KS28
Reference high power subwoofer, dual 18"
| Max SPL | 143 dB |
| Low frequency limit | 25 Hz |
| Transducers | LF: 2 x 18" |
| Weight | 79 kg / 174 lb |
| Directivity | standard or cardioid configurations |
https://www.l-acoustics.com/products/ks28/
Electroacoustic specs
K1 system subwoofer 2×15"
amplified by LA8 / LA12X
| Low frequency limit (-10 dB) |
30 Hz ([K1SB_60]) |
| Maximum SPL1 |
145 dB ([K1SB_X]) |
| Nominal directivity (-6 dB) |
Standard |
| Transducers |
2 × 15″ cone drivers |
| Acoustical load |
Bass-reflex, L-Vents |
| Nominal impedance |
4 Ω |
1 Peak level measured at 1 m under half space conditions using pink noise with crest factor 4 (preset specified in brackets).
Physical specs
| Connectors |
1 × 4-point speakON |
| Rigging and handling |
Captive 4-point rigging system |
| Weight (net) |
83 kg / 183 lb |
| Cabinet |
Premium grade Baltic birch plywood |
| Front |
Coated steel grill |
| Rigging components |
High grade steel with anti-corrosion coating |
| Finish |
Dark grey brown – Pantone 426 C |
| IP |
IP45 |
Dimensions
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