L-AcousticsAudio EquipmentSKU KS21
L-Acoustics KS21 High Power Subwoofer
The L-Acoustics KS21 is a high-power subwoofer featuring a 21-inch neodymium driver for 138 dB SPL. It reaches 29 Hz with standard or cardioid directivity. Procure.ae supplies the KS21 in the UAE for professional audio installations.
The L-Acoustics KS21 delivers high power with a single 21-inch neodymium cone driver, achieving a maximum SPL of 138 dB and a low-frequency limit of 29 Hz. It utilizes an LA4X, LA8, or LA12X amplifier and features an IP55 rating for durability. The bass-reflex cabinet uses L-Vents and Baltic beech/birch plywood, weighing 49 kg with dimensions of 764 mm x 571 mm x 601 mm.
This subwoofer supports standard or cardioid configurations via M6 plate or M8 A-U15i rigging inserts. It connects via push-in 4-point terminal blocks and has an 8-ohm nominal impedance. Procure.ae supplies the KS21 in the UAE and MEA for touring, fixed installs, and large-scale events requiring precise low-frequency control.
Type
high power subwoofer
Weight
49 kg / 108 lb
- Powerful Low Frequency
- Versatile Directivity
- Durable Construction
Delivery across UAE & GCCDubai, Abu Dhabi, Sharjah & beyond
Manufacturer warrantyBacked by the brand
InstallationArranged on request
Key features
01
Powerful Low Frequency
Features a 21-inch neodymium driver delivering 138 dB SPL and 29 Hz limit.
02
Versatile Directivity
Supports standard or cardioid configurations for precise sound control.
03
Durable Construction
Built with Baltic beech/birch plywood and an IP55 rating for harsh environments.
04
Secure Rigging Options
Includes M6 inserts for plates and M8 inserts for A-U15i compatibility.
05
Efficient Amplification
Designed to work with LA4X, LA8, or LA12X amplification systems.
Specifications
13 specificationsGeneral
ModelKS21
Typehigh power subwoofer
Audio
Frequency Response29 Hz low frequency limit
Impedance8 ohms
Max SPL138 dB
Speaker Size1 x 21-inch
Connectivity
Connector Type2 x 4-point terminal block
Physical
Dimensions764 mm x 571 mm x 601 mm
Finishdark grey brown Pantone 426 C
MaterialBaltic beech and birch plywood cabinet
MountingM6 plate inserts, M8 A-U15i inserts
Weight49 kg / 108 lb
Compliance
IP RatingIP55
Questions
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What is the maximum SPL of the KS21?
The KS21 achieves a maximum SPL of 138 dB. This high output is driven by a single 21-inch neodymium cone driver within a bass-reflex enclosure.
Can the KS21 be flown?
Yes, the KS21 can be flown under stringent rigging conditions. It utilizes M6 inserts for plates or M8 inserts compatible with the A-U15i rigging system.
What is the frequency response limit?
The low-frequency limit is 29 Hz. This allows for deep bass reproduction suitable for professional audio applications requiring precise low-end control.
What amplifier is compatible?
The KS21 is designed for amplification via LA4X, LA8, or LA12X amplifiers. It features a nominal impedance of 8 ohms for efficient power handling.
Can I buy the KS21 in the UAE?
Request a quote via WhatsApp +971 4 546 5041 or email info@procure.ae.
