S-21B Front Stage Sub-Woofer
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S-21B Front Stage Sub-Woofer
Model: S-21B
Description
The LAX® S-21B single 21" extended low frequency sub-woofer enclosure with its high sensitivity POPE Professional® is designed ground up to provide sub frequency extension to modern cinema applications.
Features
- Single 21" (530 mm) Diameter Transducer
- 6" (153 mm) voice coil
- High sensitivity (98 dB @ 1m/1w)
Specifications
| Model | S-21B |
| Class | 21" Sub-woofer |
| Power Rating | 2500W Continuous / 5000W Program / 10000W Peak |
| Frequency Range | 18Hz - 168Hz (-10dB, half space) / 20Hz - 168Hz (-6dB, half space) |
| System Sensitivity 2V at 1 meter, half space | 98dB, 40Hz - 100Hz |
| Maximum Rated SPL | 131dB continuous, 137dB peak |
| Impedance | 4Ω |
| Transducer Sections | |
| Low Frequency | 21" (533 mm) Diameter POPE Professional® Transducer |
| Voice Coil | 152 mm (6") |
| Voice Coil Material | Copper |
| Former Material | Glass Fiber |
| Magnet Material | Neodymium |
| Chassis Type | Cast Aluminum |
| Nominal Impedance | 8Ω |
| Crossover Mode | Bi-amp |
| Recommended Processing | LF boost Freq. = 25 Hz, 0.71 BW or 2.0Q, Gain = +6 dB |
| Enclosure | |
| Cabinet Construction | 18 mm, Engineered Wood Rectangular cabinet |
| Input Connectors | Barrier Strip Screw terminals that accept upto #11 AWG or 4 sq.mm stranded wire |
| Surface Finish | SoundFlex® environment friendly coating |
| Packing | Foam with wooden crate carton packing |
| Dimensions (H x W x D) | 765 mm x 1220 mm x 630 mm |
| Net Weight | 69 kg |
