CurtPalme.com Home Theater Forum

[overclkr]

I smell bull****.

[BASPARLEUR]

hi;
i have buying 2 x " special simulation grade " green crt for my edge blending sytem (2x cine 9) ; the price is very high , but the result is stricly the same at p19 lug new ; the commercial position is very find ; imagine you have a cine 9 or other crt with numerous hours : when you put the new crt (simu) you does made a grinding period of 100 hours ; this method allows the non immediate comparison of the 2 products ; after a long way grinding you look at a new crt : effectively , it is must better than old crt ! it's magic !
i precise i am ingenior and i know perfectly process for have the best picture on barco products ;
i you want best results , use p19lug , new if possible , but at reasonnable price !!!
regards

[CasetheCorvetteman]

[BASPARLEUR]

hi;
this is not a claim ; just information for knowing the reality of things ; this crt "simu grade" work fine but not better than other new we can buy at middle price ; is it !

regards

[Nashou66]

Not to hi jack this thread but are you using as a blend processor?

Athanasios

[BASPARLEUR]

hi;actually we use two tv one 2450 . we have totally integrated it in cine9/909 electronic board ; 2450's are good parts , we just deplore an insuficient cms (general gamma and for each color ) for very high grade theater using ;
analog way built a new blender 4K we have probably many possibilities but the price is !!!
we hope tv one upgrade a little the possibilities of his blenders ;
regards

[Nashou66]

[HogPilot]

[ElTopo]

@ BASPARLEUR: Could you post some pics of your setup in a new thread ?

Would be very interesting !

[geisemann]

I will have the results posted here to check.

I am providing the new mods to my end users with the best setup . They will all get 3 versions of the mods with various BW limits to check for interference and overall picture quality. They will get a free mod for doing the testing as the more end user feedback the better so I can optimize the new design.


I have been working with some brand new op amps and semiconductors carefully optimizing the circuits to prevent noise and parasitic oscillations. The new mods just developed will be shipped soon in a week or so for testing and new side by side comparison .

It should be VERY interesting as I am making the HD BW over 4 times greater than the original Cine 9.

I will have the testers post here.

Greg

www.eisemann-theater.com

[Nashou66]

Greg check your e-mail.

Nashou

[CasetheCorvetteman]

[HogPilot]

[CasetheCorvetteman]

I tend to agree on the whole yes, although i always take such claims with a grain of salt, i also like to see evidence of claims, and i tend to call things as i see them.

I guess time will tell if the evidence is posted, however at this point if i go ahead with the mods i will most certainly be giving my honest opinion on them, based completely on what i see with my own eyes in my own situation. If indeed the claims turn out to be unfounded here with my setup, i wont be backward in saying so. For someone to make such a claim to me they would want to be pretty sure they could back it up!!

[HogPilot]

[CasetheCorvetteman]

Haha!! Itll be a while before ill be putting up a digital

I dont mind being the one to bite that bullet, and when i get some time i will chew like hell

[kal]

Greg is known for coming in and posting a bunch of percentage improvement numbers for his mods every time he had a new mod 'version' available (I think he's had 10-12 versions now), and when people question the numbers he never provided any sort of proof or how the numbers were created.

These announcement threads are no longer available here as Greg got upset a few times and asked me to remove posts where people asked questions (it was mostly Dave - Person99 he complained about ) or he would (and I quote) "proceed with a law suite if he keeps bad mouthing me".

I told him that nobody was bad mouthing, just asking questions and wanting proof of claims. I told him to sue away if he wanted to but that he was wasting his time and money. I told him that I wouldn't remove posts, and that if he wanted the posts gone, the entire thread would have to go, which I ended up doing at his request. I warned him that if he didn't want people asking questions, that he should stop posting unsubstantiated claims.

So here we are again. I expect another email from him soon stating that people are badmouthing him on the forum and that it's my job to do something to stop it. If this thread disappears all of a sudden, you'll know why.

Kal

[kal]

Greg is known for coming in and posting a bunch of percentage improvement numbers for his mods every time he had a new mod 'version' available (I think he's had 10-12 versions now), and when people question the numbers he never provided any sort of proof or how the numbers were created.

