YAMAHA MC32-12 Details
Group/Aux Diversity Means Unprecedented Mixing Versatility
The Yamaha MC32/12 and MC24/12 are high-performace mixing consoles designed primarily for sound reinforcement applications and installations. 32-input and 24-input models are available, both with a unique 12-buss architecture, 10 mix buses, plus stereo, featuring Yamaha's Group/Aux Diversity system for unprecedented flexibility. The MC consoles also feature a center-master design with a logical, easy-to-use control layout, and are remarkably affordable in spite of their outstanding overall quality and extraordinary versatility.
Group/Aux Diversity System
Most mixing consoles have a fixed buss system: e.g. say 4 group busses, 3 or 4 auxiliary busses, a stereo buss, and maybe a mono buss. The numbers and variations are endless, but you're stuck with the configuration you initially purchased. If your buss requirements change, you need a new console. And if your buss requirements change from project to project, you'll need a console with much more capacity than any single job requires. The GA Diversity system provided on the MC Series Mixing Consoles gives you the flexibility to match the console's buss configuration to a wide range of signal-routing requirements. 4 of its 10 mix busses can be individually switched from pre-fader auxiliary send status to group type operation, so you can have 2 groups and 8 auxiliary sends, 4 groups and 6 auxiliary sends, or any other combination the job requires.
Clean Signals from Input to Output
Many mixer circuits must handle low-level signals - the head amplifiers, for example - and must be designed with extra care or they can be a major source of noise and distortion. Other critical design criteria includes inter-stage matching, internal impedance, circuit layout, grounding, component selection, and a veritable plethora of other factors that affect performance and the mixer's overall "sound". Here's where Yamaha technology makes a real difference. Whether you're using microphone or line inputs, Yamaha's high-performance circuitry gives you an exceptionally clean, quiet signal from input to output. But then there's RF rejection. RF (Radio Frequency) noise generated by motors, video monitors, and digital equipment of almost any kind can make the cleanest, quietest circuitry virtually worthless. The MC32/12 and MC24/12 boast outstanding RF noise rejection, so you can use them just about anywhere.
Specs You Can Trust
Yamaha never has "tweaked" specifications. Never will. It's amazing how mediocre specs can be made to look impressive by simply optimizing test conditions. The electrical specifications we publish are all brutally honest, measured under the stated and/or industry-standard conditions. When in doubt, we urge you to use the most sensitive sound measurement devices available: your own ears. They'll tell you who you can trust.
Rugged & Reliable
From connectors to controls to chassis, MC consoles are built to last. Whether used in an installation or taken on the road, these attractively finished, rugged consoles will keep on performing with the utmost reliability.
Inputs
The MC32/12 has 28 mono input channels, and the MC24/12 has 20 mono input channels, with balanced XLR-type microphone inputs and balanced/unbalanced TRS phone jack line inputs. Phantom power is switchable in 4- input groups for all mono inputs, providing direct compatibility with high-performance phantom-powered condenser microphones and DI boxes. On both the MC32/12 and MC24/12, stereo line sources can be directly connected to either of 2 stereo input channels (a total of four inputs) with unbalanced L/MONO and R phone jack inputs. The L/MONO inputs allow the stereo channels to be used for mono signals.
Channel Insertion
Insert send/return patch points are included on all mono channels for convenient insertion of compressor/limiters (a must for top-quality vocal sound), equalizers, or any other outboard equipment you might need to apply to individual channels.
Input Controls & Level Matching
Gain trim controls with a 44-dB range and LED peak indicators on all mono and stereo inputs facilitate optimum level matching with a wide range of sources. The mono inputs additionally feature 26-dB pad switches, phase switches for easy input phase correction, and switchable high-pass filters to cut out rumble and other low-frequency noise.
4-band Channel EQ
4-band equalization on each input channel can be used to bring out the best in the sound of individual instruments or voices, emphasize a channel in relation to others, blend the sound of several channels, create special effects, reduce noise, and much more. The hi-mid and lo-mid bands on the mono channels are sweepable for extra control precision. EQ bypass switches are provided on all channels so equalization can be punched in or out as required without having to change settings.
