BOSE Panaray 502 B loudspeaker

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Panaray® 502® B bass loudspeaker

Low-frequency loudspeaker designed for indoor permanent installations. The 502 B loudspeaker features patented Acoustimass® speaker technology to deliver non-localizable bass to 45 Hz. For indoor applications only.

Product Overview

Technical Summary

Frequency Response (+/-3 dB) 
50 Hz - 140 Hz

Frequency Range (-10 dB) 
45 Hz - 160 Hz

Nominal Dispersion 
Omni-directional below 200 Hz

Long-Term Power Handling 
450 W (1800 W peak)

Sensitivity (SPL / 1 W @ 1 m) 
90 dB SPL

Maximum SPL @ 1 m 
116 dB SPL (122 dB SPL peak)

Nominal Impedance 
8 Ω

Applications

  • Houses of worship
  • Auditoriums
  • Restaurants and bars
  • Hotels
  • Atriums and malls
  • Foreground music

Key Features

  • Single 12" (305 mm) woofer with Bose® patented Acoustimass® speaker technology, which reduces audible distortion and delivers non-localized bass

  • 450 W long-term and 1800 W peak power rating

  • Integrated suspension inserts allow easy permanent installations with optional rigging accessories

  • Engineered to match acoustically with the Panaray 502 A speaker systems

Physical

Enclosure 
Vinyl-wrapped, high-density wood composite

Environmental 
Indoor use only

Connectors 
Two (2) parallel-wired barrier strips

Suspension / Mounting 
Eight (8) 8 mm threaded inserts (4 top, 4 bottom), 20 mm depth

Dimensions 
31.0" H x 14.0" W x 15.5" D (787 mm x 356 mm x 394 mm)

Net Weight 
85 lb (38.6 kg)

Color 
Grey, White, Paintable

Package Contents 
1 loudspeaker

Specification

System Performance
Frequency Response (+/-3 dB) 1 50 Hz - 140 Hz
Frequency Range (-10 dB) 1 45 Hz - 160 Hz
Nominal Dispersion Omni-directional below 200 Hz
Loudspeaker EQ Required
Overload Protection 7-ampre AGC or 3AG (Littlefuse)
Long-Term Power Handling 2 450 W (1800 W peak)
Sensitivity (SPL / 1 W @ 1 m) 3 90 dB SPL
Maximum SPL @ 1 m 4 116 dB SPL (122 dB SPL peak)
Nominal Impedance 8 Ω
Transducers
Driver Compliment 12" (305 mm) woofer
Physical
Enclosure Vinyl-wrapped, high-density wood composite
Environmental Indoor use only
Connectors Two (2) parallel-wired barrier strips
Suspension / Mounting Eight (8) 8 mm threaded inserts (4 top, 4 bottom), 20 mm depth
Dimensions 31.0" H x 14.0" W x 15.5" D (787 mm x 356 mm x 394 mm)
Net Weight 85 lb (38.6 kg)
Shipping Weight 88 lb (39.8 kg)
Product Code
Grey 040090
White 040091

Footnotes:

  • Frequency response and range measured on-axis with recommended active EQ in an anechoic environment.
  • Power handling tested using pink noise filtered to meet IEC 268-5, 6 dB crest factor, 100 hours, with recommended EQ.
  • Sensitivity measured in free field (no boundary-loading gain) with recommended active EQ, referenced to 1W/1m.
  • Maximum SPL calculated from sensitivity and power handling specifications, exclusive of power compression.

Architects' & Engineers' Specifications

The low-frequency device shall be a dual-ported highly compact enclosure with matched active equalization as follows:

The transducer complement shall consist of one (1) high-power-handling driver of 12" (305 mm) diameter, mounted inside an enclosure such that distortion is minimized as a result of acoustic filtering. Its operating frequency range shall be below 160 Hz so that non-localizability shall allow a high degree of location placement flexibility.

The input connector, located on the rear of the enclosure, shall be a screw-type barrier strip.

The enclosure shall be made of vinyl-wrapped, high-density wood composite, with outer dimensions of 31.0" x 14.0" x 15.5" (787 mm x 356 mm x 394 mm); its weight shall be 85 lb (38.6 kg).

The bass enclosure’s maximum continuous acoustic output shall be 116 dB SPL from 50 Hz to 140 Hz, with measurements referenced to a full-bandwidth pink-noise input at 1 meter at the enclosure’s rated power. Its power-handling capacity shall be 450 watts continuous referenced to IEC noise for 100 hours.

The bass enclosure shall be the Bose® Panaray® 502® B Acoustimass® enclosure.

Graphs

Impedance

On-Axis Response

Polar Plots

Horizontal Plots

Vertical Plots

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