Primacoustic Stratus Broadband Ceiling Cloud

zZounds Gear Experts Say...
Suspend this 24" x 48" acoustic panel from your studio's ceiling to absorb reflections -- and build a more accurate listening environment for your mixes.

The Primacoustic Stratus is an acoustical device that suspends above the recording console to control early reflections, flutter echo and help eliminate standing waves that cause resonant peaks in the critical mix position. Once in place, you will immediately enjoy a more controlled and intimate acoustic environment, larger sweet spot and reduced ear fatigue.

Attractive and very affordable, the Stratus ships in kit-form and is easily put together in minutes using a simple screw driver. The kit includes a 2" thick, 24" x 48" acoustic panel made from high density 6lb per cubic foot glass wool and suspension hardware. The glass wool is encapsulated with micromesh and the edges are resin treated to retain the minute fibres. For an attractive appearance, the panel is covered in an acoustically transparent fabric.

The suspension hardware consists of two lightweight aluminum rails and "L" brackets that form a rigid frame around the panel. To hang the Stratus, simply attach the included suspension wire to the frame. Hardware and fasteners for sheet-rock ceilings are included in the kit. Typically, the Stratus would be suspended above the console and clustered in an array spanning the width of your console and listening.

The Stratus absorbs sound energy by converting it to heat. Sound energy traveling via air vibrations penetrates the panel causing the minute glass fibres to vibrate and generate heat. This thermo-dynamic energy transfer effectively absorbs directional sound energy read more and prevents it from reflecting into the mix position.

By itself, the 2" thick glass wool panel is 100% effective for frequencies between 400Hz and 20kHz (see the acoustic absorption chart). To help control a broader frequency spectrum, the Stratus may be angled to vary the air space between the Stratus and the ceiling. This allows the backing surface to also absorb reflections off the ceiling.

Features:

- Suspends over the console or listening position
- Attractive fabric wrapped glass wool panel
- Easy to assemble suspension hardware
- Eliminates floor to ceiling reflections
WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.
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- Material: Glass wool
- Density: 6 lb per cubic foot (96 kg/m³)
- Thickness: 2 inches
- Shape: Rectangular panel
- NRC Rating: 1.00
- Fire Rating: ASTM E84 Class A
- Color: Black, Beige, Grey
- Cell Structure: Semi-rigid inorganic glass fibers

Dimensions and Weight in Packaging

Black

  • Shipping Weight: 14.5 lbs
  • Shipping Dimensions: 53 x 25 x 2 in
  • Manufacturer Part Number (MPN): Z840 1200 00

Gray

  • Shipping Weight: 14.85 lbs
  • Shipping Dimensions: 53 x 25 x 3 in
  • Manufacturer Part Number (MPN): Z840 1200 08

For support or warranty questions, please contact the manufacturer:
Phone: 604-942-1001

Reviewers gave this product an overall rating of 2 out of 5 stars. (1 ratings)
Submitted January 10, 2026 by Keeton H in Chicago, IL

"Cheap, incredibly cheap."

Overall: 2 out of 5 stars
(see rating details)
Verified Purchaser zZounds has verified that this reviewer purchased this specific product from us.
I've owned this for over a year, and it's cheap. I'm not joking it's cardboard backing over insulation and canvas and two metal brackets to hold it up via badly machined wires with eye hooks. It is badly made, and I wish I could get a refund for it because once again one of the pieces has fallen. $400 wasted and everything else they have is just as cheap, a massive premium for something you can build in an hour with $50 in parts from your local store.After falling for the third time it hit the edge of my mixing desk and punctured the back end, it's a complete waste.

Musical Background:

Worked in studios in the bay in Cali, in Joliet and Chicago. Worked with artists from around the world with many international t

Musical Style:

Deathcore, EDM, Jazz, Hip-Hop for my personal projects, Country/Metal/EDM for engineer work.
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