Owner’s Manual Keep This Manual For Future Reference.
FCC INFORMATION (U.S.A.) 1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets 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. Cable/s supplied with this product MUST be used. Follow all installation instructions.
Precautions WARNING Installation • Connect this unit’s power cord only to an AC outlet of the type stated in this Owner’s Manual or as marked on the unit. Failure to do so is a fire and electrical shock hazard. • Do not allow water to enter this unit or allow the unit to become wet. Fire or electrical shock may result. • 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.
Precautions EMX88S/EMX68S—Owner’s Manual
Introduction Thank you for purchasing the Yamaha EMX88S/EMX68S Powered Mixer. The EMX88S/EMX68S has the following features. In order to take full advantage of the EMX88S/EMX68S 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 • The EMX88S/EMX68S features eight input channels (EMX88S), six input channels (EMX68S) that support a wide range of audio sources, from microphones to line-level devices.
EMX88S/EMX68S Quick Guide EMX88S/EMX68S Quick Guide Never connect the speakers in the manner shown below. Otherwise, the EMX88S/EMX68S’s builtin power amplifier will be damaged. The following steps (1–5) explain the basic connection and operation of the EMX88S/EMX68S. Also, please read “Front and Rear Panel” and “Basic Operation” following this Quick Guide section to learn more about using the EMX88S/ EMX68S.
EMX88S/EMX68S Quick Guide Connecting a microphone Make sure that the power is turned off to the EMX88S/EMX68S. Connect a microphone to the Low-Z jack or MIC jack. 7 Connecting a CD player, MD player, and/or cassette deck Connect a CD player or MD player to the 2TR IN jacks. Refer to the operation manual of the corresponding device for more information on the input and output of the device.
EMX88S/EMX68S Quick Guide Connecting an electric acoustic guitar or electric bass Connect an electric acoustic guitar or electric bass to the Super Hi-Z jacks. If you wish to connect multiple instruments, make a monaural connection as shown below. EMX88S (EMX68S) EMX88S (EMX68S) Electric-acoustic guitar Electric bass • If you wish to use a guitar signal processor or bass effect unit, connect them to the Hi-Z jack or LINE jack.
EMX88S/EMX68S Quick Guide STEP 3 Sound output Set the MASTER control in the MAIN section to “√ ,” then while playing an instrument connected to a channel to be checked (or while speaking to a connected microphone), adjust the LEVEL control of the corresponding channel so that the 0 LED of the peak level indicator in the MAIN section will light up momentarily. • Do not press the PAD switch if sound is input from the microphone. Otherwise, press the PAD switch on.
Front and rear panel Front and rear panel Control panel ■ Channel section Use these controls to adjust factors such as the equalization, (frequency response), volume, effect and monitor output level for the input signal to each channel. 1 2 MONITOR control For each channel, this controls the amount of signal that is sent to the MONITOR bus. The signal of the MONITOR bus is sent to the MONITOR jacks (input/output panel 7).
Control panel ■ DIGITAL EFFECT section This section allows you to turn the built-in digital effect on/off and to select the effect type. 11 val between the last two presses will be set as the delay time. The specified time will be remembered even if the power is turned off. The LED beside the switch will blink in synchronization with the delay time only when the effect type is TAP DELAY.
Front and rear panel D 2TR IN control This adjusts the amount of signal that is sent from the 2TR IN jacks to the stereo (MAIN L, R) bus. These graphic equalizer settings affect both the MONITOR bus signal output to the speakers and the line level signal sent from MONITOR jack signal (input/output panel 7). H EFFECT RTN control E MASTER control This control adjusts the stereo (MAIN L, R) bus signal output level.
Control panel ■ POWER AMP section Here you can select the operating mode of the power amp. You can also check the operation of the limiter circuit. M 13 ■ YAMAHA SPEAKER PROCESSING O ON/OFF switch This switch enables you to compensate the low range of the speakers. The low range balance when this switch is on varies depending on the speakers. First, check the low range balance by auditioning the resultant sound, then set this switch to on or off.
