Model 34 Talent Amplifier User Guide Issue 1, August 2005 This User Guide is applicable for serial numbers: M34-00151 and later Copyright © 2005 by Studio Technologies, Inc., all rights reserved www.studio-tech.
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Model 34 Talent Amplifier Introduction The Model 34 Talent Amplifier is a selfcontained listen-only “belt pack” unit that drives talent earpieces or headsets. The unit is powered by, and receives audio from, single- or dual-channel broadcaststandard IFB or party-line intercom circuits. A 3-conductor microphone-type cable links the IFB or intercom circuit with the Model 34’s input. The unit’s resources were selected so that a range of single- and dual-channel applications can be supported.
Model 34 Talent Amplifier a factor in IFB or intercom systems, the Model 34 is built to “pro audio” standards. This helps to ensure that the best possible audio reproduction is provided. The Model 34 is compatible with virtually every standard broadcast IFB and partyline intercom circuit. This type of circuit typically uses 3-pin XLR-type connectors for interfacing with connected equipment. XLR pin 1 serves as common for DC power and audio.
Model 34 Talent Amplifier The level control labeled CH1/LEFT adjusts the output level of the signal associated with pin 2 of the connected IFB or intercom circuit. In television sports broadcasting applications this is often called the “interrupt” channel but actually consists of program audio that is interrupted with talkback audio. In live radio applications the user cue signal might be stereo, with the left channel normally carried on pin 2.
Model 34 Talent Amplifier There may be cases where only one audio source is provided by an IFB circuit. Depending on the type of IFB equipment supplying the circuit, the signal will either be on pin 2 or pin 3 of the associated XLR-type connector. In general, when a single audio source is present a monaural headset or earpiece will be connected. These user devices will typically employ a monaural (2-conductor) ¼-inch or 3.5 mm plug.
Model 34 Talent Amplifier Specifications Applications: listen-only portable user station compatible with standard single- and dual-channel broadcast IFB and party-line intercom circuits Connectors: IFB/Intercom Input: 3-pin female XLR-type Headphone/Earpiece Output: ¼-inch and 3.