Shure SLXD4Q+ (K55) 4-Channel Wireless Receiver

• Four channels in one rack space
• Wide 138 MHz tuning range
• 32 available channels per frequency band (region dependent)
• Transparent 24-bit digital audio
• 118 dB dynamic range
• Audio Summing matches receiver output to available mixer channels (4,3,2 or 1)
• 4 XLR and 4 1/4" outputs and 2 local ethernet connections
• RF Cascade creates an 8-channel system by linking two SLXD4Q+ together with a single Ethernet cable, no other accessories are required
• Bias Voltage power supply management
• Digital predictive switching diversity
• Easy pairing of transmitters and receivers over scan and IR sync
• Up to 8 hours from 2 AA batteries or optional Shure SB903 rechargeable battery
• Rugged metal construction

System Specifications

• 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)
  • 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: 3.2 ms
  • 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 the
    • tip of the 6.35 mm (1/4-inch) with respect to the ring of the 6.35 mm output.
• Temperature 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)

Product Specifications

• RF Input
  • Spurious Rejection: >75 dB Typical
  • Connector Type: BNC
  • Impedance: 50 Ω
  • Bias Voltage: 15 V DC, 150 mA maximum, per antenna switchable on-off
• Audio Output
  • Audio Frequency Response: 20 Hz- 20 kHz (+1, -2 dB)
  • 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 ΩUnbalanced)
    • XLR (line): 500 Ω (250 Ω Unbalanced)
    • XLR (mic): 150 Ω
  • Full Scale Output:
    • 1/4" (6.35 mm): +12 dBV Unbalanced
    • (+18 dBV Balanced)
    • 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
• Cascade Output
  • Connector Type: BNC Note: For connection of one additional receiver in the same band
  • Configuration: Unbalanced
  • Impedance: 50Ω
  • Insertion Gain: 0-2 dB, typical
• Networking
  • Network Interface: 20 Hz- 20 kHz (+1, -2 dB)
  • Network Addressing Capability: DHCP or Manual IP address
  • Maximum Cable Length: 100 m (328 ft)
• General
  • Dimensions (H x W x D): 1.65 x 15.47 x 5.98 in. (42 x 393 x 152 mm)
  • Weight: 1750 g without antennas
  • Housing: Galvanized Steel
  • Power Requirements: 15 V @ 0.9