Shure BLX24/B58-J11 Vocal System with BLX4 Wireless Receiver & Handheld Transmitter with BETA 58A Vocal Microphone - J11 Band



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Making the jump to wireless should be liberating, not challenging. Shure BLX Wireless Systems combine professional quality sound with simple setup and an intuitive interface for performance you can trust right out of the box. Precision built and available in a variety of handheld, lavalier, instrument and headset configurations, it's the most accessible way to own the stage. Analog wireless receiver provides improved linearity and frequency response with group and channel scan for easy set-up. Features include microprocessor internal antenna diversity, frequency QuickScan, and two-color audio status indicator LED. The durable BLX4 features simple setup, intuitive controls, and microprocessor-controlled internal antenna diversity. One-touch QuickScan frequency selection quickly locates the best open frequency in case of interference. For use with BLX Wireless Systems.

The Beta 58A dynamic vocal microphone is precision-engineered for live performance and project studio recording. A tailored frequency response accentuates vocals, and the supercardioid pattern isolates from other sound sources. It combines simple setup and an intuitive interface for performance you can trust. Big sound. Full sound. Sophisticated sound. Is your mic living up to the power of your vocal? For decades, the BETA 58A has been through the ringer, pushing voice to the forefront on the biggest stages in the world. For sound that commands the attention of the entire crowd, this is your microphone. On stage or in studio, the BETA 58A is made for refined voice. The brightened midrange and bass roll off give lead and background vocals a mighty presence in the mix. And the supercardioid pattern works harder to isolate your sound from every other source in the air. You could say it's a singer's best friend. No worse for wear, the hardened steel mesh grille stands up to some of the roughest sweat drips, mic drops, and van rides without so much as a dent to show for it. The neodymium magnet provides higher output, so you get more of the sound you want and leave the rest in the background. A worldwide star, the BETA 58A is a top-selling single element dynamic microphone and can be seen every night, on stages all around the globe.

Shure BLX24/B58 Wireless Vocal System Features:

  • Up to 12 compatible systems per frequency band (region dependent.)
  • Microprocessor-controlled internal antenna diversity.
  • One-touch QuickScan frequency selection quickly locates the best frequency.
  • 1/4" and XLR audio outputs.
  • Two color audio status indicator LED.
  • Green: Normal audio levels.
  • Red: Excessive audio levels (overload / clipping.)
  • Power and battery status LED.
  • Adjustable gain control.
  • Quick & easy frequency matching.
  • 2 AA batteries provide up to 14 hours of continuous use.
  • 300 feet (91 m.)
  • Premier live performance Beta 58A dynamic vocal microphone with Shure quality, ruggedness, and reliability.
  • Uniform supercardioid pick-up pattern for maximum gain before feedback and superior rejection of off-axis sound.
  • Tailored frequency response specifically shaped for vocals, with brightened midrange and bass roll off to control proximity effect.
  • Neodymium magnet for greater sensitivity and higher output.
  • Advanced pneumatic shock mount system that minimizes transmission of mechanical noise and vibration.
  • Dent-resistant steel mesh grille and enamel coated die-cast metal construction resist wear and abuse.
  • Effective built-in pop filter reduces undesirable wind and breath noise.

Shure BLX24/B58 Specifications:

Working Range: 91 m (300 ft) Line of Sight (Actual range depends on RF signal absorption, reflection and interference.)
Audio Frequency Response: 50 to 15,000 Hz (Dependent on microphone type)
Total Harmonic Distortion (Ref. ±33 kHz deviation with 1 kHz tone): 0.5%, typical
Dynamic Range: 100 dB, A-weighted, typical
Operating Temperature: -18°C (0°F) to 57°C (135°F) (Battery characteristics may limit this range.)
Polarity: Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low-impedance output) and the tip of the high impedance 1/4-inch output.

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: –27 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: 1.57 in. X 7.40 in. X 4.06in. (40 mm X 188 mm X 103 mm) H x W x D
Weight: 8.5 oz. (241 g)
Housing: Molded ABS
Power Requirements: 12–15 V DC @ 235 mA (BLX88, 320 mA), supplied by external power supply (tip positive)

Beta 58A
Type: Dynamic (moving coil)
Frequency Response: 50 to 16,000 Hz
Polar Pattern: Supercardioid
Output Impedance: EIA rated at 150 Ω (290 Ω actual)
Sensitivity at 1kHz, open circuit voltage: -51.5 dBV/Pa (2 .6 mV)[1]
Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Weight (Net): 0.278 kg (0.62 lbs)
Connector: Three-pin professional audio (XLR), male, balanced
Housing: Silver blue enamel-painted die cast metal with hardened, matte-finished steel mesh grille

[1] 1 Pa=94 dB SPL

Each BLX24/B58 Retail Box Includes:

(1) Shure BLX4 Wireless Receiver
(1) Shure Beta 58A Microphone
(1) A25D Adjustable Stand Adapter
(1) 95D16526 Carrying Case
(1) WA371 Swivel Adapter
(1) PS24 Power Supply
(1) 31B1856 Thread Adapter
(1) User Guide

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