SB-7218
Dual 18-inch Cinema Subwoofer
Features
- SB-7218 features dual 700-watt transducers
- Frequency range extends to below 25 Hz when used with the correct B6 filter
- DCM and SF-3 signal processors optionally available
- Enclosures feature vandal-resistant woofer mounting bolts
| SPECIFICATIONS | SB-7218 |
| Frequency Range 1 (-6 dB, Half space) (-10 dB, Half space) | 22–100 Hz 19–250 Hz |
| Maximum Output 2 Calculated Peak at rated power Calculated Continuous | 137 dB 130 dB |
| Impedance | 4 ohms nominal |
| Maximum Input Power 3 (100 hours of 6 dB crest factor IEC 268 noise spectrum) (2 hours of 6 dB crest factor pink noise, 50 Hz–20 kHz, AES method) Recommended Amplifier Power | 1200 watts continuous 1500 watts continuous 2600 watts continuous maximum |
| Sensitivity 2 V at 1 meter, half space | 101 dB |
| Transducers | Two 18-inch (457 mm) 700-watt high-efficiency subwoofer transducers featuring 4-inch (100 mm) copper voice coils on Kapton formers |
| Recommended Processing | LF boost Freq. = 25 Hz Q = 2.0 Gain = +6 dB provided by QSC, SF-3 or DCM |
| Connectors | Barrier strip screw terminals accept up to #10 AWG stranded wire |
| Enclosure | B6 alignment, vented enclosure with symmetrical port design, tuned to 25 Hz, constructed of MDF and heavily braced. Features vandal-resistant woofer mounting bolts. |
| Dimensions (HWD) inches | 48 × 30 × 24 |
| Dimensions (HWD) mm | 762 x 1220 x 610 |
| Weight | 210 lb (95 kg) |
1All frequency ranges specified refer to measured response (half space, 2 pi).
2Calculated SPL at 1 m, (half space, 2 pi), speaker operating at rated continuous power with pink noise within specified frequency range.
3Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz–20 kHz band limiting, 6 dB signal crest factor.
Specifications are subject to change without notice.