Shure P3R-K3e

A Shure monitoring solution designed to transition from rehearsal room to stage

The Shure PSM300 fits within the logic of modern in-ear monitoring systems: to provide precise, stable, and comfortable listening while remaining quick to set up during soundchecks. It positions itself as a particularly relevant solution for bands wishing to move from traditional stage monitors (wedges) to in-ear monitoring without complicating the stage setup. Thanks to an efficiency-oriented design (scanner, IR sync, accessible settings), it meets the demands of live performances and back-to-back gigs where RF reliability and sound clarity are paramount.

Who is the PSM300 for, and in what applications does it make a difference?

The PSM300 is intended for musicians, singers, technicians, and sound reinforcement teams who want a consistent and controlled wireless stereo monitor. It is suitable for club bands, event teams, houses of worship, community stages, or corporate events. In in-ear monitoring, the goal is clear: gain precision (vocals, click track, instruments), reduce stage volume, and better control pitch, timing, and listening fatigue over the course of a set.
Its operation in mono, stereo, or MixMode allows adapting the monitor mix to your method: a full stereo mix for a natural image, a simple and effective mono mix, or a practical MixMode setting to manage the balance between two sources (for example vocals and instruments) from the bodypack, depending on your console and auxiliary setup.

Audio technology, radio, and ergonomics: essentials without complication

Defined and natural sound with wide dynamics

The PSM300 relies on 24-bit hybrid digital FM technology to deliver detailed reproduction with comfortable dynamics and a musical rendering. The Shure Audio Reference Companding helps preserve warm and defined sound while maintaining very low background noise and limiting artifacts: a crucial point for vocals, playing nuances, and stage cues (click, sequences, backing vocals).

Robust RF and quick startup

In the field, deployment speed is as important as audio quality. The system includes a frequency scanner to identify a free frequency, then an IR sync to assign it to the receiver in seconds. The 24 MHz RF bandwidth facilitates coordination within the same band, with up to 15 systems usable simultaneously per band, depending on your environment.

Two receiver options according to your needs

The PSM300 is offered with the P3R receiver, ultra-lightweight, made of ABS, equipped with a quarter-wave antenna, for direct and efficient use. There is also a metal housing receiver option P3RA, aimed at more advanced uses, featuring an LCD display and the possibility to be powered by a Lithium-Ion SB900 battery (optional), convenient when looking for a rechargeable solution and more detailed settings monitoring.

Technical specifications

Frequency response - start	38 Hz	Inputs	jack, minijack
Frequency response - end	15 kHz	Indicative range	90 m
Category	receiver	Color	Black
Battery life	7 HOUR	Power supply	2 x AA batteries
Compatibility	PSM300	Weight	98 g
Frequency scanner	Yes	Dimensions (mm)	110 x 64 x 21

Technology	24-bit hybrid digital FM	Audio processing	24-bit with FPGA
RF bandwidth	24 MHz	Modes	mono, stereo, and MixMode
Transmission power	30 mW	Headphone amplifier power	80 mW
Synchronization	IR	Type	ultra-lightweight PSM300 receiver in ABS
Available bands	H8E (518-542 MHz), K3E (606-630 MHz), L19 (630-654 MHz)	Antenna	quarter-wave
Shure Audio Reference Companding	yes	P3R receiver autonomy	5 to 7 hours
Audio frequency response	38 Hz to 15 kHz	Levels	+4 dBu, -10 dBV