Shure BLX288 Dual BETA58 Vocal System J11 Frequency

The Shure BLX288/B58 is a cost-effective wireless handheld microphone system for two presenters, teachers, or lecturers which offers quality sound, simple setup, and dependable performance right out of the box. It includes the compact and lightweight BLX88 dual-channel tabletop receiver with internal antennas, ideal for portable use.

The BLX288/B58 also includes two handheld transmitters, each equipped with an integrated Beta 58A dynamic supercardioid microphone capsule. The receiver features one-touch QuickScan frequency selection to quickly search 82 available frequencies and locate a clean RF channel in case of interference. The system provides up to 14 hours of continuous use with four 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 live performances and events in small venues, wedding halls, and houses of worship as well as conference, educational, and corporate facilities.

Beta 58A Mic Capsules Optimized for Vocals and Speech

The Beta 58A dynamic capsules are optimized for crisp, present vocals with a brightened midrange and bass roll-off to control the proximity effect. Each capsule features a neodymium magnet for heightened sensitivity and high output as well as a tight supercardioid polar pattern that greatly minimizes background noise and feedback. The dent-resistant steel mesh grille resists wear and abuse. The built-in pop filter reduces undesirable wind and breath noise for clear and intelligible speech.

Lightweight Handheld Transmitters

The durable BLX2 handheld transmitters offer a lightweight, ergonomic design, and are comfortable to hold. Group- and channel-selection buttons allow for quick and simple frequency matching with the receiver. Other features include an easily accessible on/off button, adjustable gain control, and a black identification cap. The WA621 Color ID Caps kit containing assorted colored caps is available as an optional accessory.

Easy-to-Use Dual-Channel Tabletop Receiver for Quality Audio

The BLX88 receiver employs a microprocessor-controlled internal antenna diversity feature to improve the quality and reliability of your wireless audio. Two LED displays show group and channel settings, while four LED lights indicate when the system is ready for use and the strength of the incoming audio signal. The unit offers two 1/4" and two XLR outputs for connectivity to PA systems and mixing boards.

A Versatile System to Meet Your Needs

Shure offers a BLX1 bodypack transmitter compatible with a variety of lavalier, instrument, and headset microphone options to adapt your BLX system as your needs evolve.

The discrete MX153 subminiature earset mic and the CVL lavalier mic both provides exceptional clarity in spoken word applications.
The PGA31 is a comfortable, durable headset microphone for active performance.
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.

Specifications

Wireless Technology

Analog UHF

Number of RF Channel Frequencies

Included Transmitters

2 x Handheld

Diversity

Antenna Diversity

RF Frequency Band

J11: 596 to 616 MHz

RF Bandwidth

20 MHz

RF Channel Scanning

Auto-Scan

Max Operating Range

300' / 91.4 m (Line of Sight)

Max Transmitters per Band

Dynamic Range

100 dBA

Receiver

Receiver Type

Tabletop

Antenna

2 x Internal

Number of Audio Channels

Audio I/O

2 x XLR 3-Pin Male Balanced Output
2 x 1/4" TRS Female Unbalanced Output

Audio Output Level

XLR Outputs: -27 dBV (Mic Level)
1/4" Outputs: -13 dBV (Instrument Level)

Frequency Response

50 Hz to 15 kHz (Dependent on Mic)

Impedance

XLR Outputs: 200 Ohms
1/4" Outputs: 50 Ohms

Power Requirements

AC/DC Power Adapter

AC/DC Power Adapter

12 to 15 VDC at 160 mA, Center-Positive (Included)

Display & Indicators

2 x Multi-Segment LED (Channel, Group)
4 x LED (AF Level, Sync)

Housing

Operating Temperature

0 to 135°F / -17 to 57°C

Dimensions

12.1 x 1.6 x 4" / 308 x 40 x 101 mm

Weight

15.1 oz / 429 g

Transmitter

Transmitter Type

Handheld

RF Output Power

10 mW

Audio I/O

None

Muting

Off/On Switch

Gain Range

-20 to -10 dB

Sync Method

Manual

Antenna

1 x Internal (Handheld)

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

Dimensions

2.1 x 8.8" / 53.3 x 223.5 mm

Weight

7.7 oz / 218 g (without Batteries)

Microphone

Microphone Type

Handheld Capsule

Sound Field

Mono

Capsule

Dynamic

Polar Pattern

Supercardioid

Frequency Range

50 Hz to 16 kHz

Sensitivity

-51.5 dBV/Pa at 1 kHz

Packaging Info

Package Weight

5.01 lb

Box Dimensions (LxWxH)

19.2 x 16.2 x 3.4"

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Shure BLX288 Dual BETA58 Vocal System J11 Frequency