Yamaha EMX640 Owner's Manual

Yamaha EMX640 Owner's Manual

Yamaha powered mixer emx640
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POWERED MIXER
Introduction
Thank you for purchasing the Yamaha EMX640 Powered Mixer. The EMX640 has the following features.
In order to take full advantage of the EMX640 and enjoy long and trouble-free performance, please read this
owner's manual carefully, and keep it in a safe place for future reference.
Features
• Six input channels compatible with mic/line signals are
provided. The EMX640 has ample power, with a maximum
output of 200 W+200 W (400 W with bridge connection),
and is suitable for a wide range of applications from installed
systems to small-scale PA systems.
• A two-channel power amp is built-in. The input signals for
the two channels can be selected as MAIN+MAIN,
MAIN+MONITOR, or MAIN (bridge connection).
• Independent 7-band graphic EQ is provided for both the
MONITOR section and the MAIN section. This allows the
volume and frequency response to be adjusted separately for
the main speakers and monitor speakers.
• Two limiter circuits are built-in to prevent excessive input
levels to the amp.
• A digital effect with three selectable effect types is built-in.
A variety of effects can be applied to add reverberation or
ambiance to vocals or instrumental sounds.
Precautions
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.
2. Ventilation
Allow a distance of 30 cm between the unit and the wall so
that heat generated from the unit will be released effectively.
Also, allow enough space between the unit and other devices.
If you mount the unit in an audio rack, keep a space of 40
cm on the top panel, and a space of 15 cm to the side panel.
Remove the rear panel of the rack or open a vent hole. If heat
release is inadequate, the unit will retain heat inside the unit,
which may cause a fire.
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
Owner's Manual
Contents
Front and rear panel ............................................ 2
Control panel .......................................................... 2
Input/output panel .................................................. 6
Rear panel .............................................................. 7
Connections ......................................................... 8
Basic Operation ................................................... 9
Using the digital effect ............................................ 9
Example setups ................................................. 10
As a band PA ........................................................ 11
Specifications ..................................................... 13
General specifications .......................................... 13
Input specifications ............................................... 14
Output specifications ............................................ 14
Dimensions ........................................................... 15
Block and Level diagram ...................................... 15
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.
9. Do not touch the heatsink when the EMX640 is in use.
It can get very hot.
E

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Table of Contents
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Summary of Contents for Yamaha EMX640

  • Page 1: Table Of Contents

    Thank you for purchasing the Yamaha EMX640 Powered Mixer. The EMX640 has the following features. In order to take full advantage of the EMX640 and enjoy long and trouble-free performance, please read this owner’s manual carefully, and keep it in a safe place for future reference.
  • Page 2: Front And Rear Panel

    15 dB peaking type LOW: 80 Hz 15 dB shelving type EMX640—Owner’s Manual Monitor controls (MONI) For each channel, this controls the amount of sig- nal that is sent to the MONITOR bus. The signal of the MONITOR bus is sent to the...
  • Page 3: Effect Section

    DIGITAL EFFECT ON switch When this switch is on (pressed), the digital effect built into the EMX640 can be used. In that case, the signal processed by the digital effect will be sent to the MAIN/MONITOR bus. The mix level...
  • Page 4: Main Section

    Note: To avoid distortion, adjust the MASTER control ( A ) so that the 0 indicator lights occa- sionally. EMX640—Owner’s Manual MAIN section This section allows you to adjust the tone and volume of the MAIN bus, the mix level of the built-in effect, and the mix level of the external input.
  • Page 5: Power Amp Section

    POWER indicator & PHANTOM switch POWER indicator This indicator will light when the power of the EMX640 is turned on. PHANTOM +48 V switch This switch turns the phantom power supply on/ off for the Lo-Z input jacks of channels 1~4 and MIC input jacks of channels 5~6.
  • Page 6: Input/Output Panel

    The nominal output level and impedance are +4 dB/10 k . Foot switch jack (FOOT SW) A separately sold Yamaha FC5 foot switch can be connected to this jack. If a foot switch is con- nected to this jack, you can use your foot to switch the built-in digital effect on/off.
  • Page 7: Rear Panel

    External output jacks (REC OUT/MONI- TOR/MAIN) These are output jacks which send line level sig- nals from the EMX640 to external devices. A ste- reo recording device such as a cassette recorder or MD recorder can be connected to the REC OUT...
  • Page 8: Connections

    Speaker connection There are three ways in which speakers can be connected to the EMX640; a single speaker each can be con- nected to either the A or the B jack of POWER AMP 1 and of POWER AMP 2, two speakers can be connected in parallel to both the A and B jacks of POWER AMP 1 and of POWER AMP 2, or a single speaker can be con- nected to the BRIDGE jack (bridge connection).
  • Page 9: Basic Operation

    The MIC and LINE jacks, however, can be used at the same time. Using the digital effect The EMX640 has a built-in digital effect, allowing reverberation or ambiance to be added to vocals or instru- mental sounds. Connect a mic or instrument to the desired channels, and adjust the volume and tone.
  • Page 10: Example Setups

    This section provides some ways in which the EMX640 can be used, and explains connections and operation. As a conference PA system/installed sound system Here is an example of using the EMX640 as a conference PA system or as an installed sound system. Power AMP 1 A/B...
  • Page 11: As A Band Pa

    As a band PA Here is an example of using the EMX640 as a small PA for a band. In this example, the monitor speakers are being sent a mix that is independent of the MAIN speaker mix. An external effect such as delay or reverb is also being used.
  • Page 12: Using An External Effect

    MAIN section. Use the graphic equalizers and MASTER controls of the MAIN/MONITOR sections to adjust the overall volume and tone. EMX640—Owner’s Manual Using an external effect Set the EFFECT section EFFECT OUT con- trol to the √ √ √ √ position.
  • Page 13: Specifications

    Master level control at nominal level and 1 channel level control at nominal level. HIGH 12 kHz shelving 2.5 kHz peaking 80 Hz shelving 120 V AC 60 Hz 230 V AC 50 Hz 240 V AC 50 Hz Specifications EMX640—Owner’s Manual...
  • Page 14: Input Specifications

    MONITOR OUT EFFECT OUT REC OUT (1, 2) • All output jacks are unbalanced. • 0 dB=0.775 Vrms, 0 dBV=1 Vrms. Specifications are subject to change without prior notice. EMX640—Owner’s Manual Input level Nominal impedance Nominal level Sensitivity 50~600 Mics –62 dB (616 V)
  • Page 15: Dimensions

    Clipping level REC OUT Dimensions Unit: mm LIMITER MAIN BRIDGE REC OUT MAIN MAIN MAIN MONITOR LIMITER EFFECT BRIDGE POWER AMP EFFECT OUT MAIN, MONITOR EMX640—Owner’s Manual MAIN POWER AMP 1 BRIDGE POWER AMP 2 MONITOR –10 –20 –30 –40 –50...
  • Page 16 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.

Table of Contents