Four Group/Aux Sends
The M1 through M4 "Mix Send" controls feed the MC console's unique GA Diversity system. When the corresponding FIX/VAR switch in the master section is set to the "VAR" position, that send functions as a pre-fader auxiliary send: i.e. the send control adjusts the level of the signal sent to the corresponding buss (M1-M4), and the send ON switch simply turns the corresponding send on or off. If a FIX/VAR switch is set to the "FIX" position, the send then functions as a post-fader group send: The send control is bypassed, and the send ON switch functions as a group assign switch.
Six Aux Sends
The M5 through M10 controls function as auxiliary sends, feeding the corresponding mix buss. These controls can be switched to receive the pre- or post-fader signal in groups of two (5/6, 7/8, and 9/10).
Stereo Assign & Panning
Stereo assign switches and pan controls on each input channel assign the corresponding channel signal to the MC console's stereo buss.
Channel Faders, Pre-fader Listen, & Channel ON Switches
Smooth, noise-free 100-mm linear faders make it easy to set up the optimum balance between channels, while PFL (Pre-Fader Listen) switches allow convenient solo monitoring of a channel's pre-fader signal. All channels additionally feature channel on switches that can be used to switch the channel signal into or out of the mix without changing any other settings.
GA Diversity FIX/VARI Switches
The core of the MC console's innovative GA Diversity system, these switches determine whether the corresponding sends on the input channels - M1 through M4 - function as auxiliary or group sends (see "Four Group/Aux Sends," for more details).
Mix Buss Master Strips M1 through M4
The first four mix buss master strips - M1 through M4 -receive either the pre-fader aux signal or the post-fader group signal from the channel sends, depending on the setting of the corresponding GA Diversity FIX/VARI switch. Each strip has its own 3-band equalizer and EQ switch, as well as a "to stereo" switch, and a pan control, which assigns the mix buss signal to the console's stereo buss. The mix buss master strips also feature 100-mm faders and AFL (After-Fader Listen) switches for convenient solo monitoring.
Mix Buss Master Strips M5 through M10
Mix buss strips M5 through M10 receive the auxiliary signal from the corresponding channel send controls. Like the M1 through M4 strips, strips M5 through M10 have individual 3-band equalizers and EQ switches as well as 100-mm faders and AFL (After-Fader Listen) switches.
Stereo Master Strip
The stereo buss feeds two stereo output pairs: stereo 1 and stereo 2. The main linear stereo fader feeds the balanced stereo 1 outputs, with AFL listen capability. The stereo 2 signal can be derived pre or post the stereo 1 fader, and feeds an unbalanced output pair via the rotary stereo 2 level control. A mono switch is also provided to sum the stereo 2 signal to mono for instant mono monitoring or to feed a mono sound system.
Stereo Aux Returns & Buss Sends
The stereo auxiliary return 1/2 pair has controls to adjust the level of the returned signal sent to the M1 through M4 mixes and the stereo buss as well as return on/off switch and PFL switches. The signal returned to the stereo auxiliary return 3/4 pair can be sent to any of the remaining mix busses (M5 through M10), or to the stereo buss. The 3/4 returns also have on/off and PFL switches.
Two Matrix Mixes
Matrix controls can be used to set up two matrix sub-mixes from the M1 through M4 mix busses and the stereo buss. Both matrix mixes include mix on/off switches and AFL switches.
Flexible Monitoring & Metering
Convenient monitoring is provided by control-room monitor and headphone output with independent level controls, and peak-reading level meters providing accurate visual monitoring of the signal appearing at the ten mix busses, the stereo buss, and the PFL and AFL busses.
Handy Rec Outputs & Tape Inputs
Rec outputs provide a line-level stereo output for convenient recording of the main program, while tape inputs with a level control allow the output from a recorder or other line-level source to be added to the console's stereo signal.
