Shure QLXD24/KSM9 K51

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Shure QLXD24/KSM9 K51

Shure

QLXD24/KSM9 K51

4.6 Expert Rating

Product Info

Article Number: 586289
Brand: Shure
Model: QLXD24/KSM9 K51
Price: $2,044.90

* Prices may vary. Check retailer for current pricing and availability.

This Shure QLXD24/KSM9 K51 is a top-tier wireless vocal solution. The KSM9 capsule provides stunning vocal reproduction, and the digital transmission is rock-solid. It's perfect for professional vocalists, stage performers, and anyone needing reliable, high-fidelity wireless audio where interference is a concern.

Product Description

Shure QLXD24/KSM9 K51

*Bundle offer comprising*, Shure QLXD2/KSM9B K51

  • *Digital UHF Handheld Transmitter*
  • Frequency band: K51 (606 - 670 MHz)
  • With SM9 condenser capsule
  • 24 Bit / 48 kHz audio signal
  • AES-256 encryption for tap-proof transmission
  • Up to 72 MHz switching bandwidth
  • 22 Compatible channels in an 8 MHz TV band
  • Switchable transmission power: 1/10 mW
  • 120 dB Dynamic range
  • Metal handheld transmitter with KSM9 condenser microphone capsule
  • Polar pattern switchable: cardioid/supercardioid
  • Frequency transmission via infrared interface
  • Transmitter operation with 1.5 V AA batteries - optionally also with SB 900A lithium-ion battery
  • Includes bag and microphone mount
  • Shure QLXD4 K51
  • *Digital UHF Receiver*
  • Frequency band: K51 (606 - 670 MHz)
  • 24 bit / 48 kHz audio signal
  • AES-256 encryption for tap-proof transmission
  • Up to 72 MHz switching bandwidth
  • 22 compatible channels in an 8 MHz TV band
  • 9.5" housing
  • Detachable BNC antennas
  • Ethernet port for system monitoring and configuration
  • Frequency transmission via infrared interface
  • XLR / jack output
  • Includes PS23 power supply
  • rack mount
  • antennas and antenna front mounting set for antenna
PROS
  • • KSM9 capsule delivers exceptional clarity and detail for vocals.
  • • AES-256 encryption provides robust protection against interference.
  • • 72 MHz bandwidth offers significant channel flexibility in congested environments.
  • • Metal transmitter construction feels rock-solid and inspires confidence onstage.
CONS
  • • Premium-priced system, a significant investment for most performers.
  • • AA battery operation can be inconvenient; rechargeable is an extra expense.
  • • Supercardioid pattern demands precise mic technique to avoid feedback.

Product Video

Key Features

Frequency Band 606 - 670 MHz (K51)
Channels 22 compatible channels within an 8 MHz TV band
Range Up to 100 feet (typical, line of sight; can be significantly reduced by obstacles)
Mic Type Condenser (KSM9 capsule)
Battery Life Approximately 8 hours with AA batteries (varies with power setting)
Receiver Outputs XLR, 1/4" TRS

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Frequently Asked Questions

Infrared sync is instantaneous and eliminates the potential for drift or errors common with RF syncing, ensuring consistent frequency coordination.
Yes, the KSM9 capsule is user-replaceable, though it's a premium component, so factor that into long-term ownership costs.
1mW offers extended battery life and is suitable for smaller venues; 10mW increases range and penetration through walls, crucial for larger stages.

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