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MIXING CONSOLE Owner’s Manual Keep This Manual For Future Reference. E  i Precautions Contents 1. Avoid excessive heat, humidity, dust and vibration 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. Introduction ......................................1 2. Ventilation The unit has ventilation slots on the top, rear and bottom panels. Do not block these vents. Variable/Fix select section ....................................6 Mix section ...........................................................6 ST (Stereo) section ...............................................9 AUX RETURN section .......................................10 MATRIX section .................................................11 C-R MONI (Control room monitor) section PHONES (headphones) section ........................12 TAPE IN section .................................................13 TALKBACK section ...........................................14 METER SELECT section ....................................15 Meter bridge .......................................................15 3. Avoid physical shocks, liquid and small metal objects Strong physical shocks to the unit can cause damage. Handle it with care. Do not place a container with liquid or small metal objects on top of this unit. Liquid or metal objects inside this unit are a fire and electrical shock hazard. 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. 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. Features .................................................................1 Front Panel ........................................2 Monaural input channels .....................................2 Stereo input channels ...........................................4 Master Section ..................................6 Rear Panel .......................................16 GA Diversity Function .....................19 What is GA Diversity? ........................................19 Setting the GA Diversity function .....................19 Specifications ..................................20 General specifications ........................................20 Input specifications ............................................21 Output specifications .........................................21 Dimensions .........................................................22 Block and Level diagram ....................................23 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 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 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.) LTD. MC32/12, MC24/12—Owner’s Manual  Introduction 1 Introduction Thank you for choosing the Yamaha MC32/12 or MC24/12 mixing console. Please read this manual thoroughly to take best advantage of the console and extend its useful life. Notes: This manual has been written on the assumption that you already understand the basic operation and technical terminology of mixing consoles. Descriptions of MC24/12 specifications appear in brackets ({}) if they differ from the MC32/12. Features • The MC32/12 provides 28 monaural and 2 stereo input modules {the MC24/12 provides 20 monaural and 2 stereo input modules}. The output channels comprise stereo outputs, 10 mix outputs, and two matrix outputs, and support a wide range of applications, from SR (sound reinforcement) to facility acoustics. • Each monaural input channel offers a 26 dB pad, HPF, phase switch, 4-band EQ (HI-MID and LOMID frequencies are variable), and a 100 mmlong full-stroke fader. Also, phantom power can be turned on and off for every group of four inputs. This routing can be used as a conventional group bus. In this way, you can configure the bus for a specific purpose. • The console has two independent matrixes. You can mix MIX buses 1–4 and the stereo bus individually at the levels you desire and output them from the MATRIX OUT 1–2 jacks. This routing can be used as a mix for the foldback or for individual speakers and amplifiers. • The INSERT I/O jacks are provided for all monaural input channels, the stereo bus, and MIX buses 1–4. You can insert an external effect processor, if necessary. • Four stereo AUX returns and TAPE IN jacks are provided as standard. • Talkback signals can be sent to any of MIX buses 1–4, MIX buses 5–10, and the stereo bus. • The master section of the console is located in the center area of the unit, facilitating operation. • C-R monitor output enables you to select PFL/ AFL or TAPE IN as a monitoring source. • The master section provides output channels for MIX buses 1–10, with EQs and 100 mm-long faders. • The console’s sturdy finish and rugged design assure its durability even under severe conditions and rough on-site usage. • Each input channel and four stereo AUX returns include a PFL switch, and stereo bus, MIX buses 1–10, and Matrix 1–2 has an AFL switch, enabling you to monitor the input/output sources quickly. • Using the GA Diversity function enables you to set MIX buses 1–4 to Variable mode or Fix mode individually. In Variable mode, you can change the level of the signals sent out from the input channels. This routing can be used as a conventional AUX bus. In Fix mode, the level of the signals sent out from the input channels is fixed. MC32/12, MC24/12—Owner’s Manual  2 Front Panel Front Panel GAIN 26dB +10 –16 5 –34 –60 PEAK HIGH 80 1 2 