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Shure

Shure P3TRA215CL-H20 PSM 300 Wireless In-Ear Monitor System

★★★★★5.0 (3 reviews)

Studio-grade wireless monitoring with 24-bit clarity and 90dB SNR — the PSM 300 puts your mix exactly where it needs to be: in your ears.

$989.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Shure PSM 300 is built for the performer who demands a monitor mix that sounds like the room, not like a transmission artifact. Its 24-bit digital audio path and 90dB signal-to-noise ratio put it firmly in professional touring territory — this is the system you reach for when an in-ear mix needs to carry a vocalist through a two-hour set without the noise floor rising or the stereo image collapsing. Audio Reference Companding, Shure's proprietary encode-decode process, is the reason the PSM 300 sounds notably cleaner than lesser wireless IEM systems at equivalent gain: transients stay sharp, low-level detail survives the RF path, and the wide stereo separation means a well-built monitor mix reads with genuine spatial clarity rather than a smeared mono-wide approximation.

The P3T transmitter is half-rack and ships with a rackmount kit, so it drops into a standard touring rack without adapters or improvisation. The ¼-inch input handles any console aux send directly, and the BNC antenna connections accommodate remote antenna mounting for consistent coverage across a 300-foot stage. The P3RA bodypack receiver is road-grade — it handles the physical demands of nightly use without the connector creep that plagues lighter-duty systems. Under session pressure, what stands out most is what you don't hear: no pumping, no RF hiss threading through the mix, no artifacts on sharp percussive transients. That absence is what professional performers are paying for.

Key Features

24-Bit digital audio provides clear, detailed sound

Up to 90 dB signal-to-noise ratio

Exceptionally wide stereo separation

Solid analog RF connection over a 300 ft (90 m) range

Half-rack, single-channel transmitter includes rackmount kit

Specifications

Brand
Shure
Model
P3TRA215CL-H20
Signal-to-Noise Ratio
Up to 90 dB
Audio Resolution
24-bit digital
RF Range
300 ft (90 m)
Tuning Range
24 MHz (region dependent)
Transmitter Form Factor
Half-rack, single channel
Included Components
P3T Transmitter, P3RA Bodypack Receiver, Rackmount kit, ¼-wave antenna, BNC cables, Power supply, Battery adapter kit, User guide

Pros & Cons

👍 Pros

  • 24-bit digital audio transmission preserves the detail and transient response that matter most in a dense live mix
  • 90dB signal-to-noise ratio keeps the noise floor inaudible even at conservative bodypack gain settings
  • Exceptionally wide stereo separation creates a spacious, easy-to-read mix that reduces listener fatigue over long performances
  • 300-foot RF range with a solid analog connection provides reliable coverage across full-size stages without dropout anxiety
  • Half-rack transmitter with included rackmount kit integrates cleanly into a professional touring or install rack

👎 Cons

  • Single-channel transmitter means multi-artist setups require multiple units and careful frequency coordination
  • 24 MHz tuning range, while adequate for most venues, may be limiting in heavily congested RF markets
  • Bodypack receiver adds belt-worn weight that some performers find cumbersome during high-movement performances
  • No built-in ambient mic or mix-control on the transmitter — monitoring blend must be managed at the console

Frequently Asked Questions

No phantom power is required. The P3T transmitter runs on its included power supply or optional battery adapter kit, and the P3RA bodypack receiver runs on AA batteries — keeping your signal chain clean without phantom-related noise concerns.
Companding is the processing that encodes audio for RF transmission and decodes it on the other end. Shure's patented Audio Reference Companding is tuned to preserve transient response and keep the noise floor below audibility — you hear the mix, not the compression artifacts that plague cheaper wireless IEM systems.
The P3T transmitter maintains a solid analog RF connection up to 300 feet (90 meters) under typical stage conditions. Metal rigging, dense crowds, and competing RF environments will compress that range, so proper antenna placement — and the included BNC cables for remote mounting — is essential for consistent performance across the full stage.
Yes. The P3T transmitter accepts a standard ¼-inch input, making it compatible with any console aux send — analog or digital. Gain staging from your console aux to the transmitter input is straightforward, and the 90dB SNR ensures even quiet acoustic passages translate without the noise floor creeping up.
The PSM 300 is engineered for exceptionally wide stereo separation — wider than most competing systems in this tier. For performers who rely on spatial placement to distinguish instruments (especially drummers and multi-instrument performers), that separation means a cleaner, less fatiguing listen over a long set.

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