Front and rear panel Input/output panel 2 4 1 3 1 Channel input jacks (Hi-Z, Low-Z) Pin 1: ground Pin 2: hot (+) Pin 3: cold (–) Hi-Z jacks (TRS phone jacks) Sleeve: ground Tip: hot (+) Ring: cold (–) S + - GND R T GND - + Note: It is not possible to simultaneously use both the Hi-Z and Low-Z inputs of a given channel. For each channel, use only one of the inputs as appropriate for the input source. Phantom power is switched on/off in simultaneously for channels 1–8 (EMX88S), 1–6 (EMX68S).
Input/output panel 4 EFFECT OUT jack The input of an external effect such as a delay or echo can be connected to this jack. The signal adjusted by the EFFECT control of each channel will be sent to the EFFECT bus, its level adjusted by the EFFECT OUT control, and output from this jack. The nominal output level and impedance are +4 dB/10 kΩ. 5 FOOT SW jack You can connect a Yamaha FC5 foot switch (sold separately) to this jack and use it to turn the built-in digital effect on and off.
Front and rear panel Rear panel 2 1 1 Speaker output jacks (SPEAKERS) 2 AC IN socket Connect speakers here. The EMX88S/EMX68S has two internal power amps. There are three ways in which speakers can be connected to the EMX88S/EMX68S. Connect the included power cord to this socket. Connect the plug of the power cord to an AC outlet that meets the requirements stated in the specifications in this document.
Connections 17 Connections When connecting various devices, make sure the cables and plugs have the correct rating. Be sure to use cables designed for the purpose when you connect speakers to speaker jacks. ■ Connecting main speakers There are three ways in which speakers can be connected to the EMX88S/EMX68S. The speaker impedance requirement varies depending on how you connect the speakers. Refer to the diagrams below to make sure the speaker impedance will not be lower than the specified value.
Connections ■ When the power amp select switch is set to MAIN (L+R) BRIDGE: • Bridge connection Connect only one 8–16 ohm speaker to the BRIDGE jack. The speaker will output the combined signal of the MAIN L bus + R bus. A maximum output of 800 W will be obtained when an 8-ohm speaker is used. Power amp select switch Not used Not used 8Ω–16Ω Caution: When using two-channel connection or two-channel parallel connection, do not connect a speaker to the BRIDGE jack.
Connections 19 ■ Example connections Synthesizer, Drum Box Cassette Deck CD Player Microphone Foot switch (YAMAHA FC5) 88 Effect Processor Main Speakers Electric bass Electric-acoustic guitar Power amp * Speakers normally connect to the jacks on the rear panel. When more speaker outputs are needed, use the MAIN (STEREO) jacks are for stereo output and the MONITOR jack is for monaural output.
Basic Operation Basic Operation This section explains basic operation of the EMX88S/EMX68S. Connecting microphones and instruments Sending an independent mix to the monitor speakers 1 Before connecting mics or instruments, 1 Set the MONITOR section MASTER con- make sure that the power of all equipment (where applicable) is turned off. Also make sure that the level controls of each channel of the EMX88S/EMX68S and the MASTER control of the MAIN section are turned down.
Using the digital effect 21 Controllable parameter No. Program Description Parameter Variable range REVERB HALL Reverberation simulating a spacious expanse such as a concert hall. Reverb time 0.3–10.0s REVERB ROOM Reverberation simulating the acoustics of a small room. Reverb time 0.3–3.2s REVERB PLATE Simulation of a plate reverb device. Produces a hard-sounding reverberation. Reverb time 0.3–10.0s REVERB VOCAL 1 REVERB VOCAL 2 Ideal reverb for vocals. Reverb time 0.3–10.
Example setups Example setups This section provides some ways in which the EMX88S/EMX68S can be used, and explains connections and operation. As a conference PA system/installed sound system This example shows the EMX88S/EMX68S used as a conference PA system or sound system. A sound mix different from that of the main speakers can be sent to the powered monitor speakers connected to the MONITOR jack.
