The Shure Wired TwinPlex Microphone Preamp is a compact, belt-worn interface unit that bridges the ultra-small TwinPlex lavalier microphone system to standard professional audio equipment. This preamplifier takes the low-level signal from a TwinPlex microphone (connected via its proprietary TA4F locking connector), applies clean gain, and provides phantom power to the microphone capsule. It outputs a balanced, line-level signal via a standard 3-pin XLR connector, allowing direct connection to mixers, recorders, camera inputs, or wireless transmitter inputs that require a higher-level signal. The unit is designed for situations where the discretion and sonic quality of a TwinPlex lavalier are required, but a direct wired connection is preferred over wireless transmission.

Housed in a durable plastic casing with a sturdy belt clip, the preamp is built for reliability in field production, broadcast, and theatrical applications. It features simple, user-friendly controls, typically including a gain adjustment knob and a power switch or indicator. By providing the necessary power and signal conditioning at the body, it allows the tiny TwinPlex microphone to perform at its full potential, delivering its renowned clear, natural sound with a very low noise floor. This setup is ideal for ENG crews, documentary filmmakers, and theater sound designers who need the ultimate in concealment and audio quality without the complexity or potential interference of a wireless link.

The wired preamp offers a supremely reliable and high-fidelity connection, as it is immune to the RF challenges that can plague wireless systems. It ensures perfect audio synchronization without latency and eliminates concerns about battery life in the microphone itself. For any application where a discreet lavalier microphone must be connected via a cable, the TwinPlex Wired Preamp provides the essential link, marrying the miniature form factor of the TwinPlex with the robust connectivity and proven reliability of a professional wired audio chain.