The SB-118F single 18-inch and SB-218F dual 18-inch subwoofers are designed specifically for low frequency enhancement in cinema applications, especially for low frequency content of the surround channels using bass management techniques. A common application is suspending these enclosures from the cinema ceiling in proximity to the wall mounted surround loudspeakers for which the SB-118F/218F provides low frequency enhancement. The SB-118F/218F covers the frequency range from 37 Hz to 230 Hz.
These enclosures are designed for safe and easy suspension using eight built-in M10 fly points. Heavily braced, tour grade 15 mm plywood construction provides great strength while keeping weight to a minimum. The custom 800 watt, 18-inch transducers were developed especially for cinema use. They feature large 4-inch (101 mm) voice coils and a multi-vented pole piece to ensure cool operation, even at high power levels. Cooler temperatures increase transducer lifespan and decrease the problem of power compression at high power.
The SB-218F enclosure features separate chambers for each transducer. In the rare event of a transducer failure, this prevents over-excursion of the remaining transducer caused by improper box loading. Both models feature 4 ohm impedance, which means that you can use a smaller amplifier to get maximum output from the loudspeaker.
- High output performance with 800 W/1600 W continuous power rating
- Eight built-in M10 mounting points for overhead suspension
- 15 mm plywood construction for increased cabinet structural integrity
- 4 ohm impedance for efficient amplifier power
- Side mounted hand holds for easy handling during installation
- Foam-lined perforated steel grille
- Barrier Strip and Neutrik SpeakOn® connection
|Configuration||2 x 18-inch, subwoofer|
|Frequency Response (-6 dB)||37 Hz – 230 Hz|
|Frequency Response (-10 dB)||32 Hz – 230 Hz|
|Power Capacity2: Continuous/Peak||1600 W / 6400 W|
|Sensitivity (1W, 1m)||101 dB|
|Output1 (Peak SPL @ 1m)||139 dB|
|Driver||2 x 457 mm (18-inch) drivers with 101 mm (4-inch) voice coils|
|Nominal Impedance||4 ohms|
|Input Connectors||2 x NL4, 1 x barrier strip|
|Enclosure||15 mm plywood, black texture finish. Hand holds on each side|
|Grille||Perforated, powder-coated steel, foam-lined|
|Mounting||Eight (8) M10 threaded mounting points|
|Net Weight||168 lb / 76.4 kg|
|Shipping Weight||183 lb / 83.2 kg|
|Dimensions (WxHxD) inches||46.5 x 23.2 x 25.25|
|Dimensions (HxWxD) mm||1180 x 595 x 640|
1 With QSC processing
2 Power that the device can withstand for 2 hours without permanent change in acoustical, mechanical,
or electrical characteristics, greater than 10%, using IEC60268 noise based on nominal impedances
Specifications are subject to change without notice.