Check this ,although it is the smaller of the 3 ;the newest coaxials from Ciare.
http://www.ciare.com/pdf/catalogo/HX165.PDF
http://www.ciare.com/pdf/catalogo/HX165.PDF
CEILING SPEAKERS
These guys sell KEF, Visaton, and sonance, mainly designed for in-ceiling use.
The cheapest way is probably to buy a secondhand pair of KEF Q35 say? off ebay and discard the cabs. Free XOs to play with too.
These guys sell KEF, Visaton, and sonance, mainly designed for in-ceiling use.
The cheapest way is probably to buy a secondhand pair of KEF Q35 say? off ebay and discard the cabs. Free XOs to play with too.
Do you like dual concentrics?
Stereophile: Tannoy Churchill loudspeaker
http://stereophile.com/images/archivesart/tanfig7.jpg
John Atkinson:"In the time domain, the Tannoy's impulse response (fig.6) looks typical of a design that uses a high-order crossover. Indeed, the step response (fig.7) confirms my suspicion from the impulse response that the Churchill is not time-coherent, despite its use of a coaxial drive-unit that places the tweeter diaphragm close to the acoustic center of the woofer. The tweeter output arrives at the measuring microphone first, followed by the woofer output."
Stereophile: Tannoy Churchill loudspeaker
http://stereophile.com/images/archivesart/tanfig7.jpg
John Atkinson:"In the time domain, the Tannoy's impulse response (fig.6) looks typical of a design that uses a high-order crossover. Indeed, the step response (fig.7) confirms my suspicion from the impulse response that the Churchill is not time-coherent, despite its use of a coaxial drive-unit that places the tweeter diaphragm close to the acoustic center of the woofer. The tweeter output arrives at the measuring microphone first, followed by the woofer output."
I heard the tannoy dual concentric in a voight pipe at a diy speaker contest. Sounded quite good... it definitely had the coherence of a good full range driver. Produced good amounts of bass too.
The drivers were obtained from ebay... like James says, you can buy the ceiling speakers and pull the drivers from there.
The drivers were obtained from ebay... like James says, you can buy the ceiling speakers and pull the drivers from there.
An externally hosted image should be here but it was not working when we last tested it.
Reckhorn.com
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Heard Alpair 7 or 12 (10 will slot right in between -- i'm one of the lucky few that have heard them)?
dave
Sorry , I have no idea ! In France and Germany it is common to see Ciare's big woofers
selling on the web . What I found on the site is the address where to send this kind of (straaaaangeee) requests .
commerciale@ciare.com
selling on the web . What I found on the site is the address where to send this kind of (straaaaangeee) requests .
commerciale@ciare.com
The treble arrives first despite the tweeter coil physically being behind the woofer coil?
I don't know much about the Churchill as it is an export-only model but the typical Tannoy xover consists of a 12dB lo pass and a 6dB high pass, is that considered high-order?
Once upon a time Tannoy employed an all-pass filter to make their speakers time coherent. According to Tannoy engineers this was merely done to pander to the north-american markets obsession for time coherence at the time as it created more audible problems as it solved.
unfortunately ive not heard ANY of the MA drivers, and if i were to just go the whole hog and go FR im sure I would probably go with one of the MA drivers, since the few Fostex ive heard, whilst not coloured, have a certain 'flavour' to their sound. This is fine for acoustic/classical music, but i found them tiring to listen to.
I have to say im not all that au fait with the driver models, but i have looked at alpair5 or 6, for a wideband tweeter. This is mainly as im reluctant to increase the physical size too much, mainly due to the propensity of cones to break up and beam at HF. whilst a narrowing of polar response is a good thing, if implemented correctly, i feel that (maybe) a driver of more than about 3 or 4 inches could be larger than would be optimum (for me) with respect to beaming (or rather excessive beaming). hence my next project may be a 12 sub plus alpair 5/6 x-o about 300hz.
However, without a listen I couldnt say either way and what im saying is purely conjecture.
Is there any data available on the polar responses of the various MA drivers, so i could compare them? I have looked before but it turned up little, but that was some time ago
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saying that (above) a quick look at the MA page seems to show the alpair 5/6 to be unavailable, or at least i cant find it. 
seeing as the MA drivers may be difficult to find here in the UK, i might have to look at Jordans on wilmslow audio, although im not sure how they compare, similar as they are.
seeing as the MA drivers may be difficult to find here in the UK, i might have to look at Jordans on wilmslow audio, although im not sure how they compare, similar as they are.
luckily the term 'Dual Concentric' is also an actual, literal english term, typically formed from latin:concentric and greek:dual respectively.
In fact the term applies to windings in some electrical generators and motors...
I tend to define dual concentric as a tweeter NOT pod mounted, like many automotive speakers, and mounted either tied to the poleplate, (static concentric) and attached to the 'woofer' cone and inductively driven, (floating concentric).
strictly, what you say may well be true, since i only know of Tannoy inductively driven dual concentrics.
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