46/50 Integrated Mixer Amplifier
Setup And Installation Guide
CLOUD ELECTRONICS LIMITED
6.2 Connecting Multiple PM4s to a 46/50
Multiple PM4 microphones can be connected to the 46/50 by wiring them either in parallel with
their analogue interface or daisy chaining the digital interface. See the “
PM4/8/12/16
Installation and User Guide
”, page 27, “
Systems with multiple paging microphones
” for
more details. If wiring using the analogue interface note that the 46/50 can only supply enough
power for one paging microphone, any additional PM4 mics will require their own external power
supply (CPM-PSU) and should not have their +V termination wired back to the 46/50. See
section 10 for details of current availibility and consumption.
6.3 Microphone Gain Control
Pre-set gain controls are provided adjacent to the respective microphone input. The gain can be
adjusted from 10dB to 50dB. A high overload margin is maintained at all gain settings.
6.4 Microphone Equalisation
Two-band equalisation is provided for both Mic 1 and Mic 2. The pre-set controls to adjust the
equalisation are located to the right of each rear panel microphone connector. The
characteristics of the equalisation are optimised for the tonal correction of speech signals. The
HF control provides ±10dB at 5kHz whilst the LF control provides ±10dB at 100Hz.
6.5 High Pass Filter
Both microphone channels pass through independent high pass filters operating at 100Hz that
provide effective attenuation of breath blasts and LF handling noises. The circuitry providing this
feature is fixed and cannot be defeated.
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Summary of Contents for 46 INTEGRATED
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