5.Connecting the Audio Output
The URR-10 receiver provides both a fixed mic level BALANCED AUDIO OUTPUT XLR (14) and an adjustable line level UNBALANCED AUDIO OUTPUT 1/4" JACK (13). The level from the UNBALANCED OUTPUT is controlled by the front panel VOLUME CONTROL (6) and the rear panel LEVEL LOW/HI SWITCH (12). This switch adjusts the maximum volume of the level range controlled by the VOLUME CONTROL. In the “LOW” position, the level of the signal from the UNBALANCED OUTPUT, with the VOLUME CONTROL set to “10”, is about 10% of the maximum volume available with the “HI” position. Proper use of the LOW/HI SWITCH enables better control of the UNBALANCED OUTPUT volume.
(Note: As when making any connection, make sure the amplifier or mixing board volume is at the minimum level before plugging in the receiver to avoid possible sound system damage.)
Instrument Connection (using the UB-10 in the “instrument” setting)
Insert an audio cord with a 1/4" mono phone plug in the UNBALANCED OUTPUT JACK (13) on the rear panel of the receiver. Plug the other end of the cord into an amplifier, effects, or mixing board. With the LEVEL LOW/HI SWITCH (12) set to HI, adjust the VOLUME CONTROL (6) on the URR-10 receiver clockwise to about 3/4 rotation, until the volume level is comfortable for your application. This setting is roughly equivalent to a direct instrument cord connection. Turning the volume up to “10” will provide 4dB gain over a cord.
Microphone Connection (using the UB-10 transmitter with either a headworn or lavalier microphone or the UH-10 handheld microphone transmitter)
For microphone use, either the BALANCED MIC AUDIO OUTPUT XLR (14) or the 1/4" line level UNBALANCED OUTPUT (13) can be used. The XLR output is set at a non-adjustable microphone level, similar to hardwired mic levels. Plug an XLR connector into the XLR output jack on the rear of the unit and plug the other end into your amplifier or mixing board. Make sure the phantom power on your mixing board is turned off and the volume is turned down when making connec- tions. For your convenience, the XLR output level is preset at the factory and is not adjustable with the receiver volume control.
To use the 1/4" UNBALANCED OUTPUT JACK (13), follow the instructions for the Instrument Connection (above), except start with the LEVEL LOW/HI SWITCH set to LOW and the receiver volume at 1/2 MAX and adjust both the switch and the volume control until the volume level is optimal. If the volume control is set too high, you may overload your mixer or amp.
The URR-10 receiver is equipped with an AF LEVEL LED DISPLAY (5) which indicates the level of the received audio from the transmitter. There are 4 green and 1 red LED in this display and in normal operation they will go on and off with the changing signal level. If the top (red) LED stays on continuously, decrease the volume to the transmitter or overload distortion may result.
For optimum performance, an INPUT LEVEL CONTROL (32) is provided. Adjust the gain by turning the control with your thumb. For lavalier mic use, it is recom mended that the level be set at about 2/3 maximum. For headworn mic use, it may be advisable to turn the gain down somewhat, depending on the volume levels expected. In either application, experiment and set for maximum possible gain without audible distortion on the high level peaks. (Note: Turning down the gain too much can compromise the signal-to-noise and is not recommended.)
The AF LEVEL DISPLAY (5) on the URR-10 receiver will light up to 5 LED indicators for all input signals. Occasional flickering on and off during use of the top red LED is normal, but if the red LED stays lit continuously, turn down the INPUT LEVEL CONTROL (33) on the UB-10 transmitter or noticeable distortion may result.
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