Model 5414 User Guide Issue 4, June 2020
Studio Technologies, Inc. Page 7
Model 5414
Mic/Line Input & Line Output
Dante Interface
Mic/Line Inputs
The Model 5414 provides four analog inputs
that are compatible with microphone and
line-level signals. The mic/line input circuitry
allows the level of the connected sources to
be boosted as required, converted to digital,
and then output to an Ethernet network by
way of Dante. Each mic/line input can be
individually adjusted to meet the require-
ments posed by a wide range of sources.
The choices can be selected either locally
or by way of the STcontroller remote control
software application.
Using two DIP switches, located on the unit’s
back panel, the relationship between the
analog input level and the digital audio out-
put level can be configured. Three choices
are available which allow compatibility with
SMPTE and EBU standards as well as an-
other commonly utilized setting.
The preamplifier gain of each channel can be
selected from among 20 values: 0 dB (line),
10 dB, and 19 through 70 dB in 3-dB steps.
A source of P48 phantom power can be
enabled to power condenser microphones.
In addition, a high-pass filter (HPF) function
can be enabled as required to reduce the
presence of unwanted low-frequency content
typically associated with hum, rumble, or
wind noise.
Compatible signal sources include dynamic,
ribbon, and phantom-powered condenser
(capacitor) microphones. The extended gain
range, up to 70 dB, allows microphones
with low-sensitivity to perform correctly. The
preamplifier gain settings of 0 dB and 10 dB
were specifically included to support con-
nection of balanced and unbalanced line-
level signals that are commonly provided by
professional and semi-professional audio
equipment. Typical nominal levels for these
sources would be +4 dBu and –10 dBV,
respectively. Devices providing these analog
signal sources could include audio con-
soles, wireless microphone receivers, and
broadcast playback equipment.
An 8-segment LED meter is associated with
each of the four mic/line input channels. The
meters are calibrated in dBFS which can as-
sist users in optimizing the preamplifier gain
settings so as to provide the best possible
conversion from the analog to the digital
domain. LEDs display the on/off status of
the P48 and high-pass filter (HPF) func-
tions. For front-panel space efficiency the
four mic/line input channels share a com-
mon configuration section which includes
a 2-digit LED display and four pushbutton
switches. The LED display allows the se-
lected preamplifier gain of the mic/line input
channels to be observed. The buttons allow
rapid selection of the preamplifier gain as
well as controlling the on/off status of the
P48 phantom power and high-pass filter
(HPF) functions.
The mic/line inputs are electronically bal-
anced (differential), capacitor-coupled, and
ESD (static) protected for reliable opera-
tion in a variety of demanding applications.
Extensive filtering minimizes the chance
that radio frequency (RF) energy will cause
interference. The inputs are protected from
damage should a moderate DC voltage be
accidentally connected. The sum of these
characteristics makes the mic/line inputs
suitable for use in studio and mobile facili-
ties as well as field-deployed environments.
The four 3-pin female XLR connectors asso-
ciated with the Model 5414’s mic/line inputs
were specifically located on the front panel.
This can eliminate the need for an external
I/O or “patch” panel, allowing signal sources
and their associated interconnecting cables
