Datasheet

Studio Technologies, Inc. Model 374A Intercom Beltpack, Issue 3, Page 4
Model 374A Specifications
Power Source:
Power-over-Ethernet (PoE): class 1 (very low power, ≤3.84 watts)
per IEEE® 802.3af
Network Audio Technology:
Type: Dante audio-over-Ethernet
AES67-2013 Support: yes
Dante Domain Manager (DDM) Support: yes
Bit Depth: up to 24
Sample Rate: 48 kHz
Number of Transmitter (Output) Channels: 4
Number of Receiver (Input) Channels: 4
Dante Audio Flows: 4; 2 transmitter, 2 receiver
Network Interface:
Type: 100BASE-TX, twisted-pair Ethernet, Power-over-Ethernet (PoE)
supported
Data Rate: 100 Mb/s (10 Mb/s and 1000 Mb/s “GigE” Ethernet not
supported)
Audio Channels: 4 talk, 4 listen
Microphone Input:
Compatibility: dynamic or electret (low-voltage DC-powered) micro
-
phones
Type: unbalanced
Electret Microphone Power: 5 volts DC via 2.21 k resistor, selectable
on/off
Gain: 22, 30, 42, or 48 dB, selectable, ref. –60 dBu input to Dante
output (–20 dBFS nominal)
Frequency Response: 50 Hz to 10 kHz, –3 dB
Distortion (THD+N): <0.02%
Dynamic Range: 75 dB
Call Function:
Receive Support: channels 1-4
Send Support: channels 1-3
Signaling Method: 20 kHz, ±800 Hz, within audio channels
Receive Level: –27 dBFS minimum
Send Level: –20 dBFS
Compressor:
Threshold: 1 dB above nominal level (–19 dBFS)
Slope: 2:1
Status LED: compressor active
Headphone Output:
Type: 2-channel
Compatibility: intended for connection to stereo (dual-channel)
or monaural (single-channel) headsets with nominal impedance of
50 ohms or greater
Maximum Output Voltage: 3.8 Vrms, 1 kHz, 150 ohm load
Frequency Response: 20 Hz to 10 kHz, –3 dB
Distortion (THD+N): <0.002%
Dynamic Range: >100 dB
Connectors:
Headset: 5-pin female XLR
Ethernet: Neutrik NE8FBH etherCON RJ45 receptacle
USB: type A receptacle (located inside Model 374A’s enclosure and
used only for application firmware updates)
Configuration: requires Studio Technologies STcontroller software
application, version 1.06.00 and later (STcontroller is compatible with
Windows version 7 and later)
Environmental:
Operating Temperature: 0 to 50 degrees C (32 to 122 degrees F)
Storage Temperature: –40 to 70 degrees C (–40 to 158 degrees F)
Humidity: 0 to 95%, non-condensing
Altitude: not characterized
Dimensions (Overall):
3.6 inches wide (9.2 cm)
1.6 inches high (4.0 cm)
4.8 inches deep (12.6 cm)
Mounting: intended for portable applications; contains integral belt
clip; optional MBK-01 Mounting Bracket Kit allows Model 374A to be
permanently mounted
Weight:
0.6 pounds (0.3 kg)
Specifications subject to change without notice.
Studio Technologies, Inc.
Skokie, Illinois USA
© by Studio Technolog
ies, Inc., July 2019
studio-tech.com