Manual

Issue 5, December 2018 Model 214 User Guide
Page 14 Studio Technologies, Inc.
To prevent unauthorized personnel from
changing the configuration settings, a
security panel is attached to the bottom
of the Model 214’s enclosure. For conve-
nience, the security panel provides a sum-
mary of the configurable parameters and
related information. Refer to Appendix A
for a representative view. The security pan-
el is held in place by means of four rubber
bumpers (“feet”) that have built-in screws.
Using your fingers, remove the four bum-
pers so that the panel can be removed.
Refer to Figure 2 for a detailed view of the
configuration switch assemblies.
Headphone Output Gain
Range, Mic Preamp Gain,
and P48 Phantom P
ower
On the unit, two pushbutton switches,
located on the bottom of the Model 214, can
be used to set the headphone output gain
range. They can also be used to select the
gain of the microphone preamplifier and
the on/off status of the P48 phantom power
source. A 2-digit LED display provides a
status indication of all these functions.
As previously mentioned, the ST
controller
software application can also be used to
view and revise the gain of the microphone
preamplifier
, the on/off status of the P48
phantom power source, and the headphone
output gain range.
Selecting the Headphone Output Gain
Range
Upon application of Model 214 power
the 2-digit display, as part of its power-up
sequence, will first display the firmware
version and then the current setting of the
headphone output gain range. The setting
will be either low or high. During the brief
interval when the headphone gain range
is displayed the two pushbuttons can be
used to change the setting.
Local Selection of Mic Preamp Gain
The two pushbutton switches can be used
to select the gain of the microphone pre-
amplifier. The range is 19 to 64 dB in 3-dB
steps. There’s no problem changing the
gain setting while the unit is operating.
Small audio clicks or pops might occur dur-
ing gain transitions, but this shouldn’t be a
major issue as long as associated monitor
loudspeakers are temporarily attenuated or
muted. As expected, the 2-digit LED display
will directly indicate, in dB, the selected
amount of gain.
Figure 2. Bottom view of Model 214 showing
configuration switches and 2-digit display