Manual

Issue 5, November 2017 Model 216 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 216’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 Power
On the unit, two pushbutton switches,
located on the bottom of the Model 216,
are used to set the headphone 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 STcontroller
software application can be used to view
and revise the gain of the microphone pre-
amplifier and the on/off status of the P48
phantom power source.
Selecting the Headphone Output Gain
Range
Upon application of Model 216 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
preamplifier. 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
during gain transitions, but this shouldn’t
be a major issue as long as associated
monitor loudspeakers are temporarily at-
tenuated or muted. As expected, the
2-digit LED display will directly indicate,
in dB, the selected amount of gain.
1 2 3
4
5
6
7
8
9 10 11
12
ON
Configuration
DIP Switches
Pushbutton
switches select
Headphone Output Gain Range,
Microphone Preamp Gain, and
P48 Power On/Off
Status
2-digit display indicates
Headphon
e Output Gain Range,
Microphon
e Preamp Gain, and
P48 Power On/Off Status
Figure 2. Bottom view of Model 216 showing
configuration switches and 2-digit display