Owner's Manual

Table Of Contents
Shure Incorporated
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Manual Selection
If frequencies have been planned ahead of time, the group and channel can be set manually without performing a scan. Refer
to the frequency table at the end of this user guide to identify frequencies for each group/channel setting.
To select group/channel settings on the receiver and transmitter:
Press GROUP to scroll through group settings.
Press CHANNEL to scroll through channel settings within the selected group.
Adjusting Gain and Listening Volume
For the best audio quality, start by adjusting the levels from the mixer or audio source, and then adjust levels through the
PSM300 system. This approach corresponds to the way that the audio signal flows through the system, and maximizes the sig
nal-to-noise ratio.
Before you begin: verify all signal routing and gain settings at the mixer or source prior to adjusting any levels from the
PSM300 system. If the sound is distorted or faint when it enters the P3T transmitter, there is likely an issue elsewhere in the
signal chain that needs to be resolved.
Adjust Transmitter Levels:
Input Sensitivity
Select the setting that matches the input source:
Line (+4 dBu) Use with mixers or other professional audio devices that send line-level signals.
Aux (-10 dBV) Use when connecting consumer audio devices such as portable audio players or computers.
Note: When using consumer audio devices, the output volume of the device should typically be adjusted as close to the maximum setting as possible without
distorting or clipping at the output of the device. This maximizes the signal-to-noise ratio.
Input Level
Adjust the level so that average levels on the audio meter reach approximately 75% of the full range. The highest levels
should occasionally hit the 0dB indicator on the audio input meter, without reaching the OL (overload) indicator.
Tip: If a sound check before the performance is possible, everyone should play at the loudest anticipated volume so that attenuation is not required during the
performance.