RTS IFB-1000 1-Channel Listen-Only IFB Beltpack / 1/4in TS Headphone / 3-Pin XLR Line Input

Description

The IFB-1000 is a monaural, single-channel listen-only intercom beltpack designed to provide clear and reliable monitoring for production crews and broadcast operators. It receives audio and power from a connected party line and delivers a focused audio feed to a single earset or headphone. The compact metal housing and low-profile footprint make it convenient for on-body use while maintaining durability.

Key features include a recessed volume control for tamper-resistant level adjustments and a green Channel-On LED that confirms when the unit is powered. The unit uses a standard 3-pin XLR female input for party line connection and a 1/4in TS phone jack for earphones or earsets. The audio receive circuit is engineered for clear monaural monitoring on a single channel.

Technically, the IFB-1000 is optimized for earsets with impedances between 150 and 600 Ohms, while the balanced channel impedance is specified at 600 Ohms. It requires a nominal 24VDC supply drawn from the intercom party line and typically consumes between 50 and 80mA. The rugged metal enclosure and compact dimensions support repeated field use.

Connectivity is straightforward and industry-standard: a 3-pin XLR female input connects to a party line and a 1/4in TS phone jack accepts common earsets or headphones. The unit is Clear-Com compatible and draws all necessary power from the connected intercom channel, eliminating the need for an external battery. The beltpack includes a secure clip to attach to clothing or a belt during operations.

Typical use cases include broadcast production, ENG/EFP crews, stage management, and event production where a single-channel listen-only monitor is required. The IFB-1000 is suitable for talent cueing, director and stagehand communications, and any application that requires a discrete receive-only audio feed. Its compatibility with standard party line systems makes it easy to integrate into existing intercom infrastructures.

Installation is simple and tool-free: connect the 3-pin XLR to the party line and plug an earset into the 1/4in jack, then clip the unit to a belt. The recessed volume control prevents accidental changes while the metal case protects the electronics from impact. Overall, the IFB-1000 combines straightforward operation, Clear-Com compatibility, and reliable build quality for professional monitoring needs.