American Audio 14MXR User Manual And Reference Manual page 9

14MXR
1. SOURCE SELECTOR, CHANNEL EQ, LPF/HPF FILTER, BANDWIDTH, CUE SELECTOR, &
CHANNEL VOLUME FADER -
SOURCE SELECTOR SWITCH - These switches are used to select the input source assigned to
each channel. Each channel may only be assigned one input source at a time. This switch must be in
the "ANALOG" position for turntable and line operation.
CHANNEL GAIN CONTROL - This adjustment is used to adjust the audio source signal input gain
for a channel. Never use the gain control to adjust a channels output volume. Setting the gain level
properly will ensure a clean output signal. An improper gain level adjustment will send a distorted
signal throughout the entire audio line which may damage speakers and amplifiers. To properly set a
channels gain level control:
1. Be sure the MASTER VOLUME CONTROL (3) is set to level 8.
2. Set the CHANNEL FADER to level 8.
3. Begin playback on an audio source connected to the channel you are adjusting.
4. Use the Gain Control to adjust an average output volume of +4 dB.
5. Repeat this step for all channels.
CHANNEL TREBLE CONTROL - This knob is used to adjust the treble levels of a channel allowing
for a maximum treble gain of 12dB or maximum decrease of -∞dB. Turning the knob in a counter-
clockwise direction will decrease the amount of treble applied to a channel signal, turning the knob in
a clockwise direction will increase the amount of treble applied to a channel signal.
CHANNEL MIDRANGE CONTROL - This knob is used to adjust the midrange levels of a channel
allowing for a maximum midrange gain of 12dB or maximum decrease of -∞dB. Turning the knob in a
counter-clockwise direction will decrease the amount of midrange applied to a channel signal, turning
the knob in a clockwise direction will increase the amount of midrange applied to a channel signal.
CHANNEL BASS CONTROL - This knob is used to adjust the low frequency levels of a channel
allowing for a maximum bass gain of 12dB or maximum signal decrease of -∞dB. Turning the knob in
a counter-clockwise direction will decrease the amount of bass applied to a channel signal, turning the
knob in a clockwise direction will increase the amount of bass applied to a channel signal.
LPF/HPF CONTROL - This knob is used to control the LPF/HPF filter. The LED indicator will glow
when the filter is On. The center position for the Filter is neutral so the signal is will not be filtered. Turn
the knob to the left from the neutral position to set the low pass filter, this will cut off all frequencies
higher than the amount set on the filter. Turn the knob to the right from the neutral position to set the
high pass filter, this will cut off all frequencies lower than the amount set on the filter.
BANDWIDTH CONTROL - This knob is used in conjuction with the LPF/HPF filter.
CUE SELECTOR BUTTON - These buttons are used to activate a channels "CUE" mode. The CUE
LED will glow when a channels cue mode is activated. The Cue function sends a channels incoming
signal to the headphones. The cue level is adjusted by the CUE LEVEL KNOB (6). Be sure the CUE
MIXING KNOB (7) is set to the "CUE" position to hear a selected channel source.
CHANNEL VOLUME FADER - These faders are used to control the output signal of any source
assigned to its particular channel. However, master volume is controlled by the MASTER VOLUME
CONTROL (3).
2. BOOTH LEVEL - This knob is used to adjusts the booth volume output level. Turn the knob in a
clockwise direction to increase the monitor volume.
3. MASTER VOLUME CONTROL - This knob is used to control the master output level (main volume).
To avoid distorted output try to maintain an average output signal level no greater than +4 dB. To
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CONTROLS AND FUNCTIONS cont.