Yamaha EMX66M 6-Channel 600W Powered Mixer PA Head


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Used, in good working condition. 600 watts, 6 channels with 3-band EQ, and some great-sounding effects make this one a winner for the price point. Shows some normal cosmetic signs of use plus a sticker on one side (see photos).

From Zzounds:

Two 300-Watt (4-ohm) amplifiers. 3-band EQ.

For years, Yamaha's EMX Series powered mixers have offered portability, simplicity, economy, and reliability for small-to-medium sound reinforcement applications. In response to market demand for even lighter, roadworthy designs, Yamaha Professional Audio brings you updated 6- and 8-channel models.

Like their predecessors, the new editions feature built-in amplification and onboard digital effects, including Yamaha's acclaimed reverb technology. Internal amplifiers now deliver 200-400 Watts of efficient power and contain proprietary YSP circuitry that tailors the response curve to match Yamaha Club Series speakers. All models are now housed in rugged high-impact molded enclosures, andÖdue to the decreased space considerations of many permanent and portable applicationsÖare rack mountable.

"The Yamaha EMX Series has a proven history of excellence," states Wayne Hrabak, marketing manager, Professional Audio. "With these recent upgrades, the line should be even more attractive for solo performers, bands, houses of worship, and corporate applications."


• Two 300-Watt (4-ohm) amplifiers
• Built-in limiter to prevent damage from feedback or overload
• We Channels 1-4 have balanced XLR connectors with switchable pads and phantom power, plus balanced 1/4-in. jacks
• Inputs 5 and 6 each include 2 unbalanced inputs
• All channels contain 3-band EQ, plus independent monitor and effects sends
• RCA connectors with separate level control for a tape recorder or a CD player are also conveniently located on the front panel
• 2 professional quality 7-band graphic equalizer and 8 digital effects

"Yamaha's upgraded EMX powered mixers will continue to offer both dealers and end users the winning combination of professional features and economy," states John Schauer, product manager, Professional Audio.

Why a Powered Mixer
For the busy performing musician or club operator, a high-quality powered mixer with the right features and professional performance is the obvious choice for several reasons...

All-In-One Integration
In one convenient unit you have a mixer to combine and balance your microphone and instrument sources, effects to add ambience to your sound, and power amplification to drive house speakers and in some models even monitor speakers as well. Why bother with the fuss and frustration of separate components when you can have it all in one.

Simple Setup and Operation
Setting up a system with separate mixer, effect units, and power amplifier means lots of cables and the need for careful level matching between components if you want optimum performance. All of this takes time and adds up to extra work - not to mention the potential for misplaced or faulty cables and a plethora of other "technical problems." When you're rushing to set up for a gig, you want things to go as quickly and as smoothly as possible.

Unmatched Portability
Pick it up, carry it to where you're going to use it, and put it down. Compare that to transporting, connecting, and adjusting at least 3 separate units. There's simply no contest: a well-designed, smoothly integrated powered mixer is smaller, lighter, and actually more durable than a comparable component system.

Why a Yamaha Powered Mixer
Now that we've determined that you need a powered mixer, why should you choose a Yamaha Start with a solid reputation for professional quality based on more than 25 years experience in the field. And don't forget that Yamaha also makes some of the world's finest acoustic pianos, stringed instruments, wind instruments, drums, and electronic instruments as well as industry-standard sound reinforcement gear. In short, the Yamaha name is synonymous with leading-edge technology that also embodies a unique sensitivity to the artistic needs of the musicians and performers who use it. But since we're talking about powered mixers, here are a few more specific reasons...

Superior Sonic Quality
In addition to no-compromise circuit design and parts selection, here's an area in which Yamaha's musical sensitivity really makes a difference. The technology is important, but the real key to Yamaha sonic quality is in listening. Our engineers, sound specialists and instrument designers listen carefully to each product at every possible design stage, making changes and refinements that may not appear in the specifications, but that make an audible difference to the final sound.

A Power Profile for Every Application
The Yamaha EMX-series Powered Mixers deliver plenty of professional-quality power in a range of configurations designed to suit just about any application. From the 200-watt mono model right up to the 500-watt-per-channel multi-mode stereo model there's an EMX Powered mixer that offers the perfect balance of power and features for your solo act, band, or venue.

