Shure

Shure SLXD24/K8B-J52 Wireless Microphone System - KSM8 Vocal Mic

4.6 (5 reviews)

Shure's SLX-D digital wireless system pairs the acclaimed KSM8 Dualdyne vocal mic with rock-solid 24-bit audio for stage-ready performance.

$1,179.00*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

The Shure SLXD24/K8B-J52 pairs the SLX-D digital wireless platform with the KSM8 Dualdyne cardioid dynamic capsule, a microphone designed around a unique dual-diaphragm architecture that controls proximity effect and delivers remarkably consistent tone whether a vocalist is singing directly into the grille or working the mic at arm's length. The digital wireless backbone transmits 24-bit, 48 kHz uncompressed audio across a 330-foot operating range, producing a 120 dB dynamic range that captures every nuance from a whispered verse to a belted chorus without compression artifacts or dropouts. Digital predictive switching diversity ensures the receiver seamlessly selects the strongest antenna signal, keeping the RF link stable even in challenging environments.

Setting up the system is designed to be fast: the SLXD4 receiver scans available frequencies with a single button press, and IR Sync instantly locks the SLXD2 handheld transmitter to the chosen channel. With 44 MHz of tuning bandwidth and 32 available channels, there is ample room to coordinate multiple systems on the same stage. The transmitter runs for up to 8 hours on two AA batteries, and the optional SB903 lithium-ion rechargeable battery adds precise charge metering in hours and minutes. The included zippered carrying bag, rackmount kit, and antenna round out a package that is ready for houses of worship, live performance venues, corporate events, and broadcast applications straight out of the box.

Key Features

WIRELESS FREQUENCY BAND SELECTION: Before purchasing, please ensure that the wireless frequency band you select works in your area (refer to Shure website for details > search Shure Wireless Frequency Finder).

WHAT'S IN THE BOX: (1) SLXD2 handheld transmitter with KSM8 Dualdyne cardioid dynamic microphone capsule (black) and (1) SLXD4 single-channel receiver with antenna and rackmount accessories, (1) zippered bag and (2) AA batteries

DIGITAL WIRELESS TECHNOLOGY: Digital predictive switching diversity. 44 MHz tuning bandwidth (region dependent). 32 available channels per frequency band (region dependent). Up to 10 compatible systems per 6MHz TV band; 12 systems per 8 MHz band. RF Scan and IR Sync to quickly find an open frequency and link the transmitter to a SLX-D receiver. Easy pairing of transmitters and receivers over IR scan and sync.

BATTERY LIFE: Up to 8 hours from 2 AA batteries. Upgrade to the optional Shure SB903 Lithium-ion rechargeable battery to monitor battery charge status in hours and minutes, as well as battery life and health statistics.

SOUND QUALITY: Crystal clear 24-bit / 48 kHz digital audio. Extended 20 Hz to 20 kHz frequency response (microphone dependent) for natural and clear sound. Stable digital RF signal transmission. 120 dB dynamic range - excellent for vocals & acoustic and wind instruments.

Specifications

Transmitter
SLXD2 Handheld with KSM8 Dualdyne Capsule
Receiver
SLXD4 Single-Channel
Frequency Band
J52 (region dependent)
Tuning Bandwidth
44 MHz
Available Channels
32 per frequency band
Audio Resolution
24-bit / 48 kHz
Frequency Response
20 Hz – 20 kHz
Dynamic Range
120 dB
Operating Range
330 ft (100 m)
Battery
2x AA (up to 8 hours)
Optional Battery
Shure SB903 Lithium-Ion Rechargeable
Compatible Systems per Band
Up to 10 per 6 MHz / 12 per 8 MHz
Microphone Pattern
Cardioid Dynamic

Pros & Cons

👍 Pros

  • KSM8 Dualdyne dual-diaphragm capsule delivers consistent vocal tone across varying distances
  • 24-bit/48 kHz digital audio with 120 dB dynamic range rivals wired microphone clarity
  • RF Scan and IR Sync make frequency selection and transmitter pairing fast and straightforward
  • 44 MHz tuning bandwidth with 32 channels provides flexibility in congested RF environments
  • 8-hour battery life on standard AA batteries keeps you running through long events without swaps

👎 Cons

  • J52 frequency band is region-specific and may not be authorized in all areas
  • Single-channel receiver limits you to one transmitter without purchasing additional receivers
  • AA batteries do not display precise remaining charge unless you upgrade to the optional SB903 rechargeable
  • No built-in Bluetooth or app-based remote monitoring on the SLXD4 receiver

Frequently Asked Questions

The J52 designation corresponds to a specific frequency band. Before purchasing, check the Shure Wireless Frequency Finder on Shure's website to confirm the J52 band is authorized for use in your area.
The transmitter runs up to 8 hours on two standard AA batteries. You can also upgrade to the optional Shure SB903 lithium-ion rechargeable battery, which displays remaining charge in hours and minutes.
You can operate up to 10 compatible SLX-D systems per 6 MHz TV band, or 12 systems per 8 MHz band, making it suitable for multi-performer setups.
The KSM8 Dualdyne uses a dual-diaphragm design in a dynamic microphone, which provides a controlled low-end proximity effect and consistent tone whether you're close to the mic or pulling away during performance.
The system uses IR Sync — simply point the transmitter at the receiver and press sync. The receiver also has an RF Scan feature that automatically finds an open frequency before pairing.