Shure QLXD2/KSM9B S50

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Shure QLXD2/KSM9B S50

Shure

QLXD2/KSM9B S50

4.6 Expert Rating

Product Info

Article Number: 585739
Brand: Shure
Model: QLXD2/KSM9B S50
Category: Transmitters
Price: $1,197.90

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

This Shure QLXD2/KSM9B S50 is a serious step up for vocalists needing reliable, high-fidelity wireless. The KSM9 capsule's smooth, natural sound and the rock-solid digital link make it a winner for demanding stage work – think corporate events, theater, or any situation where pristine audio and security are essential.

Product Description

  • Shure QLXD2/KSM9B S50
  • Digital UHF Handheld Transmitter
  • Frequency band: S50 (823 - 865 MHz)
  • With KSM9 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
PROS
  • • KSM9 capsule delivers Shure's signature clarity and detail.
  • • Robust metal build feels exceptionally durable for stage use.
  • • AES-256 encryption provides a genuinely secure wireless link.
  • • Wide 72 MHz bandwidth offers substantial frequency flexibility.
CONS
  • • The unit's weight, due to the metal construction, can be fatiguing during long performances.
  • • Premium-priced, placing it out of reach for budget-conscious performers.
  • • Limited frequency band availability can be a constraint in crowded RF environments.

Product Video

Key Features

Type Digital UHF Handheld Transmitter
Frequency Band 823 - 865 MHz (S50)
Channels 22
Power 1/10 mW
Battery Life Approximately 8 hours with AA batteries, longer with SB 900A Li-ion
Connector Infrared Interface

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Frequently Asked Questions

The S50 band offers good channel availability, but its narrower bandwidth can be a limitation in areas with high RF congestion compared to wider bands.
The infrared sync is generally very reliable for short distances, but line-of-sight is required for initial pairing and occasional re-syncing.
While AA batteries work, the SB 900A lithium-ion battery provides extended runtime and is optimized for the system’s power management.

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