Monaural input channels 3 4 The MC32/12 {MC24/12} has 28 {20} monaural input channels. They are located on both sides of the master section and feature the same specifications. A Pad switch –15 +15 This switch is used to attenuate input signals by 26 dB. Press down the switch to turn the pad on. HI-MID 400 8k –15 +15 LO-MID 80 1.6k –15 +15 6 LOW This control knob is used to adjust input sensitivity. The adjustable range is –16 dB to –60 dB when the pad switch 1 is turned off, and +10 dB to –34 dB when the pad switch is turned on. C Ø (Phase) switch –15 +15 EQ 7 This switch reverses the phase of input signals. Press down this switch to reverse the phase. D High pass filter switch M1 0 This high pass filter is used to cut the frequency range below 80 Hz with a slope of 12 dB/ oct. Press down the switch to turn the high pass filter on. 10 M2 8 B GAIN control ON 0 E PEAK indicator 10 M3 ON 0 9 10 M4 This indicator lights up when the level of signals that pass the EQ reaches 3 dB below the clipping level. ON 0 F EQ controls (HIGH/HI-MID/LO-MID/LOW) 10 M5 This 4-band equalizer provides ± 15 dB of cut and boost over each range, with the center frequencies and types shown in the following table. The frequencies for HI-MID and LOMID are variable. ON 0 10 M6 PRE 0 10 Band M7 0 0 10 M8 PRE 0 A 10 M9 0 ST peaking (parametric) 80 Hz–1.6 kHz peaking (parametric) 100 Hz shelving This switch is used to turn equalization on and off. Press down the switch to turn equalization on. D H M1–M4 mix level controls PAN C 400 Hz–8 kHz LO-MID B 10 L shelving G EQ switch PRE 0 10 kHz Type HI-MID LOW 10 M10 HIGH Center frequencies R ON PFL E These controls are used to route the post fader signals from the input channel to MIX buses 1–4. Note: When you press down the M1–M4 switches to the FIX position in the Variable/ Fix select section (see page 6), the output level of the signals routed to the MIX buses will be fixed and the corresponding M1–M4 mix level controls will be disabled. 10 5 0 5 10 F 20 30 40 50 60 MC32/12, MC24/12—Owner’s Manual  Monaural input channels 3 I ON switches These switches are used to turn on and off the signals routed from the input channel to MIX buses 1–4. Note: When these switches are set to off, no signals will be sent from the input channel to the corresponding MIX buses regardless of the setting of the switches in the Variable/Fix select section (see page 6). J M5–M10 mix level controls These controls route the input channel signals to MIX buses 5–10. Use the PRE switches K to select pre- or post-fader. K PRE switches These switches are used to select pre- or post-fader for signals sent from the input channel to MIX buses 5–10. Each switch is effective for one pair of MIX buses: 5/6, 7/8, or 9/10. When you turn these switches on, the pre-fader signals will be sent to the corresponding MIX bus pair. L PAN control This control is used to set the stereo image of signals sent from the input channel to the ST (stereo) buses. M ST (Stereo) switch When you turn this switch on, input channel signals are sent to the ST buses. N ON switch This switch is used to turn on and off the corresponding input channel module. When this switch is turned off, no signals are sent from the corresponding input channel to the ST buses and MIX buses 1–10. However, using the PFL switch O will enable you to monitor the signals via the C-R MONITOR OUT jacks or PHONES jack. O PFL (Pre-fader Listen) switch When you turn this switch on, the pre-fader signals of the input channel are routed to the PFL bus, and you are able to monitor the signals via the C-R MONITOR OUT jacks or PHONES jack. P Channel fader This fader is used to adjust the level of the input channel signals. This fader setting affects the level of the signals routed to the ST buses, MIX buses 1–4, and MIX buses 5–8 (when the PRE switches are turned off). MIX MIX PFL (FIX) (VARIABLE) 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L R CTL +48V PHANTOM EQ M1 ø HIGH f GAIN ON M2 ON M3 ON M4 f 80 26dB ON ST LR 4-Stage EQ HPF LOW HA LO-MID g PAD HI-MID g INPUT A 1-12, 17-24/17-32 INPUT B PEAK ON INSERT I/O M5 PRE M6 M7 PRE M8 M9 PRE M10 ST PAN PFL Signal flow of the monaural input channel MC32/12, MC24/12—Owner’s Manual  4 Front Panel Stereo input channels GAIN 1 +10 2 –34 PEAK 80 3 A GAIN control HIGH –15 This control is used to adjust input sensitivity. The adjustable range is +10 dB to –34 dB. +15 B PEAK indicator HI-MID –15 +15 4 LO-MID –15 –15 This high pass filter is used to cut the frequency range below 80 Hz with a slope of 12 dB/ oct. +15 EQ 5 D EQ controls (HIGH/HI-MID/LO-MID/LOW) This 4-band equalizer provides ± 15 dB of cut and boost over each range, with the center frequencies and types shown in the following table. M1 10 M2 This indicator lights up when the level of signals that have been processed by the EQ reaches 3 dB below the clipping level. C High pass filter switch +15 LOW 0 The MC32/12 and MC24/12 provide two stereo input channel modules. Use the paired INPUT 13/14 and 15/16 jacks (see page 17, rear panel 5) to input stereo signals. If you connect signals only to the 13L (MONO) jack or 15L (MONO) jack, the same signal will be sent t the o M1–4 and ST buses. ON Band 6 0 M3 ON 0 M4 0 M5 HIGH 7 3 kHz peaking LO-MID 800 Hz peaking 10 LOW 100 Hz shelving E EQ switch This switch is used to turn the equalization on and off. F M1–M4 mix level controls 10 M7 0 10 M8 PRE 0 shelving HI-MID PRE 0 10 kHz ON 10 M6 9 These controls are used to route the post fader signals from the stereo input channel to MIX buses 1–4. When stereo signals are input, the L channel signal will be sent to MIX buses 1, 3, and the R channel signal will be sent to MIX buses 2 and 4. 