Outdoor Laser Show System 2 X 18 Inches Sub Speaker Box SB28 Loud Bass Subwoofer
SB28
The system shall consist of a subwoofer enclosure driven and protected by a dedicated amplified controller.
The subwoofer shall feature two 18" weather-resistant low-frequency cone drivers with a massive vented structure, mounted in a bass-reflex tuned enclosure.
The LF limit shall be 25 Hz (-10 dB).
The subwoofer shall be used in standard or cardioid configuration.
The maximum SPL shall be 142 dB (peak level at 1 m under half space conditions using pink noise with crest factor 4). The long term RMS handling capacity shall be 1225 W at the nominal impedance of 4 Ω.
The subwoofer cabinet construction shall consist of first grade Baltic birch plywood. The dimensions shall be 550 mm (21.7 in) height, 1300 mm (51.2 in) width, and 700 mm (27.6 in) depth. The subwoofer weight shall be 93 kg (205 lb). The front of the subwoofer shall be protected by a steel grill with anti-corrosion coating covered with acoustically neutral 3D fabric.
The subwoofer shall feature integrated rigging rails and shall be flown with dedicated rigging accessories. The subwoofer shall be connected via one 4-point speakON connector.
| Components | 2 x 18" LF |
| Frequency Response | LF: 30 Hz - 300 Hz |
| Low frequency limit (-10dB) | 25 Hz |
| RMS (Continuous) | 1600W |
| RMS (Peak) | 6400W |
| Nominal Impedance | 4 Ohms |
| Sensitivity (1w/1m) | 103 dB |
| Maximum SPL | 135 dB |
| RMS handling capability | 1225 W |
| 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): 64 kg |
| 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 |
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