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.
System Type |
18" flyable subwoofer |
Frequency Rangeat -10 dB (Hz) 1 |
32 Hz – 230 Hz |
Peak Output2 |
133 dB |
Nominal Impedance |
4Ω |
Sensitivity4 |
98 dB |
Driver Information |
18" (457 mm) driver with 4" (101 mm) voice coil |
Dimensions (HWD) inches |
23.2 x 24.2 x 23.6 |
Dimensions (HWD) mm |
590 x 616 x 615 |
Weight |
95 lb / 43 kg |