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This system is available as QLXD24/B87A. It contains a QLXD2 handheld transmitter with Beta87A microphone head and a QLXD4 receiver.
The system operates in the UHF band to transmit pristine 24-bit/48 kHz digital audio with clarity, accurate low end, and crisp transient response. It utilizes Digital Predictive Switching Diversity to protect the transmission from interference and deliver solid RF signal stability without audio artifacts. You can run up to 60 mic channels at the same location.
The QLXD24/B87A includes the QLXD2 handheld transmitter featuring an interchangeable capsule design and equipped with a Beta 87A condenser capsule. The supercardioid pickup pattern focuses on the voice, helping to reduce feedback on loud stages. The lightweight transmitter provides up to 9 hours of operation on two AA batteries, with selectable 1/10mW RF power and a transmission range up to 330'.
The receiver features audio and RF meters, 60 dB of gain control, and both mic/line XLR and 1/4" instrument outputs. A large LCD screen and intuitive controls let you quickly make adjustments, even in low-light situations. Additional features include automatic frequency scanning, IR sync, and internal limiting to prevent clipping.
The Ethernet port allows multiple receivers to be easily networked together for simplified frequency coordination and deployment via Shure's Wireless Workbench (WWB) software.
Rugged Handheld Transmitter with Beta 87A Condenser Supercardioid Capsule
The durable QLXD2 handheld transmitter offers a lightweight, ergonomic design and is comfortable to hold.
The transmitter features a backlit LCD that displays essential information and provides fast menu access. It can be locked out to prevent accidental changes during a performance. The adjustable input sensitivity on the transmitter accommodates a wide variety of speaking styles and mic levels. The transmitter syncs to the receiver via infrared with a quick press on the Sync button.
The Beta 87A condenser capsule handles SPL levels up to 140 dB and offers a smooth frequency response with a gradual presence rise and controlled proximity effect tailored for vocals. Its supercardioid pickup pattern helps isolate the voice from unwanted background noise.
The transmitter's interchangeable capsule design allows you to choose the ideal capsule for your application. Shure offers a variety of optional dynamic and condenser mic capsules with varying pickup patterns—capsules include the Beta 58A, SM58, SM86, SM87A, KSM8, and KSM9.
Robust Performance with Digital Switching Diversity Reception
Wireless Technology | Analog UHF |
Number of RF Channel Frequencies | 2560 |
Included Transmitters | 1 x Handheld |
Diversity | Antenna Diversity |
RF Frequency Band | G50: 470 to 534 MHz |
RF Bandwidth | 64 MHz |
Frequency Step Size | 25 kHz |
Max Operating Range | 330' / 100.6 m |
Max Transmitters per Band | 60 |
Sample Rate/Resolution | 48 kHz / 24-Bit |
Latency | < 2.9 ms |
Dynamic Range | 120 dB |
Encryption | AES 256 |
Modulation | Proprietary |
Receiver Type | Tabletop |
Mounting Options | Rackmount (with Included Hardware) |
Rackmount Size | 1 RU (1/2 Rack) |
Antenna | 2 x 1/2 Wave External, Detachable (Rear-Mount) |
Number of Audio Channels | 1 |
Audio I/O | 1 x XLR 3-Pin Male Balanced Output 1 x 1/4" TRS Female Balanced Output |
Gain Range | -18 to +42 dB (1 dB Steps) |
Pad | 30 dB |
Audio Output Level | XLR Output: +18 dBV (Line Level) XLR Output: -12 dBV (Mic Level) 1/4" Output: +12 dBV (Instrument Level) |
Phantom Power Protection | On 1/4", XLR Output |
Network I/O | 1 x RJ45 (10/100 Mb/s) |
Network Protocols | DHCP, Manual IP |
Impedance | XLR Output: 100 Ohms (Balanced) 1/4" Output: 100 Ohms (Balanced) 1/4" Output: 50 Ohms (Unbalanced) |
Adjacent Channel Isolation | >70 dB |
Spurious | Rejection: >80 dB |
Power Requirements | AC/DC Power Adapter |
AC/DC Power Adapter | 12 VDC at 0.4 A, Center-Positive (Included) |
AC Input Power | 100 to 240 VAC, 50 / 60 Hz at 150 mA |
Display & Indicators | 1 x Backlit LCD (AF Level, Channel, Group, Menu Navigation, Metering, RF Level, Transmitter Battery Status) 1 x LED (Sync) 1 x LED (Peak) |
Housing | Metal |
Operating Temperature | 0 to 122°F / -18 to 50°C |
Dimensions | 7.8 x 1.6 x 5.9" / 197 x 41 x 151 mm (without Antennas) |
Weight | 1.7 lb / 777 g (without Antenna) |
Transmitter Type | Handheld |
RF Output Power | 1 / 10 mW |
Audio I/O | None |
Muting | None |
Gain Range | 0 to 21 dB (3 dB Steps) |
Frequency Response | 30 Hz to 20 kHz |
Sync Method | IR |
Antenna | 1 x 1/4 Wave |
Power Requirements | Battery |
Battery Type | 2 x AA (Included) 1 x Shure SB900A (Not Included, Replaceable) |
Approx. Battery Life | 9 Hours (Alkaline) |
Display & Indicators | 1 x Backlit LCD (Channel, Group, RF Output Power) |
Housing | Aluminum |
Dimensions | 2 x 10.1" / 51 x 256 mm |
Weight | 12.2 oz / 347 g (without Batteries) |
Microphone Type | Handheld Capsule |
Sound Field | Mono |
Capsule | Electret Condenser |
Polar Pattern | Supercardioid |
Frequency Range | 50 Hz to 20 kHz |
Maximum SPL | 140.5 dB SPL |
Sensitivity | -52.5 dBV/Pa |
Package Weight | 9.6 lb |
Box Dimensions (LxWxH) | 19.4 x 17.4 x 4.2" |