Mode 2…Priority
In this mode, only one mic at a time can be “on.” The lockout bus shuts down all other mics until the first speaker pauses. As soon as the controlling microphone goes silent, the lockout bus goes inactive and any other mic can come on. This switching takes place without any
This mode is very useful when the gain setting of the overall sound system must be close to the threshold of feedback, and additional microphones coming on could throw the system into feedback. The SmartMixer will not allow multiple microphones to be on at the same time in this mode. The switching is so fast and silent that the meeting can still be completely interactive.
Mode 3…One Priority
The selected priority microphone can come on at any time and can mute any other mic that is on (popularly called “The Chairperson” mode).
(Note that there may be special circumstances where two or three mics could be set to priority, so those speakers could talk whenever desired, but still mute one or two
If multiple SmartMixers are used with AT8325/1.0 Link Cables, Priority
The selected priority microphone(s) will mute only those
NOMA
The NOMA is factory set in the “off ” position. To turn on the NOMA function, unplug the unit, remove the top cover and change the setting of the switch designated on the circuit board by “SW25” (Figs. 4 and 5, page 11).
NOMA serves to maintain overall system gain by proportionately reducing amplifier gain as the number of open microphones increases. In a sound reinforcement system, this can tend to preserve the feedback margin and system stability. However, this action necessarily reduces the sound level of each individual person speaking, which may not be desired. In the end, use of NOMA often comes down to the preferences of the system’s designer and/or operator.
Generally speaking, use of NOMA is not desirable in applications such as teleconferencing, recording or broadcasting.
Auxiliary Input
The Aux input is an RCA jack accepting
Preamplifier Gain
The SmartMixer has a substantial gain range, allowing it to accept a wide variety of micro- phones. However, if in some instances
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