Shure

Shure QLXD24/B87A-V50 BETA 87A Wireless Microphone System

Name: Shure QLXD24/B87A-V50 BETA 87A Wireless Microphone System
Brand: Shure
SKU: QLXD24/B87A-V50

★★★★★4.0 (43 reviews)

Studio-grade supercardioid clarity meets rock-solid digital wireless — the QLXD24/B87A is built for vocalists who can't afford a dropout or a muddy mix.

$122.00*

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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Shure QLXD24/B87A is a professional wireless vocal system built around two well-regarded components: the Beta 87A supercardioid condenser capsule and the QLXD4 half-rack digital receiver. The Beta 87A brings a precise, supercardioid polar pattern with a smooth, slightly forward high-frequency presence that works well for vocals in complex acoustic environments — churches, auditoriums, conference halls, and music venues where monitor bleed and room reflection are constant challenges. The QLXD digital transmission preserves the character of that capsule across the wireless link with consistent audio quality and low latency, making it suitable for applications where analog wireless noise and compression artifacts have historically been the compromise you accept for the freedom of movement.

The QLXD4 receiver is designed for fast deployment and reliable operation in environments with multiple wireless systems. Automatic frequency scanning and one-touch IR sync between the receiver and handheld transmitter reduce setup time significantly compared to manual frequency coordination. The Ethernet port enables full Wireless Workbench integration — remote monitoring of RF signal quality, battery status, and gain settings from a connected PC or Mac, which is genuinely valuable in venues where the rack is mounted away from the mix position. The system ships as a complete working package: receiver, handheld transmitter with Beta 87A capsule, antennas, BNC cables, rack hardware, power supply, and AA batteries. Battery runtime of up to 9 hours on alkalines — or 10 hours with the optional SB900 rechargeable — covers demanding full-day use without a mid-event battery change.

Key Features

Includes Beta 87A, QLXD4, microphone clip, power supply, 2 AA batteries, battery contact cover, two 1/2 wave Antennas, 2 BNC cables, zipper Bag, 2 BNC bulkhead adapters, rack mount kit, and user guide

With an interchangeable Beta87A microphone cartridge, the QLXD2/Beta87A is ideal for wireless vocals in presentation spaces, music venues, and houses of worship

Half-rack QLXD4 digital wireless receiver quickly Finds open frequencies and deploys them to transmitters via the one-touch sync function

Offers up to 9 hours of continuous use with 2 AA Alkaline batteries (included) or up to 10 hours of continuous use with a Shure SB900 lithium-ion rechargeable battery (not included)

Ethernet networking enables networked channel scanning and wireless workbench software integration for remote control of receiver settings from Pc/Mac

Specifications

Microphone Capsule

Shure Beta 87A supercardioid condenser

Receiver

QLXD4 half-rack digital wireless receiver

Frequency Sync

One-touch IR sync

Battery Life (AA Alkaline)

Up to 9 hours

Battery Life (SB900 Li-Ion)

Up to 10 hours

Networking

Ethernet — Wireless Workbench software compatible (PC/Mac)

Frequency Band

V50

Included Accessories

Microphone clip, power supply, 2 AA batteries, battery contact cover, two ½-wave antennas, 2 BNC cables, 2 BNC bulkhead adapters, zipper bag, rack mount kit, user guide

Brand

Shure

Model

QLXD24/B87A-V50

Pros & Cons

👍 Pros

The Beta 87A supercardioid capsule delivers a consistently present, controlled vocal sound with natural high-frequency detail that cuts through a dense mix without harsh EQ.
QLXD digital transmission maintains audio quality across the wireless link — the signal arriving at the receiver closely mirrors what the capsule captures, with low latency.
One-touch IR sync between receiver and transmitter eliminates manual frequency programming, accelerating multi-unit setup for touring or event production.
Ethernet integration with Wireless Workbench gives engineers remote visibility over RF status and battery level — critical for permanent installations.
Up to 10 hours of runtime with the SB900 rechargeable battery comfortably covers full-day conference use or back-to-back evening services.

👎 Cons

The V50 frequency band occupancy should be verified against your specific region's current RF landscape — band availability varies by country and market, and local TV broadcast assignments can reduce usable spectrum.
The Beta 87A supercardioid pattern is unforgiving of poor mic technique — vocalists who drift off-axis or don't maintain consistent distance will hear it in the signal.
The QLXD system does not support AES256 encryption, which may matter for high-security corporate or government presentation environments.
The SB900 rechargeable battery that extends runtime to 10 hours is sold separately — the included AA alkalines are adequate but add an ongoing consumable cost for high-frequency users.
Half-rack form factor of the QLXD4 requires a half-rack adapter or paired unit for standard 19-inch rack mounting, adding a small hardware consideration for permanent installs.

Frequently Asked Questions

What makes the Beta 87A's supercardioid pattern the right choice for wireless vocal applications?

The Beta 87A's supercardioid pattern tightens the pickup window compared to a standard cardioid, which significantly reduces bleed from stage monitors, PA reinforcement, and nearby sources. For live vocal use — especially on crowded stages or in houses of worship with reflective acoustics — this translates directly to a cleaner, more isolated signal at the receiver with greater gain before feedback.

How does the QLXD4 receiver find and lock onto a clean frequency in a dense RF environment?

The QLXD4 scans the RF environment and identifies open frequencies automatically. Once you select a clean channel on the receiver, the one-touch sync function transmits that frequency to the handheld transmitter via IR — no manual frequency entry required on the transmitter. This makes setup in multi-system environments fast and repeatable.

Does the QLXD system require phantom power at the receiver end?

No. The QLXD4 receiver connects to a mixer or preamp via balanced XLR output and runs on standard AC power via the included power supply. Phantom power is irrelevant in a wireless system — the transmitter houses its own condenser capsule circuit powered by the AA batteries (or optional SB900 rechargeable battery) in the handheld unit.

Can the QLXD4 receiver be controlled and monitored remotely without physical access?

Yes. The QLXD4 includes an Ethernet port that enables integration with Shure's Wireless Workbench software on PC or Mac, allowing remote monitoring of RF signal strength, battery level, channel gain, and receiver settings across networked installations — essential for larger venues or permanent installs where the rack is not easily accessible from the mixing position.

What is the operating battery life, and does the transmitter give a low-battery warning?

The handheld transmitter runs up to 9 hours on two AA alkaline batteries, or up to 10 hours with a Shure SB900 lithium-ion rechargeable (sold separately). Battery status is displayed on both the transmitter and the QLXD4 receiver, giving the engineer a heads-up before a critical handoff or break.