Overview

Experience crystal-clear, professional in-ear monitoring with the Shure PSM 300 P3TR112GR-G20. Featuring Shure’s patented Audio Reference Companding, this system delivers 24-bit digital audio that’s ultra-low in noise and free from artifacts—ideal for live stages, theaters, houses of worship, and rehearsal spaces. Easy one-touch frequency scan and IR sync make setup a breeze, while MixMode lets performers blend two mix channels on the fly. The half-rack P3T transmitter sends reliable audio over a 300-foot (90 m) range, and the lightweight P3R bodypack receiver pairs with SE112 sound-isolating earphones for immersive performance monitoring. Rugged, intuitive, and performance-ready, this PSM 300 set delivers freedom and clarity wherever you play.

Features:

• 24-bit digital audio with Audio Reference Companding for ultra-clear, artifact-free sound


• One-touch frequency scan and IR sync for instant clean channel setup


• MixMode® stereo mixing allows real-time blending of two sources


• 300-foot (90 m) reliable wireless range, even in crowded RF environments


• Includes SE112 Sound Isolating™ earphones with up to 37 dB ambient noise reduction


• Rugged half-rack P3T transmitter with balanced ¼″ TRS inputs and loop-out


• Lightweight P3R bodypack receiver clips to performer easily


• Powered by two AA batteries (up to 7 hrs) or optional rechargeable pack

Specifications:

• Wireless Range: Up to 300 ft (90 m) line-of-sight


• Frequency Band (G20): 488–512 MHz; operates on up to 15 channels; 24 MHz tuning bandwidth


• Audio: 24-bit digital; frequency response ~38 Hz–15 kHz; >90 dB SNR; <0.5% THD


• Transmitter (P3T) Size: ~1.7″ × 7.8″ × 6.8″ (43×198×172 mm)


• Transmitter Weight: ~27.6 oz (783 g)


• RF Power: Region-dependent, up to 30 mW; detachable ¼-wave antenna


• Inputs/Loop-Out: ¼″ TRS balanced


• Power: 12–15 V DC, ~260 mA


• Receiver (P3R) Size: ~4.3″ × 2.5″ × 0.8″ (110×64×21 mm)


• Receiver Weight: ~3.5 oz (98 g) without batteries


• Receiver Output: 1/8″ headphone jack, 80 mW into 32Ω


• Batteries: 2× AA, ~5–7 hrs runtime; power-save when not in use


• Earphones (SE112): Single dynamic microDriver; 25 Hz–17 kHz response; 108 dB SPL/mW sensitivity


• Noise Isolation: 37 dB passive; 50″ fixed cable