Manufacturer's Response

Kudos to Tom for his very well constructed review of Screen Research's ClearPix2.

CP2 was designed to allow the advantages of placing speakers (central or the three front channels, depending on the configuration) behind the projection screen. Its development was specifically oriented towards the newer digital projection technologies rather than CRT. ClearPix2 has been able to free itself of the legacy constraints of high gain, which were indispensable with CRT projectors, thus favoring the fidelity and faithfulness of the image.

Our primary design objectives were image quality comparable to the best non-acoustically transparent screens on the market, with exceptional acoustic transparency. Our screen formulations are also designed to be compatible with HD sources, and all while avoiding the moiré problems that can occur with traditional micro-perforated materials. We were clearly searching for homogenous video performance over the entire screen surface and off-axis - criteria, which seem critical to us in the domain of home theater. The assurance of having a consistent image, no matter what the angle of vision, seems more pertinent than trying to obtain a significantly higher gain, which might degrade the uniformity of performance as the angle of view varies.

Digital projection technologies are making rapid progress in luminosity, as well as in black levels, and this helps us to put uniformity and fidelity in the forefront of our development. The black backing layer behind the screen is also specific to our screens. It permits great flexibility in the use of our screens while also improving perceived contrast.

We have in fact, tested ClearPix 2 material against a reference material source and found it to have a higher gain than UAV's results against a non-fully calibrated reference used in this test. We feel strongly that a proper gain comparison should be done against a reference white card, or better yet a PhotoResearch reference white puck. The differences between our two methodologies are perhaps the reason for different gain measurements.

With regards to the issue with the Fujitsu projector, we were unaware of the problem and thank you for pointing it out. We will look into it further and see if it is an issue to resolve.

Keep up the great work.

Good viewing and listening!

John Caldwell


Sales Director/Co-founder


StJohn Group, Inc.