ASC IsoWall: “…is a building method that achieves excellent isolation of the listening room (sound proofing), nearly eliminates wall shudder, and absorbs excess bass. It’s remarkable that Iso-Wall addresses these three major problems with a single construction technique.” – Robert Harley, editor of The Absolute Sound magazine. Read his original full article here. ASC is honored to have received the 2019 TAS ACOUSTIC PRODUCT OF THE YEAR for our IsoWall system. But what is it?
You start with a typical framed wall or ceiling. First, you add RC Pads at prescribed locations. Second, you add damped resilient channel, screwed to the studs or joists through the pads. Third, you lay down wall bearing felt onto the floor. Fourth, you apply perimeter gasket around the top, bottom, and sides of the wall & ceiling, plus around openings like doors and windows. Now you are ready for drywalling. Install the first layer with seams aligned to the channel. Now apply WallDamp Strips around the outer perimeter and on the drywall seams. Add WallDamp Squares throughout the drywall on 12″ centers. Seal the edges and around outlets & switches with acoustic sealant. Add another layer of drywall. Seal the edges one more time with acoustic sealant.
You’re done, ready for tape, mud, paint, and musical bliss!
When sound quality in your room is of the utmost importance, ASC’s IsoWall construction system simply cannot be beat. Other assemblies may offer greater sound isolation using massive poured concrete walls or 4-layer drywall. But guess what? All that sound bounces around inside the room where you’ve trapped it, and your listening experience is terrible. Yet other assemblies may avoid the buildup of bass by using paper-thin walls and windows everywhere, letting the bass waves expand away from your room without bounds. But guess what? The deep bass is lost, your system lacks punch, and your neighbors are constantly complaining. If you want to keep the peace while enjoying the best sound quality, IsoWall is what you need.
Our Iso-Wall system has beens meticulously engineered for optimal musical acoustic quality. Utilizing the tried-and-true soundproofing technique of building a floating wall with double thickness, the ASC Iso-Wall system takes performance a step further. By including viscoelastic damping at key joints of the assembly and prescribing construction methods to best utilize the damping properties, the Iso-Wall system provides deep bass absorption along with improved sound isolation–and a totally inert assembly that will not ring, quiver, or shudder.
Typical construction methods are simply not adequate for handling the high sound pressure levels delivered by today’s top-of-the-line loudspeakers, subwoofers, and full-range studio monitors. The IsoWall system was designed from the onset with high-level musical playback in mind. Users of Wilson loudspeakers, JL Audio Subwoofers, and any other sound reproduction system capable of 100+ dB in the ~20 Hz range absolutely need structural damping to enjoy the full capabilities of their system. The ASC Iso-Wall is one of the few construction systems to adequately deliver.
“I recommended that Randy’s room be built using the IsoWall technique, developed by Art Noxon of Acoustic Sciences Corporation (ASC)… After three and a half years of using my room for critical listening in equipment reviews, as well as listening for pleasure on a near-daily basis, I am beyond thrilled by my room’s performance.”
– The Absolute Sound’s Robert Harley
Read Robert’s entire article