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Shure UHF-R Wireless Microphone System

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Page last updated Aug 20, 2025

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Description

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Step into the world of unparalleled audio clarity with the Shure UHF-R Wireless Microphone System, a staple in professional touring environments and high-demand installations. Engineered with precision, this system redefines wireless audio performance, offering over 108 compatible systems that can be used simultaneously, making it a versatile powerhouse for any large-scale event or studio setup. The dual-channel diversity receiver ensures seamless transmission, leveraging Shure's patented Audio Reference Companding technology to deliver crystal-clear sound that stands head and shoulders above conventional systems.

Whether on stage or in the studio, the Shure UHF-R system is designed with the musician in mind. It features automatic frequency selection and infrared synchronization, making setup and configuration a breeze, even in the most crowded RF environments. The included UR2 handheld transmitters are not only rugged and lightweight but also feature interchangeable microphone cartridges, providing the flexibility to tailor your sound to any performance scenario.

Further enhancing its user-friendly design, the system's networking capabilities allow for easy control and management through the Shure Wireless Workbench software. This comprehensive toolset, accessible via an Ethernet network, ensures that every aspect of your wireless system is at your fingertips, from monitoring to advanced configuration.

Key Features:

Dual-channel diversity receiver with Audio Reference Companding for superior sound quality
Over 108 compatible systems can be used simultaneously
Automatic frequency selection and infrared synchronization for easy setup
UR2 handheld transmitters with interchangeable microphone cartridges
Networking capabilities with Shure Wireless Workbench software for comprehensive control
Rugged construction and advanced RF transmission reliability

Product specs

RF Carrier Frequency Range	518-865 MHz, depending on region
Working Range	150 m (500 ft.), under typical conditions
NOTE	Electrical safety approval is based on a maximum ambient temperature of 35 degrees C (95 degrees F).
Audio Frequency Response	40 “ 18,000 Hz, (+1 dB, -3 dB). NOTE: Overall system frequency response depends on the microphone element
Gain Adjustment Range	UR1: -20 to +35 dB; UR2: -10 to +20 dB
Modulation	FM (45 kHz max. deviation), compander system with pre- and
Dynamic Range	>105 dB, A-weighted
Image Rejection	>110 dB typical
RF Sensitivity	-110 dBm Typical 12 dB SINAD; 105 dBm Typical 30 dB SINAD
Ultimate Quieting (ref. 45 kHz deviation)	>100 dB, A-weighted
Signal Polarity	Positive pressure on microphone diaphragm (or positive voltage
System Distortion (ref. ± 45 kHz deviation, 1 kHz modulation)	<0.3% Total Harmonic Distortion typicalPower Requirements: UR1, UR2: Two 1.5V AA batteries; UR4:100 to 240Vac, 50/60 Hz
Current Drain	UR1, UR2: 180 mA max. (normal RF power setting) 240 mA max. (high RF power setting); UR4D, UR4S: 0.8 Amps max.
Battery Life (Typical)	UR1, UR2: 9.5 hours (low power); 6 hours (high power)
Operating Temperature Range	-18 degrees to +57 degrees C (0 degrees to +135 F)
Housing	UR1: Cast magnesium; UR2: Aluminum die-cast handle and aluminum machined battery cup; UR4S, UR4D: Galvanized steel
UR4D Overall Dimensions (H x W x D)	1.72 x 19.00 x 14.39 in. (44 x 483 x 366 mm)
UR4D Net Weight	1 lbs (5.0 kg)
UR2/SM58 Overall Dimensions (Length x Diameter)	10.27 x 2 in. (261 x 51 mm)
UR2/SM58 Net Weight	12.6 oz. (356 g) without battery
Type	Dynamic (moving coil)
Frequency Response	50 to 15,000 Hz
Polar Pattern	Unidirectional (cardioid), rotationally symmetrical about microphone axis, uniform with frequency
Sensitivity (at 1,000 Hz Open Circuit Voltage)	-54.5 dBV/Pa (1.85 mV)
Impedance	Rated impedance is 150 ohms (300 ohms actual) for connection to microphone inputs rated low impedance
Polarity	Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Connector	Three-pin professional audio connector (male XLR type)

FAQs

What is the working range of the Shure UHF-R Wireless Microphone System?: The Shure UHF-R Wireless Microphone System has a working range of up to 150 meters (500 feet) under typical conditions, providing reliable performance for large venues and events.
What type of batteries does the Shure UHF-R Wireless Microphone System require?: The UR1 and UR2 transmitters of the Shure UHF-R Wireless Microphone System require two 1.5V AA batteries, offering up to 9.5 hours of battery life on low power settings.
Is the Shure UHF-R Wireless Microphone System suitable for live performances?: Yes, the Shure UHF-R Wireless Microphone System is designed for professional live performances, offering robust RF performance, a wide frequency response, and dynamic range ideal for high-quality audio transmission.
Can the Shure UHF-R Wireless Microphone System be used in high-temperature environments?: The Shure UHF-R Wireless Microphone System is designed to operate in temperatures ranging from -18°C to +57°C (0°F to +135°F), making it suitable for various performance environments.
What is the frequency range of the Shure UHF-R Wireless Microphone System?: The RF carrier frequency range of the Shure UHF-R Wireless Microphone System is 518-865 MHz, depending on the region, ensuring compliance with local frequency regulations.

Videos

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agiprodj

PG vs PGX vs PGX Digital vs SLX vs ULX vs UHF-R | A Shure Wireless Comparison

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SHURE UR4D UHF-R Wireless Dual Channel Microphone System | agiprodj.com

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UHF-R Wireless - How to Set Up a System | Shure

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Shure UHF-R Wireless: A Lesson In Wireless At Winter NAMM 2008

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Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Shure UHF-R Wireless Microphone System.

Comparisons

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UHF-R is an analog predecessor to Axient Digital, lacking digital outputs and modern features but still delivers solid performance.
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Features and functionality

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The UHF-R system involves companding, which may affect transient accuracy and dynamic range compared to Axient Digital's digital processing.
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Use cases and applications

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UHF-R systems are reliable for live shows despite being analog, but may not provide the digital fidelity needed for studio recording.
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User experience

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Users note that transitioning from Axient to UHF-R may result in differences in audio quality, particularly due to the analog signal chain and lack of AES output.
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