The Studio Technologies Model 22 IFB Plus Series Access Station is a sophisticated professional audio interface designed to streamline complex communication workflows in broadcast, live production, and corporate AV environments. It serves as a central hub for integrating talent interruptible foldback (IFB) systems, two-way communication, and program audio distribution. The unit combines a compact, rack-mountable mainframe with a remote user panel, offering producers, directors, and stage managers unparalleled control over who hears what. Its core function is to manage multiple audio feeds—including program, producer talkback, and auxiliary sources—and deliver clean, discrete mixes to talent via their IFB earpieces, while simultaneously facilitating clear, hands-free communication between the booth and the field.

At the heart of the system is the remote panel, which provides intuitive, tactile control over two independent IFB channels. This allows an operator to individually adjust the mix of program audio and communications for two separate talent or locations, often featuring a prominent "cue" or "all call" button for urgent announcements that override the standard feed. The main access station handles the audio routing, level matching, and impedance bridging, ensuring broadcast-quality audio with minimal noise and distortion. It typically accepts a variety of input types, from microphone-level talkback mics to line-level program feeds, and provides both balanced and unbalanced outputs to connect to IFB transmitters, intercom systems, or recording devices.

This system is engineered for reliability and clarity under pressure, making it a staple in outside broadcast trucks, control rooms, and studio facilities. The dual-channel design allows one operator to manage communications with an on-air host and a remote guest simultaneously, each with a customized audio mix in their ear. The robust construction and thoughtful ergonomics of the remote panel ensure it can withstand the demands of fast-paced live television or event production. By solving critical audio isolation and communication challenges, the Model 22 enhances operational efficiency, reduces on-air confusion, and provides the precise control necessary for seamless, professional productions where clear communication is non-negotiable.