Cut through the Noise with the Shure BLX14R/SM35 Rack-Mount Headset Wireless System - H11 Band

The Shure BLX14R/SM35 Wireless Rack-mount Headset System combines professional-quality sound with simple setup and up to 14 hours battery life for great audio performance right out of the box. The system includes BLX4R half-rack single-channel receiver, SM35 headset microphone with BLX1 bodypack transmitter, clothing clip, power supply, 2 AA batteries, windscreens, rackmount kit, 2 1/4 wave antennas, and user guide.


  • Superior Audio - Perform with confidence using professional Shure sound for every band and any vocal need.
  • Reliable Signal - Extend your range up to 300 feet (100m) to take the show into the crowd without interruption.
  • Easy Setup – Get up and running in record time with one-touch scan and selection, owning the stage with BLX.
  • Battery Life – Enjoy up to 14 hours of power from a single pair of AA batteries, ensuring the show goes on and on.
  • Systems Expansions – Capability to run up to 12 channels per frequency band, potentially requiring a bigger stage due to the abundance of channels. Note: region and environment dependent.
  • Versatility Included – Choose from an impressive variety of Shure microphones available in BLX systems to find what best suits your needs.


SPECIFICATIONS
  • System 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: 0.5%, typical. Ref. ±33 kHz deviation with 1 kHz tone.
  • Dynamic Range: 100 dB, A-weighted, typical.
  • Operating Temperature: -18°C (0°F) to 57°C (135°F). Note: Battery characteristics may limit this range.
  • Polarity: Positive pressure on microphone diaphragm produces positive voltage on pin 2 and the tip of the high impedance 1/4-inch output.
BLX1
  • Audio Input Level: Max -16 dBV maximum, Min (0 dB) +10 dBV maximum.
  • Gain Adjustment Range: 26 dB.
  • RF Transmitter Output: 10 mW, typical. Varies by region.
  • Dimensions: 4.33 in. x 2.52 in. x 0.83 in. (H x W x D).
  • Weight: 2.6 oz. (75 g), without batteries.
  • Battery Life: Up to 14 hours (alkaline).
BLX2
  • Audio Input Level adjustments and RF Transmitter Output similar to BLX1.
  • Dimensions: 8.82 in. x 2.09 in. (L x Dia).
  • Weight: 7.7 oz. (218 g) without batteries.
  • Battery Life: Up to 14 hours (alkaline).
BLX4
  • Output Impedance: XLR connector 200 Ω, 1/4" connector 50 Ω.
  • Audio Output Level: XLR connector -27 dBV, 1/4" connector -13 dBV.
  • RF Sensitivity: -105 dBm for 12 dB SINAD, typical.
  • Dimensions: 1.57 in. x 7.40 in. x 4.06 in. (H x W x D).
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Manufacturer: Shure
Model: BLX14R/SM35-H11
SKU: I646119-GA260505-4-WHXD
UPC: 042406470483

We are Chuck Levin's Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.


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