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Bose LT6403
Full Range Speaker, 500 W, White


The Bose LT 6403 is a full-range 3-way loudspeaker designed as the primary reinforcement source for smaller venues...
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Bose LT6403
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The Bose LT 6403 is a full-range 3-way loudspeaker 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. The large-format waveguide and 60° x 40° pattern deliver precise coverage and high intelligibility, providing a cost-effective alternative to multiple-cabinet line arrays for many applications.

Bose LT6403 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 insmaller venues
  • Bose® V2 midrange manifold sums output of 2 x 4.5"(114 mm) extended-range cone drivers for lower breakup distortion and improvedtransient response. Provides a smoother, more natural vocal range compared tosingle 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

Bose LT6403 Specifications:

  • Frequency Response (+/-3 dB) 1 50 Hz - 16 kHz
  • Frequency Range (-10 dB) 1 42 Hz - 18 kHz
  • Nominal Dispersion 60° H x 40° V
  • Sensitivity (SPL / 1 W @ 1 m) 2 96 dB SPL
  • Maximum SPL @ 1 m3 123 dB SPL (129 dB SPL peak)
  • Crossover Type Passive, Bi-Amp, Switchable
  • Crossover Frequency 300 Hz and 1.8 kHz passive, 300Hz bi-amp
  • Recommended High-Pass Filter 40 Hz with 4th order filter (24 dB / octave)
  • Loudspeaker EQ Recommended
  • Enclosure Baltic birch plywood, 13-ply, 18 mm
  • Finish Polyurethane-based textured paint, black or white
  • Grille 16-gauge perforated steel grille with powder-coated finish
  • 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 612mm x 575 mm)
  • Net Weight 148 lb (67.1 kg)
  • Shipping Weight 171 lb (76.5 kg)

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