Sonance Thinline 5/8" Round Mounting Platform – BPS6 Sub Bracket

Product Overview

The Sonance Thinline 5/8" Round Gypsum Mounting Platform is the drywall mounting bracket for the BPS6 Thinline bandpass subwoofer. It is built for integrators installing a low-profile, flush-mount subwoofer into standard drywall ceilings or walls. The platform is what allows the BPS6 grille to sit perfectly flush and level once finished.

Product Description

The BPS6 Thinline subwoofer is designed to disappear into a ceiling or wall, and the mounting platform is the part that makes that possible: it is a patented bracket that lets an installer level and secure the grille precisely before the subwoofer module is installed, so the finished opening reads as a clean round cutout rather than a visible speaker frame. This 5/8" round version is engineered specifically for standard drywall construction, giving a secure installation without the additional bracing needed for solid-surface applications. Because the woofer and tweeter inside the companion BPS6 module pivot independently, sound can still be aimed toward the listening area even though the platform itself sits flat against the ceiling or wall plane. Integrators specifying a totally flush, trimless subwoofer for a room typically pair this platform with a Sonance subwoofer from the same Architectural Series lineup, since the mounting platform, module, and grille are sold as separate components that must be matched. The mounting platform itself carries a longer service warranty than the visible grille, reflecting its role as permanent, in-wall infrastructure. Ordering the correct shape and drywall thickness up front avoids a mismatched cutout when the finish trades arrive on site.

Key Features

• Patented Mounting Platform — Enables precision grille leveling for a totally flush, trimless finish.
• Round Cutout, 5/8" Drywall — Purpose-built for standard 5/8" drywall construction in a round format.
• Built for BPS6 Thinline Subwoofer — Matched specifically to the Architectural Series Thinline bandpass module.
• Independent Woofer and Tweeter Pivot — Supports directional sound aiming even with a flat, flush installation.
• 15-Year Limited Warranty — Mounting platform is covered separately from the 5-year grille warranty.

Typical Applications

• Home theaters and media rooms using a flush-mount subwoofer
• Great rooms and living spaces where a visible subwoofer cabinet is not desired
• New construction and renovation projects with standard drywall ceilings or walls

Technical Specifications

Frequently Asked Questions

Does this platform include the BPS6 subwoofer module?

No. The mounting platform is sold separately from the BPS6 Thinline subwoofer module and grille, which must be ordered to complete the installation.

Is this platform for round or round openings?

This version is the round configuration; a matching round version is sold separately for round grille installations.

What drywall thickness is this platform designed for?

It is engineered for 5/8" standard drywall construction.

Can the grille be leveled after the platform is installed?

Yes. The patented mounting platform is designed specifically to allow precision grille leveling during finish-out.

What warranty applies to the mounting platform?

The mounting platform carries a 15-year limited warranty, separate from the 5-year warranty on the grille.