10 M9 0 Note: When you press down the M1–M4 switches to the FIX position in the Variable/ Fix select section (see page 6), the output level of signals sent to the MIX buses will be fixed and the corresponding M1–M4 mix level controls will be disabled. 10 M10 PRE 0 10 BAL 0 L A Type 10 ON 0 8 Center frequencies 10 ST G ON switches (M1–M4) B These switches are used to turn on and off the signals routed from the stereo input channel to MIX buses 1–4. C Note: When these switches are set to off, no signals are sent from the stereo input channel to the corresponding MIX buses regardless of the setting of the switches in the Variable/Fix select section (see page 6). D These control knobs route the stereo input channel signals to MIX buses 5–10. Stereo input signals are mixed into a monaural signal and sent to MIX buses 5–10. Use the PRE switches 9 to select pre- or post-fader. R ON PFL 10 5 H M5–M10 mix level controls 0 5 10 20 30 40 50 60 MC32/12, MC24/12—Owner’s Manual  Stereo input channels 5 I PRE (Pre-fader) switches These switches are used to select pre- or post-fader for signals sent from the stereo input channel to MIX buses 5–10. Each switch is effective for one pair of MIX buses:5/6, 7/8, or 9/10. When you turn these switches on, the pre-fader signals are sent to the corresponding MIX bus pair. J BAL (Balance) control This control is used to adjust the left and right balance of signals sent from the stereo input channel to the ST bus. K ST (Stereo) switch When you turn this switch on, the stereo input channel signals will be sent to the ST bus. If you connect monaural signals to the 13L (MONO) jack or 15L (MONO) jack (see page 17, rear panel 5), the same signals will be sent to both L and R channels. L ON switch This switch is used to turn on and off the corresponding stereo input channel. When this switch is turned off, no signals are sent to the ST bus and MIX buses 1–10. However, using the PFL switch M will enable you to monitor the signals via the C-R MONITOR OUT jacks or PHONEs jack. M PFL (Pre-fader listen) switch When you turn this switch on, the pre-fader signals of the stereo input channel are routed to the PFL bus, and you can monitor the signals via the C-R MONITOR OUT jacks or PHONES jack. N Channel fader This fader is used to adjust the level of the stereo input channel signals. This fader setting affects the level of the signals routed to the ST bus, MIX buses 1–4, and MIX buses 5–8 (when the PRE switches are turned off). MIX MIX (FIX) (VARIABLE) PFL 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L R CTL PFL 14R, 16R PAD HA HPF EQ PEAK LOW HIGH 80 14/13, 16/15 4-Stage EQ HPF LO-MID HA HI-MID PAD GAIN 13L(MONO), 15L(MONO) ST LR ON ON M1 ON M2 ON M3 ON M4 4-Stage EQ PRE M5 M6 PRE M7 M8 PRE M9 M10 ST BAL PFL Signal flow of the stereo input channel MC32/12, MC24/12—Owner’s Manual  6 Master Section Master Section Variable/Fix select section The MC32/12 and MC24/12 feature a GA (Group/Aux) diversity function, which enables you to use the MIX bus 1–4 signals as group bus signals or AUX bus signals. This section of the console allows you to select whether you wish to use MIX buses 1–4 as group buses or AUX buses. A M1–M4 switches These switches are used to select whether the level of signals sent from the input channels to MIX buses 1–4 will be fixed (FIX) or variable (VARIABLE). ■ When FIX is on: VARIABLE / The selected MIX bus(es) function as a group bus. The level of the signal from each input channel will be fixed, and the M1–M4 mix level controls of the input channels that correspond to the MIX buses will be disabled. FIX M1 FIX M2 FIX 1 ■ When FIX is off: M3 FIX The selected MIX bus(es) function as an AUX bus. Signals that pass through the M1–M4 mix level controls of each input channel (see page 2, monaural input channel 8, and page 4, stereo input channel 6) are sent to the corresponding MIX buses. M4 FIX Mix section This section consists of the output channels that handle MIX bus 1–10 signals individually. Signals that pass these output channels are output from MIX OUT 1–10 jacks (see page 17, rear panel 6), and also routed to the AFL bus. MIX bus 1–4 signals are also routed to the ST bus and Matrixes 1/2. HIGH 1 HIGH –15 +15 MID 300 6k –15 +15 +15 –15 +15 EQ PAN R TO ST 5 300 6k –15 +15 –15 +15 –15 +15 EQ PAN L R HIGH –15 +15 MID 300 6k –15 +15 LOW TO ST +15 EQ PAN L R TO ST –15 +15 MID 300 6k –15 +15 LOW –15 HIGH +15 EQ PAN L –15 +15 MID 300 6k –15 +15 LOW –15 HIGH +15 –15 +15 MID 300 6k –15 +15 LOW –15 HIGH +15 –15 +15 MID 300 6k –15 +15 LOW –15 HIGH +15 –15 +15 MID 300 6k –15 +15 LOW –15 HIGH 300 6k –15 +15 LOW –15 +15 –15 +15 MID 300 6k –15 +15 –15 +15 –15 +15 EQ EQ EQ EQ EQ EQ TO ST AFL AFL AFL AFL AFL AFL AFL AFL 10 10 10 10 10 10 10 10 10 10 5 5 5 5 5 5 5 5 5 5 0 0 0 0 0 0 0 0 0 0 5 5 5 5 5 5 5 5 5 5 10 10 10 10 10 10 10 10 10 10 20 20 20 20 20 20 20 20 20 20 30 30 30 30 30 30 30 30 30 30 40 40 40 40 40 40 40 40 40 40 50 60 50 60 50 60 50 60 50 60 50 60 50 60 50 60 50 60 50 60 M2 2 R AFL M1 1 LOW AFL 6 MC32/12, MC24/12—Owner’s Manual HIGH MID