User manual YAMAHA EMX 640

[. . . ] POWERED MIXER Owner's Manual Introduction Thank you for purchasing the Yamaha EMX640 Powered Mixer. 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. The input signals for the two channels can be selected as MAIN+MAIN, MAIN+MONITOR, or MAIN (bridge connection). [. . . ] Adjust appropriate control so that the indicator lights up for only a short while when the signal reaches the maximum level. Note: The indicator lights up or flashes for a longer duration if the power amp section is significantly overloaded, which could result in malfunction. Avoid such a situation. L 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. J Power amp select switch Select one of the following three settings to specify the signals that will be output from power amp 1/2. · MAIN-MONITOR With this setting, the MAIN and MONITOR sections can be used independently. The MAIN bus signal will be output from the POWER AMP 1 A/ B jacks, and the MONITOR bus signal will be output from the POWER AMP 2 A/B jacks. · MAIN-MAIN With this setting, the two power amp channels can be used independently. The MAIN bus signal will be output from the POWER AMP 1 A/B jacks and from the POWER AMP 2 A/B jacks. · MAIN BRIDGE With this setting, the two power amp channels (A and B) will be bridge connected. If a foot switch is connected to this jack, you can use your foot to switch the built-in digital effect on/off. The Digital Effect ON switch on the front panel must be set to ON in order to use a foot switch. 5 External input jacks (AUX IN/TAPE IN) These are input jacks that allow the signal from an external device to be added to the MAIN output. Monaural output devices such as external effects can be connected to the AUX IN jack, and stereo output devices such as cassette recorder or CD players can be connected to the TAPE IN jacks. EMX640--Owner's Manual Rear panel 7 The nominal input level and impedance are ­ 10 dB/600 for the AUX IN jack, and ­10 dBV/ 600 for the TAPE IN jacks. · REC OUT jacks: The MAIN bus signal before it has passed through the MASTER control and graphic equalizer · MONITOR jack: The MONITOR bus signal which has passed through the Monitor MASTER control and graphic equalizer · MAIN jack: The MAIN bus signal which has passed through the Main MASTER control and graphic equalizer The nominal output level and impedance are ­ 10 dBV/10 k for the REC OUT jacks, and +4 dB/10 k for the MONITOR/MAIN jacks. 6 External output jacks (REC OUT/MONITOR/MAIN) These are output jacks which send line level signals from the EMX640 to external devices. A stereo recording device such as a cassette recorder or MD recorder can be connected to the REC OUT jacks, and a playback device such a power amp can be connected to the MONITOR and MAIN jacks. The signals sent from each jack are as follows. Rear panel 1 B A SPEAKERS B A POWER AMP 2 BRIDGE POWER AMP 1 POWER 2 ON / OFF 1 Speaker output jacks (POWER AMP 1 A/B, POWER AMP 2 A/B, BRIDGE) Speakers can be connected to these jacks. The EMX640 contains a two-channel power amp, and the two channels can be used independently (maximum output 200 W+200 W) or in bridge connection (maximum output 400 W). If the two channels are used independently, two speakers can be connected to the POWER AMP 1 A/B jacks and two more to the POWER AMP 2 A/ B jacks, for a total of four speakers. If the two channels are used in a bridge connection, only one speaker can be connected to the BRIDGE jack. If you wish to use the two channels independently, but only connect a speaker to the A jack or B jack, use a 4~8 speaker. In this case, be careful not to connect a speaker to the BRIDGE jack. If you are connecting a speaker to the BRIDGE jack, use a 8~16 speaker. In this case, be careful not to connect a speaker to the POWER AMP 1/2 A/B jacks. Note: Use the power amp select switch (control panel J) to select the signal which is sent to the jacks, or to activate the bridge connection. Caution: When using a bridge connection, do not connect anything to the POWER AMP 1 and POWER AMP 2 jacks. Likewise, when using the POWER AMP 1 and/or POWER AMP 2 jacks, do not connect anything to the BRIDGE jack. 2 Power switch This switch turns the power of the EMX640 on/ off. [. . . ] : THD0. 5% DIGITAL EFFECT MUTE : on/off USA and Canada Europe Other 200 W 480×275×275 mm 15 kg 120 V AC 60 Hz 230 V AC 50 Hz 240 V AC 50 Hz Crosstalk at 1 kHz Input channel equalization Meters Graphic equalizer Internal digital effect Phantom power Limiter LIMIT indicators Foot switch Power requirement Power consumption Dimensions (WxHxD) Weight EMX640--Owner's Manual 14 Specifications s Input specifications Input level Input connectors PAD Actual load impedance Nominal impedance Sensitivity1 ­62 dB (616 µV) ­32 dB (19. 5 mV) ­52 dB (1. 95 mV) ­22 dB (61. 6 mV) ­62 dB (616 µV) ­22 dB (61. 6 mV) Nominal level ­50 dB (2. 45 mV) ­20 dB (77. 5 mV) ­40 dB (7. 75 mV) ­10 dB (245 mV) ­50 dB (2. 45 mV) ­10 dB (245 mV) Max. before cliping ­20 dB (77. 5 mV) XLR-3-31 type 600 Lines 50~600 Mics 10 k ON 3 k 10 k 10 k 10 k 600 Lines 50~600 Mics 600 Line 600 Line 600 Line +20 dB (7. 75 V) ­20 dB (77. 5 mV) +20 dB (7. 75 V) +10 dB (2. 45 V) ­10 dB (245 mV) Phone jack (TRS) XLR-3-31 type Phone jack Connector type CH INPUT (Lo-Z) (CH1~4) CH INPUT (Hi-Z) (CH1~4) MIC INPUT (CH5·6) OFF 3 k ON OFF 50~600 Mics LINE INPUT (CH5·6) (1, 2) TAPE IN (1, 2) AUX IN ­20 dBV (100 mV) ­10 dBV (316 mV) +17. 8 dBV (7. 75 V) Phono jack ­22 dB (61. 6 mV) ­10 dB (245 mV) +20 dB (7. 75 V) Phone jack 1. Sensitivity is the lowest level that can produce an output of +4 dB (1. 23 V) or the nominal output level when the unit is set at maximum gain. (All level controls are at maximum position. ) · CH INPUT and MIC INPUT connectors are balanced and others are unbalanced. [. . . ]