Ashly MX-508 Manual de instruções - Página 4

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Operating Manual -MX-508 Stereo Microphone/Line Mixer

4. CONTROLS

4 .1 Input Level (Gain)

This control sets the operating level of the Microphone

preamp and Line Input . Best signal to noise ratio is obtained

with higher gain settings . It is therefore desirable to set the

Gain control as high as possible while still leaving enough

headroom (typically 20dB) to prevent distortion .

4 .2 Mic-Line Switch

This switch selects between the XLR microphone input

or the 1/4" line input jack as the signal source . It can also serve

as a "channel mute" switch when selected to the unused input .

4 .3 Channel Clip Indicator

This peak sensitive indicator monitors all level critical

points in the input channel and illuminates if any of them reach

levels 3 dB below clipping .

4 .4 Equalization

Channel EQ consists of a high shelf control at 15KHz

(middle of shelf), a sweepable mid control, and a 70Hz low

shelf control . The mid control is sweepable from 140Hz to

8KHz with a bandwidth of approximately 1 octave .

4 .5 Aux Sends

These are an additional pair of level controls to adjust the

feed to monitors or effects units . Aux 1 is factory preset to pre-

fader, pre-EQ, while Aux 2 is post-fader, post-EQ . Both Aux

sends can be internally switched to pre or post fader/EQ . Note:

See section on changing factory configurations.

4 .6 Level and Pan

This concentric pair of controls adjusts the level and

stereo position of the channel .

4 .7 Aux Master Sends

These two controls adjust the overall gain of the output

stages for the Aux 1 and Aux 2 Send outputs .

4 .8 Aux Master Returns With Pan

These two concentric level and pan controls adjust the

returning signal from effects units or auxiliary inputs to the

Main Left and Right outputs . Return 1 is stereo and return 2

is mono . If only the right connection to return 1 is made, this

return will function as mono with pan .

4 .9 Stereo Line In and Aux 1 Send

This control adjusts the back panel RCA and front

panel 3 .5mm Stereo Line In level to the Main Stereo

outputs . The RCA and 3 .5mm input jacks are electronically

buffered and then summed together . The outer concentric

control labeled "To Aux 1" sums the left and right Stereo

Line inputs to a mono signal and then applies it to the Aux 1

Master group for use with monitors or effects . It is "pre-

fader", or independent of the stereo level control .