Medium-format waveguide and 60° x 40° pattern designed for downfill applications with LT Coherent Zone arrays in medium to large permanent installations, or as the primary reinforcement source along with MB low-frequency loudspeakers in smaller arrays and venues.
- 60° x 40° coverage for medium-throw applications in auditoriums, worship facilities, performing arts centers, stadiums and arenas.
- Mid/high-frequency loudspeaker designed for use in arrays with separate LF augmentation (Bose® MB12 or MB24 bass arrays) or voice-only applications.
- 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 6400 loudspeaker utilizes a single Bose V2 midrange manifold.
- Bose large-format waveguide provides effective 60° x 40° pattern control to approximately 1 kHz (horizontal) and 1.5 kHz (vertical). Minimizes loudspeaker overlap in arrays to reduce comb-filter interference and improve intelligibility.
Frequency Response (+/-3 dB)1
190 Hz - 16 kHz
Frequency Range (-10 dB)1
170 Hz - 18 kHz
60° H x 40° V
Sensitivity (SPL / 1 W @ 1 m)2
105 dB SPL
Maximum SPL @ 1 m3
125 dB SPL (131 dB SPL peak)
Recommended High-Pass Filter
170 Hz with 4th order filter (24 dB / octave)
Long-Term Power Handling4
100 W (400 W peak)
HF: 1.75" (44 mm) voice-coil compression driver
MF: Bose V2 midrange manifold with 2 x 4.5" (114 mm) cone drivers
Baltic birch plywood, 11-ply, 13 mm
Polyurethane-based textured paint, black or white
16-gauge perforated steel grille with powder-coated finish
Indoor use only
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
25.2" H x 24.1" W x 22.6" D (640 mm x 612 mm x 574 mm)
82 lb (37.2 kg)
96 lb (43.4 kg)
40185 (Special Order Only)