These announcement threads are no longer available here as Greg got upset a few times and asked me to remove posts where people asked questions (it was mostly Dave - Person99 he complained about ) or he would (and I quote) "proceed with a law suite if he keeps bad mouthing me".

I told him that nobody was bad mouthing, just asking questions and wanting proof of claims. I told him to sue away if he wanted to but that he was wasting his time and money. I told him that I wouldn't remove posts, and that if he wanted the posts gone, the entire thread would have to go, which I ended up doing at his request. I warned him that if he didn't want people asking questions, that he should stop posting unsubstantiated claims.

So here we are again. I expect another email from him soon stating that people are badmouthing him on the forum and that it's my job to do something to stop it. If this thread disappears all of a sudden, you'll know why.

Kal

[Nashou66]

I tried to keep my opinion out of this thread but I have to mention a few things here.

I don't think Greg will want this closed this time. I converse with Greg from time to time and he is Very helpful and knowledgeable about Barcos but has helped me with some Marquee things along the way. His EE background working and building communication satellites gives him an edge in High BW applications.

MadMrH is another person who i also talked to and he is a barco guy. I asked him about Greg's work and he said it is a definite visible and measurable improvement over a stock Barco. This was back when Andy was more frequent contributer to the forums. But I trust Andy so him endorsing Greg's work on his own Barco and his customers is all I need. Now with Case getting his mods we will know for sure what the improvements are.

I think most here have an issue with how Greg quantifies his claims by using % improvement which a difficult think to measure
with objective viewing.

Athanasios

[geisemann]

I know many folks get upset about trying to improve the old BARCO design and think its snake oil or bull. I am doing this more of a hobby now than a business so not trying to make a lot doing it.

I can fully respect that the end user really enjoy's their units like you would enjoy a old LP or old radio with a little static. They prefer the film-like quality of a picture but with new HD content these people are not the norm anymore. The mainstream folks who contact me want a sharp sharp unit with the contrast only a CRT can produce. No unit to date has provided the same contrast a CRT has in all modes of operation . CRT for simulation is still the norm and just been rated by the Air force as the best response. My military customer use CRT for flight simulators because they have to keep processing delay to a min. No digital has instant stick to screen response like a crt. A person who is serious about simulation always keeps a CRT for the most demanding pilots. Even hardcore gamers today use old CRT monitors over LCD flat screens.

Many people who did my mod set and I have made hundreds and hundreds buy now complained about the sharpness they preferred the older picture. One guy was Allen Gouger of AVS stated he wanted me to add a sharpness control to his HDMI board to make the picture more film like. So I made custom card just for him. However I have been focused on resolution of late and this my new goal to make the CRT as sharp as possible while removing the noise associated with new high BW circuits.

With the HD getting better and digital projectors getting better we have to squeeze every last ounce of BULL out of the unit as possible and I wont give a percentage however I can assure you a min of 4 times the BW and that is easy on a electronics design compared to a satellite where BW is massive on RF amps. Barco had a back end of 400 MHZ with the cine 9 not very good even for a audio amp. When many high end audio amps use a tube preamps there is a reason because they had a very high BW input stage. The reason is tubes have very little input capacitance.

However the fact is the design is quite old the opamps and other components were to cut corners for manufacturing. The simple interconnect cables between the RGB amp and RGB switcher has over 40PF of capacitance on a 1209 or Cine9. Any RF engineer or audio engineer will tell you at high frequency 1080P will tell you 40PF will easily bring down your BW.

I am a satellite RF engineer and work with high BW components all the time and many many many changes can be made. Just the cost is the issue and rework is very time consuming. The real limiting factor I can see from this point however is the components as things are made cheaper high end op-amps especially single channel needed for high BW are no longer being produced so you have to get creative. The consumer is getting cheaper and cheaper when it comes to consumer electronics and the components are too.

I hope that helps.

GREG



www.eisemann-theater.com

[kal]

Greg,

I don't think anyone is arguing that your mods don't make a difference. It's the claims you're making that people want more information on.

For example, the whole point of this thread (one you started if I may remind you) is your initial comment:

[kal]

Greg,

I don't think anyone is arguing that your mods don't make a difference. It's the claims you're making that people want more information on.

For example, the whole point of this thread (one you started if I may remind you) is your initial comment: