Commerce... (Off Topic)
by Bert 
, Tuesday, December 18, 2007, 11:18 (5966 days ago)
http://www.teresonic.com/technology.htm
I was just wondering, where would the Swing be on that list or even the Orphean with their 114dB sensitivity.... :confused:
Must be very alone at the top with a huge gap below that for sure! :wink:
Bert
--
BD-Design - Only the Best!
Failed commercial
by PeterSt. 
, Netherlands, Tuesday, December 18, 2007, 11:44 (5966 days ago) @ Bert
Because this is what it says there :
Note that speaker designs such as horns and electrostatics are mostly excluded from this chart.
Sorry ...
But you still could be right though. 
Failed by....?
by Bert , Tuesday, December 18, 2007, 11:50 (5966 days ago) @ PeterSt.
Note that speaker designs such as horns and electrostatics are mostly
excluded from this chart.
I have seen that line, you can also read:
Horns and electrostatics 
where left out the list because these are better?
I think it proves my point anyhow... 
Bert
--
BD-Design - Only the Best!
Failed commercial
Because this is what it says there :
Note that speaker designs such as horns and electrostatics are mostly
excluded from this chart.Sorry ...
But you still could be right though.
Yes Peter...
But looking to that list there are quite some electrostatic speakers and some speakers including horns appearing.
I think they are there because of a high price tag and showing lower efficiency.
GC
Failed commercial
by PeterSt. , Netherlands, Wednesday, December 19, 2007, 13:49 (5965 days ago) @ GC
But looking to that list there are quite some electrostatic speakers and
some speakers including horns appearing.I think they are there because of a high price tag and showing lower
efficiency.
mostly
Hahaha GC. The good commercial doesn't lie, but you don't see that small print anyway.
Peter
Failed commercial
But looking to that list there are quite some electrostatic speakers and
some speakers including horns appearing.I think they are there because of a high price tag and showing lower
efficiency.
mostly
Hahaha GC. The good commercial doesn't lie, but you don't see that
small print anyway.Peter
Peter my friend .... 
I caNot even see the small letters you write here 
GC
Commerce...
Ooooops
What sneaked into that speaker?
A notch, a 'responsible' editor, a typo or is my michrophone a storyteller when I read the plots from an untreated unfiltered Lowther?
+- 3 db!
![[image]](images/uploaded/image391.jpg)
Merry Christmas
GC
Edited:
Oh found out my mike is crazy. :shame: Now my Swings shows 1Hz - 1 GHz +- 0 db! :shame: :shame: :shame: :shame: :shame: :shame:
Edition 2:
Opaaaa!
![[image]](images/uploaded/image392.jpg)
Sorry not my fault.
However a nice Bert horn would cure the main part of the famous PM6 (older diaphragme.)
Here is an on axis plot of DX4
![[image]](images/uploaded/image393.jpg)
I'm not adressing that Lowther is bad. It's not for me to say even having owned PM4's running back and front loaded at the same time.
There is something that Lowthers has others don't
Commerce...
by robmatthew , Wednesday, December 19, 2007, 02:41 (5966 days ago) @ Bert
I wonder about their reported sensitivities. Is the DX3 capable of over 100dB unless it is front-loaded? Even rear loading only brings up the lower end, right?
Bob
Commerce...
I wonder about their reported sensitivities. Is the DX3 capable of over
100dB unless it is front-loaded? Even rear loading only brings up the
lower end, right?Bob
I would not expect at least looking to the small open gab in their boxes, which of physical reasons caNot be so broadbanded, that they have no significant cabinet amplification and help for the very low efficiency of the driver itself at 20 - GCx Hz.
A Bert horn will keep the driver *Lowther linear* down to say 200 Hz adding a final amplification of 18 db, but under that frequency, the port visible should then at 40 Hz i.e. contribute with at least 36 db given the stated liniarity should be true. A port caNot do that even there is a horn behind it.
More likely is that the driver is smoothened (flatened) by an internal filter? And of course there is more to this cabinet such as Helmholtz resonators, but they are antiphase absorbers, not amplifiers.
Something does'nt fit between data stated and real life if we talk about a naked unfiltered driver. :wink:
But one thing is physical possiblilities, another thing is *marketing*. 
However the Teresonic speakers might shine anyhow.
GC