L-Acoustics | K1-SB - K1 System subwoofer 2 x 15''

L-Acoustics | K1-SB - K1 System subwoofer 2 x 15''

The L-Acoustics K1-SB is a flyable, high-power subwoofer with two 15 inch drivers in a bass-reflex enclosure. It delivers up to 145 dB SPL with extension down to 30 Hz, and is the recommended low-frequency complement for K1 and K2 line sources. With its integrated four-point rigging system, it can be flown in the same array as your main system.

Extra low-end power for large-scale systems

Large venues and outdoor events often need more low-frequency energy than a line source can deliver on its own. The L-Acoustics K1-SB extends the bandwidth of the K1 and K2 down to 30 Hz (-10 dB) and adds serious impact to the system. Two 15 inch drivers in a bass-reflex enclosure with L-Vents give you high sensitivity, low thermal compression and low distortion, even at the highest levels.

Contour or throw: you choose

The K1-SB offers two dedicated configurations. In contour mode it reinforces the low end of the array for a fuller sound across the audience area. In throw mode it increases low-frequency projection to reach the back of long venues. This lets you tune the system to the shape of the venue and the needs of the production.

Fly it with your main system

The integrated four-point rigging system of the K1-SB is fully compatible with K1 and K2 enclosures. Fly it as a standalone array or place it at the top of a vertical array of K1, K2 or Kara enclosures. This keeps the low frequencies aligned with the main system and frees up valuable floor space on stage and at front of house.

Built for touring

The cabinet is made of premium-grade Baltic birch plywood with a coated steel grille, and the rigging components are made of high-grade steel with an anti-corrosion coating. It is made for the demands of daily use in the rental and touring market.

Typical applications

• Touring productions and festivals
• Stadiums, arenas and sports venues
• Large theaters, concert halls and auditoriums
• Long-throw venues that need extra low-frequency projection
• High-end fixed installations with K1 or K2 line sources

Pair it with

The K1-SB is driven by an L-Acoustics amplified controller such as the LA8 or LA12X, with dedicated presets for the contour and throw configurations. It works best together with the L-Acoustics K2 line source. For even more extended low-frequency performance, look at our other L-Acoustics subwoofers.

Want to know more?

Designing a K2 system and not sure how many K1-SB subwoofers you need, or whether contour or throw fits your venue? Contact us and we'll be happy to advise.

Acoustical

• Low Frequency Limit (-10 dB): 30 Hz
• Maximum SPL: 145 dB
• Nominal Directivity (-6 dB): Standard
• Transducers: 2 × 15" cone drivers
• Acoustical Load: Bass-reflex, L-Vents
• Nominal Impedance: 4 Ω

Physical

• Connectors: 1 × 4-point speakON
• Rigging and Handling: Captive 4-point rigging system; 4 handles integrated into the cabinet; inter-enclosure angles: 0°, 0.5°, 1°, 1.5°, 2°, 2.5°, 3°, 4° or 5°
• Dimensions (H × W × D): 1342 × 438 × 520 mm
• Weight (Net): 83 kg
• Cabinet: Premium-grade Baltic birch plywood
• Front: Coated steel grille, acoustically neutral 3D fabric
• Rigging Components: High-grade steel with anti-corrosion coating
• Finish: Dark grey brown Pantone 426 C
• IP Rating: IP45