LOW L 4 –15 MID LOW 2 3 HIGH M3 M4 M5 M6 M7 M8 M9 M10 5 6  Mix section 7 ■ M1–M4 These modules function as output channels for either a group bus or an AUX bus, depending on the setting of the switches in the Variable/Fix select section. The MIX bus 1–4 signals that pass these output channels can be routed to MIX OUT 1–4 jacks, ST bus, AFL bus, and Matrixes 1/2. ■ M5–M10 These modules function as output channels for an AUX bus. The MIX bus 5–10 signals that pass these output channels can be routed to MIX OUT 5–10 jacks and AFL bus. A EQ controls (HIGH/MID/LOW) This 3-band equalizer provides ±15 dB of cut and boost over each frequency range of the MIX bus signals, with center frequencies and types shown in the following table. The frequencies for MID are variable. Band HIGH Center frequencies 10 kHz MID 300–6 kHz LOW 100 Hz Type shelving peaking (parametric) shelving B EQ switch This switch is used to turn the equalization on and off. C PAN control (applied only to M1–M4) This control allows you to adjust the stereo position of signals routed from MIX buses 1–4 to the ST bus. D TO ST (To stereo) switch (applied only to M1–M4) When you turn this switch on, the MIX bus 1–4 signals will be sent to the ST bus. E AFL (After-Fader Listen) switch When you turn this switch on, the post-fader signals in the MIX buses are routed to the AFL bus, and you can monitor the signals via the C-R MONITOR OUT jacks or PHONES jack. F Mix master fader This fader adjusts the output level of the MIX buses. The settings of the M1–M4 faders affect the level of signals sent to MIX OUT 1–4 jacks, ST bus, AFL bus, and Matrixes 1/2. The settings of the M5–M10 faders affect the level of signals sent to the MIX OUT 5–10 jacks and AFL bus. MC32/12, MC24/12—Owner’s Manual  8 Master Section MIX MIX (FIX) (VARIABLE) PFL 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L R CTL FIX 3-Stage EQ TO ST PAN LOW f MID HIGH MIX INSERT I/O 1 MIX ST OUT 1 L R EQ g VARIABLE/FIX AFL to AFL to MTRX MIX OUT 2-4: Same as MIX OUT 1 MIX OUT 5 EQ LOW g MID HIGH f 3-Stage EQ to AFL AFL MIX OUT 6-10: Same as MIX OUT 5 Signal flow in the Variable/Fix select section and Mix section MC32/12, MC24/12—Owner’s Manual  ST (Stereo) section 9 ST (Stereo) section This section enables you to control the ST bus signals output from the ST1 OUT jacks (see page 17, rear panel 9) and ST2 OUT jacks (see page 17, rear panel J). A POST ST1 (Post stereo 1) switch POST ST1 MONO LEVEL 0 1 This switch toggles between pre- and post-fader for signals output from the ST2 OUT jacks. When you turn this switch on, signals that passed the ST fader are output from the ST2 OUT jacks. When you turn the switch off, the ST fader setting does not affect signals output from the ST2 OUT jacks. 2 B MONO (Monaural) switch 3 When you turn this switch on, the ST bus signals will be mixed into a monaural signal and output from the ST2 OUT jacks. This switch setting does not affect signals output from the ST1 OUT jacks. 10 ST2 C LEVEL control AFL 4 This control enables you to adjust the output level of signals at the ST2 OUT jacks. It does not affect the level of signals output from the ST1 OUT jacks. 10 D AFL (After-fader Listen) switch 5 When you turn this switch on, the ST bus post-fader signals are routed to the AFL bus, and you can monitor the signals via the C-R MONITOR OUT jacks or PHONES jack. 0 5 10 20 30 40 5 E ST (Stereo) fader This fader enables you to adjust the final output level of the ST bus signals. This fader setting affects the level of the signals routed to the ST1 OUT jacks, ST2 OUT jacks (when the POST ST1 switch is turned on), and the AFL bus. 50 60 L ST LR ST1 R REC OUT ST INSERT I/O L L ST1 OUT AFL LR R ST INSERT I/O R AFL POST ST1 L MONO LEVEL ST2 OUT R Signal flow in the ST section MC32/12, MC24/12—Owner’s Manual  10 Master Section AUX RETURN section The MC32/12 and MC24/12 provide four stereo AUX returns. Use the paired AUX RETURN 1–4 L/R jacks (see page 17, rear panel 8) to input stereo signals. Alternatively, connect signals only to the AUX RETURN 1–4’s L jack to use the routing as a monaural AUX return. A M1–M4 mix level controls These controls are used to route signals input from the AUX RETURN 1–2 jacks to MIX buses 1–4. The L channel of a stereo input signal is sent to MIX buses 1 and 3, and the R channel signal is sent to MIX buses 2 and 4. For a monaural signal input, the same signal is sent to MIX buses 1–4. M5 0 10 M6 0 M1 0 M1 10 M2 1 B M5–M10 mix level controls These controls route the input channel signals at the AUX RETURN 3–4 jacks to MIX buses 5–10. The L channel of a stereo input signal is sent to MIX buses 5, 7, and 9, and the R channel signal is sent to MIX buses 6, 8, and 10. M5 0 10 M3 0 3 10 ON 0 0 10 0 10 1 PFL 10 0 10 0 10 0 10 ON 10 0 ON 0 10 0 2 10 0 10 M10 10 ST 0 10 M9 M10 10 0 M8 M9 ST 10 0 10 M7 M8 M4 ST 0 4 10 M3 M4 0 0 10 M7 M2 0 M6 0 10 ST 10 2 PFL 3 PFL AUX RETURN 0 ON 10 5 4 PFL Note: The M1–M4 switch settings in the Variable/Fix select section do not affect the M1– M10 mix level control settings. If the switches are set to FIX, signals that pass the M1–M10 mix level controls will still be sent to MIX buses 1–10. C ST (Stereo) level control This control knob enables you to adjust the level of signals sent from the AUX RETURN 1–4 jacks to the ST bus, and does not affect the M1–M10 mix level control settings ( 1 and 2). D