Interesting John Watkinson Editorial

[Pallas]

You're getting too bogged down in the little itty bitty details here IMO. 🙂

You mean like sound and measurements? OK...

As digression; there is a bespoke purpose designed/tailored Active crossover for Tannoy Alnico Drivers..

Why would anyone want to start with such an antiquated part, when new ones are so vastly superior in every audible and measurable way?

I realize there's still some fogey-fetishism about that silly "pepperpot" contraption, but vastly improved cones, magnets (some of us prefer loudspeakers that don't demagnetize when you put power to them...), and phase plugs make the new ones far preferable devices through which to play actual music.

I have a 8" paper Sony driver that is remarkably like a Tannoy driver.

That looks like a widebander, not a concentric driver.

 

[graaf]

Sadly The KEF Coax efforts are erm Inadequate DC designs.
'Built to a price point you know' 🙄 Too many insurmountable issues with it's sound, by my experiences. A dead end product.

I see, so You think that they are quality compromised to a point that the low quality outweighs in practice any theoretical advantages of being coincident?

What are their main quality issues in Your opinion?

 

[picowallspeaker]

Kefir - Wikipedia, the free encyclopedia
😎

 

[graaf]

Kefir - Wikipedia, the free encyclopedia
😎

uhm ...ok.. what's the point? 😀

 

[picowallspeaker]

It may resolve some gastroentherical problems
😉

 

[graaf]

It may resolve some gastroentherical problems
😉

Oh, I see. Has it resolved Yours?

 

[graaf]

extensive measurements of some KEF recent UniQ coincident units:

http://medleysmusings.com/category/speaker-driver-tests/other-speakeer-driver-tests/

conclusion:

The benefit of having a coincident design is excellent. I’ve toyed with a few here and there, though, I felt the companies’ never quite got it right. So, when I first started testing the Kef drive units I didn’t expect much, to be honest. However, the previous Kef Uni-Q units I’ve tested (HTS3001SE & Q100) have proven to be very well designed. My results for the R300 drive unit show the same standard of performance. I took the time to listen to these along with the Q100 speakers I have and must say that I am now sold on Kef’s coincident driver engineering.

 

[Brett]

Hi
I didn’t measure all of them but I did measure the most likely suspects and found the B&C 8 inch to have the smallest level of artifacts.

Hi Tom, B&C make a couple of 8" coaxes: which model did you find best?