Comfortable Headset Microphone Optimized for Speech and Vocals

The Shure BLX14/PGA31 brings presenters, instructors, clergy, multi-instrumentalists, and live performers a cost-effective wireless headset microphone system with quality sound, simple setup, intuitive operation, and dependable performance right out of the box. It includes the compact and lightweight BLX4 single-channel tabletop receiver with internal antennas, ideal for portable use.

The BLX14/PGA31 also includes a PGA31 cardioid headset mic with windscreen and a bodypack transmitter. The headset's wearable design offers both comfort and a secure fit for hands-free operation. The receiver features one-touch QuickScan frequency selection to quickly search 123 available frequencies and locate a clean RF channel in case of interference. The system provides up to 14 hours of continuous use with two AA batteries, at a range up to 300'. Up to 12 mic channels can operate simultaneously in each frequency band.

This streamlined system is well suited for speech and vocal performance in small music venues, wedding halls, and houses of worship, as well as conference, educational, and corporate facilities.



The PGA31 headset condenser microphone is built for comfort and clear vocal reproduction. It features a cardioid polar pattern that helps reject unwanted noise, and a tailored frequency response optimized for speech intelligibility. The flexible gooseneck design with discrete adjustment options let you position the microphone for further source isolation in loud environments.



Lightweight Bodypack Transmitter

The durable BLX1 bodypack transmitter offers a lightweight, ergonomic design that is comfortable for the presenter to wear. Group and channel selection buttons allow for quick and simple frequency matching with the receiver. Other features include an easily accessible on/off switch, adjustable gain control, and a TA4M 4-pin input jack.



Easy-to-Use Tabletop Receiver for Quality Audio

The BLX4 receiver employs microprocessor-controlled internal antenna diversity to improve the quality and reliability of your wireless audio. An LED display shows group and channel settings, while two LED lights indicate when the system is ready for use and the strength of the incoming audio signal. The unit offers 1/4" and XLR outputs for connectivity to PA systems and mixing boards.



A Versatile System to Meet Your Needs

Shure offers a variety of lavalier, instrument, headset, and handheld microphone options to adapt your BLX system as your needs evolve.

• The discrete MX153 sub-miniature earset mic provides exceptional clarity in spoken word applications.


• For fitness instructors, the SM31FH is a rugged, moisture-repelling headset microphone designed to stay secure and comfortable during active performances.


• The CVL lavalier mic offers low visibility and clear vocal reproduction for discreet applications.


• Instrumentalists can attach the WB98H/C flexible gooseneck instrument microphone for brass, woodwind, and percussion applications.


• The WA302 guitar cable lets you connect the bodypack transmitter to a guitar or bass.


• The BLX2 handheld transmitter is available with three different mic capsules for presenters who prefer the flexibility of a handheld microphone.


• For Presenters and Performers


• PGA31 Cardioid Headset Mic


• Lightweight Bodypack Transmitter


• Single-Channel Tabletop Receiver

Wireless Transmission	Analog UHF
Number of RF Channels	123
Included Transmitters	1 x Bodypack
Diversity	Antenna Diversity
RF Frequency Band	J10: 584 to 608 MHz
RF Bandwidth	24 MHz
RF Channel Scanning	Auto-Scan
Max Operating Range	300' / 91.4 m (Line of Sight)
Max Systems per Setup	12
Dynamic Range	100 dBA

Receiver

Form Factor	Tabletop
Antenna	2 x Internal, Fixed
Number of Audio Channels	1
Audio I/O	1 x XLR 3-Pin Male Balanced Output 1 x 1/4" TS Female Unbalanced Output
Audio Output Level	XLR Output: -27 dBV (Mic Level) 1/4" Output: -13 dBV (Instrument Level)
Frequency Response	50 Hz to 15 kHz (Dependent on Mic)
Impedance	XLR Output: 200 Ohms 1/4" Output: 50 Ohms
Power Requirements	AC/DC Power Adapter
AC/DC Power Adapter	12 to 15 VDC at 160 mA, Center-Positive (Included)
Display & Indicators	1 x Multi-Segment LED (Channel, Group) 2 x LED (AF Level, Sync)
Housing	ABS
Operating Temperature	0 to 135°F / -17 to 57°C
Dimensions	7.4 x 1.6 x 4.1" / 188 x 40 x 103 mm
Weight	8.5 oz / 241 g

Transmitter

Form Factor	Bodypack
RF Output Power	10 mW
Audio I/O	1 x TA4/Mini XLR 4-Pin Male Input (Lockable)
Muting	Off/On Switch
Auto-Level Control	No
Gain Range	-16 to +10 dB
Sync Method	Manual
Antenna	1 x Flexible Whip, Fixed (Beltpack)
Power Requirements	Battery
Battery Type	2 x AA (Included)
Approx. Battery Life	14 Hours (Alkaline)
Display & Indicators	1 x Multi-Segment LED (Channel, Group) 1 x LED (Battery Status, Power)
Housing	ABS
Dimensions	2.5 x 4.3 x 0.8" / 64 x 110 x 21 mm
Weight	2.6 oz / 75 g (without Batteries)

Microphone

Form Factor	Headset
Sound Field	Mono
Capsule	Electret Condenser
Polar Pattern	Cardioid
Frequency Range	60 Hz to 20 kHz
SNR	66 dB
Equivalent Noise Level	28 dB
Maximum SPL	145 dB SPL
Impedance	600 Ohms
Dynamic Range	117 dB
Output Connectors	1 x TA4/Mini XLR 4-Pin Female (Lockable)
Cable Length	4.27' / 1.3 m
Operating Voltage	5 V
Weight	1.59 oz / 45 g

Packaging Info

Package Weight	2.95 lb / 1.34 kg
Box Dimensions (LxWxH)	13.5 x 12.1 x 4"