Datasheet

Model 391 Specifications
Power Source:
Power-over-Ethernet (PoE): class 1 (very low power, ≤3.84
watts)
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 Receiver (Audio Input) Channels: 2
Dante Audio Flows: 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)
Call Activation:
Method: in-band tone, receiver channel 1, receiver channel 2,
or receiver channel 1 and 2, selectable
Tone Characteristics: 18-23 kHz, nominal
Minimum Level: –25 dBFS, nominal
Detect Time: 10 milliseconds, minimum
Visual Alert:
Type: qty 5, red/green/blue (RGB) LEDs
Color: adjustable, 20 standard colors and Windows® color picker
Intensity: adjustable
Action: adjustable
Audio Alert:
Type: electromagnetic sounder
Action: adjustable
Frequency: 2.7 kHz, nominal, square wave
Level: adjustable, 2 level ranges
Maximum Level: 85 dB SPL @ 3.9 inches (10 cm)
Action: adjustable
Line Output:
Type: analog, electronically balanced, capacitor coupled, intend-
ed to drive balanced or unbalanced loads of 2 k ohms or greater
Source Impedance: 200 ohms
Nominal Level: 0 dBu, reference –20 dBFS
Maximum Level: +20 dBu, 0 dBFS input, measured at 1 kHz
Dynamic Range: >106 dB, A-weighted
Distortion (THDS+N): 0.0011% (–99 dB), measured at –1 dBFS,
22 kHz bandwidth
Frequency Response: +0/–1.5 dB, 20 Hz to 20 kHz
Connectors:
Line Output: 3-pin male XLR
Ethernet: Neutrik etherCON RJ45
USB: type A receptacle (located inside Model 391’s enclosure
and used only for updating firmware)
Configuration: requires Studio Technologies’ STcontroller
personal computer application, version 1.07.00 and later
(STcontroller compatible with Windows version 7 and later)
Dimensions (Overall):
3.4 inches wide (8.6 cm)
3.5 inches high (8.9 cm)
5.1 inches deep (13.0 cm)
Mounting: intended for tabletop applications; optional
MBK-01 Mounting Bracket Kit allows Model 391 to be
permanently mounted
Weight: 1.0 pound (0.46 kg)
Specifications subject to change without notice.
Studio Technologies, Inc.
Skokie, Illinois USA
© by Studio Technolog
ies, Inc., March 2020
studio-tech.com
Studio Technologies, Inc. Model 391 Dante Alerting Unit, Issue 3, Page 4