Single driver vs traditional 3 way loudspeakers

atmasphere9,806 posts10-14-2021 1:53pm

has that spiked center phase pulg which eliminates beaming.

This conclusion is false. What the phase plug does is prevent cancellation from one side of the cone to the other, so the highs generated can actually be heard. It does not prevent beaming at all; that is simply a thing if you have 'full range' drivers without a tweeter.

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Well I may have ead something in the descript about the odd spiked phase plug as helping eleiminate some beaming effect.
I vaguely recall now the Tang Band 2145 8 may have had beaming issues. 
I only had it testeda  few hours then boxed it up and shipped it back
I was unaware of this beaming effect at that time, 3 Months ago,
Its still a very accurate midrange speaker with great bass (considering it is a wide band) and has IMHO excellent highs.
I say IMHO , due to this prejudice that WBers lack the  ultra highs.
If you want ultra highs witha  WBer set up grab any hifi tweet and there you go you got it.
Lack of 20-40hz bass and ,,say 12K++ highs really is not a  issue with me as far as WBers are concerned. 
The mids in my WBer 2 way is a  voicing that i have not heard in any xover style speaker.
My guess is over the comming decades more folks will want to know  more about these WBer *things*.
Looked over the DavidLouis for about 3 years before I made purchase.
After 6 or 7 trial N error I found what I was looking for.

Well I may have ead something in the descript about the odd spiked phase plug as helping eleiminate some beaming effect.

It doesn't. It allows you to hear highs that you would not otherwise.


That is why any 'full range' driver is nicely supplemented by a tweeter, which might operate at only 10KHz and above. I've had them work nicely by having the tweeters firing to the rear so that if you are a bit off-axis, the tonal balance is still correct. When on-axis, if the speaker is far enough from the rear wall, the rear-firing tweeters will help the speaker play a more distinct image.

"That is why any 'full range' driver is nicely supplemented by a tweeter,"


Exactly. Any full range driver ( use pretty big cone) need to help in HF.
usually all driver Co , say ---16-20Khz, but don't say what is level down
6db or more, Actually  start to go down from  8Khz .Whizzer cone is stupid idea, yes is adding high , but is not control. sometimes is make sound too bright 

Arnold explain different in speaker using metaphor..

 https://youtu.be/cX6nxOmIAOQ

6db or more, Actually start to go down from 8Khz .Whizzer cone is stupid idea, yes is adding high , but is not control. sometimes is make sound too bright

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WEll 8khz or 10k hz, makes no difference. WE are really enjoying our WBers for their incredible unique midrange voicing.
Its very esay to add any tweeter for the 8khz - 15khz.
Any old tweeter will do.
But I demand 91/92db sens.
Again, not all whizzer cones are poor fidelity.
The DavidLouis VX8 somehow has cloned the AER/Voxativ design quite well.
And the sound is super.
Whereas the Tang band 2145 has no whizzer, has this unique aluminum phase plug which has very nice highs 12khzish,,,but if I recall (??) had some beaming going on.
Whereas the DavidLouis has no more beaming that any tweeter has beaming.
Tang Band has 2 models with unique spiked phase plugs to help eliminate beaming..
Which atmasphere didagrees.
If you read the cation, mentions unique PP spiked for better highs dispersion.
I plan to add the W3 1878 sometime in janurary.
Those lil guys aren’t cheap at $260/pair. Tang Band knows its their best and wants the cash.
The TB W4’s are $250 each and they are SELLING!!!!! = $500 a pair for a little 4 inch cone!!!!!! Worth it, as the magnet structure is a good bit heavier.
All I need is the W3, Will be a nice addition to the DLVX8 and DLW4.
Will add some nice rich sparkles to the highs.
Only 88db sens, =its ok, as the VX8 is 92 and W4 91db.
So 88 db will be perfect, as a back up voice to what I have now.
4 way speaker, maybe a 5 way. If you consider dual W18E001.s a ,,,let me add up all the drivers,,,

5 way speaker, but has 6 drivers in each channel.