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Medium-format waveguide and 60° x 40° pattern designed as the primary reinforcement source for smaller venues, or for use with other LT loudspeakers to form Coherent Zone arrays in medium to large venues.
  • Frequency Response
  • Frequency Range
  • Nominal Dispersion
  • Sensitivity
  • Nominal Impedance
Brand: Bose
Model: LT 6403

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  • Medium-format waveguide and 60° x 40° pattern designed as the primary reinforcement source for smaller venues, or for use with other LT loudspeakers to form Coherent Zone arrays in medium to large venues.
  • For indoor applications only.

Applications

  • Indoor arenas
  • Houses of worship
  • Auditoriums
  • Performing arts venues

 
Key Features

  • 60° x 40° coverage for medium-throw applications in auditoriums, worship facilities, performing arts centers, and arenas
  • Full-range loudspeaker with single 15" (381 mm) woofer provides 50 Hz bass to reduce need for additional low-frequency speakers in smaller venues
  • Bose® V2 midrange manifold sums output of 2 x 4.5" (114 mm) extended-range cone drivers for lower breakup distortion and improved transient response. Provides a smoother, more natural vocal range compared to single 8" to 12" woofers. The LT 6403 loudspeaker utilizes a single Bose V2 midrange manifold
  • Bose large-format waveguide provides effective 60° x 40° pattern control to approximately 800 Hz (horizontal) and 1.5 kHz (vertical). Minimizes loudspeaker overlap in arrays to reduce comb-filter interference and improve intelligibility

Physical

Enclosure 

  • Baltic birch plywood, 13-ply, 18 mm

Environmental 

  • Indoor use only

Connectors 

  • Two (2) parallel-wired NL4 Neutrik® Speakon® connectors

Suspension / Mounting 

  • Sixteen (16) points SAE 3/8" - 16 threaded inserts (4 each: top, bottom, sides), steel

Dimensions 

  • 34.4" H x 24.1" W x 22.6" D (873 mm x 612 mm x 575 mm)

Net Weight 

  • 148 lb (67.1 kg)

Color 

  • Black, Paintable, White (available by special order)

Package Contents 

  • 1 loudspeaker

Frequency Response (+/-3 dB) 

  • 50 Hz - 16 kHz

Frequency Range (-10 dB) 

  • 42 Hz - 18 kHz

Nominal Dispersion 

  • 60° H x 40° V

Sensitivity (SPL / 1 W @ 1 m) 

  • 96 dB SPL

Maximum SPL @ 1 m 

  • 123 dB SPL (129 dB SPL peak)

Long-Term Power Handling 

  • 500 W (2000 W peak)

Nominal Impedance 

  • 8 Ω