The Shure BLX4 S8 Wireless Microphone System is a 823-832MHz wireless microphone receiver. The Analog Wireless Receiver BLX4 provides improved linearity and frequency response for up to 12 compatible channels per group with group and channel scan for easy set-up. Up to 12 compatible channels per group with group and channel scan for easy set-up, allows up to 12 musicians to attach to this receiver at once. The internal antennas on the BLX receiver are already set in an ideal way, offering up to 100 m operating range and optimal signal strength. Additionally internal antennas cannot be broken during setup, use or transport. With one button you can start the group and channel scan, which gives you the best open frequency. Adjust the transmitter to the same channel and you're ready to go. The frequency response of the wireless microphone is almost identical to the frequency response of a wired mic. Also the dynamic performance is almost the same.

The main features of the Shure BLX4 S8 Wireless Microphone System include:

• Up to 12 compatible systems
• Microprocessor-controlled internal antenna diversity
• One touch QuickScan locates the best open frequency
• 1/4" and XLR audio outputs
• Two colour audio status indicator LED
• Output Impedance:
  • XLR connector 200 Ω
  • 6.35 mm (1/4") connector: 50 Ω
• Audio Output Level Ref. ±33 kHz deviation with 1 kHz tone:
  • XLR connector -27 dBV (into 100 kΩ load)
  • 6.35 mm (1/4") connector -13 dBV (into 100 kΩ load)
• RF Sensitivity: 105 dBm for 12 dB SINAD, typical
• Image Rejection: >50 dB, typical
• Dimensions: 40 mm X 188 mm X 103 mm (H x W x D)
• Weight: 241 g
• Housing: Molded ABS
• Power Requirements: 12-15 V DC @ 160 mA, supplied by external power supply (tip positive)