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DS1, EzPro700, LT81, and UP-800 = DLP Clones? Anyone Familiar With These Units?

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#1 of 1 OFFLINE   Nils Luehrmann

Nils Luehrmann


  • 3,515 posts
  • Join Date: Mar 21 2001

Posted August 17 2001 - 10:10 PM

I have been offered a Proxima DS1 projector, but I didn't know much about this projector so I've been doing some research and looking over various websites includeing AVS Forum, and Proxima's, but there really isn't much information out there.
What I did find is that apparently the DS1 is one of many clones including the CTX EzPro 700, NEC MultiSync LT81, and Plus UP-800. Looking at their respective stat sheets, they do appear to be very close, but I noticed some obvious differences and was wondering if they really are all clones?

1) The Plus and NEC models look identical, but don't appear to match the chassis of the Proxima and CTX.

2) The Proxima is listed as having the 1.3" DLP chip, but the Plus is listed as having the .9" DLP chip (I couldn't get info on what chip is in the NEC)

3) The Proxima, CTX, and Plus use a 270W Metal Halide lamp that produces 600 lumens and uses 380 watts, while the NEC is listed as having a 280W Metal Halide that produces 800 lumens and uses 400 watts.

4) The biggest difference appears to be in their advertised contrast ratios:
Proxima = 200:1 ANSI / 250:1 Full On/Off
Plus = 200:1 ANSI / 400:1 Full On/Off
NEC = 250:1 ANSI / 500:1 Full On/Off
(Couldn't find the published contrast ratio for the CTX)

All four of these projectors have many features that are the same though:

Resolution = Native: 800x600, Maximum: 1024x768
Aspect Ratio = 4:3 (SVGA)
Lamp Life = 1000 hours
Focus = Manual
Zoom = Manual, 1.3:1
Optional Lenses = No
Digital Zoom = No
Keystone Correction = Fixed
Lens Shift = No
Throw Dist (feet) = 3.9 - 39.4
Image Size (inches) = 24.0 - 300.0
Ratio (distiag image) = 1.6 - 2.1
EDTV/480p = No
Component Video = No
Video/480i = Yes
Digital Input = No
Personal Computers = Yes
H-Sync Range = 15.0 - 60.0kHz
V-Sync Range = 50 - 85Hz
Voltage = 100V - 240V
Audible Noise = 46.0 dB
Status = Out of Production

If it weren't for the other differences, especially the contrast ratios, I would agree that these projectors are most likely clones.

Anyone out there know for sure if these are clones of each other?

Oh, and if you have any suggestions for ideal set-ups, tweaks, calibrations, and/or additional equipment you might recommend - please respond at the following post: http://www.hometheat....ML/008048.html


Nils Luehrmann

WARNING: If I expressed an opinion that you might disagree with, please remember it is ONLY an opinion and "your mileage may vary".

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[Edited last by Nils Luehrmann on August 18, 2001 at 05:14 AM]

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