YAMAHA MC32-12 Specs
General Specifications
Frequency response 20 Hz-20 kHz +1 dB, -2 dB, +4 dB 600Ω
(ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT)
Total harmonic distortion 0.1% @20 Hz-20 kHz, +14 dB 600Ω
(ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT)
Hum and noise
(Rs=150Ω, 20 Hz-20kHz) -128 dB equivalent input noise
-95 dB residual output noise (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT)
-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,
HI-MID
LO-MID
LOW
10 kHz*
400 Hz-8 kHz
80 Hz-1.6 kHz
100 Hz*
shelving
peaking
peaking
shelving
ST input channel equalization +/-15 dB Maximum
HIGH
HI-MID
LO-MID
LOW
10 kHz*
3 kHz
800 Hz
100 Hz*
shelving
peaking
peaking
shelving
Mix out equalization +/-15 dB Maximum
HIGH
MID
LOW
10 kHz*
300 Hz-6 kHz
100 Hz*
shelving
peaking
shelving
*Turn over/Roll off frequency of shelving: 3 dB below maximum variable level.
Specifications are subject to change without prior notice.
Meters 13 segment 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 requirements USA and Canadian 120 V AC 60 Hz
Power consumption 120W
Dimensions (W x H x D) MC32/12: 1372 x 161 x 705 mm (54" x 6-5/16" x 27-3/4")
M24/12: 1144 x 161 x 705mm (45-1/16" x 6-5/16" x 27-3/4")
Weight MC32/12: 38kg (83.8lbs.) M24/12: 34kg (75lbs.)
Input Specifications
Input
Connectors Gain
trim Input
Impedance Nominal
Impedance Input level Connector
type
Sensitivity1 Nominal
Level Max. before
clipping
CH INPUT
1-12, 7-24/32 MAX 3 kΩ 50-600Ω -86dB
(38.8microV) -60dB
(775microV) -40dB(7.75mV) A:XLR-3-31 type2
B: Phone jack
MIN -42dB(6.16mV) -16dB(123mV) +4dB(1.23V)
CH INPUT
13-16 MAX 10 kΩ 600Ω
Line -60dB
(775microV) -34dB(15.5mV) -14dB(155mV) Phone jack
(TRS)3
-16dB(123mV)
+10dB(2.45V) +30dB(24.5V)
MIN
AUX RETURN -12dB(195mV) +4dB(1.23V) +20dB(7.75V)
TAPE IN -26dBV(50.1,V) -10dBV(316mV) +8dBV(2.51V) Phono
CH INSERT I/O -26dB(38.8mV) 0dB(775mV) +20dB(7.75V) Phone jack,
TRS4
ST INSERT I/O -10dB(245mV)
MIX INSERT I/O
TALKBACK INPUT 50-600Ω Mics -66dB
(338microV) -50dB(2.45mV) -24dB(48.9mV) XLR-3-31
type3
1. Sensitivity is the lowest level that will produce an output of +4dB (1.23) or the nominal output level when the unit is set to
maximum gain. 2. Balanced 3. Unbalanced 4. T: OUT, R: IN, S: GND *0 dB=0.775 Vrms, 0dBV=1 Vrms
Output Specifications
Output
connectors Output
impedance Nominal
Impedance Output level Connector type
Nominal Max. before
clipping
ST1 OUT 150Ω 600ΩLines +4dB(1.23V) +24dB(12.3V) XLR-3-32 type1
ST2 OUT 75Ω +20dB(7.75V) Phone jack2
MIX OUT +24dB(12.3V) XLR-3-32 type1
MATRIX OUT +20dB(7.75V) Phone jack2
C-R MONITOR OUT
REC OUT 600Ω 10 kΩLines -10dBV(316mV) +10dBV(3.16V) Phono
CH INSERT I/O 0dB(775mV) +20dB(7.75V) Phono jack, TRS3
ST INSERT I/O
MIX INERT I/O
PHONES 100Ω 40ΩPhones 3mW 100mW ST phone jack
1. Balanced 2. Unbalanced 3. T:OUT, R: IN, S: GND *0 dB=0.775 Vrms, 0 dBV=1 Vrms
YAMAHA MC32/12 MIXING CONSOLE
