Shure BLX14R/MX53 Wireless Rackmount Presenter System BLX4R/MX153 K3E

BLX4R Receiver Features

• One-touch QuickScan frequency selection quickly locates the best open frequency (in case of interference)
• Up to 12 compatible systems per frequency band (region-dependent)
• XLR and ¬º‚Äù output connectors
• Two-colour audio status indicator LED
• Green: Normal audio levels
• Red: Excessive audio levels (overload/clipping)
• Adjustable output level
• Removable antennas for quick antenna distribution
• LC Display with detailed RF and audio metering

BLX1 Bodypack Features

• For use as part of BLX and BLX-R Analogue Wireless Systems
• Power and battery status LED
• Adjustable gain control
• Quick and easy frequency matching
• AA batteries provide up to 14 hours of continuous use
• 100 m (300 ft.) operating range (line of sight)

MX153 Earset Features

• Subminiature, omnidirectional cartridge offers superior speech clarity and enhanced plosive protection with no proximity effect
• Terminated with TQG/TA4F connector for direct connectivity to Shure wireless bodypack transmitters
• Ultra-lightweight, comfortable, flexible design is stable and easy to place over either ear
• CommShield¬Æ Technology guards against interference from cellular RF devices and digital bodypack transmitters
• Reinforced, attached soft flex cable
• Matte tan finish
• Includes protective storage pouch, 3 windscreens, and collar clip

System Specifications

• Working Range: 91 m (300 ft) Line of Sight Note: Actual range depends on RF signal absorption, reflection and interference.
• Audio Frequency Response: 50 to 15,000 Hz Note: Dependent on microphone type
• Total Harmonic Distortion: Ref. ¬±33 kHz deviation with 1 kHz tone 0.5%, typical
• Dynamic Range: 100 dB, A-weighted, typical
• Operating Temperature: -18¬∞C (0¬∞F) to 57¬∞C (135¬∞F)
• Polarity: Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low-impedance output) and the tip of the high impedance 1/4-inch output.

BLX4R Specifications

• Output Impedance
  • XLR connector: 200 Œ©
  • 6.35 mm (1/4") connector: 50 Œ©
• Audio Output Level Ref. ¬±33 kHz deviation with 1 kHz tone:
  • XLR connector: ‚Äì20.5 dBV (into 100 kŒ© load)
  • 6.35 mm (1/4") connector: ‚Äì13 dBV (into 100 kŒ© load)
• RF Sensitivity: -105 dBm for 12 dB SINAD, typical
• Image Rejection: >50 dB, typical
• Dimensions: 1.65 in. X 7.80 in.X 6.42 in. (42 mm X 198 mm X 163 mm) H x W x D
• Weight without antennas: 2.2 lbs (998 g)
• Housing: Molded ABS, steel
• Power Requirements: 12‚Äì15 V DC @ 260 mA, supplied by external power supply (tip positive)

BLX1 Bodypack Specifications

• Audio Input Level
  • max: -16 dBV maximum
  • min (0 dB): +10 dBV maximum
• Gain Adjustment Range: 26 dB
• Input Impedance: 1 MŒ©
• RF Transmitter Output: 10 mW, typical (varies by region)
• Dimensions: 4.33 in. X 2.52 in. X 0.83 in. (110 mm X 64 mm X 21 mm) H x W x D
• Weight: 2.6 oz. (75 g), without batteries
• Housing: Molded ABS
• Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline
• Battery Life: up to 14 hours (alkaline)

MX153 Earset Specifications

• Transducer Type: Electret Condenser
• Polar Pattern: Omnidirectional
• Frequency Response: 20 to 20,000 Hz
• Output Impedance: N/A
• Sensitivity open circuit voltage, @ 1 kHz, typical: -41 dBV/Pa [1] (9 mV/Pa)
• Maximum SPL: 1 kHz at 1% THD
• 2500 Œ© load: 107 dB SPL
• 1000 Œ© load: 107 dB SPL
• Signal-To-Noise Ratio: 60 dB
• Dynamic Range @ 1 kHz:
• 2500 Œ© load: 73 dB
• 1000 Œ© load: 73 dB
• Self Noise equivalent SPL, A-weighted, typical: 34 dB
• Common Mode Rejection: 20 to 20,000 Hz
• Operating Temperature Range: -18¬∞C (0¬∞F) to 57¬∞C (135¬∞F)
• Polarity: Positive pressure on diaphragm produces negative voltage on pin 3 with respect to pin 1.
• Power Requirements: +1‚Äì5 V DC (500 ¬µA max.)
• Weight: 19.76 g