Overview
Features
- 1500 W, 21-inch transducer
- Frequency range extends to below 25 Hz without the need for B6 EQ filters
- DCP, DCM and SF-3 signal processors optionally available
- Read the SB-15121 application note: covers the target applications of the SB-15121, as well as advantages and comparisons to other cinema subwoofer designs.
SPECIFICATIONS
- Frequency Range 1
- (-6 dB, half space): 23.8 Hz - 250 Hz
- (-10 dB, half space): 21.5 Hz - 250 Hz
- Maximum Output 2
- Calculated Peak at rated power: 137 dB SPL
- Calculated Continuous: 131 dB SPL
- Impedance: 4 ohms nominal
- Maximum Input Power 3
- 100 hours of 6 dB crest factor pink noise, 25 Hz–250 Hz: 1500 W continuous
- 2 hours of 6 dB crest factor pink noise, 25 Hz–250 Hz, AES method: 2500 W continuous
- Recommended Amplifier Power: 3400 W continuous maximum / 1200 W continuous minimum
- Sensitivity 2 V at 1 meter, half space: 99 dB, 40 Hz–100 Hz
- Nominal Coverage: Omnidirectional (80 Hz)
- Transducers: One 21-inch (533 mm) high efficiency subwoofer transducer featuring a vented 6-inch (153 mm) copper voice coil on a fiberglass former. High excursion/low distortion design, with extremely high power handling and low thermal and port compression. Neodymium magnet to provide a very high force factor and linear excursion.
- Recommended Processing: HPF at 20 Hz, minimum 12 dB/octave slope
- Connectors: Barrier strip screw terminals accept up to #10 AWG stranded wire. Four terminals; two inputs and two parrallel outputs.
- Enclosure: Vented enclosure with symmetrical port design, tuned to 25 Hz, constructed of medium density fibre-board and heavily braced. Features vandal resistant woofer mounting bolts.
- Dimensions (HWD) inches: 48.8 × 30 × 24
- Dimensions (HWD) mm: 1238 x 762 x 610
- Net Weight: 231 lb (105 kg)
- Shipping Weight: 257 lb (114 kg)
