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SL Bass Enclosure

The SL2.15 is a double 15" direct radiation subwoofer system with an augmented bass reflex. Built to integrate aesthetically with the SL412, the SL2.15 produces deep bass from its slim cabinet design. Bass response is enhanced by coupling when the SL2.15 is used against or in a wall, providing optimum output for its small footprint. It also combines beautifully with the Ultra Low-Frequency VHD1.21 and 2.21 subwoofers as part of a five-way active system.


  • Slim, discreetly profiled wall mount cabinet

  • 129dB sustained output, 132dB peak with very high dynamic range

  • Simple wall mounting, suspension, and ground stacking options can be installed internally into walls and surfaces

  • These units can be designed and supplied with custom colors, grill templates, and logos, offering a flexible and truly designer-integrated product

  • A single horizontal yoke assembly with multiple fixed angles and fixing locations provides a quick and cost-effective solution for simple suspension

  • Front-loaded, 2x 15" bass drivers with 3" voice coil assembly and ferrite magnet motor structure

  • Professional, exterior-grade Baltic birch construction with a wear-resistant polymer coating

  • Proprietary side handle design for simplified handling and carrying

  • Internal back braces with nine M10 suspension points

  • A total of 23 suspension points are available for custom installation applications

  • Two SL2.15 speakers require one channel of two-channel VHD3200 subwoofer amplifier unit

  • The SL412i & SL2.15i are identical in performance and finish as the existing SL412 & SL2.15, except they do not incorporate the fixed handles for touring and presentation use. The ‘I’ version is designed for fixed installation use with the same existing mounting and flyware fixings


Specifically designed subwoofer enclosure to accompany the SL412 as a high powered aesthetically pleasing full range music playback and performance system

  • Fixed installation

  • Nightclubs

  • Multi use venues

System Acoustic Performance

Max SPL Long-term129dB

Max SPL Peak: 132dB

-3dB Response: 40Hz to 500Hz

-10dB Response: 35Hz to 500Hz

Sensitivity: 100dB

Impedance: 8Ω

Crossover Point: 70Hz

Low-Frequency Section

Acoustic Design: Direct-Radiating with Bass Reflex

Low-Frequency Amplifier Requirement: 1600W / 2 x SL2.15 (VHD3200 amp.)

Number of Drivers: 2

Woofer Size / Voice Coil Diameter / Design: 2 x 15" / 3" Inside Outside

Magnet Type: Ferrite

Diaphragm Material: Epoxy Reinforced Cellulose

Speaker Input

Speaker Input: AP4

Speaker Output

Speaker Output: AP4


Cabinet Material: Baltic birch

Handles: 2

Color: "Orange peeled" Matt Black or any RAL

Physical Dimensions

Height: 960 mm (37.8")

Width: 1080 mm (42.52")

Depth: 350 mm (13.78")

Weight: 61 kg (134.5lbs)

Product code

  • KVV 987 274 - SL2.15

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