Description
The BLX14R/SM35 Headworn Wireless System is part of the BLX wireless systems family. Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage.
It includes BLX4R rack mount receiver, BLX1 bodypack transmitter, SM35 headset microphone, power supply, clothing clip, windscreens, rack mount hardware, and user guide.
BLX1 Bodypack Transmitter
The durable BLX1 features a lightweight, ergonomic design and adjustable gain control. For use with BLX Wireless Systems. It supports up to 14 hours of continuous use with 2 AA batteries. 300 ft (100 m) transmission radius.
Features
- Quick and easy receiver frequency matching
- TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables
- Easily accessible On / Off switch
BLX4R Rack Mount Receiver
Rack-mountable and featuring rugged metal construction, the BLX4R offers simple setup and intuitive controls. One-touch QuickScan frequency selection quickly locates the best open frequency in case of interference. Removable antennas allow for quick antenna distribution. For use with BLX Wireless Systems. Rack mount kit is included.
Features
- XLR and ¼" output connectors
- Microprocessor-controlled internal antenna diversity
- Two-color audio status indicator LED
- Green: Normal audio levels
- Red: Excessive audio levels (overload / clipping)
- Adjustable output level
- LCD display with detailed RF and audio metering
SM35 Performance Headset Condenser Microphone
The SM35 Performance Headset Condenser Microphone gives multi-instrumentalists the freedom to express themselves without sacrificing sound quality. A tight, unidirectional cardioid polar pattern provides excellent rejection of off-axis sound sources to prevent feedback and signal bleed onstage, whether in use in small clubs, large installations, or arena tours. Available in standard TA4F (TQG) connectivity, the SM35 seamlessly integrates into any Shure wireless headset system.
Features
- Headset microphone ideal for multi-instrumentalists in live vocal performance
- Condenser cartridge with cardioid polar pattern
- Wireframe headset fits securely and comfortably for active performers and multi-instrumentalists
- Tight, unidirectional cardioid polar pattern rejects signal bleed and feedback for use on loud stages and behind floor monitors
- Flexible gooseneck design allows for optimized placement that further improves source isolation
- Lightweight and low-profile form enables comfortable, long-wearing use
- TA4F (TQG) connector is compatible with any Shure wireless bodypack
- Locking snap-fit windscreens tame plosives, breath, and wind noise for clean and intelligible sound
- Tailored frequency response refined for clear, crisp vocal reproduction
- Included in BLX and GLX-D wireless systems, renowned for their ease of use and reliable performance
- Legendary Shure precision engineering for durability and performance
Specifications
Overall System Specifications
- Operating Range: 300 ft (91 m) line of sight
(actual range depends on RF signal absorption, reflection and interference) - Available Frequencies: Between 524 – 865 MHz
(available frequencies depend on applicable regulations in country where system used) - Audio Range: 50 – 15,000 Hz
(dependent on microphone type) - Transmitter RF Output Power: 10 mW, typical (varies by region)
- Audio Output Connector: XLR and 1/4" (6.3 mm) unbalanced
- Maximum Output Level: -27 dBV (XLR, mic level), -13 dBV (1/4")
- Battery Life: Up to 14 hours
- Dynamic Range: 100 dB A-weighted
- System Distortion: 0.5% THD typical
(ref. +/- 38 kHz deviation, 1 kHz tone) - Operating Temperature Range: -18°C (0°F) – +50°C (122°F)
BLX1 Bodypack Transmitter
- Audio Input Level
- Gain max -16 dBV maximum; min (0 dB) +10 dBV maximum
- Gain Adjustment Range 26 dB
- Input Impedance 1 MΩ
- RF Transmitter Output 10 mW, typical (varies by region)
- Dimensions 110 mm x 64 mm x 21 mm (H x W x D)
- Weight 75 g (2.6 oz.), without batteries
- Housing Molded ABS
- Power Requirements 2 LR6 AA batteries, 1.5 V, alkaline
- Battery Life up to 14 hours (alkaline)
BLX4R Rack Mount Receiver
- 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 –20.5 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 50 mm X 198 mm X 163 mm H x W x D
- Weight without antennas 998 g (2.2 lb.)
- Housing Molded ABS, steel
- Power Requirements 12–15 V DC @ 260 mA, supplied by external power supply (tip positive)
SM35 Performance Headset Microphone
- Type Electret Condenser
- Frequency Response 40 Hz to 20,000 Hz
- Polar Pattern Unidirectional (Cardioid)
- Output Impedance @ 1 kHz 2400 Ω
- Audio Output Level -59.0 dBV/Pa
- Signal-To-Noise Ratio @ 1 kHz 55 dB
- Maximum SPL 1000 Ω load, @ 1% THD 153.0 dB
- Dynamic Range @ 1 kHz, 1000 Ω load 114.0 dB
- Equivalent Output Noise Typical, A-Weighted 39 dB
- Power Requirements +5 V DC (nominal), 10 V maximum (DC bias)
- Polarity Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1
- Cable 1.1 m (45 in.)
- Connector TA4F
- Net Weight 72 g (2.53 oz.)