ON switch This switch is used to turn on and off the corresponding AUX return. When you turn this switch off, no signals are sent to the ST bus and MIX buses 1–10. However, using the PFL switch 5 enables you to monitor the signals via the C-R MONITOR OUT jacks or PHONES jack. E PFL switch When you turn this switch on, the AUX return signals will be routed to the PFL bus, and you can monitor the signals via the C-R MONITOR OUT jacks or PHONES jack. The signals are not affected by the M1–M10 mix level controls (1 and 2), ST level control (3), or ON switch (4). MC32/12, MC24/12—Owner’s Manual  11 MATRIX section MIX MIX PFL (FIX) (VARIABLE) 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L CTL 1L(MONO), 2L(MONO) ST LR M1 M2 ON M3 1R, 2R M4 ST AUX RETURN PFL 3L(MONO), 4L(MONO) M5 M6 ON M7 3R, 4R M8 M9 M10 ST PFL Signal flow in the AUX RETURN section MATRIX section The MC32/12 and MC24/12 provide two matrix modules that allow you to mix MIX buses 1–4 and ST bus signals at desired levels. Matrix 1–2 signals are output in monaural via the MATRIX OUT 1–2 jacks (rear panel K). A M1–M4 level controls M1 These control knobs enable you to adjust the input level of MIX bus 1–4 post-fader signals. 1 B L/R controls These control knobs enable you to adjust the input level of the ST bus post-fader signals for the L channel and R channel independently. M1 0 0 M2 M2 0 0 M3 M3 0 0 M4 M4 0 0 L C LEVEL control This control knob enables you to adjust the output level of Matrix 1–2 signals. 2 D ON switch L 0 0 R R 0 0 LEVEL This switch turns on and off Matrixes 1–2. When you turn this switch off, the corresponding matrix signal is not output from the MATRIX OUT jack. The signal is not sent to the AFL bus, either. LEVEL 3 0 4 E AFL (After-fader Listen) switch ON 10 0 1 AFL ON 10 2 AFL MATRIX 5 When you turn this switch on, the matrix 1–2 post-fader signals are sent to the AFL bus. You can monitor the signals via the C-R MONITOR OUT jacks or PHONES jack. However, this switch will be disabled if the ON switch ( 4) is turned off. AFL LR ST LR from 1 MIX OUT 2 M1 3 AFL M2 4 MATRIX OUT 1,2 M3 M4 L ON LEVEL to Meter R Signal flow in the MATRIX section MC32/12, MC24/12—Owner’s Manual  12 Master Section C-R MONI (Control room monitor) section PHONES (headphones) section This section enables you to control signals monitored via the C-R MONITOR OUT jacks (see page 18, rear panel M) and the PHONES jack on the front panel (C-R MONI section/ PHONES section 6). A Monitor source select switch PFL/AFL TAPE IN PFL LEVEL 0 1 2 This switch enables you to select the type of signal to monitor via the C-R MONITOR OUT jacks and the PHONES jack. 3 You will monitor PFL signals (signals routed from input channels/AUX returns to the PFL bus) or AFL signals (signals routed from MIX buses 1–10/ST buses/MATRIX 1–2 to the AFL bus). If any one of the PFL switches for the input channels/AUX returns is turned on, the PFL indicator 2 will light up. In this case, the PFL bus signals (not the AFL bus signals) are routed to the C-R MONITOR OUT jacks and PHONES jack. If all the PFL switches are turned off, the AFL bus signals are sent to the C-R MONITOR OUT jacks and PHONES jack. 10 4 ON C-R MONI LEVEL 0 5 10 ■ When the switch is set to PFL/AFL ( ) Note: If you turn on any one of the PFL switches for the input channels/AUX returns while monitoring the AFL bus signal, the switching circuit will switch the signal to the PFL bus signal. ■ When the switch is set to TAPE IN ( ) You can monitor the signals input from the TAPE IN jacks (see page 18, rear panel N). B PFL (Pre-fader Listen) indicator This indicator lights up when any one of the PFL switches for the input channels/AUX returns is turned on, indicating that the PFL bus signal is currently being monitored. 6 C LEVEL control This control enables you to adjust the level of signals output from the C-R MONITOR OUT jacks. This setting does not affect the signal level at the PHONES jack. PHONES D ON switch This switch turns on and off the monitoring signals output from the C-R MONITOR OUT jacks. It does not affect signals at the PHONES jack. E LEVEL (Headphones level) control This control enables you to adjust the level of signals output from the PHONES jack. This setting does not affect the signal level at the C-R MONITOR OUT jacks. F PHONES (Headphones) jack Connect monitoring stereo headphones here. See the figure on the right for wiring. Tip (left) 1/4" TRS phone plug Ring (right) Sleeve (ground) MC32/12, MC24/12—Owner’s Manual  TAPE IN section 13 TAPE IN section This section enables you to control line-level signals input from the TAPE IN jacks. Input signals from the TAPE IN jacks can be routed to the ST bus or directly to the C-R MONITOR OUT jacks and PHONES jack. A ST (Stereo) control ST 0 1 10 ON TAPE IN 2 This control knob determines the level of input signals at the TAPE IN jacks that are sent to on the ST buses. B ON switch This switch turns on and off the signals sent from the TAPE IN jacks to the ST bus. This switch setting does not affect signals (input from the TAPE IN jacks) that are monitored via the C-R MONITOR OUT jacks and PHONES jack. Note: Set the Monitor source select switch (C-R MONI section 1) in the C-R MONI section to “TAPE IN” to monitor the TAPE IN signals via the C-R MONITOR OUT jacks and PHONES jack. PFL L R CTL ST LR from MTRX 12 PFL•AFL/TAPE MATRIX from AFL PFL PFL/AFL TAPE IN L ON LEVEL R LEVEL TAPE IN C-R MONITOR OUT PHONES L ON ST R Signal flow in the C-R MONI section, PHONES section, and TAPE IN section MC32/12, MC24/12—Owner’s Manual  14 Master Section TALKBACK section This section is used to route talkback signals to the MIX buses and the ST bus. A INPUT jack This XLR-3-31 unbalanced input jack is used to connect a talkback microphone with an output impedance of 50–600Ω. See the figure below for wiring. 