User manual YAMAHA EM-100 EM-80

[. . . ] Check the output signal level via the LIMITER indicator (M). +11dB +4dB +10dB 0dB Power Amplifier output section level diagram (bottom right) MONITOR section K These plots show the nominal output and maximum output levels of signals received at the SPEAKERS jacks. If the output level is +4dB (Level Meter "0"), the internal power amplifier will deliver 80W into a 4 load. If the output level is +11dB (LIMITER indicator lights), the internal amplifier will deliver a maximum of 400W into a 4 load. If you are using the BRIDGE jack, the internal power amplifier will deliver 160W into an 8 load with a +4dB signal and a maximum of 800W into an 8 load with a +11dB signal. K Level Meter This LED display shows the level of signals received at the MONITOR OUT jack (input/output panel 7). [. . . ] Note: The signal is sent to the EFFECT bus from a location after the level control (5) of each channel. This means that the amount of signal that is sent to the EFFECT bus will be affected not only by the setting of the effect control, but also by the setting of the level control. 2 3 4 5 6 1 Equalizer controls (HIGH, MID, LOW) This is a 3-band equalizer that adjusts the high frequency range, mid frequency range, and low frequency range of each channel. Response is flat when the knobs are in the "w" position. Rotating it toward the right will boost the corresponding frequency band, and rotating it toward the left will cut it. The base frequency (or center frequency), range of boost or cut, and equalizer type of each band are as follows. HIGH: 10 kHz ±15 dB shelving type MID: 2. 5 kHz ±15 dB peaking type LOW: 100 Hz ±15 dB shelving type 4 PAN control (BAL/PAN control for CH7/8 (EMX88S), CH5/6 (EMX68S)) This knob adjusts the stereo image (L/R) for each channel. Adjust for equal volume on left and right with a sound source input to the CH7 and 8 (EMX88S), CH5 and 6 (EMX68S) LINE connectors (L/R). 5 LEVEL control This adjusts the output level for each channel. 6 PAD switch (1­6 (EMX88S) only, 1­4 (EMX68S) only) This switch attenuates the input signal by 30 dB. When connecting a line level device to channels 1­6 (EMX88S), 1­4 (EMX68S), or if the mic input is distorted, turn this switch on (the pressed-in position). EMX88S/EMX68S--Owner's Manual Control panel 11 s DIGITAL EFFECT section This section allows you to turn the built-in digital effect on/off and to select the effect type. 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. s MAIN section This section allows you to adjust the tone and volume of the stereo (MAIN L, R) bus, the mix level of the built-in effect, and the mix level of the external input. 7 A F 8 9 0 B 7 PROGRAM selector This knob selects the effect type for the internal digital effect. E C D A Graphic equalizer The EMX88S/EMX68S has a 7-band graphic equalizer for adjusting the frequency response of the stereo (MAIN L, R) bus signal. This allows you to cut or boost each frequency band by a maximum of ±12dB. The on/off setting of this switch does not affect the signal from the AUX IN jacks or 2TR IN jacks. N Power amp select switch Select one of the following settings to specify the signals to be routed to the corresponding jacks according to the speaker connection at the SPEAKERS jacks 1 on the rear panel. · MAIN L-R The stereo (MAIN L, R) bus signals are output from the SPEAKERS A 1, 2 jacks and the SPEAKERS B 1, 2 jacks. The final level of these signals is adjusted by the MAIN MASTER control. · MAIN (L+R)-MON The MONITOR bus signals are output from the SPEAKERS B 1, 2 jacks, and a monaural signal that is a mix of the stereo (MAIN L, R) bus signals is output from the SPEAKERS A 1, 2 jacks. The final level of these signals is adjusted by the MAIN MASTER control and the MONITOR MASTER control. · MONO (BRIDGE) The monaural signal that is a mix of the stereo (MAIN L, R) bus is output from the BRIDGE jack. The final level of this signal is adjusted by the MAIN MASTER control. Set the switch to this position when you connect only a single speaker for high-volume amplification. P s Power switch and indicator Q Q Power ON/OFF switch and indicator This switch turns the power of the EMX88S/ EMX68S on/off. When the switch is turned on, the indicator lights up. Note: Before turning the EMX88S/EMX68S on/ off, turn down the MASTER controls of the MONITOR and MAIN section. EMX88S/EMX68S--Owner's Manual 14 Front and rear panel Input/output panel 2 4 1 1 Channel input jacks (Hi-Z, Low-Z) 1­6 (EMX88S), 1­4 (EMX68S) These are the input jacks for channels 1­6 (EMX88S), 1­4 (EMX68S). By using the PAD switches (control panel 6) you can connect any of the jacks to a wide range of sources from mics to line level devices (synthesizers or rhythm boxes etc. ). [. . . ] the cautions given at the beginning of this manchannel control section or main section, Sound is no ual and take appropriate measures to insure insufficient ventilation, or insufficient longer outadequate ventilation. load impedance of the connected speakput from the · If the load impedance (including a short) is too ers. low, refer to the chapter on connections (page 15) and change the connections so that the impedance is correct. Connections between devices have come loose. [. . . ]