Studio Technologies MODEL-381 ON-AIR BELTPACK

The Model 381 On-Air Beltpack offers a unique combination of audio resources to directly support a complete broadcast "stand-up" on-air position.

Using Dante® audio-over-Ethernet technology, the unit provides main and talkback output channels, talent cue (IFB) input, and sidetone capabilities, as well as essential user controls in a compact, portable package.

The Model 381 is compatible with the Dante Domain Manager™ (DDM) software application and is AES67-compliant for direct integration into many contemporary networked audio applications.

Studio Technologies MODEL-381 Features:

• Dante audio-over-Ethernet technology
• Creates complete "stand-up" on-air position
• One main and one talkback output channel
• Highly-flexible 2-channel headphone output
• Integrated sidetone function
• Excellent audio quality
• Uses STcontroller for configuration
• Power-over-Ethernet (PoE) powered

Studio Technologies MODEL-381 Specifications:

• Power Source:
  • Power-over-Ethernet (PoE): class 2 (low power, ≤6.49 watts) per IEEE® 802.3af
• Network Audio Technology:
  • Type: Dante audio-over-Ethernet
  • AES67-2018 Support: yes
  • Dante Domain Manager (DDM) Support: yes
  • Bit Depth: up to 24
  • Sample Rate: 44.1,48, 88.2, and 96 kHz
  • Number of Transmitter (Output) Channels: 2
  • Description of Transmitter Channels: main (pre- or post-compressor, selectable), talkback (post-compressor)
  • Number of Receiver (Input) Channels: 2
  • Description of Receiver Channels: headphone channel 1 and headphone channel 2
  • 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 10000 Mb/s GigE Ethernet not supported)
• Microphone Input:
  • Compatibility: dynamic or phantom-powered microphones
  • Type: balanced, capacitive coupled
  • Impedance: 2.8 k ohms, nominal
  • Gain: 36, 42, 48, 54, and 60 dB, selectable
  • Frequency Response: 30 Hz to 20 kHz, –3 dB at 30 Hz, –0.6 dB at 20 kHz
  • Distortion (THD+N):
  • Dynamic Range: 96 dB, A-weighted
  • Phantom Power: P48 per IEC 61938 standard, on/off selectable with status LED
• Compressor:
  • Application: always used for Dante talkback audio output channel, can be used for Dante main output channel
  • 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 mono (single-channel) headphones, headsets or earpieces with nominal impedance of 50 ohms or greater
  • Maximum Output Voltage: 3.1 Vrms, 1 kHz, 150-ohm load
  • Frequency Response: 20 Hz to 20 kHz, +0/–1 dB
  • Distortion (THD+N): 0.001%, +10 dBu output, 150-ohm load
  • Dynamic Range: >102 dB
• Connectors:
  • Microphone Input: 3-pin female XLR
  • Headphone Output: ¼-inch 3-conductor jack
  • Ethernet: Neutrik etherCON RJ45
  • USB: type A receptacle (located inside Model 381's enclosure and used only for updating firmware)
• Configuration:
  • Uses Studio Technologies' STcontroller personal computer application
• 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):
  • 3.1 inches wide (7.9 cm)
  • 1.5 inches high (4.0 cm) w/out belt clip; 1.8 inches (4.6 cm) with belt clip
  • 4.9 inches deep (12.5 cm)
• Deployment:
  • Intended for portable applications; contains integral belt clip
• Weight: 0.5 pounds (0.23 kg)