Yamaha MG20XU Owner's Manual - Page 18

Controls and Connectors !0 Equalizer ([HIGH]/[MID]/[LOW]) 3 Band [MID] Sweep 3 Band 2 Band Equalization Types and Characteristics 3 Band [MID] Sweep 3 Band 2 Band MG20XU/ MG20 CH 1 - 12 CH 13/14 - 19/20 - MG16XU/ MG16 CH 1 - 8 CH 9/10 - 15/16 - MG12XU/ MG12 - CH 1 - 7/8 CH 9/10 - 11/12 The equalizer shapes the high, mid, and low audio frequencies. Turning the knob to the right amplifies (boosts) the corresponding frequency band, while turning it to the left attenuates (cuts) the band. Setting the knob to the middle "t" position produces a flat response in the corresponding band. The upper knob sets the variable mid frequency, while the lower knob sets the amount of attenuation or boost (counterclockwise/clockwise) for the range. The following table shows the EQ type, frequency, and cut/ boost range for each of the three bands. Band HIGH MID LOW Type Shelving Peaking Shelving Frequency 10 kHz 2.5 kHz* 100 Hz Cut/Boost range ±15 dB * The signals from mono input jacks of the MG20XU/MG20 and MG16XU/MG16 can be adjusted from 250 Hz to 5 kHz. !1 [AUX 1 - 4] knobs [PRE] switches [AUX (2, 4)/FX] knobs MG20XU/MG16XU: [AUX1], [AUX2 - 3], [AUX4/FX] MG20/MG16: [AUX1], [AUX2 - 4] MG12XU: [AUX1], [AUX2/FX] MG12: [AUX1 - 2] The levels of each signal sent to the AUX 1 - 4 buses from each channel can be adjusted independently. On stereo input channels, the Line L (odd) and Line R (even) input signals are mixed before being sent to each AUX bus. Adjust the knobs so that they are near or at the "t" (nominal) position. NOTE • The [AUX1] knob indicated "PRE" adjusts the level of the prefader signal (before fader adjustment). • The [PRE] switch on [AUX1] and [AUX2] can be used to select whether the pre-fader ( ) (the signal before fader adjustment) or post fader ( ) (the signal after fader adjustment) signal is sent to the AUX bus by the [PRE] switch. • The [AUX4/FX] and [AUX2/FX] knobs are used to adjust the level of the signal sent to the FX bus (built-in effects) in addition to the AUX bus. The same signal level is sent to the AUX buses and FX buses connected to these knobs. !2 [PAN] knobs [PAN/BAL] knobs [BAL] knobs • PAN: Sets the position of the sound image within the stereo field. This knob adjusts the volume balance of each channel sent to the STEREO L/R bus. When the knob is set to the 12 o'clock position, the channel's sound will be sent to the L and R of the STEREO L/R bus at the same volume. In this case, the sound image is positioned at the center. If the bus assign switch [1-2] or [3-4] is pressed, this knob adjusts the volume balance sent to the GROUP bus. When the knob is set to the 12 o'clock position, the same volume is sent to each GROUP bus. If the knob is turned completely to the left, the signal is sent to the GROUP 1 or GROUP 3 bus only; if the knob is turned completely to the right, the signal is sent to the GROUP 2 or GROUP 4 bus only. 18 MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner's Manual