1 INPUT Male XLR plug 1 (ground) 3 (cold) 2 3 4 2 (hot) B M1-M4 switch C M5-M10 switch D ST switch M1-M4 LEVEL 5 0 10 M5-M10 ST ON 6 TALKBACK These switches (2–4) are used to send talkback signals to MIX buses 1–4, MIX buses 5–10, and ST bus. You can turn the switches on or off independently for each destination. E LEVEL control This control knob is used to adjust the talkback level. F ON switch This switch turns talkback signals on and off. MIX MIX (FIX) (VARIABLE) PFL 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L R CTL M1-M4 INPUT HA LEVEL ON M5-M10 ST Signal flow in the TALKBACK section MC32/12, MC24/12—Owner’s Manual ST LR  15 METER SELECT section METER SELECT section You can select the signal source to be displayed in the Meter bridge section. A Source select switch This switch enables you to select the signal source to be displayed on the MATRIX (PFL•AFL/TAPE) meter (Meter bridge 3) in the right corner of the level meter. ■ When the switch is set to PFL-AFL/TAPE ( 1 ) PFL•AFL/TAPE MATRIX METER SELECT The meter indicates either the PFL/AFL bus output level or the input level of the signals sent from the TAPE IN jacks, depending on the setting of the Monitor source select switch in the C-R MONI section. ■ When the switch is set to MATRIX ( ) The meter indicates the output level of Matrix 1 and 2. Meter bridge This peak level meter indicates the output level of the MIX buses, ST bus, Matrixes 1/2, PFL bus, and AFL bus, and the level of the signal input from the TAPE IN jacks. 1 2 PEAK +8 +5 +3 +1 0 –1 –3 –5 –7 –10 –15 –20 PEAK +8 +5 +3 +1 0 –1 –3 –5 –7 –10 –15 –20 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 3 4 PEAK +8 +5 +3 +1 0 –1 –3 –5 –7 –10 –15 –20 L R ST1 1 2 MATRIX L R PFL•AFL / TAPE POWER 5 PHANTOM A M1–M10 meters These meters indicate the output level of MIX OUT 1–10. B ST1 meters These meters indicate the output level of ST1 OUT. C MATRIX (PFL•AFL/TAPE) meters These meters indicate the PFL/AFL bus level, input level of signals sent from the TAPE IN jacks, or the output level of Matrixes 1/2, depending on the selection made in the METER SELECT section. D POWER indicator When the power to the MC32/12 (or MC24/12) is turned on, this indicator lights up. E PHANTOM indicator This indicator lights up when any of the phantom power supplies (see page 16, rear panel 4) are turned on. MC32/12, MC24/12—Owner’s Manual  16 Rear Panel Rear Panel C A C-R MONITOR OUT +4dB R 0 9 MATRIX OUT +4dB L 2 8 ST2 OUT +4dB 1 R 4 3 AUX RETURN +4dB 4L (MONO) 3L (MONO) 2L (MONO) 1L (MONO) 4R 3R 2R 1R L PHANTOM (+48V) D E R L ST INSERT I/O 0dB R TAPE IN –10dBV R ST1 OUT +4dB L MIX INSERT I/O 0dB 3 4 8 7 6 5 4 3 2 2 1 16R 14R 1 MIX OUT +4dB B ON 11 INSERT I/O 0dB 10 INSERT I/O 0dB 9 INSERT I/O 0dB INSERT I/O OUT IN 9 12 INSERT I/O 0dB REC OUT –10dBV 10 OFF 15L (MONO) 13L (MONO) L 7 6 INPUT INPUT INPUT INPUT B B B B INPUT INPUT INPUT INPUT A A A A 5 12 A INPUT A jacks 1–12, 17–32 {1–12, 17–24} These are balanced, XLR-3-31 monaural input 1 (ground) Male XLR plug 3 (cold) jacks. Usually their nominal input levels range from –16 dB to –60 dB. However, when the pad switches (see page 2, front panel 1) are turned 2 (hot) on, the nominal input levels range from +10 dB to –34 dB. For every group of four input channels, the INPUT A jacks have phantom power of +48 V that can be turned on and off. See the figure on the right for wiring. B INPUT B jacks 1–12, 17–32 {1–12, 17–24} These are balanced TRS phone, monaural input Tip (hot) jacks. Their nominal input levels are the same as 1/4" TRS phone plug Ring (cold) those for INPUT A 1. You cannot use the INPUT A jack and INPUT B jack for the same channel simultaneously. Do not connect plugs to both A Sleeve (ground) and B jacks of the same channel at the same time. Otherwise, a malfunction may occur. Phantom power is not available for the INPUT B jacks. See the figure on the right for wiring. C INSERT I/O jacks 1–12 These TRS phone jacks are used to insert an external processor into monaural input channels 1–12, 17–32 {17–24} with nominal input/output levels of 0 dB. See the figure below for wiring. Tip (send) 1/4" phone plug Tip (send) Ring (return) 1/4" TRS phone plug Sleeve (ground) Connect to INSERT I/O jack To processor’s input Sleeve (ground) Tip (return) 1/4" phone plug From processor’s output Sleeve (ground) D PHANTOM (+48 V) switches These switches are used to turn the +48 V phantom power on and off for every group of four input channels. If one of these switches is turned on, the PHANTOM indicator on the Meter bridge will light up. MC32/12, MC24/12—Owner’s Manual  Rear Panel 17 E INPUT jacks 13–16 These are unbalanced phone jacks for the stereo input channels, with nominal input levels ranging from –34 dB to +10 dB. If you are using the stereo input modules as monaural channels, connect a plug to 13L (MONO) or 15L (MONO) jack. See the figure on the right for wiring. F MIX OUT 1–10 jacks These