For larger venues and audiences, or if you plan to use it for outdoor sound, the EMX512SC, with a pair of whopping 500-watt amplifiers ensures that your music or message comes across with full impact.
With the power for mid-to-large venues 300 watts + 300 watts and the added advantage of one-knob compression on mono channels, the EMX312SC may be the model you need.
The lowest-powered model in the series, the EMX212S, offers a pair of 200-watt amplifiers per channel that should be more than sufficient for small-to-medium size venues.
Integrated Solutions for Superior Live Sound
Experienced musicians, performers, speakers, and club operators know the
importance of a high-quality sound system with the right features and
performance to deliver their sound. Where portability and convenience are
important criteria, a system based on a high-performance Yamaha EMXseries
powered mixer is definitely the way to go. In one integrated, portable unit you
have a mixer to combine and balance your microphone, instrument, and line
sources, effects to refine and polish your sound, and power to drive the main
speakers and even monitor speakers as well. But that's nowhere near the whole
story - Yamaha EMX-series Powered Mixers offer a range of features that let you
mix, process, and deliver your sound with maximum quality and creative control
... and, of course, that unrivalled Yamaha sound.
Features for Superior Sound and Convenience
Great Yamaha Sound
Yamaha is a leader in the field of professional live sound for a very good
reason: we deliver the sound and performance that the pros demand. The EMX-series
powered mixers are no exception. They're built at the same standards of sonic
performance and rugged reliability that makes Yamaha the first choice for live
sound applications from schools to stadiums around the globe.
One-knob Compression on Mono Channels(EMX312SC & EMX512SC)
All four monaural mic/line channels on the EMX312SC and EMX512SC feature
built-in compressors that can help to bring vocals to the front of the mix, give
your guitars extra smoothness and presence, deliver more authoritative bass
sound, and generally refine your mixes in a multitude of ways. These one-knob
compressors are simple to use, too. There's no need to juggle multiple attack,
threshold, makeup gain, and other controls - just set the COMP control for the
amount of compression you need.
SPX Digital Effects
The EMX212S, EMX312SC, and EMX512SC all feature a selection of 16 top-quality
Yamaha SPX effects - including reverb, echo, chorus, flanger, phaser, and even
distortion - that can add the final touch to your live presentation. Yamaha SPX
digital effects are widely recognized as being some of the finest available, and
the effects provided in the EMX mixers live up to that reputation.
Built-in Graphic EQ
Graphic equalizers are provided for both the main and monitor channels, so you
can effectively control feedback or tailor the sound to match the room and
program material.
Stand-by Mode
When you're done with a set simply engage the stand-by mode to mute all mono
channels while leaving the 2-track inputs active for background music playback
while you're taking your break.
Feedback Channel Locating (FCL) System
FCL System indicator LEDs at the top of each channel light if the corresponding
channel goes into feedback, so you won't have to fumble around searching for the
channel that needs adjustment.
12 Inputs
All three mixers in this series offer a total of 12 input channels - four for
monaural microphone (incl. Phantom Power) or line input, plus four pairs that
can function either as monaural microphone inputs or stereo line inputs -
providing you with a versatile mix of input capabilities for a wide range of
applications. If you need only microphone inputs you can use up to eight mic
channels. Or if, for example, you want to play recorded background music during
breaks (that's one stereo channel), and you have a keyboard player with a
stereo-output keyboard (that's one more stereo channel), you still have six mic/line
inputs. If you use all four stereo pairs to handle stereo line sources you have
four channels available for mono mic or line input. This is a very versatile
system that can adapt to your needs.
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Durable, Lightweight Design
The EMX powered mixers offer the ideal combination of outstanding sound
performance and easy handling. They're lightweight only 10 kilograms (22lbs.)
and feature conveniently located handles for maximum carrying comfort. They're
also built tough to withstand the rigors of use on the road.

