Shure QLXD2/SM87 H51

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Shure QLXD2/SM87 H51

Shure

QLXD2/SM87 H51

4.9 Expert Rating

Product Info

Article Number: 575769
Brand: Shure
Model: QLXD2/SM87 H51
Category: Transmitters
Price: $731.50

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

This Shure QLXD2/SM87 combo is a serious step up for vocalists needing wireless freedom. The SM87 capsule provides that iconic, full sound, and the digital transmission cuts through RF clutter like a dream—perfect for stage performers and live sound engineers who demand pristine audio and reliable operation.

Product Description

  • Shure QLXD2/SM87 H51
  • Digital UHF handheld transmitter
  • with SM87 condenser capsule
  • Audio signal: 24 Bit / 48 kHz
  • AES-256 encryption for uninterceptable 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
  • Polar patterbn: Super cardioid
  • Frequency transmission via infrared interface
  • Transmitter operation with 1.5 V AA batteries - optionally also with SB 900A lithium-ion battery pack
  • Frequency band: H51 (534 - 598 MHz)
  • Includes microphone stand holder and storage bag
PROS
  • • SM87 capsule delivers classic, warm, and present vocal tone
  • • QLXD2 digital transmission offers rock-solid reliability and low latency
  • • AES-256 encryption provides secure, private performance transmission
  • • Infrared sync simplifies channel management, quick and intuitive setup
CONS
  • • The unit's build feels a bit plasticky for the premium price point
  • • Battery life with standard AA cells is merely adequate, not exceptional
  • • The supercardioid pattern can be unforgiving of mic technique

Product Video

Key Features

Type Digital UHF Handheld Transmitter
Frequency Band H51 (534 - 598 MHz)
Channels 22
Power 1/10 mW
Battery Life Approximately 6 hours with AA cells, 10+ hours with SB 900A
Connector Infrared Interface

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Frequently Asked Questions

Digital eliminates the RF interference issues common with analog systems, resulting in cleaner audio and a more stable connection, particularly in crowded wireless environments.
The infrared sync is generally very reliable for short distances, but line-of-sight is required—avoid blocking the transmitter’s IR window for best results.
You'll realistically get around 100-150 feet with good line-of-sight, but obstacles and interference can significantly reduce that range.

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