| Specification | |
| Model: B21 | |
| Components | LF1x21"(530cm)Neodymium driver |
| Height x Width x Depth | 740mm(29inch)x660mm(26inch) x750mm(30inch) |
| Weight | 63kg |
| Speakon connectors | XLR male in & XLR female out |
| Finish | Plywood finished with textured black coating |
| Stand fittings | Yes |
| Frequency Response | 30 Hz - 600 Hz(DSP Adjustable) |
| Sensitivity 1W @1m | 98 dB |
| Nominal Peak SPL @ 1m | 136 dB |
| Crossover Frequencies | 100Hz |
| NominalImpedance | 4Ω |
| Amplifiers | 2400W. |
| AC POWER | 110V/60 Hz, 220V/50Hz Optional |