The dB Technologies IS115S is a high-performance passive subwoofer designed to extend the low-frequency response of the IS Series full-range loudspeakers. It delivers professional-grade bass reinforcement in a compact, durable form, making it an ideal solution for permanent installations in medium to large environments such as performing arts centers, clubs, multipurpose venues, arenas, and houses of worship.
The IS115S features a powerful 15” woofer with a 4” voice coil, housed in a bass-reflex plywood enclosure for tight, extended low-end performance. With an RMS power handling of 800W and peak power of 3200W, the IS115S offers a maximum SPL of 133 dB, ensuring thunderous and controlled bass reproduction in any setting.
This subwoofer is engineered for both indoor and outdoor use, thanks to its IP55 weather-resistant rating and water-based coating that protects the wooden housing from the elements. A screw terminal connection block provides a secure and installation-friendly audio interface, while integrated rigging points allow for suspended mounting using optional accessories, giving installers maximum flexibility during setup.
The IS115S is available in both black and white finishes, and the white version can be custom-painted to suit aesthetic requirements. It seamlessly complements IS Series tops such as the IS210L and IS210T, offering balanced and full-range audio reproduction when paired together.
Whether you’re enhancing speech intelligibility, musical performances, or playback systems in fixed installations, the IS115S is the perfect low-frequency extension for robust, scalable, and aesthetically clean sound system designs.
Features:
Passive 15” bass-reflex subwoofer
800W RMS / 3200W peak power
Max SPL: 133 dB
Extends low-end response for IS Series tops
IP55-rated enclosure for indoor/outdoor use
Rugged plywood housing with water-based coating
Compact design for discreet installation
Available in black and paintable white finishes
Screw terminal input block for secure wiring
Compatible with flyable accessories for suspended mounting
Specifications:
| Category | Specification |
|---|---|
| Speaker Type | Passive Bass-reflex Subwoofer |
| RMS Power | 800 W |
| Peak Power | 3200 W |
| Usable Bandwidth [-10 dB] | 38 Hz – Xover |
| Frequency Response [-6 dB] | 42 Hz – Xover |
| Impedance | 8 Ohm |
| Max SPL | 133 dB |
| LF Driver | 1x 15″, 4″ voice coil |
| Input Connections | Screw terminal block (+ / –) |
| Housing | Plywood with water-based coating |
| Rigging Points | Screw connection (compatible with fly accessories) |
| IP Rating | IP55 |
| Dimensions (WxHxD) | 650 x 420 x 550 mm (25.59 x 16.54 x 21.65 in) |
| Weight | 27.8 kg (61 lbs) |
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