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.
Colore Bose: Nero
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 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, 300 Hz bi-amp Recommended High-Pass Filter 40 Hz with 4th order filter (24 dB / octave) Loudspeaker EQ Recommended