Yamaha EMX 68S, Service Manual

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3
EMX68S / EMX88S
SPECIFICATIONS
●
General specifications
Maximum output power
MAIN L, R: 400 W+400 W/4
Ω
@0.5% THD at 1 kHz, 270 W+270 W/8
Ω
@0.5% THD at 1 kHz
MAIN BRIDGE: 800 W/8
Ω
@0.5% THD at 1 kHz
Frequency response
20 Hz–20 kHz +1 dB, –3 dB @1 W output into 8
Ω
(SPEAKERS OUT)
20 Hz–20 kHz +1 dB, –3 dB @+4 dB output into 10 k
Ω
(MAIN OUT, MONITOR OUT, EFFECT OUT)
Total harmonic distortion
Less than 0.5% @20 Hz–20 kHz, 200 W output into 4
Ω
(SPEAKERS OUT)
Less than 0.3% @20 Hz–20 kHz, +14 dB output into 10 k
Ω
(MAIN OUT, MONITOR OUT, EFFECT OUT)
Hum & noise
(Average, Rs=150
Ω
)
(with 20 Hz–20 kHz BPF)
–124 dB equivalent input noise, –65 dB residual output noise (SPEAKERS OUT)
–88 dB residual output noise (MAIN OUT, MONITOR OUT)
–79 dB (MAIN OUT) Master level control: nominal level, All channel level controls: minimum
–75 dB (MONITOR OUT) Master level control: nominal level, All channel level controls: minimum
–69 dB (MAIN OUT) Master level control: nominal level, 1 channel level control: nominal level
–84 dB (EFFECT OUT) All channel level controls: minimum
–64 dB (EFFECT OUT) 1 channel level control: nominal level
Maximum voltage gain
86 dB CH IN (Lo-Z) to SPEAKERS OUT
66 dB CH IN (Lo-Z) to MAIN OUT, MONITOR OUT
66 dB CH IN (Lo-Z) to EFFECT OUT
48 dB CH IN (Lo-Z) to REC OUT
56 dB CH IN (Hi-Z) to MAIN OUT, MONITOR OUT
46 dB CH IN (Super Hi-Z) to MAIN OUT
26 dB AUX IN to MAIN OUT
24 dB 2TR IN to MAIN OUT
66 dB MIC IN to MAIN OUT
26 dB LINE IN to MAIN OUT
Crosstalk at 1 kHz 65 dB adjacent input, 65 dB input to output
Input channel equalization
±
15 dB Maximum
HIGH 10 kHz shelving
MID 2.5 kHz peaking
LOW 100 Hz shelving
* Turn over/roll-off frequency of shelving: 3 dB below maximum variable level.
Meters 5 POINTS LED METER (MAIN OUT L/R, MONITOR OUT)
Graphic equalizer
7 bands (125, 250, 500, 1k, 2k, 4k, 8k Hz)
±
12 dB Maximum (MAIN OUT, MONITOR OUT)
Internal digital effect 16 programs, parameter control, tap delay control
Phantom power +15 V (balanced input)
Limiter Comp. : THD
≥
0.5% (SPEAKERS OUT)
LIMIT indicators Turns on. : THD
≥
0.5% (SPEAKERS OUT)
Protection circuit (Power
amp)
POWER switch on/off mute, DC detection, TEMP (heatsink temp.
≥
90
°
C)
Fan circuit stop — low speed (50
°
C) — variable — high speed (70
°
C)
Foot switch (FC5) DIGITAL EFFECT MUTE : on/off, Tap delay
Optional accessories RK-88, FC5
Power requirement/
Power consumption
USA and Canada 120 V AC 60 Hz/300W
Europe 230 V AC 50 Hz/350W
Other 240 V AC 50 Hz/350W
Dimensions (WxHxD) 482 x 305 x 328 mm
Weight 15.5 kg
Supplied accessories AC power cord, Owner’s Manual