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4.3.6 Ready/Standby Control
Each channel's output relay can be
independently turned on and off.
4.3.7 Signal Mute
The output signal of each channel
can be independently muted. This
function typically provides 80 dB or
more of attenuation.
4.3.8 Polarity Inverter
The polarity of the input signal of
each channel can be independently
inverted.
4.3.9 Input Signal Attenuator
An attenuator at the input of each
channel is used to control the input
signal level. Each attenuator has a
range from 0 dB to –80 dB in ½ dB
steps. (Zero equals no attenuation.)
4.3.10 "Ghost Faders"
These indicators let you monitor the
signal path gain where it may differ
from manual gain set on input at-
tenuation and output trim as the re-
sult of limiting or compression. They
appear as flying faders "behind" the
input attenuators.
4.3.11 Amp Information
Several useful items of information
about the host amplifier are deter-
mined by the IQ-MC at start-up.
These include manufacturer, model,
date code, serial number, and revi-
sion level. These can be printed
from the system inventory (no on-
screen display is available).
4.3.12 Amp Mode
The IQ-MC module screen can show:
• The position of the Dual/Bridge
mode switches
• The position of the back-panel
attenuators
Page 14
However, the Dual/Bridge mode of
the amplifier cannot be controlled
via software.
4.3.13 Error Reporting
The IQ-MC module can report six
types of errors: Clip, Thermal, Fault,
Load, Dual/Bridge-mode switch set-
ting has been changed, Volume at-
tenuator setting has been changed.
You can route error reports for each
condition above to:
• Windows IQ software (system
software).
• AUX OUT.
• Both software and AUX OUT.
If you choose system software noti-
fication, the IQ System will notify you
of the error. If you choose AUX OUT
notification, the AUX OUT signal will
switch from OFF to ON when a se-
lected error has occurred. If you
prefer, error reporting can be
switched off. Following is a descrip-
tion of each error condition:
Clip: You can choose to be informed
when an excessive number of Clip
events occur over a unit of time in
either channel of the amplifier. When
Clip error reporting is on, an alert will
be generated when the number of
Clip events per unit of time specified
exceeds a count that you set. The
Count control lets you set a number
of Clip events per unit of time al-
lowed before an error is generated.
The range is 1 to 100. The Time
control lets you set the unit of time in
seconds during which the number
of Clip error events are counted for
possible error reporting. The range
is 1 to 10 seconds.
IQ-MC Modules
Reference Manual
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