American Audio 19MXR 用户手册

MASTER LEVEL - Use this level to control your main volume output. Try never to send an output of

more than +4dB to your system. Signal at levels higher than this will start to distort and may cause

damage to your system and speakers. Remember that a distorted signal from you mixer will only be

multiplied throughout your system.
CHANNEL GAIN LEVEL - The channel gain levels are not to be used as volume controls. Never use

the channel trim to set the output volume. These controls are used to aid in distortion control. Use

these control to preset your signal level before the crossfader. With your channel faders in the maxi-

mum position, use the channel trim level to set an average output level of about +4dB on you master

level meter.
HEADPHONES - To avoid damaging your headphones always be sure the headphone volume level (6)

is set to minimum before plugging them in. To avoid sever hearing damage, never put the headphone

on without making sure the headphone level is turned down.
MAIN MIC - The main mic connector uses a combo plug that allows you to connect either a 1/4”

unbalanced jack or by a standard 3-pin XLR balanced connector. The main mic also has an indepen-

dent volume control. When feedback occurs when using the mic, try lowering the level this may reduce

the feedback. Always leave the mic level to it’s minimum level when not in use. Note: We recommend 

that you use a 500-600ohm microphone for the best sound quality.
CHANNEL  LINE LEVEL SELECTOR SWITCHES - This switch is used to change the selected input

from phono to line and vice versa. The switch selectors are on the rear panel.

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American Audio

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   -   www.americanaudio.us   -   19MXR Instruction Manual Page 7

Every 19MXR has been thoroughly tested and has been shipped in perfect operating condition. Care-

fully check the shipping carton for damage that may have occurred during shipping. If the carton

appears to be damaged, carefully inspect your mixer for any damage and be sure all equipment neces-

sary to operate the mixer has arrived intact. In the event damage has been found or parts are missing,

please contact our toll free customer support number for further instructions. Please do not return the

mixer to your dealer without first contacting customer support.