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Yamaha EMX 640 Owner's Manual page 13

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Maximum output power
200 W/4Ω @0.5% THD at 1 kHz
20 Hz~20 kHz +1 dB, –3 dB @1 W output into 8Ω (POWER AMP OUT)
Frequency response
20 Hz~20 kHz +1 dB, –3 dB @+4 dB output into 10 kΩ (MAIN OUT, MONITOR OUT, EFFECT
SEND)
Less than 0.5% @20 Hz~20 kHz, 100 W output into 4Ω (POWER AMP OUT)
Total harmonic distortion
Less than 0.2% @20 Hz~20 kHz, +14 dB output into 10 kΩ
(MAIN OUT, MONITOR OUT, EFFECT SEND)
–123 dB equivalent input noise, –65 dB residual output noise
(POWER AMP OUT)
–88 dB residual output noise (MAIN OUT, MONITOR OUT, EFFECT SEND)
–79 dB (83 dB S/N)
MAIN OUT, MONITOR OUT
Hum & noise
(Average, Rs=150Ω)
–69 dB (73 dB S/N)
(with 20 Hz~20 kHz BPF)
MAIN OUT, MONITOR OUT
–75 dB (79 dB S/N)
EFFECT SEND
–69 dB (73 dB S/N)
EFFECT SEND
86 dB CH IN (Lo-Z) to POWER AMP OUT (CH1~4)
66 dB CH IN (Lo-Z) to MAIN OUT, MONITOR OUT (CH1~4)
72 dB CH IN (Lo-Z) to EFFECT OUT (CH1~4)
48 dB CH IN (Lo-Z) to REC OUT (CH1~4)
Maximum voltage gain
56 dB CH IN (Hi-Z) to MAIN OUT, MONITOR OUT (CH1~4)
(PAD: OFF)
26 dB AUX IN to MAIN OUT
22 dB TAPE IN to MAIN OUT
66 dB MIC IN to MAIN OUT, MONITOR OUT (CH5•6)
24 dB LINE IN to MAIN OUT, MONITOR OUT (CH5•6)
Crosstalk at 1 kHz
65 dB adjacent input, 65 dB input to output
±15 dB Maximum
HIGH
12 kHz shelving
Input channel equalization
MID
2.5 kHz peaking
LOW
80 Hz shelving
* Turn over/roll-off frequency of shelving: 3 dB below maximum variable level.
Meters
5 POINTS LED METER (–10, –5, 0, +3, +6 dB)
7 bands (125, 250, 500, 1k, 2k, 4k, 8k Hz)
Graphic equalizer
±12 dB Maximum
Internal digital effect
3 types (Vocal, L Hall, S Hall)
+48 V is supplied to electrically balanced inputs for powering condenser microphones via 6.8 kΩ
Phantom power
current limiting/isolation resisters.
Limiter
Comp. : THD≥0.5%
LIMIT indicators
Turns on. : THD≥0.5%
Foot switch
DIGITAL EFFECT MUTE : on/off
USA and Canada
120 V AC 60 Hz
Power requirement
Europe
230 V AC 50 Hz
Other
240 V AC 50 Hz
Power consumption
200 W
Dimensions (WxHxD)
480×275×275 mm
Weight
15 kg
Master level control at nominal level and all channel
level controls at minimum.
Master level control at nominal level and 1 channel
level control at nominal level.
Master level control at nominal level and all channel
level controls at minimum.
Master level control at nominal level and 1 channel
level control at nominal level.

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