Sonance LS15T – 15-Inch In-Ground Landscape Subwoofer

Product OverviewThe Sonance LS15T is a 15-inch in-ground subwoofer at the top of the Landscape Series outdoor audio platform. It is intended for integrators building larger or higher-output outdoor zones that need more low-frequency headroom than the LS12T can provide, while still installing via vertical burial so no cabinet is visible above ground.Product DescriptionThe LS15T is built around a 15-inch polypropylene cone woofer with a Santoprene rubber surround and a Laminar Flow Port enclosure, delivering a 20Hz–100Hz (±3dB) frequency response and 98dB sensitivity (2.83V/1m). Power handling is rated at 50W minimum and 500W maximum RMS, with the same 70V/100V transformer tap options as the LS12T (300W, 150W, 75W, plus a 38W 70V tap) via a Sonance Laminated Core Transformer with adjustable tap. The low-density polyethylene enclosure is IP66 rated, UV-resistant, and built to MIL-STD-810 humidity specifications, and its color-molded composite construction is designed to blend into the landscape once buried. At 72.7 lbs, the LS15T is the heaviest subwoofer in the Sonance Landscape Series carried by Creation Networks, and it pairs with LS4T or LS6T satellite speakers for a complete high-output outdoor system.Key Features 15-Inch High-Excursion Woofer — with Santoprene rubber surround for extended bass headroom. Laminar Flow Port Design — optimizes low-frequency output for outdoor spaces. IP66 Weather Rating — UV-resistant and MIL-STD-810 humidity conformant for buried installation. 70V/100V Transformer-Tapped Design — 300W, 150W, and 75W taps for flexible amplifier zoning. Vertical Burial Installation — keeps the subwoofer hidden below grade. Color-Molded Composite Enclosure — resists chipping and fading over time outdoors. Typical ApplicationsLarger estate landscapes, event lawns, and pool areas that need higher-output in-ground bass reinforcement.Technical Specifications Driver 15" (381mm) polypropylene cone, Santoprene rubber surround Power Handling 50W minimum / 500W maximum (RMS) Frequency Response 20Hz–100Hz (±3dB) Sensitivity 98dB (2.83V/1m) Transformer Taps 70V/100V: 300W, 150W, 75W; 70V: 38W Dimensions 21.26"W x 33.58"H x 21.26"D (540x852.93x540mm) Weight 72.7 lbs (32.98kg) Mounting Vertical burial installation; 1/2" NPS satellite thread Weather Rating IP66, UV-resistant, MIL-STD-810 humidity conformance Enclosure Material Low-density polyethylene (LDPE) Color Brown Frequently Asked QuestionsHow does the LS15T compare to the LS12T?The LS15T uses a larger 15-inch woofer for higher sensitivity (98dB) and greater power handling (500W max RMS) than the 12-inch LS12T.How is the LS15T installed?It is designed for vertical burial installation, disappearing below grade once installed.What is the LS15T's frequency response?20Hz–100Hz (±3dB).Is the LS15T weatherproof?Yes, it is IP66 rated, UV-resistant, and conforms to MIL-STD-810 humidity specifications.What transformer taps does the LS15T support?70V/100V taps at 300W, 150W, and 75W, plus a 38W 70V tap.How much does the LS15T weigh?72.7 lbs (32.98kg).