Control early reflections, flutter echo and standing waves that cause resonant peaks.
The Primacoustic Stratus Ceiling Cloud 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 acoustic cloud 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 6-lb. per cubic foot fiberglass and suspension hardware. The fiberglass is encapsulated in a micromesh, and the edges are resin treated to retain the minute fibers. 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 picture wire to the frame. Hardware and fasteners for sheetrock ceilings are included in the kit. Typically, the Primacoustic Stratus would be suspended above the console and clustered in an array of three to span the width of your console.

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

By itself, the 2" thick fiberglass panel is 100% effective for frequencies between 400Hz and 20kHz. 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.

For years, acoustic clouds and canopies have been used to control sound. They can be made of ridged material to reflect sound waves or soft material to absorb it depending on their purpose.

In theaters, reflective clouds are often visible in the form of hard, curved devices that are arrayed and suspended above the stage. Theaters use theses types of clouds to reflect sound back toward the stage so that the musician can get a sense of intimacy. These reflective type acoustic clouds provide the natural ambiance of a smaller room within a cavernous hall, thus allowing the performer to better interact within the acoustic environment.

Absorbing acoustic clouds, like the Primacoustic Stratus, perform the opposite function: Instead of reflecting energy back into the space, the absorbing properties are used to remove unwanted reflections. Basic forms of these devices are known as acoustic baffles (or flags) and are often used in highly reflective environments, such as swimming pools, bottling plants, printing presses and other commercial installations where controlling echo or reducing the reverberant time can make the workplace a more comfortable and safe place.

The Primacoustic Stratus is a more elegant solution and is the preferred choice in environments, such as recording studios where acoustic performance is as important as aesthetics. Acoustic clouds play an important role in studio design as they control the powerful primary reflections that originate from the monitors and bounce off the ceiling and console. These primary reflections combine with the direct sound of the loudspeaker and cause phase cancellation. Furthermore, parallel surfaces, such as a floor and ceiling, cause standing waves to exist which can introduce a resonant peak in the primary listening area.

Suspends over the recording console or listening position
Attractive fabric wrapped high-density fiberglass acoustic panel
Easy-to-assemble suspension hardware
Eliminates floor-to-ceiling noise reflections

Orders are generally shipped the following business day after payment is received. For example, if your order is placed and paid for at 1 p.m. Eastern Time on Friday, Music & Arts will ship it on Monday. We are only shipping eBay orders via standard ground shipping at this time (3-7 business days for delivery once the item leaves our warehouse)

We use eBay Managed Payments and accept the following forms of payment credit, debit, and gift cards, Apple Pay, Google Pay, PayPal, and PayPal Credit.

We are required to collect sales tax on all orders shipped to Alabama, Arkansas, Arizona, California, Colorado, Connecticut, District of Columbia, Georgia, Hawaii, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin and Wyoming. You will be charged the state and local sales tax rate for any orders shipped to these states. Georgia, Louisiana, Rhode Island and Pennsylvania Residents: Music & Arts is not obligated to, and does not, collect sales tax in your state. Your purchase is subject to sales/use tax in these states unless it is specifically exempt from taxation. The purchase is not exempt merely because it is made over the Internet or by other remote means. These states require that you file a sales/use tax return at the end of the year reporting all of the purchases that were not taxed on those purchases. Retailers that do not collect sales tax in these states are obligated to provide purchasers an end-of-year summary of purchases in order to assist them in filing their tax report. Retailers that do not collect sales tax in these states may be required by law to provide the Department of Revenue with an annual report of the total amount of all of your purchases above certain thresholds. Details on how to file this return may be found at your applicable Department of Revenue website. Alabama residents: Seller has collected the simplified sellers use tax on this transaction(s) delivered into Alabama and the tax will be remitted on the customer’s behalf to the Alabama Department of Revenue. Seller’s program account number is SSU-R010211465

Our products are backed by our 45-Day Satisfaction Guarantee. Our commitment to you is to ensure that you are completely satisfied with your purchase.

New Gear: If you’re not satisfied, neither are we. If for any reason you’re not completely satisfied with your purchase of a new item, simply return it in its original condition within 45 days of purchase (see exceptions below) and we’ll give you a full refund. It’s that simple.

Returned items must be in original, brand-new condition, showing no signs of wear or use such as belt-buckle or pick scratches, scuffs, dings or scrapes on the instrument or collateral materials. Items must also include all original packaging, manuals, warrantees and accessories or your return may be subject to a return handling charge.

Your refund will be promptly processed upon successful evaluation of your returned item from our trained category professionals. Refunds are made for product value only, excluding shipping and handling charges. If you received Free Shipping on your order, the value of the uncharged shipping cost will be deducted from your refund.

Limitations and Exceptions

Returns of the following products must be made within 10 days of shipment - Stringed instruments priced at $1999.00 or more. The following products cannot be returned – Clearance items, Apple products, items identified as non-returnable, discontinued items, electronic software downloads, demo gear, vintage instruments, strings, reeds, computers, tubes, earbuds, earplugs, recorders, tin whistles, flutophones, "world" wind instruments, harmonicas, raw-frame speakers, drumheads, drumsticks, turntable cartridges, fog fluid, clothing/footwear, body jewelry, sheet music, cleaners, polishes and polishing cloths, software/soundware, books, CDs, DVD's, vinyl records, and videos.The following fees apply to Band & Orchestra returns - All returned woodwind and brass instruments incur a $10.00 sanitization fee. Returned bows are assessed a $4.00 restocking fee. Returned mouthpieces over $300 incur an $8.00 sanitization fee; the fee for mouthpieces under $300 is $4.00.