As a band PA 23 As a band PA Here is an example of using the EMX88S/EMX68S as a small PA for a band. In this example, an external effect such as delay or reverb is also being used. Connections Set to MAIN (L+R) - MON Main Speakers SPEAKERS A 1 2 SPEAKERS B 1 2 88 Effect Processor Monitor Speakers Footswitch (YAMAHA FC5) (TAP) Microphone Electric bass *1 Footswitch (YAMAHA FC5) (EFFECT ON/OFF) Electric-acoustic guitar Synthesizer *1.
Example setups • Connect mics or instruments, such as keyboards, to the channel input jacks. Using an external effect • Connect the main speakers to the SPEAKERS A, B 1/2 jacks and the monitor speakers. √” position. trol to the “√ • If you will be using an external effect such as delay or reverb, connect the EMX88S/EMX68S’s EFFECT OUT jack to the input jack of the external effect, and connect the output jack of the external effect to the EMX88S/EMX68S’s AUX IN jack.
Installing an optional rack mount kit 25 Installing an optional rack mount kit You can rack-mount the EMX88S/EMX68S using an optional rack mount kit (RK-88). Rack mount kit RK-88 Installing the rack mount bracket 1 Remove the carrying handle by loosening and removing four screws. • Bracket × 2 • Screw × 6 Before you rack-mount the EMX88S/EMX68S, make sure that sufficient ventilation will be maintained. (Never install the unit in a sealed rack.
Troubleshooting Troubleshooting The following table describes the possible malfunctions of this device, and the appropriate actions to be taken in each case. Problem Cause Action Please wait. When the device cools off, normal operation will resume automatically. However, please check the following three points to prevent The load on the amplifier of this device the problem from recurring. • If the level setting is excessive, lower it to the was too great, and the protection cirnominal level.
Specifications 27 Specifications ■ General specifications Maximum output power MAIN L, R: 400 W+400 W/4Ω @0.5% THD at 1 kHz, 270 W+270 W/8Ω @0.5% THD at 1 kHz MAIN BRIDGE: 800 W/8Ω @0.5% THD at 1 kHz Frequency response 20 Hz–20 kHz +1 dB, –3 dB @1 W output into 8Ω (SPEAKERS OUT) 20 Hz–20 kHz +1 dB, –3 dB @+4 dB output into 10 kΩ (MAIN OUT, MONITOR OUT, EFFECT OUT) Total harmonic distortion Less than 0.5% @20 Hz–20 kHz, 200 W output into 4Ω (SPEAKERS OUT) Less than 0.
Specifications ■ Input specifications Input level Input connectors Actual load PAD impedance CH INPUT (Low-Z) (CH1–4/1–6) OFF CH INPUT (Hi-Z) (CH1–2/1–4) OFF CH INPUT (Super Hi-Z) (CH3–4/5–6) OFF Nominal impedance Sensitivity*1 Max. before clipping Nominal level 50–600Ω Mics –62 dB (0.616 mV) –50 dB (2.45 mV) 3 kΩ ON –20 dB (77.5 mV) XLR-3-31 600Ω Lines –32 dB (19.5 mV) –20 dB (77.5 mV) +10 dB (2.45 V) type*2 50–600Ω Mics –52 dB (1.95 mV) –40 dB (7.
Dimensions 29 ■ Dimensions 328 305 482 Unit: mm EMX88S/EMX68S—Owner’s Manual
CH INPUT (CH5-6) (CH7-8) CH INPUT (CH3-4) (CH5-6) CH INPUT (CH1-2) (CH1-4) R –50dB –40dB –30dB –20dB –10dB 0dB +10dB +20dB +30dB +40dB LINE [–10dB] L/MONO MIC [–50dB] Super Hi-Z [–30/0dB] Low-Z [–50/–20dB] Hi-Z [–40/–10dB] TAP SW FOOT SW [–10dBV] [–7.
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