"Patrick Turner"


Lynn Olson says Quad speakers, along with many others have considerable
resonances.



** He is a liar - just like the ****ing, asinine Turneroid.




............... Phil

"Patrick Turner"


Cone speakers have notoriously bad resonances in their cones, and
ESL have resonances in their panel diaphragms.


** Massive lie.





............. Phil

In article , Patrick Turner
wrote:


"Dave Plowman (News)" wrote:

In article , François Yves
Le Gal wrote:
How do you get 'resonances' in a speaker without, effectively, a
box?

Well, from the frame, the diaphragm, the stator, nearly everything.
You don't need a box in order to get resonances: how does a tuning
fork work?

A tuning fork is designed to resonate. Box speaker makers hopefully
try and get rid of the natural resonances that these have.

You'd have to try very hard to get resonances within the audio band
with the panels fitted to the Quad design.

Lynn Olson says Quad speakers, along with many others have considerable
resonances.

It would interesting to know what he means by 'considerable' in this
context. I would have expected that the level of resonances in an ESL tend
to be much smaller than in conventional cone-and-box speakers.

What is a tightly stretched diaghragm? Its a kind of drum without body
of air concealed nearby. It will have resonances.

Agreed. However the skin resonances are essentially transverse. They
can be easily excited by being hit at a single point by something like a
drumstick. However in the ESLs the forces tend to be applied in a way that
distributes them across the surface. Thus you should find that the 'skin'
resonances don't get exited to the same extent. Exception being the LF
resonance of the skin.

The mass of the diaphram is also quite small, so the amount of kinetic
energy stored in the movement in an ESL is, I suspect, much less than in a
conventional speaker. and I suspect the elastic energy stored in the
diaphragm restoring forces is also quite small. Don't know the thickness
or mass/area of drumskins, but I'd suspect they have much higher values
than the diaphragm in an ESL as people hit drumskins, but try to avoid
doing this with ESLs. :-)

So from an 'academic' POV you can say the resonances have a physical basis.
But in practice, they may be far smaller in an ESL than in typical
conventional speakers. I can't recall seeing any 'waterfall' decay
measurements of this offhand, but I'd suspect they show the difference OK.

Slainte,

Jim

--
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Audio Misc http://www.st-and.demon.co.uk/AudioMisc/index.html
Armstrong Audio http://www.st-and.demon.co.uk/Audio/armstrong.html
Barbirolli Soc. http://www.st-and.demon.co.uk/JBSoc/JBSoc.html

Stewart Pinkerton wrote:
On Mon, 21 Mar 2005 17:40:48 +1100, "Phil Allison"
wrote:


"Stewart Pinkerton"

Dave Plowman

You'd have to try very hard to get resonances within the audio band with
the panels fitted to the Quad design.

Not at all, in fact there are noticeable resonances in the bass region
from the diaphragms, plus mid-treble frame resonances.


** And this Vile Pommy Nazi claims he does NOT *posture* here as a Quad
ESL expert ???


And this ignorant dozy ocker doesn't agree with what I said?

He is not , just a misplaced pommie ******* .. would you like it back ?

Stewart Pinkerton wrote:
On Mon, 21 Mar 2005 17:43:17 +1100, "Phil Allison"
wrote:


"Stewart Pinkerton"

How do you get 'resonances' in a speaker without, effectively, a box?

The same way you get resonances in any drumskin, plus the frame isn't
too rigid.


** More utter bull**** from a know nothing ******.


You really are a dumb ****, aren't you Phil? Care to explain why an
ELS diaphragm is *not* like a drumskin? Or how the typically skinny
frame can be totally rigid? Too many tinnies again?
Careful now , he once bought some Quads . ( ask how long it took to get
the money back )and know everything about them
"rolls eyes"

In article ,
Stewart Pinkerton wrote:
How do you get 'resonances' in a speaker without, effectively, a box?

The same way you get resonances in any drumskin,

The resonance from a drum depends very much on the tension of the skin.

plus the frame isn't too rigid.

Doesn't need to be.

I'm not denying there could be *some* resonance - as with everything if
you have sensitive measuring equipment - just that they're insignificant.

--
*I didn't fight my way to the top of the food chain to be a vegetarian.

Dave Plowman London SW
To e-mail, change noise into sound.

"atec" = " a**** "

He is not , just a misplaced pommie ******* .. would you like it back ?


** My grandparents were originally from the UK.

But a ******* like "a****" has no idea who his father or mother were at
all.





.............. Phil

"atec" = "a****"

Careful now , he once bought some Quads .


** For 26 years I owned, constantly used, very occasionally repaired and
regularly demoed to friends a pair of ESL57s.

It brought about decisions by them to purchase a total of 6 more pairs of
ESL57s.

Bet "a****" has never even heard them.




.............. Phil

Phil Allison wrote:
"atec" = " a**** "


He is not , just a misplaced pommie ******* .. would you like it back ?



** My grandparents were originally from the UK.

But a ******* like "a****" has no idea who his father or mother were at
all.





............. Phil


you seem lost fill . cant find your penis ?
maybe you dole cheque hasn't been delivered so the supply of $4.99
cask wine has run out ?
either way the point in your post is lost...
perhaps you might try this time in your reply rant / threaten to make
a point ...
Oh and did I mention your an utter and total f&ckwit / pillock /****** ?

Phil Allison wrote:
"atec" = "a****"


Careful now , he once bought some Quads .



** For 26 years I owned, constantly used, very occasionally repaired and
regularly demoed to friends a pair of ESL57s.

It brought about decisions by them to purchase a total of 6 more pairs of
ESL57s.

Bet "a****" has never even heard them.




............. Phil



your point fill your point
keeps getting lost somewhere in the ether ...
perhaps if you "realy" could afford such speakers and other HiFi toys
we as a group might offer you more right of passage (that Tandy stuff
you got at the dump doesn't count), of course that would require some
effort on your part not to be an utter ****** / pillock /tosspot .