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Shure BLX14R/W85 Wireless Lavalier System

The Shure BLX14R/W85 Wireless Lavalier System is a Lavalier wireless system with bodypack and rackmount receiver. The Shure BLX14R/W85 Wireless Lavalier System contains the BLX4R rackmount receiver, a BLX1 bodypack and a WL185 lavalier microphone. WL185 The WL185 premium cardioid lavalier microphone brings a new level of sophistication to personal voice reproduction. Like all Microflex family microphones, this lavalier uses an interchangeable condenser cartridge, meaning there will always be a lavalier to suit your application. BLX1 The BLX1 bodypack transmitter works with lavalier and headset microphones, and also has an input for guitar. It features an On/Off hard toggle switch, preferring to eliminate the multi-function puSHbutton that is used on some wireless transmitters. BLX4R The BLX4R is a half-rack sized wireless receiver built into a rugged chassis that mounts into any standard 19" road rack. It features advanced capabilities usually unavailable in wireless systems in this price range.



  • BLX4R Rack mount receiver
  • WL185 Lavalier microphone
  • BLX1 Bodypack transmitter
  • Single rackmount kit
  • Dual rackmount kit
  • Two 1/4-wave antennas
  • Power supply
  • 2 AA batteries
  • Zipper bag
  • DOWNLOAD User guide



BLX4R Reciever:

Output 1x XLR Output 1x 1/4" (6.35 mm) Output
Output Impedance XLR: 200 ? 1/4": 50 ?
Audio Output Level XLR Connector: -20.5 dBV into 100k? Load (Reference /-33 kHz with 1 kHz Tone) 1/4": -13 dBV into 100k? Load (Reference /-33 kHz with 1 kHz Tone)
RF Sensitivity -105 dBm for 12 dB SINAD, Typical
Image Rejection >50 dB, Typical
Housing Molded ABS, Steel
Power Requirement 12 to 15 V DC @ 260 mA, Supplied by External Power Supply (Tip Positive)
Dimensions (H x W x D) 1.9 x 7.7 x 6.4" (50 x 198 x 163)
Weight 2.2 lb (998 g)

WL185 Condenser Lavalier Microphone

Audio Input Gain: -16 dBV (Maximum), 10 dBV (Minimum
Gain Adjustment Range 26 dB
Input Impedance 1 M?
RF Output 10 mW, Typical
Housing Molded ABS
Power Requirement 2x LR6 AA Batteries, 1.5 V Alkaline
Battery Life Up to 14 Hours
Dimensions (H x W x D) 4.3 x 2.5 x 0.8" (110 x 64 x 21 mm)
Weight 2.6 oz (75 g)

BLX1 Bodypack Transmitter

Transducer Electret Bias
Polar Pattern Cardioid
Frequency Response 50Hz to 17kHz
Dynamic Range (Typical) 102dB
Signal-to-Noise Ratio 18dB SPL (A-weighted)
Maximum Input Sound Level 130dB
Power Requirements Regulated Nominal 5 Vdc (2 Vdc to 10 Vdc)
Output Impedance 28 ohms
Output Connectors TA4-Female
Pad No
Low Frequency Roll-Off No
Dimensions Cable length: 4 foot (1.2 meter)