Ashly MX-406 운영 매뉴얼 - 페이지 6

{카테고리_이름} Ashly MX-406에 대한 운영 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Ashly MX-406 12 페이지. Stereo microphone/line mixer
Ashly MX-406에 대해서도 마찬가지입니다: 기술 노트 및 사양 (2 페이지), 운영 매뉴얼 (12 페이지), 운영 매뉴얼 (12 페이지), 운영 매뉴얼 (16 페이지)

페이지 인쇄

Page - 6

Safety Instructions – 3

Introduction - 4

MX-406 Mixer – 5

The MX-406 is 2RU, and weighs 13 pounds.

Connectors & Cables – 5

Physical Description - 6

Front Panel

Rear Panel

Installation – 7

Typical Applications - 8

Factory Configs - 8

Troubleshooting - 9

Dimensions - 9

Specifications - 10

Warranty - 11

MX-406 Front Panel

Input Gain - This three position switch sets the

operating level of the microphone and line input

preamp. The corresponding switch values -

20db, -40dB, and -60dB refer not to the actual

gain, but rather to the expected nominal input

signal strength. Line level inputs (1/4" jack) will

likely use a setting of -20dB, while mic inputs

generally require a setting of -40dB for close

mic applications, and -60dB for quieter signals.

If a channel's clip LED is blinking, first turn

down that channel's level control. If the clip

LED is still flashing, turn down the input gain.

Clip - Input Clip LEDs monitor critical points

within the input channel. The clip LED turns on

whenever any portion of the audio path reaches

dB below actual clipping.

Treble/Bass - This concentric knob is used for

broad EQ changes to each input channel.

Channel EQ consists of a high shelf control

(treble) at 4KHz, and a 250Hz low shelf control

(bass). EQ boost or cut is ±12dB.

Aux - The aux send is an additional level

control used to send signal from each input

channel to monitors or an effect unit. The aux

master output combines all channel aux level

signals. The aux control is factory set to pre-

fader, pre-EQ, but can be internally switched to

post-fader, post EQ. To make this change, refer

to the procedure on page 8.

Level and Pan - This concentric knob adjusts

the level and stereo position of each channel. If

a channel's level control is always turned up to

9 or more, try increasing the gain first.

Conversely, if the level control is consistently

turned down to 1 or less, decrease the gain

setting first.

Stereo Line Input - This control adjusts the

level of the RCA jack stereo line input. It can be

used for tape, CD, or DVD audio inputs, and

can also be used for a stereo effect return. The

stereo line input can be used as stacking inputs

for supplementing the MX-406 with another

mixer.

Operator Manual – MX-406 Mixer

Aux Master Output - This control adjust the

level of the aux master 1/4" jack output, which

gets its signal from the six aux level controls on

the input channels. It is used for an effects unit

send, or can drive a power amplifier for

monitors or an extra loudspeaker zone.

Stereo Output Level - These two controls

determine the signal level to the 1/4" jack left

and right outputs. They are used to drive power

amplifiers for the main loudspeakers, or to

connect to a stereo recording device.

Mono Output Level - This control adjusts the

level of the summed mono output. It is

completely independent of the main left and

right master controls. In other words, changes

to either left or right output level will not affect

the mono output level.

10. Headphones Level - This control adjusts the

level of the stereo signal to the headphone

jack. Headphones should have an impedance

of 600 ohms or greater.

11. Output Meters - A pair of peak reading 10

segment LED meters are used to indicate

stereo output level in VU. 0 VU is equivalent to

+4 dBu (1.228Vrms). Green LED's are used

below 0 VU, yellow above 0 VU and two red

LED's indicate clipping. The clip LED's turn on

3dB below actual clipping, detecting excessive

signal level on any critical audio path within the

master section. If all outputs are turned down

and there is still clipping, then one or more

inputs must be turned down.

12. Phantom Power LED - The phantom power

switch is on the back panel. When the switch is

pressed in, the LED is lit and +48VDC is

applied to all six mic inputs for use with

condenser microphones. If there is a mix of

both condenser and dynamic microphones, the

phantom power will not affect the operation of

most dynamic mics.