	Phone jack
							(Unbalanced)
	MONITOR OUT (L/R)	75Ω	600Ω	Lines	+4dB (1.23V)	+19dB (6.91V)	Phone jack
							(Unbalanced)
	HEAD PHONE	100Ω	40Ω	Phones	3mW	120mW	Stereo phone jack
							(Unbalanced)

0dB=0.775Vrms.

■ Dimensions

18.5

H: 130.2 104.2

7.5

3 . 43

	6
226	.
	320
	D:

440

W: 483

73.5

2 . 8

Units: mm

Specifications and appearance subject to change without notice.

9

■ Block and Level Diagrams

		ON				STEREO
	PHANTOM
		OFF	(+48V)
	(MIC IN)	PHANTOM				L R
	(PHANTOM)				PEAK
MIC IN		HA
1-12
LINE IN	HA		BA	EQ	BA	BA
						PAN
1-12		GAIN	LINE
			MIC	MID-LO MID-HI	HIGH	AUX 2
			LOW
						AUX 1
						AUX 3
						AUX 4
						(+V)
						PFL
			ST AUX RTN			INV
			1 4 –10dB			L
						INV
						R

AUX	CTRL
1 2 3 4	PFL PFL				METER
		SUM	INV			L
		(+V)			(MONITOR)	STEREO OUT
	PFL				METER	+4dB
		SUM	INV			R
		(+V)			(MONITOR)
	PFL
		SUM			INV	AUX SEND
						1,2 +4dB
					AUX SEND 1
					METER
		SUM			INV	AUX SEND
						3,4 +4dB
		(+V)	(ST OUT)
	PFL
			+	SUM	INV	L
	SUM	INV			MONITOR	MONITOR
						OUT +4dB
			+	SUM	INV
						R
					INV	PHONES
					LEVEL
					INV

(dB)	LINE(Min)		ST OUT	(dB)
+10			AUX SEND	+10
			MONITOR
0			AUX	0
–10	MIC(Min)	AUX RETURN	STEREO	–10
–20	LINE(Max)			–20
–30				–30
–40				–40
–50				–50
–60	MIC(Max)			–60

10

Français

MELANGEUR

MANUEL D’INSTRUCTIONS

Introduction

Félicitations! Vous voilà maintenant le fier détenteur d’une melangeur MM1242 de Yamaha. C’est un produit de grande qualité qui allie facilité d’emploi, fonctionnalité et convivialité. Ses performances sont exceptionnelles dans un grand nombre de domaines. Quant à sa sonorité, seule toute l’expérience de Yamaha pouvait l’obtenir. Veuillez lire ce manuel attentivement afin de pouvoir tirer le meilleur parti des nombreuses caractéristiques et fonctions de cette console de mixage.

Caractéristiques

●Douze canaux d’entrée et sortie stéréo mix

●Fonction PFL (Pre Fader Listen/écoute avant curseur): elle vous permet de contrôler n’importe quel canal d’entrée ainsi que les sorties ST L, R, AUX 3, 4 via moniteur ou casque.

●Tous les canaux d’entrée acceptent une entrée micro ou une entrée ligne ce qui facilite considérablement les connexions.

●L’alimentation fantôme vous permet de brancher des microphones à condensation.

●Quatre connecteurs AUX SEND et quatre connecteurs ST AUX RTN vous permettent de brancher jusqu’à quatre processeurs d’effets externes.

Table des matières
Précautions ............................................................................	1
Commandes du panneau avant ..............................................	2
Canal d’entrée ..................................................................	2
Section Master .................................................................	4
Panneau arrière ................................................................	6
Exemple d’utilisation .............................................................	7
Caractéristiques .....................................................................	8
Caractéristiques générales ................................................	8
Caractéristiques d’entrée ..................................................	9
Caractéristiques de sortie .................................................	9
Dimensions ......................................................................	9
Schémas de connexions et de niveaux ...........................	10