Benq PE7700 home theater projectorProtech
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Benq PE7700 home theater projector : (product is used but in new condition) The BenQ PE7700 puts out an impressive amount of light. Rated at 1100 ANSI lumens, we were able to produce approximately 750 ANSI lumens at settings ideal for, say, a football game in the family room. At settings better suited for home theater, the PE7700 produces closer to 400 lumens, which is more than enough to light up a large screen - you can use a screen up to 120" diagonal and still get a great picture.
- 1100 ANSI lumens, 2500:1 contrast, native 16:9 widescreen format, 1280x720 resolution DLP chip with a 5x speed six-segment color wheel.
- HDTV 1080i, 720p, 576p, 576i, 480p, and computer resolutions up to 1024x768. Full NTSC / PAL / SECAM.
- Lens and Throw Distance : 1.37:1 manual zoom/focus lens. Throws a 100" diagonal image from 9'7" to 13', depending on zoom.
- Lamp Life : 2,000 hours in "Full" mode, 3,000 hours in economy mode.
- Connection Panel : One composite video, one S-Video, One set of standard YPbPr component inputs, one set of five BNC component/RGB inputs, one HDMI port (which accepts DVI-I or DVI-D with HDCP, component and RGB video), and one RS-232C port for an external control.
The BenQ PE7700 puts out an impressive amount of light. Rated at 1100 ANSI lumens, we were able to produce approximately 750 ANSI lumens at settings ideal for, say, a football game in the family room. At settings better suited for home theater, the PE7700 produces closer to 400 lumens, which is more than enough to light up a large screen - you can use a screen up to 120" diagonal and still get a great picture.
Lumen output on the PE7700 is highly adjustable. Changing the lamp mode from Economy to Full results in a 25% increase in lumen output, which can help combat the effects of ambient light washing out the image. Likewise, switching from "Home Theater" to "Family Room" mode delivers nearly 50% more light to the screen (with the lamp output set at Full, switching from Home Theater mode to Family Room mode took lumen output from 500 lumens to about 720 lumens). However, for best color performance and contrast, it is still advisable to darken the viewing environment as much as possible, and stick with the Economy lamp mode and the Home Theater color profile.
Most projectors using the HD2+ DLP chip have excellent contrast, and the PE7700 is no exception. High contrast and deep black levels are sufficient to give the image good snap. In a large majority of cases, shadow details are rendered with good separation without blocking up.
The PE7700's image is also nearly noise-free, with very little dithering in shadows and low-light areas. To further reduce noise, there is a noise filter that you can activate via the menu. If you are faced for some reason with a particularly noisy source, this option should make for a more enjoyable experience.
The one exception that we found in the PE7700's otherwise good contrast performance was that, due to the low gamma setting in "Cinema" mode, it tends to crush the low end of the grayscale (from 20 IRE to 0 IRE) into one shade, which reduces shadow area definition, causing it to become muddy and unclear. Attempting to correct for this by adjusting brightness and contrast settings tends to wash out the image and turn black to gray. Fortunately you can opt for the Home Theater mode instead of the Cinema mode. This boosts gamma and gives better separation in the bottom end of the grayscale. We would encourage you to evaluate each of the PE7700's color profiles rather than selecting one based on the name it was assigned.
The PE7700 includes BenQ's new SensEye technology, which is supposed to automatically optimize contrast, sharpness, and color balance to provide the best possible viewing experience. Color is indeed impressive on the PE7700; the projector easily differentiates between similar shades of the same color, and avoids oversaturation while still maintaining richness and realism.
BenQ's onboard video processing makes for a good image, with some room for improvement in deinterlacing ability, which is perhaps the PE7700's only major flaw. When fed an interlaced signal, there was a substantial amount of breakup in panning and motion scenes. We achieved much better results by switching to progressive scan output on our DVD player.
Scaling is a different story. When HDTV 1080i was downscaled to the PE7700's native 720p, the picture was clean, bright, and sharp. When upscaling 480p material, the picture was relatively clean and clear, though still slightly soft.
Overall the PE7700's onboard scaler outperformed the optional upscaling on our DVD player, but did not quite match the results of the DVDO iScan HD+ video processor. If you have a DVD player that lets you rescale the signal to 720p before outputting it, try switching back and forth to see which set up produces the better image. If you were already planning to purchase the iScan HD+, you will notice some improvement; however, the projector's onboard scaler is still of very high quality, and it is questionable whether the incremental image sharpness you get from the iScan HD+ is worth its price.