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GENERAL SPECIFICATIONS
| EMX212S | EMX312SC | EMX512SC | |
| Maximum Output Power @ 0.5 % THD at 1 kHz |
220 W/4 Ω 130 W/8 Ω | 300 W/4 Ω 190 W/8 Ω | 500 W/4 Ω 350 W/8 Ω |
| Frequency Response | -3, 0, 1 dB 20 Hz-20 kHz, ref to the nominal output level @ 1 kHz |
||
| Total Harmonic Distortion | Less than 0.5 % (THD+N) +14 dB @ 20 Hz, 1 kHz, 20 kHz, GAIN control: all nominal |
||
| Hum & Noise*1 | Equivalent Input Noise, -115 dBu, Rs = 150 Ω CH 1-4 MIC/LINE: MIC | ||
| Crosstalk @ 1 kHz | -65 dB | ||
| Input Connectors | CH 1-4: XLR and Phone CH 5/6, 7/8: XLR and Phone CH 9/10, 11/12: XLR and Pin |
||
| EQ | HIGH, MID, LOW | ||
| Phantom Power | 15 V | ||
| Graphic Equalizer | 7 Band (125, 250, 500, 1 k, 2 k, 4 k, 8 kHz): Main (Stereo) and Monitor | ||
| Digital Effects | SPX Digital Multi Effector (24 bit AD/DA, 32 bit Internal Processing): 16 Programs | ||
| Power Amp. Mode | Main L/R, Main (L+R)/Monitor | ||
| Foot Switch | Effect On/Off | ||
| Dimensions (W x D x H) | 442 x 274 x 286 mm (17-3/8" x 10-3/4" x 11-1/4") | ||
| Weight | 10 kg (22 lbs.) | ||
| Power Requirements/Consumption | U/C: 120 V 60 Hz, 270 W | U/C: 120 V 60 Hz, 400 W | U/C: 120 V 60 Hz, 450 W |
*1 Hum & Noise are measured with a 6 dB/octave filter @
12.7 kHz; equivalent to a 20 kHz filter with infinite dB/octave attenuation.
INPUT CHARACTERISTICS
| Input Terminals | MIC/LINE | Actual Load Impedance | For Use With Nominal | Input level | |||
| Sensitivity *2 | Position | Max. before clip | |||||
| CH INPUT 1-4 | XLR *3 |
MIC | 2 kΩ | 50-600 Ω Mics | -60 dBu (0.69 mV) |
-35 dBu (13.8 mV) |
-15 dBu (138 mV) |
| LINE | -30 dBu (21.8 mV) |
-5 dBu (436 mV) |
+15 dBu (4.36 V) |
||||
| Phone *4 |
MIC | 6 KΩ | 600 Ω | -50 dBu (2.18 mV) |
-25 dBu (43.6 mV) |
-5 dBu (436 mV) |
|
| LINE | -20 dBu (69.0 mV) |
+5 dBu (1.38 V) |
+25 dBu (13.8 V) |
||||
| CH INPUT 5/6, 7/8 | XLR *3 |
- | 2 kΩ | 50-600 Ω Mics | -60 dBu (0.69 mV) |
-35 dBu (13.8 mV) |
-15 dBu (138 mV) |
| Phone *5 |
- | 10 KΩ | 600 Ω Lines | -20 dBu (69.0 mV) |
+5 dBu (1.38 V) |
+25 dBu (13.8 V) |
|
| CH INPUT 9/10, 11/12 | XLR *3 |
- | 2 kΩ | 50-600 Ω Mics | -60 dBu (0.69 mV) |
-35 dBu (13.8 mV) |
-15 dBu (138 mV) |
| RCA Pin |
- | 10 KΩ | 600 Ω Lines | -20 dBu (69.0 mV) |
+5 dBu (1.38 V) |
+25 dBu (13.8 V) |
|
*1 0 dBu is referenced to 0.775 Vrms.
*2 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 level. (All
level controls are at maximum position.)
*3 XLR-3-31 type connectors are balanced. (1=GND, 2=HOT, 3=COLD)
*4 Phone Jacks are balanced. (Tip=HOT, Ring=COLD, Sleeve=GND)
*5 Phone Jacks are unbalanced.
OUTPUT CHARACTERISTICS
| Output Terminals | Actual Source Impedance | For Use With Nominal | Output level | Connector | ||
| Nominal | Max. before clip | |||||
| SPEAKER OUT [A1, A2, B1, B2] |
0.1 Ω | 4 Ω Speakers | EMX512SC | 125 W | 500 W | [A1, B1] SPEAKON |
| EMX312SC | 75 W | 300 W | [A2, B2] Phone Jack *2 | |||
| EMX212S | 50 W | 200 W | ||||
| MAIN OUT [L, R] | 600 Ω | 10 kΩ Lines | - | +4 dBu (1.23 V) | +20 dBu (7.75 V) | Phone Jack *2 |
| EFFECT OUT | 600 Ω | 10 kΩ Lines | - | +4 dBu (1.23 V) | +20 dBu (7.75 V) | Phone Jack *2 |
| MONITOR OUT | 600 Ω | 10 kΩ Lines | - | +4 dBu (1.23 V) | +20 dBu (7.75 V) | Phone Jack *2 |
| REC OUT [L, R] | 600 Ω | 10 kΩ Lines | - | -10 dBV (316 mV) | +10 dBV (3.16 V) | RCA Pin Jack |
*1 0 dBu is referenced to 0.775 Vrms. 0 dBV is referenced to
1 Vrms.
*2 Phone Jacks are unbalanced.