Yamaha 4 MG16/4 MG12/4 Owners Manual - Page 18

Front & Rear Panels Channel Control Section Channels 1 to 8 (MG16/4) 1 to 4 (MG12/4) (Monaural) Channels 9/10 and 11/12 (MG16/4) 5/6 and 7/8 (MG12/4) (Stereo) Channels 13/14 and 15/16 (MG16/4) 9/10 and 11/12 (MG12/4) (Stereo) 1 3 2 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 0 0 0 A A A 1 GAIN Control Adjusts the input signal level. To get the best balance between the S/N ratio and the dynamic range, adjust the level so that the peak indicator (2) comes on only at about maximum input level. The -60 to -16 scale indicates the MIC input adjustment level. The -34 to +10 scale indicates the LINE input adjustment level. 2 PEAK Indicator Detects the peak level of the post-EQ signal, and lights up red when the level reaches 3 dB below the clipping level. For XLR-equipped stereo input channels (9/10 and 11/12 on the MG16/4; 5/6 and 7/8 on the MG12/4), detects both post-EQ and post-mic-amp peak levels, and lights red if either of these levels reaches 3 dB below the clipping level. 3 Switch (High Pass Filter) This switch toggles the HPF on or off. To turn the HPF on, press the switch in ( ). The HPF cuts frequencies below 80 Hz. (But note that regardless of the switch setting, the mixer does not apply this HPF to the line inputs of stereo input chan- nels.) 4 Equalizer (HIGH, MID, and LOW) This three-band equalizer adjusts the channel's high, mid, and low frequency bands. Setting the knob to the position produces a flat frequency response. Turning the knob to the right boosts the corresponding frequency band, while turning to the left attenuates the band. The following table shows the EQ type, base frequency, and maximum cut/boost for each of the three bands. Band HIGH MID LOW Type Base Frequency Maximum Cut/Boost Shelving 10 kHz Peaking 2.5 kHz ±15 dB Shelving 100 Hz 5 AUX1 and AUX2 Controls The AUX1 knob controls the signal level that the channel sends to the AUX1 bus; the AUX2 knob controls the signal level to the AUX2 bus. The knob should generally be set close to the position. If you are using stereo channels, the signals from the L (odd) and R (even) channels are mixed and sent to the AUX1 and AUX2 buses. NOTE Allows you to output the signal to the buses regard- less of the setting of the ST switch 8. Note: Within this manual, all panel illustrations show the MG16/4 panel. 18 MG16/4, MG12/4