Shure SLXD24/K8B Wireless Handheld Microphone System

The SLXD24/K8B Wireless Handheld Microphone System from Shure provides crystal-clear digital audio quality. Ideal for a wide range of applications, from lecture halls to concert venues, this system includes a KSM8 Dualdyne™ Cardioid Dynamic Microphone capsule on top of the SLXD2 handheld wireless transmitter.

SLXD2 Digital Wireless Handheld Transmitter

Versatile and rugged, the SLXD2 features industry-leading digital wireless technology and design. Sync it easily to the SLXD4 wireless receiver using its IR scan and sync functionality. Choose from a vast selection of interchangeable vocal microphone capsules to perfectly fit your application. Its all-metal construction makes it a hardy component in your audio arsenal.

KSM8 Microphone Capsule

With a patented cartridge design featuring two ultra-thin diaphragms and groundbreaking reverse airflow technology, the KSM8 delivers unmatched control of proximity effect, presence peaks, and bleed, and requires minimal EQ and processing. An innovative diaphragm stabilization system softens the effects of unwanted movement from plosives or impact. Meticulously crafted for world-class performances and presentations in elite venues, the KSM8 is made with professional vocalists in mind.

SLXD4 Digital Wireless Receiver

Experience the freedom of wireless performance with the SLXD4. From lecture-hall presentations to worship services to musical concerts, the SLXD4 is the perfect choice for confident, reliable wireless audio, syncing easily to your choice of wireless transmitters. This receiver boasts a rugged, all-metal construction that makes it a durable choice for day-long presentations or all-night performances. Its half-rack size makes it easy to integrate into any preexisting sound setup.

More about the SLXD Series from Shure

Achieve clear, reliable wireless audio with the SLX Digital series from Shure. This install-friendly line of wireless audio gear is ideal for a wide range of applications, from lecture halls to houses of worship to performance venues of all shapes and sizes. Boasting compatibility with Shure’s UHF wireless antenna distribution and remote antenna accessories, as well as offering a wide selection of single half-rack and dual full-rack receiver options, handheld and bodypack transmitters, and your choice of vocal, lavalier, headset, and instrument microphone system configuration—SLXD offers the versatility and functionality you need, no matter what your project.

SLXD maintains stable signals with high efficiency, letting you achieve transparent, 24-bit digital audio and rock-solid, reliable RF performance. This series delivers crystal-clear digital audio quality with >120 dB dynamic range. Enjoy up to 8 hours of continuous operation using two AA batteries (included) or the optional Shure SB903 Li-ion rechargeable batteries and charging accessories (sold separately). The rack hardware necessary for permanent installation in your setup is also included.

With RF scan and IR sync or the receivers’ integrated frequency setup tool, this wireless system is easy to get started at the push of a button. You can link multiple systems locally via Ethernet to manage setup, group frequency scans, and firmware updates. SLXD also is compatible with Wireless Workbench® software and the ShurePlus™ Channels mobile app, giving you the tool for critical oversight and real-time production control.

Shure SLXD24/K8B Features

• Extended 20 Hz to 20 kHz frequency range (microphone dependent)
• 120 dB dynamic range
• 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
• Easy pairing of transmitters and receivers over IR scan and sync
• Up to 8 hours from 2 AA batteries or optional Shure SB903 rechargeable battery

• SLXD4 single-channel receiver1
• SLXD2/K8B handheld transmitters2
• Antenna and rackmount set1
• AA batteries2

• System
  • RF
    • RF Carrier Frequency Range: 470–937.5 MHz, varies by region (See Frequency Range and Output Power table)
  • Working Range: 100 m ( 328 ft)
  • RF Tuning Step Size: 25 kHz, varies by region
  • Image Rejection: >70 dB, typical
  • RF Sensitivity: −97 dBm (at 10-5 BER
  • Audio
    • Latency: 3.2 ms
  • High-Pass / Low Cut Filter: 150 Hz @ -12 db/oct
  • Audio Frequency Response: 20 Hz– 20 kHz (+1, -2 dB)
  • Audio Dynamic Range: 118 dB (at 1% THD, A-weighted, typical)
  • Total Harmonic Distortion: <0.02%
  • System Audio Polarity: Positive pressure on microphone diaphragm produces positive voltage on pin 2 (with respect to pin 3 of XLR output) and the tip of the 6.35 mm (with respect to the ring of the 6.35 mm output) output.
  • Mic Offset Range: 0 to 21 dB (in 3 dB steps)
  • Temperature Range
    • Operating Temperature Range: -18°C (0°F) to 50°C (122°F)
    • Storage Temperature Range: -29°C (-20°F) to 74°C (165°F)
• SLXD2
  • Battery Type
    • Rechargeable Li-Ion or 1.5 V
    • AA batteries
  • Dimensions: 37.1 x 176 mm (1.46 x 6.93 in.), D x L
  • Weight: 147 g
  • Housing: Aluminum
  • Audio Input
    • Maximum Input Level: 8.2 dBV (2.57 Vrms, 7.27 Vpp)
  • RF Output
    • Antenna Type: Integrated Single Band Helical
    • Occupied Bandwidth: <200 kHz
    • Modulation Type: Shure proprietary digital
    • Power: 1 mW or 10 mW
• SLXD4
  • Dimensions 42 x 197 x 152 mm (1.65 x 7.76 x 5.98 in.), H x W x D
  • Weight: 816 g, without antennas
  • Housing: Galvanized Steel
  • Power Requirements: 15 V DC @ 600 mA, supplied by external power supply (tip positive)
  • RF Input
    • Spurious Rejection: >75 dB, typical
    • Connector Type: BNC
    • Impedance: 50 Ω
    • Phantom Power Protection
      • 1/4" (6.35 mm)
      • XLR Yes
  • Audio Output
    • Gain Adjustment Range: -18 to +42 dB (in 1 dB steps)
    • Configuration
      • 1/4" (6.35 mm): Balanced (Tip = audio +, Ring = audio -, Sleeve = ground )
      • XLR Balanced: (1=ground, 2=audio +, 3=audio −)
    • Impedance
      • 1/4" (6.35 mm): 1.3 kΩ (670 ΩUnbalanced)
      • XLR (line): 400 Ω (200 ΩUnbalanced)
      • XLR (mic): 150 Ω
    • Full Scale Output
      • 1/4" (6.35 mm): +15 dBV differentially (+9 dBV single)
      • XLR: LINE setting= +15 dBV, MIC setting= -15 dBV
    • Mic/Line Switch: 30 dB pad
  • Networking
    • Network Interface: Single Port Ethernet 10/100 Mbps
    • Network Addressing Capability: DHCP or Manual IP address
    • Maximum Cable Length: 100 m (328 ft)