about driver Q and how its not relevant to anything

[sreten]

studying stupidity of other people is the most important thing.

figuring out the right answer is kindergarten stuff - its too easy.

My ....... you are really asking for it are you not ?

Utterly tedious attitude for a DIY forum. I suggest you go elsewhere
where they might believe you have any real idea of what you are
talking about rather than than bashing the uniformed.

I've seen no evidence you have any idea what the right answers are,
and from what I can tell the fact you think you know the right answers
is only showing your own "stupidity", QED.

We do get very bored very quickly with pointless posters.

🙂/sreten.

 

[Andy G]

Don't say I didn't warn y'all !!

 

[MJK]

If you don't respond to his shock style of posting, he will eventually go away or modify his approach. If you poor fuel on his fire he will only enjoy it more and provide even more outrageous statements to stir the pot.

It is an attempt at a Romy the Cat style of communicating with one difference. Romy usually has something interesting to say so if you can read behind the amusing caustic delivery there is sometimes a nugget of good information. Vas on the other hand has the caustic down but there is nothing of interest to read.

It is up to the forum to determine if his approach is to be encouraged or ignored. Vas is not really providing any inputs, he is just throwing out conjecture to see if anybody can provide an explanation as to why his latest brain fart has any merit. He pops out the idea and we are expected to educate him by debating the engineering/physics, kind of a minimal effort lazy approach to learning. I am choosing to ignore him, it is not worth my time to respond to his off the cuff unproven theories. He can do the work to understand the basics himself, without my help and time. He will learn more and be better off doing the work himself.

If you agree with my approach, vote with your silence.

 

[nunayafb]

The Beranek referenced earlier derives box parameters using real physical driver characteristics such as those 2. Wilmslow Burhoe used these for all his boxes (EPI, Genesis)

Planet10, I did not get a chance to run out and get that book, but I will look into it just to expand my knowledge. Whether or not they are more useful than T/S parameters, well I guess I will find out. But T/S parameters are based on real physical driver characteristics, obviously, that is how they can be measured. Whether or not they are comprised of basic dimensions such as length (from BL) or if they are derived values makes no difference to me as an engineer, they are the parameters used to understand the behavior of drivers. The elasticity (spider,surround), damping, mass etc. are all physical parameters of the driver. When you measure a speaker you can't take it apart and test each component, that is why Thiele and Small arrived at the parameters they did, they answer all of the important questions.
As for you holding a speaker in you hand and acquiring any useful info about it, well I'll just leave it at I am skeptical. Just because I can't do it does not mean nobody can, however using high resolution equipment we can measure variations in parameters between two supposedly identical drivers. Maybe you could elaborate on what you are learning from visual inspection of drivers, as someone here thinks he can design an enclosure after holding a driver.


btw all I ever asked of V, was some indication that his theories could be substantiated. You are kind of backing his theories when he has not even read the book you are referencing.

 

[planet10]

Whether or not they are more useful than T/S parameters, well I guess I will find out. /QUOTE]

You get to the same place for small signal stuff (so all the T/S modelers are easier), but the real parms give an edge when you turn up the wick. I just use T/S myself. Beranek is more of interest to fill out background (be warned that the book is not error-free (even thou a standard reference)

dave