Overview

Wireless that works as hard as you do. The SLXD124+/85M system brings wireless freedom, system control, and world-class Shure audio to all your performance, broadcast, and location sound events. Standing on the shoulders of Shure's venerable SLXD platform, the SLXD+ carries the torch of trouble-free wireless audio production forward.

Its 24-bit digital audio engine captures every detail with transparent precision using the full 118 dB dynamic range to produce a faithful reproduction of any source. RF performance stays locked in, even when the spectrum gets crowded, thanks to ShowLink®, your invisible assistant that scans, updates, and manages interference before you even notice. And with mobile monitoring, your phone is your command center, giving you oversight from anywhere in the venue.

Inside the case: the SLXD4+ receiver, an SLXD1+ bodypack with WL185m lavalier for discreet speech, and an SLXD2+/58 handheld with the iconic SM58® capsule, a voice that’s defined stages for decades. Each piece is engineered for resilience, from the reinforced connectors to the low-profile lavalier that resists sweat and makeup. Every detail speaks of reliability, every feature is designed for the realities of live production.

Applications

• Event, Presentation and Speech
• House of Worship
• Performance and Clubs
• Videography and Location Sound
• Electronic News Gathering (ENG) and Broadcast

Features

• 24-bit digital audio with >118 dB dynamic range
• >118 dB dynamic range and 2.8ms latency
• 138 MHz wide-tuning range for greater
• geographical coverage
• Up to 11 compatible systems per 6MHz TV band;
• 14 systems per 8 MHz band
• ShowLink® Ease for remote control and management of transmitter wireless parameters from the mix
• position and elsewhere
• Patented Shure Digital Feedback Reducer software embedded in every SLX-D+ receiver
• AES-256 Encryption included, for complete
• and secure peace of mind
• Portable receiver & plug-on transmitter options
• Single, Dual, and Quad rack receiver options; bodypack and handheld transmitter options
• Remote control via WWB mobile app for SLXD4+, SLXD4D+, SLXD4Q+, SLXD4QDAN+, and SLXD5+
• Up to 8 hours from 2 AA batteries or optional Shure SB903 rechargeable battery

Specifications

• System
  • RF Carrier Frequency Range: 470–937.5 MHz Varies by Region. See Frequency Range and Output Power Table.
  • Working Range: 100 m (328 ft) Note: Actual range depends on RF signal absorption, reflection and interference.
  • RF Tuning Step Size
  • JB Band: 125 kHz
  • All Other Bands: 25 kHz
  • Varies by region.
  • Image Rejection: >85 dB typical
  • RF Sensitivity: −97 dBm at 10-5 BER
• AUDIO
  • Latency: 2.8 ms
  • High-Pass/Low Cut Filter: 160 Hz, –12 dB/octave Note: factory default is for the HPF to be off
  • Audio Frequency Response: 20 Hz–20 kHz (+1, −2 dB)
  • Audio Dynamic Range A-weighted, 20 Hz–20 kHz, typical: 118 dB @1% THD
  • Total Harmonic Distortion: <0.02%
• System Audio Polarity
  • XLR: Positive pressure on microphone diaphragm produces positive voltage on pin 2 with respect to pin 3 of XLR output.
  • TRS: Postive pressure on microphone diaphragm produces positive voltage on thetip of the 6.35 mm (1/4-inch) with respect to the ring of the 6.35 mm output.
• Mic Offset Range: 0 to 21 dB (in 3 dB steps)
• TEMPERATURE RANGE Note: Battery characteristics may limit this range.
  • Operating Temperature Range: 0 °F to 122 °F (−18 °C to 50 °C)
  • Storage Temperature Range: −20 °F to 165 °F (−29 °C to 74 °C)
• SLXD4+
  • RF INPUT
    • Spurious Rejection: >75 dB Typical
    • Connector Type: BNC
    • Impedance: 50 Ω
  • 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): 1.1 kΩ (550 Ω Unbalanced)
      • XLR (line): 500 Ω (250 Ω Unbalanced)
      • XLR (mic): 150 Ω
    • Full Scale Output
      • 1/4" (6.35 mm): +18 dBV differentially (+12 dBV single)
      • XLR (LINE setting): +18 dBV
      • XLR (MIC setting): –12 dBV
    • Mic/Line Switch: 30 dB pad
    • Phantom Power Protection
      • 1/4" (6.35 mm): Yes
      • XLR: Yes
  • NETWORKING
    • Network Interface: Single Port Ethernet 10/100 Mbps
    • Network Addressing Capability: DHCP or Manual IP address
    • Maximum Cable Length: 100 m (328 ft)
• SLXD1+
  • Battery Type: Rechargeable Li-Ion or 1.5 V AA batteries
  • Dimensions (H × W × D): 3.86 × 2.68 × 1.0 in (98 × 68 × 25.5 mm)
  • Weight: 3.1 oz (89 g)
  • Housing: PC/ABS
  • AUDIO INPUT
    • Connector: 4-Pin male mini connector (TA4M)
    • Configuration: Unbalanced
    • Impedance: 1 MΩ
    • Maximum Input Level: 8.2 dBV (2.57 Vrms, 7.27 Vpp)
    • Preamplifier Equivalent: Input Noise (EIN) –118 dBV
  • RF OUTPUT
    • Antenna Type: 1/4 Wave
    • Occupied Bandwidth: <200 kHz
    • Modulation Type: Shure Propietary Digital
    • Power: 1 mW/10 mW Varies by region.