$ 129.99

The Cumulus is a high-performance tri-corner bass trap that is designed to seamlessly integrate into most rooms without interfering with the natural room décor.

Given the choice, acousticians will always employ corners for acoustic sound control. This is primarily due to the way sound propagates inside a room, whereby the walls and ceiling act as waveguides that drive sound to the corners where it gathers. The Cumulus nestles high, up into the tri-corner where the walls and ceiling intersect for maximum efficiency.

Made from high-density 6lb per cubic foot (96 kg/m³) glass wool, the Cumulus delivers exceptional sound absorption, is safe to handle, and has been tested to meet stringent Class-A/1 fire requirements for use anywhere. Front and back surfaces are bonded to micromesh and the edges are resin hardened to fully encapsulate the minute fibers. The panel is then wrapped in an acoustically transparent fabric to ensure maximum sound absorption. A unique spring tensioned clamping system securely holds the panel in place while making installation quick, easy and invisible.

At first view, the Cumulus appears to be quite large. But once the 24″ (60cm) panel snaps into position, it only extends down 17″ talking up very little wall space. This creates a 17″ deep air cavity behind the front facing panel that delivers broadband absorption down to 100Hz for control over model distortion in the problematic low-mid region. This makes the Cumulus the perfect acoustic starting point for home theaters and post production suites that have limited wall space and suffer from over-saturation of lower mid-range frequencies (boomy). For professional studios, the Cumulus helps eliminate standing waves and for voice-over booths, it provides an effective solution for the usual “chest-hump” that plagues most vocal booths in the 200Hz to 300Hz region.

The Cumulus tri-corner trap is a highly effective broadband absorber that comes in a choice of three architecturally neutral colors to match most room décors. The Cumulus comes complete with all of the installation hardware, saving valuable time.

Even though acousticians have long identified the benefits of treating the tri-corner, the difficulty of mounting acoustic panels in corners and a lack of ideal mounting options have discouraged people from taking advantage of this prime room location.

The Primacoustic Cumulus presents a simple and elegant solution. It is a surprisingly basic acoustic device combined with ingenious mounting hardware. Once installed, the Cumulus looks terrific and is highly effective at reducing low-mid frequencies that are attributed to ‘boomyness’ in a room. The magic lies in both the quality of the acoustic panel, its innovative design and the corner mounting location.

The 24″ triangular Cumulus panel is made from high density 6lb per cubic foot (96 kg/m³) rigid fiberglass (A). The same material broadcasters and world-class studios have used for years to control room acoustics. The panel is fully encapsulated with micromesh (B) and employs resin hardened edges (D). These panel treatments combine to ensure the minute glass fibers cannot escape and produce pleasing architecturally straight lines. The 2″ thick panel is then covered in an acoustically transparent fabric (C). The edges of the Cumulus trap are reversed beveled and form a wedge shape (E) that flush-mounts and naturally transitions from the walls and ceilings to create an elegant corner trap.

The strategic corner placement combined with the high performance acoustic panel and cleverly created air cavity behind make the Cumulus a highly effective broadband absorber. The Cumulus is available in three neutral colors that will easily integrate with the most architecturally demanding room designs.

Each side is 24″ in length and, when in place, creates a 17″ deep air space cavity behind the panel that increases the bass absorption characteristics. Mounting Cumulus traps in a room will generally yield a significant reduction in the problematic low-mid region while leaving the architectural design of the room virtually intact. Invisible mounting is achieved using spring-tensioned clasps and a single eye-screw. Mounting literally takes minutes and because of the reverse beveled edges Cumulus traps flush mount ‘seamlessly’ into the room aesthetics.

Cumulus traps have been tested to meet stringent Class-A/1 fire ratings making them suitable for use in residential and commercial spaces.

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