The L-Acoustics KS21iRAL is a high power compact subwoofer: 1 x 21" (installation version, RAL).
- Configuration: High power compact subwoofer: 1 x 21" (installation version, RAL)
- Nominal directivity (-6 dB): standard or cardioid configuration
- Transducers: 1 / × / 21″ / neodymium / cone driver
- Nominal impedance: 8 Ω
- Connectors: 1 / × / 4-point terminal block with push-in connection
- Weight (net): 46 kg / / / 101 lb
- IP: IP55
