Reducing noise Cine 9 - 909 - Cinemax

Not the 909, the Cine 9. The same, but different. Decibel has a CineMAX, which is a Cine 9, which is what i also have on my ceiling. Not one person ever stated a 909 was dead quiet, i said Cine 9. You really need to understand the difference before you continue here.

The 909 has different software and does not have the sound reducing baffles installed that the Cine 9 does. The Cine 9 software controls the fans in much the same way your board does. Flashing the controller of a 909 with Cine 9 software causes the fan control to run at the lowest speeds considered safe by Barco to still provide adequate cooling.

I have both a 909 and a Cine 9, and with the 909 software the fans run full speed at all times. After flashing that controller with Cine 9 software the fans run slow, and it is very quiet. I have explained this very clearly many times in the past, and others have also confirmed it as true.

The temps here in summer exceed 45°C, and in winter i run the air conditioner if its cold. But that is all pretty much irrelevant, the heat inside the set does not seem to have an affect on anything if it is set up correctly.

There was no flaming at all, you just took it that way and ignored what was said that did not suit your side of the argument, i still cant understand why. I said this item of yours had suitable applications, but you continued down that same path, attacking the one comment i made in regards to a projector you claim to have no experience with, yet you pushed the point. What did you expect i might do if i dissagree with you and have legitimate concerns regarding the use of this item?

If you bother to read over it again you will see where i clearly stated that i would use something like this in a different application, and i also stated it would work very well for other things. You have ignored this and for some reason you continue to ignore it, then you lose your top because you think im saying your item is no good. At no point did i ever say that at all, i made it pretty clear it had practical uses.

But what youre missing here, and it seems to be by choice because i said it so many times, my statements are against this device in a Cine 9, nothing else, and are as such because youre spending a heap of cash to achieve very little. If it was a loud projector with no form of fan speed control, and i gave the Sony 1292 as an example, this would be quite a good thing, and you are adding something of value to the set, and i dont think €85 is unreasonable at all if it can silence a loud machine. My personal opinion is that €85 to add the ability for user adjustment to a projector that allready has automatic fan speed control is a hell of a lot of money to spend, and i also have doubts that itll make the set any quieter. That is a very legitimate statement coming from someone that has one on their ceiling.

The above paragraph has nothing to do with what effort you put in or what you plan to sell for, and at no point did i ever suggest the price was unreasonable. You can interpret it that way if you like, but that is your problem, not mine, it just means you only read the parts you wanted to see. You still ignore any part of my comments that suggest its a good idea with other suitable applications. Again, your problem. You need to READ what is said before you form a one track opinion.

You can not sit there and tell me or anyone else that your fan controller will make a Cine 9 quieter, because for one you claim to have not used one, and two you have not done any testing on one to know if the fans can safely be run at lower speeds, youre assuming they can, because you have experience with another model of projector that does not need the fans to spin the speed they do, which is fine, and im not questioning that, hence why i stated this device has suitable applications.

And yep, dead right, ive said it a heap of times that NECs were a fair cut above the rest in many ways, and im not the only one to say that either. They have the absolute best convergence and geometry of ANY available CRT projector, and theyre very reliable. If you dont like that, well mate thats tough luck, its a fact. Its all your problem if you want to take the written word to heart, no one in their right mind would give a hoot what i said, and if they couldnt take a bit of banter, which is all it was in most instances, tough luck.

As for acceptance, honestly mate this is the internet... Im too old to care about who likes me and who does not. It's their problem. What other people think about me is none of my business.

So some serious on topic questions for you now:

Do you believe the fans in a Barco Cine 9 can be run slower than stock? Not talking 909 here, this is Cine 9 only.
Have you or someone acting on your behalf done testing on a Cine 9 to support this theory?
If the fans cant be made to run slower than factory speed, how is the SPL reading likely to change between your controller and the factory original design?

There he is, the voice of reason. Thank you for the clarification.
I knew that there are two versions of that projector but did not know they differ in noise/fan controller.
So my guess about two versions was right.
In this case, i could think of recommending the Cine 9 fan controller board to Decibel.
If my solition is cheaper or the other controller isn't available...
Of course there are other reasons, but i want to keep it this way:
If someone asks me to buy a controller set, he can have it.
But I'm not arguing with people about a controller (the barco) i hardly know anything about.

Is it possible to set all desired values of that cine 9 controller? Is it even temperature controlled?
Regards, Julian

Guys I'm sorry to little part in the discussion despite my name is continually repeated.

I write little due of the language difficult.
I read and write with the help of a translator. Sorry again.

My projector is much more silent than any I've owned. But I can not say that's completely silent. My dream is to lower the noise to almost zero.
It is true that when run the film I have the perception that the projector does not make any noise, but if the sound of the film drops to low levels the fans start to be heard.
It would be nice that don't might hear it even in those situations. The most immediate solution that came to my mind is the replacement of standard fans with more modern and quieter models that have an airflow similar to the standard fans.
The SilenX that I mentioned is accredited with higher air flow than standard.
Unfortunately has a thickness only compatible with one of the three on the back of the projector.

The interface developed by Julian is very interesting just to monitor the internal temperatures of the projector and if they change only by replacing the fans and leaving the management of the fans to the integrated system as standard.

Nice to see you're still interested.
I repeat: I do not know what type of controller the Barco uses internal.
But i would propose the following: If you buy the controller i build, you're gonna get the controller with sensors and Android app.
You can use my controller to monitor the temperatures, no problem.
But if you connect the fans to the Barcos controller you cannot monitor the fan speeds (which my controller reads as power percentage).


A question: Does the Barco controller use any temperature sensors? If it temperature controls the fan speeds, it must use a sensor
on every heatsink. If it does not, it is not temperature controlled.

And if it does use sensors, there must be a way of reading out the measured temperatures, as well as the fan speeds.
Are the fans controlled independent from each other? I'd check the Barco controller software first and if it does not offer
fan speed and temperature read outs... well i can help you with that. 
And believe me, freely adjustable goal temperatures are a very nice thing, too.

I use Cougar HDB fans in my projectors and highly recommend them. Thanks again to Nashou who recommended them to me.
SilenX kind of "optimize" their noise figures, at least that's what i read somewhere. I'd be picky with numbers like 14dB, too good to be true.

Regards, Julian

There is certainly a sensor of temperature and can be displayed on the screen the internal temperature of the projector.
But there isn't possibility of manage the fans controller system.

Theyre managed primarilly by the controller, and Barco went to significant lengths to ensure these projectors were as quiet as possible.

Have you considered a Hush box? You could than use Julian's controller to control the temperature in the Hush box. This would be a very good setup with monitoring different parts of the Hush box. Run fans in different parts of the Hush box into the ceiling.