balanced XLR-3-32 jacks output MIX bus 1–10 signals individually, with a nominal output level of +4 dB. See the figure on the right for wiring. Tip (send) 1/4" phone plug Sleeve (ground) Male XLR plug 1 (ground) 3 (cold) 2 (hot) G MIX INSERT I/O jacks These TRS phone jacks are used to insert an external processor into MIX buses 1–4, with nominal input/output levels of 0 dB. See the figure below for wiring. Tip (send) 1/4" phone plug Tip (send) Ring (return) 1/4" TRS phone plug Sleeve (ground) Connect to INSERT I/O jack To processor’s input Sleeve (ground) Tip (return) 1/4" phone plug From processor’s output Sleeve (ground) H AUX RETURN 1–4 jacks These unbalanced phone jacks are used to connect stereo outputs from an external effect processor, with nominal input level of +4 dB. To input monaural signals, use only the L (MONO) jack. See the figure on the right for wiring. I ST1 OUT jacks These balanced XLR-3-32 jacks output ST bus signals, with a nominal output level of +4 dB. See the figure on the right for wiring. Tip (send) 1/4" phone plug Sleeve (ground) Male XLR plug 1 (ground) 3 (cold) 2 (hot) J ST2 OUT jacks These unbalanced phone jacks output ST bus signals, with a nominal output level of +4 dB. See the figure on the right for wiring. Tip (send) 1/4" phone plug Sleeve (ground) K MATRIX OUT jacks 1/2 These unbalanced phone jacks output Matrix 1/2 signals that are a mix of MIX buses 1–4 and ST bus, with a nominal output level of +4 dB. See the figure on the right for wiring. Tip (send) 1/4" phone plug Sleeve (ground) MC32/12, MC24/12—Owner’s Manual  18 Rear Panel L ST INSERT I/O jacks These TRS phone jacks are used to insert an external processor into the ST bus, with nominal input/output levels of 0 dB. See the figure below for wiring. Tip (send) 1/4" phone plug Tip (send) Ring (return) 1/4" TRS phone plug Sleeve (ground) Connect to INSERT I/O jack To processor’s input Sleeve (ground) Tip (return) 1/4" phone plug From processor’s output Sleeve (ground) M C-R MONITOR OUT jacks These unbalanced phone jacks are used to monitor input signals sent from the PFL bus, AFL bus, and TAPE IN jacks, with a nominal output level of +4 dB. See the figure on the right for wiring. Tip (send) 1/4" phone plug N TAPE IN jacks Sleeve (ground) Phono plug These unbalanced phono jacks are used to connect a line-level device, with a nominal input level of –10 dBV. See the figure on the right for wiring. O REC OUT jacks These unbalanced phono jacks output line-level, pre-fader, preinsert I/O ST bus signals. See the figure on the right for wiring. MC32/12, MC24/12—Owner’s Manual Tip Sleeve Phono plug Tip Sleeve  19 GA Diversity Function GA Diversity Function What is GA Diversity? GA Diversity is an output select function that allows you to use the MIX OUT jacks as group output jacks or AUX output jacks on the MC32/12 and MC24/12. You can route either MIX (Variable) bus signals or MIX (Fix) bus signals to the MIX OUT 1–4 jacks of the MC32/12 and MC24/12. You can select either one of these output signals in the Variable/Fix select section. If the M1–M4 switches in the Variable/Fix select section are set to FIX ( ), the corresponding MIX OUT jacks will output MIX (FIX) bus signals. Since each channel’s output level for the MIX (FIX) bus signals is fixed, the corresponding MIX OUT jacks will function as group output jacks. If the M1–M4 switches in the Variable/Fix select section are set to VARIABLE ( ), the corresponding MIX OUT jacks will output MIX (VARIABLE) bus signals. Since each channel’s output level for the MIX (VARIABLE) bus signals is variable, the corresponding MIX OUT jacks will function as AUX output jacks. The GA Diversity function will enable you to configure a flexible bus system, such as four groups and six AUX sends, two groups and eight AUX sends, or 10 AUX sends, etc., depending on the application. MIX MIX PFL (FIX) (VARIABLE) 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L R CTL FIX 3-Stage EQ TO ST PAN LOW f MID HIGH MIX INSERT I/O 1 MIX ST OUT 1 L R EQ g VARIABLE/FIX AFL to AFL to MTRX Setting the GA Diversity function 1. Press down the M1 switch ( FIX) in the Variable/ Fix select section (see page 6). The FIX indicator will light up. The MIX OUT 1 output channel will receive the MIX (FIX) 1 bus signal, and the MIX OUT 1 jack will function as a group output jack. 2. Press the M1 switch again to set it to ( VARIABLE). The FIX indicator will be turned off. The MIX OUT 1 output channel will receive the MIX (VARIABLE) 1 bus signal, and the MIX OUT 1 jack will function as an AUX output jack. VARIABLE / FIX M1 FIX M2 FIX M3 FIX M4 FIX 3. Set the M2, M3, and M4 switches in the same way. You can set MIX OUT 1–4 channels to “FIX” or “VARIABLE” individually. MC32/12, MC24/12—Owner’s Manual  20 Specifications Specifications General specifications Frequency response 20 Hz–20 kHz +1 dB, –3 dB, +4 dB 600Ω (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT) (Input Gain Control at minimum) Total harmonic distortion <0.1% @20 Hz–20 kHz, +14 dB 600Ω (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT) –128 dB equivalent input noise –95 dB residual output noise (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT) Hum and noise (Rs=150Ω, 20 Hz–20 kHz) –83 dB residual output noise (ST1 OUT) ST master fader at nominal level. all channel fader, mix level control: minimum ST switch: OFF –78 