Serious Reliability and Safety
We're not exaggerating when we say that Yamaha quality control is among the strictest in the business. In addition to ISO-standard manufacturing processes, we carry out an almost unbelievable battery of reliability and safety tests to ensure that every product surpasses all of the world's most stringent safety standards: UL, CSA, SEMKO, CE...you name it, we've passed it. To give you an idea of how far we go to ensure quality, here's a short list of some of the conditions every Yamaha product must meet.

Power Supply Stability
In addition to flawless overall operation in the face of power line fluctuations as severe as +/-15%, the power supply must produce no hum or noise.

Environmental Temperature & Humidity Extremes
All electronic and mechanical functions must operate properly in ambient temperatures from -20oC up to +37.5oC (+/-2oC), and in humidity as high as 90% (+/-5%).

Static Electricity
Static electricity discharges as high as 10,000 volts must not cause functional errors, and discharges up to 20,000 volts must no result in breakdown.

All products are tested for normal operation for a total of 200 continuous hours (when power-transistors are involved, the heat sink temperatures is maintained at +50All products are tested for normal operation for a total of 200 continuous hours (when power-transistors are involved, the heat sink temperature is maintained at +50oC).

The Mixer
The EMX Powered mixers may be designed for convenient, easy operation, but that doesn't mean that basic quality and performance are compromised in any way. In fact, they inherit technology from the acclaimed Yamaha PM3500 and PM4000 sound reinforcement mixing consoles - staples in the professional reinforcement field worldwide. Yamaha expertise and technological innovation is even at work in the details that deliver subtle but vital improvements in the overall sound: superior RF (Radio Frequency) rejection and exceptionally clean, transparent head amplifiers are just two examples.

The Power Amplifier
High power alone is simply not enough. At any power level the amplifier's output must remain an accurate, uncolored image of the original input signal. That demands much more technological finesse than simply building a bigger amp. In addition to totally clean, natural power, the EMX power amplifiers feature Yamaha's unique EEEngine technology for extremely efficient operation with significantly reduced AC power consumption and heat generation - factors that contribute to the lineup's light weight and compact dimensions as well.

Digital Effects
Yamaha is no newcomer to the field of digital signal processing. Our professional outboard effect units and the effects built into our renowned digital mixing consoles set the standards for the industry. The EMX Series powered mixers benefit from the same cutting-edge technology. The EMX68S, EMX88S, and EMX5000 models, in particular, feature SPX digital effect technology with 24-bit AD/DA conversion and 32-bit internal processing. The EMX effects are more than mere "extras." They are professional-quality effects that can contribute to your sound in many important ways.

Rack Mounting and Efficient Forced-air Cooling
With the exception of the largest model in the lineup - the 20-channel EMX5000-20 - all models can be rack-mounted using an optional rack-mounting kit* for optimum integration with any system or installation. In addition to the mixers' physical configuration, this is made possible by a highly efficient fan cooling system that ensures reliable, stable operation under just about any environmental conditions.

*RK-88 7U Rack Mount kit for the EMX62M, EMX66M, EMX68S, and EMX88S.

Yamaha Speaker Processing
Yamaha Club Series speakers are fine performers in their own right, but with Yamaha Speaker Processing you get extra-smooth highs and enhanced low frequency output.


Maximum Output Power @0.5% THD at 1kHz:
600W/8ohms bridge

Input Connectors:
CH1-4: XLR and TRS Phone
CH5, 6:XLR and 2 * TRS Phone

EQ (Mono CH):
HIGH 10kHZ Shelving
LOW 100kHZ Shelving

Aux Sends: 2 (1MONITOR, 1EFFECT)

Phantom Power: +15v

Graphic Equalizer: 7-band (125, 250, 500, 1k, 2k, 4k, 8k Hz)

Digital Effects:
8 programs
Vocal echo 1
Vocal echo 2
Vocal reverb 1
Vocal reverb 2
Hall 1
Hall 2

Power Amp. Mode:
Main + Main
Main + Monitor
Main Bridge

Meters: 5 points (Main), 5 points (Monitor)

Yamaha Speaker Processing: Yes

Foot Switch: Effect On/Off

Dimensions (W x H x D): 18-15/16 x 12 x 12 7/8 in.

Weight: 33.1 lbs.

Power Requirements/Consumption: 120V AC 60Hz 110W

* If you are placing an international order, please contact us prior to checkout to discuss shipping quotes.

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