L-Acoustics KS21i High Power Subwoofer — specification sheet
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L-Acoustics · KS21i · Speakers

L-Acoustics KS21i High Power Subwoofer

L-Acoustics KS21i High Power Subwoofer

The L-Acoustics KS21i is a high-power subwoofer featuring a 1 x 21" neodymium cone driver for deep bass down to 29 Hz. It delivers 138 dB max SPL in standard or cardioid configurations. Procure.ae supplies this professional audio equipment to businesses and event organizers across the UAE.

This high-power subwoofer utilizes a 21-inch neodymium driver in a bass-reflex enclosure with L-Vents to achieve a maximum SPL of 138 dB. The low frequency limit reaches 29 Hz, ensuring powerful low-end response. It features an IP55 rating for durability and connects via a 4-point terminal block with push-in capability. The cabinet is constructed from Baltic beech and birch plywood, finished in dark grey brown or pure white.

The KS21i supports rigging via M6 inserts for plates and M8 inserts for A-U15i compatibility. It is designed for use with LA2Xi, LA4X, LA8, and LA12X amplifiers. Weighing 46 kg with dimensions of 752 x 569 x 629 mm, it fits large venues. Procure.ae offers tender quotations and installation services for this system across the UAE and MEA.

Type
high power subwoofer
Weight
46 kg / 101 lb

Key features

01
Powerful Low Frequency
A 1 x 21" neodymium driver delivers 138 dB max SPL with a low frequency limit of 29 Hz.
02
Configurable Directivity
The system supports both standard and cardioid configurations for precise sound control.
03
Durable Construction
Built with Baltic beech and birch plywood with an IP55 rating for environmental protection.
04
Flexible Rigging Options
Includes M6 inserts for plates and M8 inserts for A-U15i compatibility.
05
Amplifier Compatibility
Designed to work with LA2Xi, LA4X, LA8, and LA12X amplifiers.

Specifications

General
ModelKS21i
Typehigh power subwoofer
Audio
Frequency Response29 Hz low frequency limit
Impedance8 Ω
Max SPL138 dB
Polar Patternstandard or cardioid configurations
Speaker Size1 x 21" neodymium cone driver
Connectivity
Connector Type4-point terminal block with push-in connection
Physical
Dimensions752 x 569 x 629 mm
Finishdark grey brown Pantone 426 C
MaterialBaltic beech and birch plywood cabinet
Weight46 kg / 101 lb
Compliance
IP RatingIP55
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This sheet is compiled from the product data held on procure.ae. For fully accurate and up-to-date figures, always refer to the manufacturer’s own specification sheet or datasheet for this model.

Specifications are provided by the manufacturer and may change without notice.

Pricing is quote-based. Contact Procure for current pricing and availability.

Delivery across the UAE and beyond, installation on request and manufacturer-backed warranty.

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