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Home Cinema Guru's Tips And Observations
Maintaining Front Projector White Balance
May 4th
The lamp in a front projector will shift in color over time more than any other display. To keep the color performance up to the standards it was left in after a professional calibration you can touch up the color of white yourself. I do this about every 200 hours on More >
Common Surround Processing Errors
Apr 25th
When selecting and setting up surround sound it is important to realize that many key features do not work as advertised in a large number of products. Common faults in many receivers, preprocessors and players include the following.
- Bass management drops bass that should be redirected to subwoofer causing the system More >
PLIIz and Audyssey DSX Height Channels
Apr 24th
I have worked on several systems now with the additional height channels available with Dolby PLIIz and Audyssey DSX. Based on listening to several setups these channels can significantly improve the sound field for movies. I found this most successful where the front main speakers must be placed closer together More >
Front Projection For Great Sound
Apr 22nd
Many people are in search of great sound along with a great picture. One thing many do not realize is the impact that a large flat panel display has on sound. Going to front projection can dramatically improve your systems sound performance by eliminating that very acoustically reflective LCD or plasma between the More >
Front Projection System Maintenance
Apr 11th
Front projection systems are fun, but a little maintenance can keep them at peak performance.
Over time your projector and screen will collect dust. I would dust the screen with a soft clean cloth once every six months. The projector lens will also collect dust. I would consider dusting it More >
VideoEQ Pro Review
Apr 10th
I recently had the opportunity to check out the VideoEQ Pro from AVFoundry. This is an external video color processor that can be used to correct gamma, gray scale, color and hue errors from improper primary and secondary colors. The product includes infrared remote control along with 4 custom and preset tables. More >
The Magic of D65
Apr 1st
Achieving a D65 (x=0.3129, y=0.3290) white point is one of several key factors required to have a great image. One of the first things you may notice when a display is at D65 is the rich color and emotional ques that can be found in films. Directors tell a story in various ways including color, lighting, dialog and sound. When More >
Room Acoustic Designers
Mar 19th
A few weeks ago I had an opportunity to work on a theater designed by a well known acoustical design firm. The RT60 for this theater measured at 360 ms. It had a strong slap echo and was way too reverberant for quality theater sound.
The installation had too many diffusers compared to More >
Matching Preamplifiers and Amplifiers
Mar 19th
When you purchase a preamplifier from a different manufacturer than the amplifier you need to be sure they are compatible. The amplifier will need a certain number of volts to drive it to full current. The preamplifier needs to supply that level of voltage for the amplifier to deliver its power rating. This More >
Wilsonart Designer White 2:35 Screen
Mar 19th
I had the opportunity to work on a 10 foot wide 2:35 aspect ratio screen using Wilsonart Designer White laminate. This material easily allowed a ceiling mounted JVC RS35 at a 2.0 throw ratio using lens zoom to illuminate the screen at 12 to 15 fL in low lamp mode. More >