dB residual output noise (MIX OUT) Mix master fader at nominal level. all channel fader, mix level control: minimum M1–M4 switch: OFF –64 dB (68 dB S/N) (ST1 OUT, MIX OUT) ST master/mix master fader, one channel fader and mix level control at nominal level. one channel gain control: maximum Maximum voltage gain 84 dB CH IN to ST1 OUT 84 dB CH IN to MIX OUT 58 dB ST IN to ST1 OUT 58 dB ST IN to MIX OUT Crosstalk at 1 kHz –70 dB adjacent input –70 dB input to output Gain control 44 dB variable Channel input pad 0 dB/26 dB Channel input HPF 80 Hz 12 dB/oct Input channel equalization ±15 dB Maximum HIGH 10 kHz * HI-MID 400 Hz–8 kHz LO-MID 80 Hz–1.6 kHz LOW 100 Hz * shelving peaking peaking shelving ST input channel equalization ±15 dB Maximum HIGH 10 kHz * HI-MID 3 kHz LO-MID 800 Hz LOW 100 Hz * shelving peaking peaking shelving Mix out equalization ±15 dB Maximum HIGH 10 kHz * shelving MID 300 Hz–6 kHz peaking LOW 100 Hz * shelving Meters 13 points LED x 14 Channel peak indicators An indicator for each channel turns on when the pre-channel fader signal is –3 dB below clipping. Phantom power +48V (balanced) Power requirement USA and Canadian Power consumption 120 W Dimensions (WxHxD) MC32/12: 1372 x 161 x 705 mm MC24/12: 1144 x 161 x 705 mm Weight MC32/12: 38 kg MC24/12: 34 kg * 120 V AC 60 Hz Turn over/Roll off frequency of shelving: 3 dB below maximum variable level. Specifications are subject to change without prior notice. MC32/12, MC24/12—Owner’s Manual  Input specifications 21 Input specifications Input level Input connectors Gain trim CH INPUT 1–12, 17–24/32 MAX CH INPUT 13–16 Input impedance Nominal impedance 3 kΩ 50-600Ω Mics & 600Ω Lines Connector type Sensitivity1 Nominal level Max. before clipping –86 dB (38.8 µV) –60 dB (775 µV) –40 dB (7.75 mV) –42 dB (6.16 mV) –16 dB (123 mV) +4 dB (1.23 V) MAX –60 dB (775 µV) –34 dB (15.5 mV) –14 dB (155 mV) MIN –16 dB (123 mV) +10 dB (2.45 V) +30 dB (24.5 V) –12 dB (195 mV) +4 dB (1.23 V) +20 dB (7.75 V) MIN AUX RETURN TAPE IN –26 dBV (50.1mV) –10 dBV (316 mV) 600Ω Lines A: XLR-3-31 type2 B: Phone jack2 Phone jack (TRS)3 +8 dBV (2.51 V) RCA phono 0 dB (775 mV) +20 dB (7.75 V) Phone jack, TRS4 –50 dB (2.45 mV) –24 dB (48.9 mV) 10 kΩ CH INSERT I/O –26 dB (38.8 mV) ST INSERT I/O –10 dB (245 mV) MIX INSERT I/O TALKBACK INPUT 1. 2. 3. 4. • 50-600Ω Mics –66 dB (338 µV) XLR-3-31 type3 Sensitivity is the lowest level that will produce an output of +4 dB (1.23 V) or the nominal output level when the unit is set to maximum gain. Balanced Unbalanced T: OUT, R: IN, S: GND 0 dB=0.775 Vrms, 0 dBV=1 Vrms Output specifications Output connector ST1 OUT Output impedance Nominal impedance Output level Connector type Nominal +24 dB (12.3 V) XLR-3-32 type1 +20 dB (7.75 V) Phone jack2 +24 dB (12.3 V) XLR-3-32 type1 +20 dB (7.75 V) Phone jack2 –10 dBV (316 mV) +10 dBV (3.16 V) RCA phono 0 dB (775 mV) +20 dB (7.75 V) 30 mW 100 mW 150Ω ST2 OUT 600Ω Lines MIX OUT Max. before clipping +4 dB (1.23 V) 75Ω MATRIX OUT C-R MONITOR OUT REC OUT CH INSERT I/O 600Ω 10 kΩ Lines ST INSERT I/O Phone jack, TRS3 MIX INSERT I/O PHONES 1. 2. 3. • 100Ω 40Ω Phones ST phone jack Balanced Unbalanced T: OUT, R: IN, S: GND 0 dB=0.775 Vrms, 0 dBV=1 Vrms MC32/12, MC24/12—Owner’s Manual  22 Specifications Dimensions MC32/12 500 500 186 186 W: 1372 MC24/12 172 800 172 W: 1144 Unit: mm For European Model Purchaser/User Information specified in EN55103-1 and EN55103-2. Inrush Current: 5A Conformed Environment: E1, E2, E3 and E4 MC32/12, MC24/12—Owner’s Manual D: 705 400 107 H: 161  80 HPF HPF INSERT I/O HPF 1R, 2R 1L(MONO), 2L(MONO) 4-Stage EQ LEVEL ON PFL ON PFL ON PFL ON PFL ON M4 ON M10 M9 M8 BAL ST M5-M10 M1-M4 ST M10 M9 M8 M7 M6 M5 ST M4 M3 M2 M1 ST M10 PRE M9 M8 PRE M7 M6 PRE M5 M4 M3 ON ON M2 M1 ON ON ST PAN PRE PRE M7 M6 M5 M3 ON PRE M2 ON MIX(FIX) 1-4 MIX INSERT I/O MIX INSERT I/O 1 VARIABLE/FIX FIX 3-Stage EQ 3-Stage EQ TAPE IN R L MIX ST OUT 1 L R to AFL MIX OUT 5 to AFL MIX OUT ON ST AFL TAPE IN MIX OUT 6-10: Same as MIX OUT 5 EQ AFL TO ST PAN to MTRX MIX OUT 2-4: Same as MIX OUT 1 EQ 4 3 from 1 MIX OUT 2 ST INSERT I/O ST INSERT I/O R ST INSERT I/O L ST1 OUT from AFL R L M4 M3 M2 M1 POST ST1 AFL PFL PFL/AFL TAPE IN ON LEVEL MONO LEVEL 9 10 LEVEL ST2 OUT LEVEL ON PFL•AFL/TAPE MATRIX from MTRX 12 to Meter AFL from MIX OUT 5 6 1 2 3 4 ST2 OUT ST1 OUT REC OUT from MIX OUT R L R L R L AFL LR PHONES C-R MONITOR OUT MONITOR OUT R L MATRIX OUT 1,2 to C-R MONITOR –60 –50 –40 –30 –20 –10 0 Ch13-16, GAIN Max Ch1-12, 17-24/32 PAD Off, GAIN Max Ch1-12, 17-24/32 PAD On, GAIN Max Ch1-12, 17-24/32 PAD Off, GAIN Min Talkback INPUT MIX(VARIABLE) 1-10 REC OUT PHONES (@40Ω) –60 –50 –40 –30 –20 –10 0 +10 HA AUX RETURN INPUT 3R, 4R 3L(MONO), 4L(MONO) EQ M1 ON MIX MIX PFL (FIX) (VARIABLE) 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L R CTL +20 Ch INSERT 4-Stage EQ AUX RETURN ø 4-Stage EQ f +10 Ch13-16, GAIN Min HA HA PAD PAD GAIN 26dB Ch1-12, 17-24/32 PAD On, GAIN Min 14R, 16R HA PAD EQ +20 14/13, 16/15 13L(MONO), 15L(MONO) INPUT A 1-12, 17-24/17-32 INPUT B GAIN f PEAK PEAK +48V 80 HIGH HIGH HIGH HIGH HI-MID g HI-MID f f LOW LOW g MID g MID LO-MID g LO-MID LOW LOW PHANTOM Block and Level diagram 23 Block and Level diagram MC32/12, MC24/12—Owner’s Manual  YAMAHA CORPORATION V670450 R1 1 IP 28 NP Printed in Taiwan Pro Audio & Digital Musical Instrument Division P.O. Box 3, Hamamatsu, 430-8651, Japan