L-Acoustics SB28
L-Acoustics subwoofers complement systems in applications where extended bandwidth is required. All subs incorporate high excursion drivers, ultra-low vibration walls and laminar airflow L-Vents with a flared profile, resulting in dramatic reduction of port noise, maximized dynamics and power handling and an exceptional level of performance.
L-Acoustics subwoofers can be deployed in diverse modes, making them versatile enough to address any rental or fixed installation application. Engineers and sound designers can choose from standard or cardioid configurations, creating a variety of symmetric and asymmetric directivity patterns adapted to each specific design.
- Description
- Technical Specification
Description
- 25Hz LF limit, exceptional power handling capability
- Progressive vent for increased peak SPL, and minimal turbulence noise
- LA8 amplified controller drive and protection
- DSP presets for cardioid mode (symmetrical and asymmetrical)
Low frequency limit (-10dB)
25 Hz ([SB28_100] preset)
Maximum SPL1
142 dB ([SB28_100] preset)
RMS handling capability
1225 W ([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
W x H x D: 1300 x 550 x 700 mm – 51.2 x 21.7 x 27.6 in
Weight (net): 93 kg – 205 lbs.
Connectors: 1 x 4-pin Speakon®
Material: 18 and 24 mm Baltic birch plywood
Finish: dark grey brown Pantone® 426C
Front: polyester powder-coated steel grill,
airnet® acoustically neutral fabric
Rigging: integrated rails for flying, stacking runners
