K1 LF Extension
- Extends K1 LF for special extended modes (throw and contour)
- Yields exceptional tonal balance homogeneity for long throw
- Increased K1 system coherence reducing need for stacked subwoofers
- Laminar airflow vents for increased SPL and minimal turbulence noise
- High power handling, low distortion and thermal power compression
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K1 - Large Format Line Source and K1-SB LF Extension Inheriting 15 years of Wavefront Sculpture Technology experience and the latest L-ACOUSTICS® research, the K1 line source delivers an unprecedented level of performance for very large concert stadium applications and outdoor festival productions. Packaged as a complete system for the touring market, K1 combines an advanced three-way, quad-amplified enclosure featuring a new K transducer arrangement, with boosted resources on the HF section. The K1 enclosure is typically combined with a dedicated LF extension (K1-SB) to offer an unprecedented level of directivity control and throw at low/sub frequencies. K1 sets a new benchmark of coherence and tonal balance control over distance. KUDO® can seamlessly be operated with K1 for complementary fills and delays. K1, KUDO® and SB28 are all driven by the LA-RAK universal electronic and signal distribution platform. |
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| K1 |
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| K1-SB |
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| K1-BUMP |
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| K1-DELTA |
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| K1-CHARIOT2 |
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| K1-CHARIOTCOV |
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| K1-PLA |
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| K1-COV |
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| SB28 |
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| LA-RAK |
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| LA Network Manager |
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| SOUNDVISION |
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| COACHELLA FESTIVAL (2009) Indio, CA - USA |
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| RAMMSTEIN TOUR (2009) Europe |
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| DOWNLOAD FESTIVAL (2009) Donington Park - UK |
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| HYDE PARK CONCERTS (2009) London - UK |
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| JEAN-MICHEL JARRE EUROPEAN TOUR (2009) |
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| Shuzo Fujii Director MSI |
"As for K1-SB and SB28, we’ve never managed to get such low, tight sound from any subs before". | ![]() |
| Mike Low Director Britannia Row Productions |
"The mid and high bass is full and has all the ‘weight’ that anyone would need while being very clean, tight and accurate. The introduction of the flown K-Subs as well as the SB28 really works well. We thought on the Bryan Adams tour that its throw capability to the back of arenas was excellent". | ![]() |
| Adam Correia FOH Engineer for Down |
"It was great working with SSE and I thought the K1 system at Download was amazing! It was great sounding, loud and clear. I was able to feel the subs at FOH which I love. Great stuff! I look forward to the next opportunity I get to mix on it". |



















