Studio Technologies M380, Руководство пользователя

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Model 380 User Guide Issue 1, September 2016
Studio Technologies, Inc. Page 13
The compressor active LED, visible on
the bottom of the Model 380’s enclosure
adjacent to the headset connector, can act
as a guide when setting the preamp gain.
During normal talk operation the compres-
sor active LED should light intermittently.
If, for example, it rarely lights and the gain
is set to 43 dB, it might be a good idea to
change to setting to 52 dB. If the LED is
lit fully during normal talking and the gain
is set for 52 or 59 dB, changing it to one
of the lower values might be warranted.
There’s no “hard and fast” rule about
which gain setting is appropriate. But
unless otherwise indicated, 43 dB is
typically a good initial choice.
Headphone Output Mode
Switch SW3 is used to configure how the
audio signals are routed to the 2-channel
headphone output. In the dual-channel
mode channel 1 of the Dante audio input
is routed to the left channel of the head-
phone output. Channel 2 of the Dante
audio input is routed to the right channel
of the headphone output. And sidetone,
if enabled, is sent to both the left and
right headphone output channels. In the
monaural mode Dante channels 1 and
2 and sidetone audio are combined and
sent to the left headphone output channel;
no signal is sent to the right headphone
output. This mode is specifically provided
when a 2-conductor ¼-inch plug is insert-
ed into the Model 380’s headphone output
connector. This prevents potential stress
on the right channel headphone output
circuit when it is presented with a short
circuit condition.
Talkback Button Mode
Switch SW4 is used to configure the
talkback button mode to be either mo-
mentary or latching. In the momentary
mode the Dante main output channel and
microphone output will be active and the
button’s green LED will be lit. When the
button is pressed and held the LED will
turn orange, the Dante main output chan-
nel and microphone output will mute, and
the Dante talkback output channel will be-
come active. When the button is released
the function will return to the original state.
When selected for the latching mode tap-
ping (momentarily pressing) the button
will cause the function to change states,
moving between the Dante main output
channel and microphone output being
active and the Dante talkback output
channel being active.
Figure 4. Talkback button mode configuration
switch
Figure 3. Headphone output mode configuration
switch