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Sound Perforation Options

THX Microperf X²

We think a lot about light and images and your eye, but we haven’t forgotten about sound. If you were to take a close look at the screen in a good movie theater, you would see perforations. Why? To let the sound from behind-the-screen speakers pass through.

We offer screens that are “acoustically transparent” so you can place speaker(s) behind the screen to create big theater sound in a personal theater. During post-production audio mix for a film, sound tracks are assigned to designated speakers, with left, center and right channel speakers in the front, surround sound speaker behind the viewer.

That way the sound comes from where you expect it. The audio is aligned with action seen on the screen. Stewart’s THX® acoustically transparent screen has over 30,000 micro-perforations per square foot, compared with 5,500 in a commercial movie theater screen. In addition, the perforations are much smaller than those on commercial theater screens. Having more, smaller perforations is better for the type of sound waves transmitted by home cinema audiosystems. And don’t worry—you won’t see the holes, but your ears will tell you they are there.

 

Why choose Microperf X² for your acoustically transparent solution…
- Available with any of Stewart's front projection materials (excluding Silver 3D)
- First projection material to be THX Ultra Certified
- Maintains impeccable image fidelity
- Unbeatable audio quality (no secondary black backing required)
- Retains exceptional contrast, color saturation, and uniformity
- Moiré pattern is eliminated with Stewart’s custom approach
- Significantly less light return/blow-through than earlier perforation processes
- Largest seamless acoustically-transparent screen available (max. material O.D. is 14-1/2 ft by 60 ft)

Specifications:
Perforations per Square Foot: 30,000
Perforation/Hole Size: .020th of an Inch in Diameter
Light Loss: Less than 10.2%
Material Outer Dimension: 14-1/2 feet by 60 feet (Perforated Area: 13 feet 2 inches)
Cinema Sonic Processor: Compensates for sound frequency variance and levels
out the frequency response from 20 Hz to 20 kHz


Cinemaperf for Large Venues

In the traditional cinema environment, perforated screens are used in conjunction with speakers mounted behind the screen surface. The primary purpose is to localize the delivery of speech and sound to the appropriate area of the image, in order to heighten the sense of involvement and believability.

Cinemaperf provides thousands of perforations per square foot, allowing sound to pass through the projection screen surface for the ultimate cinema experience. Engineered for use in large venue applications where the viewing distance is at least 15 to 20 feet back from the image. Each perforation is less than .040th of an inch in diameter providing professional grade sound and the highest-quality image. Why choose Cinemaperf for your acoustically transparent solution…

 

Why choose Cinemaperf for your acoustically transparent solution…
- Available with a variety of Stewart's front projection materials
- Excellent for use in large venue installations where an acoustically transparent screen is required
- Unbeatable image fidelity and audio quality (no secondary black backing is required)
- Exceptional contrast, color saturation, and uniformity
- No Moiré pattern

Specifications:
Perforations per Square Foot: 5,500
Perforation/Hole Size: .040th of an Inch in Diameter
Light Loss: Less than 8.5%
Material Outer Dimension: 36 feet by 90 feet
 

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