Wireless Micrrophone

The Shure QLXD2 BETA87C K51 wireless handheld microphone embodies sonic excellence with impeccable audio quality and secure transmission on the K51 frequency band (606 / 670 MHz). Its BETA87C cardioid capsule and Shure Gain Ranging technology ensure clear and precise pickup, ideal for demanding live performances. With a battery life of 10 hours thanks to the optional Shure SB900A battery, this microphone is the perfect choice for professionals seeking reliability and innovation.

ARTICLE N° 96275
  • Shure QLXD2 BETA87C K51
  • Wireless microphone for QLX-D wireless transmission system
  • K51 carrier frequency band (606 / 670 MHz)
  • Fast frequency scanner
  • Interference detection and alerts
  • Frequency and power lock
  • AES 256-bit encrypted signal
  • Backlit LCD display
  • Rugged die-cast aluminum housing
  • Battery life: 9 hours with 2 LR6 batteries (included)
  • Battery life: 10 hours with rechargeable lithium-ion battery (SB900A optional)
  • Contacts for charging on docking station (SBC200/SBC220 sold separately)
  • Management by PC or Mac with Wireless Workbench 6 software
  • Remote monitoring with ShurePlus™ iOS application
  • Switchable transmission power: 1 and 10 mW
  • System audio frequency response: 20 Hz to 20 kHz
  • Dynamic range: 120 dB
  • Latency: 2.9 ms
  • A/D and D/A conversion: 24 bits / 48 kHz
  • Synchronization by IR link
  • Compatible with the Shure QLXD4 receiver
  • Up to 72 MHz of HF bandwidth
  • Up to 67 systems simultaneously per band
  • BETA87C capsule
  • Directivity: Cardioid
  • Capsule: Condenser
  • Bandwidth: 50 Hz - 16 kHz
  • Output impedance: 100 Ω
  • Sensitivity: −51 dBV/Pa (2 mV)
  • Enameled cast steel body
  • Reinforced shockproof grille
  • Internal pop filter
  • Accessories included: clip microphone + carrying pouch
  • Dimensions: 256 x Ø51 mm
  • Weight: 347g
The Shure QLXD2 BETA87C K51 wireless handheld microphone delivers impeccable audio quality and secure transmission with 256-bit AES encryption on the K51 frequency band (606/670 MHz).
Compatible with the Shure SB900A rechargeable battery (sold separately) offering 10 hours of battery life, it can also operate with standard LR6 batteries for 9 hours of battery life.

Thanks to Shure Gain Ranging technology, this microphone automatically adjusts the gain of the signal transmitted to the receiver, ensuring audio consistency even during sudden volume changes, without the need for manual adjustments from the transmitter.
Pairing with the receiver via infrared ensures fast and error-free synchronization, greatly simplifying on-stage setup.
Its die-cast aluminum housing is robust and the frequency and power lock function prevents accidental changes.

The integrated Shure BETA87C capsule, with its precise cardioid polar pattern, is ideal for isolating the sound source and attenuating noise from behind, making it perfect for noisy stage setups or complex acoustic environments.
The shock mount system and pop filter minimize handling and breath noise, providing clear, flawless sound pickup.

The slight bass roll-off reduces proximity effect and delivers a warm Shure vocal signature, perfect for lead vocals and backing vocals.
The Shure QLXD2 BETA87C K51 is the ideal solution for superior live sound reinforcement.
Transmission technology
 Digital
Component(s)
 Hand transmitter + capsule
Capsule type
 Capacitor
Directivity
 Cardioid
RF power
 10 mW
Selectable frequency
 Yes
Charging system
 Yes (sold separately)
Power supply
 Rechargeable battery, Battery(ies)
Carrier frequencies
 UHF (470 ⭢ 694 MHz)
Weight
 350 g
Accessories included
 Clip, Carrying Bag
Frequency response
 50 Hz – 16 kHz

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