LACOUSTICS
Subwoofer SB28

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 LACOUSTICS SB28



Product Code: SB28







 

Overview
The SB28 enclosure is a recommended subwoofer companion for the KUDO®, V-DOSC®, dV-DOSC, and ARCS® systems, lowering the combined system operating range down to 25 Hz.
The SB28 contains two 18’’ direct radiating LF transducers integrated into a bass-reflex tuned enclosure. The specially designed 18’’ transducers provide an exceptional cone excursion capability combined with low thermal compression even at the very highest operating levels. The bass-reflex vents feature a progressive profile allowing for laminar airflow. The association of the modern components with the new vents delivers a greatly improved +5 dB peak SPL output compared to the previous standards. The control and amplification of the SB28 is managed by the LA8 platform. The DSP filtering encompasses advanced crossover functions, system EQ, and L-DRIVE thermal and over-excursion protection of the transducers. The L-ACOUSTICS® LA8 amplified controller offers the following drive modes:

■ The ‘‘standard’’ mode using SB28 as a companion to KUDO®, V-DOSC®, dV-DOSC and ARCS®, featuring a low-pass filter at 60 Hz ([SB28_60] preset) or as a companion to dV-DOSC and ARCS® with a low-pass filter at 100 Hz ([SB28_100] preset)
■ The ‘‘cardioid’’ mode using SB28 as a companion to KUDO®, V-DOSC®, dV-DOSC, ARCS®, featuring a low-pass filter at 60 Hz ([SB28_60_C] preset) or as a companion to dV-DOSC, ARCS® with a low-pass filter at 100 Hz ([SB28_100_C] preset).

The performance of the SB28 enclosure depends upon the choice of preset and physical system configuration. Made of high grade Baltic birch plywood, the cabinet also features industry standard aeroquip rails for line array rigging.

 

Features of LACOUSTICS SB28

■ Exceptional power handling capability
■ Low frequency limit of 25 Hz
■ Laminar airflow vents for increased dynamic range
■ Reduced vent turbulence noise
■ LA8 amplified controller drive and protection with new preset library
■ Cardioid DSP emulation in symmetrical and asymmetrical modes

 

Specifications of LACOUSTICS SB28
 

Low frequency limit (-10dB)
■ 25 Hz ([SB28_100] preset)

Long term RMS handling capacity
■ 1225 W

Maximum SPL
■ 140 dB ([SB28_100] preset)

Components
■ LF: 2 x 18’’ weather-resistant, (4’’ coil, aluminium die-cast basket, vented magnet design)
■ Nominal impedance: 4 ohms
 
Physical data
■ H x W x D: 1300 x 550 x 700 mm - 51.2 x 21.7 x 27.6 in
■ Weight (net): 93 kg - 205 lb.
■ Connectors: 1 x 4-pin Speakon®
■ Material: 18 and 24 mm Baltic birch plywood
■ Finish: grayish-brown RAL 8019®
■ Front: sandblast-coated steel grill, acoustically transparent ‘‘Airnet’’ black cloth
■ Rigging: integrated rails for flying, stacking runners 
Coaxial Products
XT Range
8XT
12XT
115XT HiQ
P-Series
108p
112P
SB15P
Line Source Products
Medium
ARCS
Modular
KIVA
KILO
dV-DOSC
dV-SUB
Large Format
KUDO
V-DOSC
K1
K1-SB
Subwoofer Product
SB118 subwoofer
SB28 subwoofer

LACOUSTICS 241109
| LACOUSTICS |
|
8XT | 12XT | 115XT HiQ | 108p | 112P | SB15P | ARCS | KIVA | KILO | dV-DOSC | dV-SUB | KUDO | V-DOSC | K1 | K1-SB | SB118 | SB28 |