Description
The Studio Technologies Model 381 On-Air Beltpack is a compact yet feature-rich solution designed for broadcast stand-up positions, live sports, eSports, and entertainment productions. Built on Dante audio-over-Ethernet technology, it offers professional-grade audio performance with main and talkback output channels, talent cue (IFB) input, sidetone capabilities, and highly flexible headphone monitoring. With AES67 compliance and Dante Domain Manager (DDM) compatibility, the Model 381 is extremely well suited to modern, networked broadcast environments.Dante Audio-over-Ethernet Technology The Model 381 seamlessly integrates into IP-based audio networks, replacing complex analog setups with a single Ethernet cable for both power and audio. With two Dante input channels for talent cueing and two Dante output channels for main and talkback audio, it ensures high-quality, low-latency digital audio transmission.Compact and Portable for On-Air Use Designed for stand-up broadcast positions, the ultracompact and lightweight Model 381 can be easily worn on a belt or placed on a desk. The curved top surface minimizes interference with clothing, ensuring a discreet, professional look when used on camera.One Main and One Talkback Output Channel The Model 381 supports two independent Dante output channels:Main Output (On-Air): Delivers high-fidelity, broadcast-ready audio directly to networked devices.Talkback Output: Enables private communication with production staff or other talent, with configurable routing via Dante Controller.A top-panel pushbutton switch provides a combination talkback and "cough" function, allowing talent to communicate off-air or mute their mic as needed. Users can configure whether the main output remains active when talkback is engaged.2-Channel Headphone Output with Independent Volume Controls The flexible headphone output ensures customized monitoring, supporting:Stereo headphonesSingle-ear earpiecesBroadcast headsetsTwo independent volume knobs allow users to adjust the mix of two Dante input channels for talent cueing (IFB), ensuring the right balance of program audio and producer communication.Integrated Sidetone Functionality For talent using mix-minus IFB feeds, the Model 381 provides a built-in sidetone feature, allowing users to hear their own voice in their headphones. This ensures natural-sounding monitoring and prevents overcompensation in vocal delivery.Professional-Quality Audio Performance Low-noise microphone preamp with configurable gain settingsPhantom power (48V) support for condenser microphonesIntegrated compressor for dynamic control (pre- or post-processing selection available)24-bit digital audio processing with sample rates up to 96 kHzVirtually click-free digital switching for audio routingSTcontroller Software for Flexible Configuration Using the free STcontroller software, users can fully customize the Model 381's settings, including:Microphone preamp gain (five selectable levels)Phantom power on/offHeadphone mix routingSidetone operationTalkback button behaviorPower-over-Ethernet (PoE) for a Single-Cable Solution The Model 381 is powered via PoE, eliminating the need for external power supplies. Simply connect to a PoE-enabled network switch or PoE injector for both power and digital audio transmission.Rugged and Reliable Construction Built for professional use, the Model 381 features a lightweight yet durable aluminum enclosure and a stainless steel belt clip for secure attachment. The Neutrik etherCON RJ45 connector ensures a rugged, locking Ethernet connection, ideal for demanding broadcast environments.Future-Proof with Firmware Updates The USB firmware update feature allows users to upgrade functionality as needed, ensuring the Model 381 remains compatible with evolving Dante networks.