Single 21 inch bass subwoofer high end speaker
- Model
- KA21
Item specifics
- Max SPL
- 138 dB
- Low frequency limit
- 29 Hz
- Transducers
- LF: 1 x 21"
- Weight
- 49 kg / 108 lb
- Directivity
- standard or cardioid configurations
Review
Description
| KA21 Specification | |
| Low frequency limit (-10 dB) | 29 Hz |
| Maximum SPL | 138 dB |
| Nominal directivity (-6 dB) | Standard or cardioid configuration |
| Transducers | 1 × 21″ neodymium cone driver |
| Acoustical load | Bass-reflex, progressive vent design |
| Nominal impedance | 8 Ω |
| Connectors | 2 × 4-point terminal block with push-in connection |
| Rigging and handling | External rigging kits |
| Inserts for rigging plates etc. | |
| Threaded insert | |
| Weight (net) | 49 kg / 108 lb |
| Cabinet | FIrst grade Russian birch plywood |
| Front | Coated steel grill |
| Acoustically neutral 3D fabric | |
| Rigging components | High grade steel with anti-corrosion coating |
| Finish | Dark grey brown |
| Feature | Powerful |
| Clear low-frequency | |
| Stringent rigging conditions | |
The KA21 is a compact subwoofer that can expand the frequency response bandwidth such as the A15.The KA21's progressive vent design, which greatly reduces turbulence and outlet noise when used at high output, also improves low frequency efficiency.
