QA-2500 with 60:1 contrast ratio?

winksplace · 21st February 2006, 12:11 AM

I bought a QA-2500 off of eBay for $199 because everybody said it was the Holy Grail of projection panels with a 150:1 contrast ratio and 1024x768 resolution.

I downloaded the manual and the specs in the back show a contrast ratio of 60:1 typical.

Whats up with that?

winksplace · 21st February 2006, 12:30 AM

Sharp 2500 Projection panel!

This thread shows it at 200:1

Whats the deal?

v1d9uy · 21st February 2006, 02:53 AM

uh well all i know is what iv read here and everyone here says its 200:1 so ... i dunno but yer right supposadly it is the best .. and i would have paid 199 to so it was a good deal iv seen them go for over $400 on ebay .. and even more locally

winksplace · 21st February 2006, 03:03 AM

Yeah, I thought so. I bought it within 1 hour of it being listed. I just got lucky.

I wish I knew about the contrast ratio though. I already have an Ask Impact WSX that does 100:1. This is off-topic but I also have a 1650 that the video looks . . . fuzzy on the edges when people move. Is it broken or is that normal for a 1650. I think it must be screwed-up because people seem pretty happy with their 1650s. I couldn't watch it like that myself.

milihpen · 21st February 2006, 03:34 AM

Just wondering, but why is this panel so expensive? Please excuse my ignorance, but I have never dealt with this type of panel.

The reason I ask is that it is possible to get a 1280*1024 monitor with 500:1 contrast and 16ms response time for less than $130 on ebay, but you guys are saying $200 is a good deal for a 1024*768 panel with 60:1 contrast and 80-100!!!ms response time. Why is that a good deal? Is it because it doesn't need dissassembly, or what?

Once again, please excuse my ignorance.

v1d9uy · 21st February 2006, 03:38 AM

its a ohp LCD panel .. not a lcd monitor built in rca input + high res + svideo input plus no striping self contained and cooling
= $200 a good price vs the normal $400 for it on ebay and iv seen them go for $800 locally... also my sharp 1800 only has 40ms response time .. i play xbox andalot of movies on it and i get no ghosting .... my only complaint is the low contrast at 100:1
but i still like it

milihpen · 21st February 2006, 08:50 PM

Hm. Thanks for the explanation. Makes sense. I'd personally still go with a cheap monitor, but I guess it's all about your priorities and what you have to work with, right?

Thanks again for the explanation.

21st February 2006, 12:11 AM	#1
winksplace diyAudio Member Join Date: Jan 2006 Location: Missouri	QA-2500 with 60:1 contrast ratio? I bought a QA-2500 off of eBay for $199 because everybody said it was the Holy Grail of projection panels with a 150:1 contrast ratio and 1024x768 resolution. I downloaded the manual and the specs in the back show a contrast ratio of 60:1 typical. Whats up with that? __________________ ps - This is what part of the alphabet would look like if Q and R were eliminated.

21st February 2006, 12:30 AM	#2
winksplace diyAudio Member Join Date: Jan 2006 Location: Missouri	Sharp 2500 Projection panel! This thread shows it at 200:1 Whats the deal? __________________ ps - This is what part of the alphabet would look like if Q and R were eliminated.

21st February 2006, 03:03 AM	#4
winksplace diyAudio Member Join Date: Jan 2006 Location: Missouri	Yeah, I thought so. I bought it within 1 hour of it being listed. I just got lucky. I wish I knew about the contrast ratio though. I already have an Ask Impact WSX that does 100:1. This is off-topic but I also have a 1650 that the video looks . . . fuzzy on the edges when people move. Is it broken or is that normal for a 1650. I think it must be screwed-up because people seem pretty happy with their 1650s. I couldn't watch it like that myself. __________________ ps - This is what part of the alphabet would look like if Q and R were eliminated.

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21st February 2006, 02:53 AM	#3
v1d9uy diyAudio Member Join Date: Oct 2005	uh well all i know is what iv read here and everyone here says its 200:1 so ... i dunno but yer right supposadly it is the best .. and i would have paid 199 to so it was a good deal iv seen them go for over $400 on ebay .. and even more locally

21st February 2006, 03:34 AM	#5
milihpen diyAudio Member Join Date: Dec 2005 Location: USA	Just wondering, but why is this panel so expensive? Please excuse my ignorance, but I have never dealt with this type of panel. The reason I ask is that it is possible to get a 12801024 monitor with 500:1 contrast and 16ms response time for less than $130 on ebay, but you guys are saying $200 is a good deal for a 1024768 panel with 60:1 contrast and 80-100!!!ms response time. Why is that a good deal? Is it because it doesn't need dissassembly, or what? Once again, please excuse my ignorance.

21st February 2006, 03:38 AM	#6
v1d9uy diyAudio Member Join Date: Oct 2005	its a ohp LCD panel .. not a lcd monitor built in rca input + high res + svideo input plus no striping self contained and cooling = $200 a good price vs the normal $400 for it on ebay and iv seen them go for $800 locally... also my sharp 1800 only has 40ms response time .. i play xbox andalot of movies on it and i get no ghosting .... my only complaint is the low contrast at 100:1 but i still like it

21st February 2006, 08:50 PM	#7
milihpen diyAudio Member Join Date: Dec 2005 Location: USA	Hm. Thanks for the explanation. Makes sense. I'd personally still go with a cheap monitor, but I guess it's all about your priorities and what you have to work with, right? Thanks again for the explanation.

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