Sonance IS15W – Invisible Series 15-Inch In-Wall Subwoofer

Product Overview

The Sonance IS15W is the flagship in-wall subwoofer in the Invisible Series, built around a 15-inch carbon fiber woofer for the deepest, highest-output bass in the lineup. It is intended for dedicated home theaters and large rooms that require reference-level low-frequency output with zero visible enclosure.

Product Description

The IS15W anchors the low-frequency end of the Invisible Series from Sonance, using a 15-inch carbon fiber woofer with a 592 in² air pulse diaphragm to handle 250 watts RMS at 6 ohms nominal, producing a 30Hz–250Hz frequency response at 93dB sensitivity. Because of its size, the IS15W requires 32-inch on-center stud construction with custom framing in most residential and light commercial projects, and it finishes flush into drywall, select plasters, wallpaper, leather, or wood veneer with up to 3mm of topping compound, exactly like the smaller Invisible Series models. Motion Flex Technology and the Sonance CDX Crossover Design carry through to this flagship subwoofer, and it delivers 180-degree hemispherical dispersion for even low-frequency distribution across large rooms. The IS15W is intended strictly for in-wall use and is typically specified for premium dedicated home theaters where reference bass output is required alongside Invisible Series speakers for the front and surround channels.

Key Features

• 15-Inch Carbon Fiber Woofer — 592 in² air pulse diaphragm delivers the highest output in the Invisible Series lineup.
• 250 Watts RMS Handling — Provides reference-level headroom for dedicated home theaters.
• 30Hz Low-Frequency Extension — Tuned for a 30Hz–250Hz response at 93dB sensitivity.
• Truly Invisible Finish — Installs into drywall, select plasters, wallpaper, leather, or wood veneer with up to 3mm of topping compound.
• 180-Degree Hemispherical Dispersion — Distributes low-frequency output evenly across large rooms.
• 15-Year Limited Warranty — Backed by Sonance when purchased through an authorized dealer.

Typical Applications

• Premium dedicated home theaters requiring reference bass
• Large rooms needing maximum in-wall low-frequency output
• Custom framing projects where a fully hidden subwoofer is required

Technical Specifications

Frequently Asked Questions

What stud construction does the IS15W require?

Because of its 32.2-inch width, the IS15W typically requires 32-inch on-center stud construction with custom framing.

How much power can the IS15W handle?

The IS15W handles up to 250 watts RMS, the highest power rating in the Invisible Series subwoofer lineup.

What frequency range does the IS15W cover?

The IS15W is tuned for a 30Hz–250Hz frequency response, intended for dedicated low-frequency reproduction.

Can the IS15W be used in a ceiling installation?

No. The IS15W is designed strictly for in-wall use given its size and required stud framing.

What mounting depth does the IS15W need?

The IS15W requires a 3.39-inch mounting depth.

What warranty applies to the IS15W?

Sonance backs the IS15W with a 15-year limited warranty when purchased through an authorized dealer such as Creation Networks.