User manual

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Audio Input and Output Modules
The CAB 4n includes functionality that supports modular input and output architecture. This
architecture provides the ability to configure the CAB 4n inputs and outputs for a variety of
functions. Four internal 4-channel modular bays provide connection to factory installed
input/output modules. A combination total of four modules can be installed at the factory on the
CAB 4n. Which modules are installed is up to you!
NOTE: A CAB 4n may be ordered short loaded.
At press time, the following modules are available for the CAB 4n.
MM-Line 4
The MM-Line 4 input card includes four line level inputs. Up to 4 numbers of
such cards can be installed into the 4 available card slot bays A, B, C and/or D
within a CAB 4n. The MM-Line 4 includes full software control of input
sensitivity, user selectable per Ch. 12, 18, 24, 30 dB and analog gain from -95 to
+30dB per Ch..
MM-Mic 4
The MM-Mic 4 input card includes four mic or line level inputs. Up to 4 numbers
of such cards can be installed into the 4 available card slot bays A, B, C and/or D
within a CAB 4n. The MM-Mic 4 features studio grade microphone
preamplifiers, complete with software controllable phantom power and gain
controls for each channel up to +60 dB.
MM-AEC4
The MM-AEC4 includes 4 microphone level inputs with Acoustic Echo
Cancellation and Noise Reduction circuitry built-in. The MM-AEC4 is perfect
for teleconferencing applications or anytime you need high quality Acoustics
Echo Cancellation functionality.
The MM-AEC4 also features studio grade microphone preamplifiers, complete
with software controllable phantom power and gain controls for each channel
from -65 up to +20 dB. User selectable coarse gain control at 0, 25 & 55 dB
settings plus AEC level adjustable presets (none, soft, medium & aggressive) and
Noise Reduction filter per Ch. selectable at .-6, -9, -12 dB.
NOTE: Requires one input module bay and at least one output for Echo
Cancellation Reference
MM- Out 4
The MM- Out 4 output card includes four line level outputs. Up to 4 numbers of
such cards can be installed into the 4 available card slot bays A, B, C and/or D
within a CAB 4n. The MM-Out 4 includes full software control of output
sensitivity, user selectable per Ch. 6, 12, 18, 24 dB, and gain control from -95 to
+ 30dB per Ch.
With these modules, the CAB 4n can be configured in a variety of different ways. By making the
four (4) available card slot bays flexible to accept either input or output modular cards, the CAB
4n provides even greater flexibility and makes for much more cost-effective system design.