Shure U4D Receiver

The Shure U4D Receiver has been a staple of our business.  We have used these on an almost daily basis in conjunction with the Shure U1 Beltpacks or the Shure U2/Beta 58 wireless handheld for a complete system.  We have used these systems for anything from spoken word from a stage, wireless guitar packs, drama presentations, most recently more often used with the Countryman E6T Earset, and as a delay line for broadcast applications that require sound transmitted for entire city blocks.  These receivers have all frequencies displayed in megahertz along with group/channel, or can also easily be set for the performer’s name.  Each receiver has a squelch setting, lock out status, battery fuel gauge.  They also display the UHF TV channel on the easy to read LCD display.  Each receiver employs it’s own five-segment RF diversity level meter, and a seven-segment audio level indicator with an independent headphone monitor jack on the front control panel.  Network extension capability is easily accessed with a standard cable on the back of each unit.  These units have an internal switching power supply, and XLR connectors provide balanced low-impedance mic or line level outputs.  There is a mic/line slide switch and a 1/4 inch phone plug provides unbalanced high-impedance output if required.  These units ship with two half-wave flexible rubber antennas on the front panel.

Please note for any wireless system to function, three items are required, one transmitter, set to the same frequency of the receiver, and an input transducer such as one of our Shure WL185, WL93, or WL93T capsules, or the most popular Countryman Isomax E6T earset.  If this is being used as a wireless guitar system, please note the item required is WA302 which again uses the U1 Body-pack as the transmitter.  This system can also be used with the Shure U2/Beta 58A wireless handheld.

Please also note that a Shure U4D has dual input channels, therefore it allows two input sources each with their own output.

Of coarse when this system is rented from us, we will ensure it is ready for your use with two simple connections, one into a wall plug for power, and the other connection into your sound system with a simple microphone cable.  If you require a sound system – we are pleased to assist you with selecting only the required items for your sized venue also.

RF Carrier Frequency Range

554-862 MHz, depending on region

Working Range

152.4 m (500 ft.) minimum, under typical conditions; 487.6 m (1600 ft.) line of sight - NOTE: Actual working range depends on RF signal absorption, reflection and interference

Audio Frequency Response

50-15,000 Hz, +2 dB. - NOTE: Overall system frequency response depends on the microphone element

Gain Adjustment Range

Switchable from Line to Mic -


+10kHz to +100kHz deviation, depending on region; compressor-expander system with pre- and de-emphasis

RF Power Output

10 mW maximum

Dynamic Range

>102 dB or >110dB, depending on region; A-weighted

Image Rejection

90 dB typical

Spurious Rejection

75 dB typical

Ultimate Quieting

(ref. 45 kHz deviation)
>100 dB, A-weighted

Audio Polarity

North American Standard

System Distortion

(ref. +45 kHz deviation, 1 kHz modulation)
0.3% Total Harmonic Distortion typical
Power Requirements
120 Volts, 12 W min.,16 W max.

Battery Life

Not Applicable

Operating Temperature Range

-20° to 50° C (-4° to 122° F)

Overall Dimensions

44.5 mm H x 482.6 mm W x 295.3 mm D (1-3/4 x 19 x 11-5/8 in.)

Net Weight

3.85 kg (8.48 lbs)

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