Handheld Wireless Microphone System
Featuring an SM58® handheld wireless microphone transmitter, QLXD24/SM58 combines professional features with simplified setup and operation.

Includes SM58, QLXD4, microphone clip, power supply, 2 AA batteries, battery contact cover, two 1/2 wave antennas, 2 BNC cables, zipper bag, 2 BNC bulkhead adapters, rackmount kit, and user guide

The Shure QLXD24/SM58 is a digital wireless handheld microphone system that is part of Shure's QLX-D line of digital wireless systems.

Shure QLX-D Digital Wireless delivers defined, streamlined performance with transparent 24-bit digital audio. Combining professional features with simplified setup and operation, QLX-D offers outstanding wireless functionality for demanding live sound events and installations.

QLX-D delivers outstanding wireless functionality ideal for mid-size events and installations in businesses, hotels, and government offices with conferencing spaces; schools, houses of worship, and live performance spaces.

Shure QLXD24/SM58 Includes:

QLXD2 Handheld Transmitter with SM58 Cartridge
QLXD4 Receiver
Battery Contact Cover
Two (2) Half-Wave Antennas
Two (2) BNC Cables
Two (2) BNC Bulkhead Adapters
Zipper Bag
Rackmount Kit
User Guide

Shure QLXD24/SM58 Features:

Transparent 24-bit digital audio captures every performance detail
Extended 20 Hz - 20 kHz frequency range (microphone-dependent)
Over 120dB of dynamic range eliminates transmitter gain adjustment
Wide 64 MHz tuning bandwidth (region-dependent)
Up to 17 compatible systems per 6 MHz TV channel
Compatible with Shure Wireless Workbench 6 Control Software
Remote control from an iOS device via ShurePlus Channels Mobile App
AES-256 encryption for secure wireless transmission
Professional-grade all metal construction

Shure QLXD24/SM58 Specifications:

Overall System

RF Carrier Range:  470–937.5MHz, varies by region
Working Range:  100 m (328 ft)
Note: Actual range depends on RF signal absorption, reflection and interference.
RF Tuning Step Size:  25 kHz, varies by region
Image Rejection:  > 70 dB, typical
RF Sensitivity:  -97 dBm at 10-5 BER
Latency:  <2.9 ms
Audio Frequency Response QLXD1:  20 Hz – 20 kHz (+/-1 dB, Note: Dependent on microphone type)
Audio Dynamic Range (System Gain @ +10):  > 120 dB, A-weighted, typical
Total Harmonic Distortion (-12 dBFS input, System Gain @ +10):  <0.1%
System Audio Polarity:  Positive pressure on microphone diaphragm produces positive voltage on pin 2 (with respect to pin 3 of XLR output) and the tip of the 6.35 mm (1/4-inch) output.
Operating Temperature Range:  -18°C (0°F) to 50°C (122°F)
Note: Battery characteristics may limit this range.
Storage Temperature Range:  -29°C (-20°F) to 74°C (165°F)
Note: Battery characteristics may limit this range.

QLXD4 Receiver

Dimensions (H×W×D):  1.63" × 7.75" × 5.94" (41mm × 197mm × 151mm)
Weight:  1.71 lbs (777 g, without antennas)
Housing:  Steel
Power requirements:  12 V DC @ 0.4 A, supplied by external power supply (tip positive)

RF Input:
Spurious Rejection:  >80 dB, typical
Connector Type:  BNC
Impedance:  50 Ohms

Audio Output:
Gain Adjustment Range:  -18 to +42 dB in 1 dB steps

Configuration:
1/4" (6.35 mm):  Impedance balanced(Tip=audio, Ring=no audio, Sleeve=ground)
XLR:  Balanced (1=ground, 2=audio +, 3=audio -)

Impedance:
1/4" (6.35 mm): 100 Ohms (50 Ohms Unbalanced)
XLR:  100 Ohms

Full Scale Output:
1/4" (6.35 mm):  +12 dBV
XLR:  LINE setting = +18 dBV, MIC setting =-12 dBV
Mic/Line Switch:  30 dB pad

Phantom Power Protection:
1/4" (6.35 mm): Yes
XLR: Yes

Networking

Network Interface:  Single Port Ethernet 10/100 Mbps
Network Addressing Capability:  DHCP or Manual IP address
Maximum Ethernet Cable Length:  328 ft (100 m)

QLXD2 Wireless Handheld Transmitter

SM58 Cartridge Polar Pattern:  Cardioid
Frequency Response:  50 Hz - 15 kHz
Mic Offset Range:  0 to 21 dB (in 3 dB steps)
Battery Type:  Shure SB900 Rechargeable Li-Ion or AA batteries 1.5 V
Battery Runtime @ 10 mW:  Shure SB900: up to 10 hours; Alkaline: up to 9 hours
Dimensions (LxDia.):  10.1" x 2.0" (256 mm x 51 mm)
Weight:  12.2 oz. (347 g), without batteries
Housing:  Machined aluminum

Audio Input:
Configuration:  Unbalanced
Maximum Input Level (1 kHz at 1% THD):  145 dB SPL (SM58), typical
Note: Dependent on microphone type

RF Output:
Antenna Type:  Integrated Single Band Helical
Occupied Bandwidth:  < 200 kHz
Modulation Type:  Shure proprietary digital
Power:  1 mW or 10 mW