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Old 13th September 2013, 03:21 AM   #11
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thanks for the nice link!
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Old 13th September 2013, 03:52 AM   #12
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Yes, remove dust cap and run wires through pole piece. Just an idea, I don't refer to any specific driver. This one looks pretty good for instance GRS 4FR-8 Full-Range 4-1/2" Speaker Pioneer Type A11EC80-02F 292-434
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Old 13th September 2013, 05:07 AM   #13
ScottG is offline ScottG  United States
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Quote:
Originally Posted by noviygera View Post
speakers exist: Boenike Studio 12
AUDIOMANUFACTURE BOENICKE AUDIO Studio 12 STUDIO MONITOR

they question is who makes the drivers and who resells them.
?

http://www.tb-speaker.com/detail/1230_04/w5-1701s.htm

or..

http://www.tb-speaker.com/detail/1230_04/w6-1530s.htm




..looks more like the latter of the two.


Which is independently measured here:

http://www.hobbyhifiladen.de/Lautspr...1530::901.html

Plus, it seems it's the only place you can purchase it from.. For that kind of money go back to the CEntrance speakers..
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Old 13th September 2013, 07:13 AM   #14
OllBoll is offline OllBoll  Sweden
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If it uses a dome tweeter then you'd probably have to get one with a waveguide or where the cone acts as a waveguide since otherwise there probably wouldn't be a smooth transition in directivity.

Or you could buy a normal cone driver with phase plug and then just put a small cone tweeter in front of it and get this result =)

After filters the tweeter has a 12dB/oct acoustical roll-off @ 3 khz and the mid has a 6dB/oct @ 3 khz.

This is a dipole though so might not be as smooth with a monopole.
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Last edited by OllBoll; 13th September 2013 at 07:19 AM.
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Old 13th September 2013, 02:25 PM   #15
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ScottG,

agreed with your last post.

thanks.
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Old 13th September 2013, 02:29 PM   #16
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Looks like this is the only option: B&C 5FCX44 5" Professional Coaxial
B&C 5FCX44 5" Professional Coaxial Speaker 70 x 70 8 Ohm 294-5760

or for the 6", FaitalPRO 6HX150
FaitalPRO 6HX150 6" Neodymium Coaxial Driver 8 Ohm 294-1192

thanks for all your input guys!
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Old 13th September 2013, 04:03 PM   #17
ScottG is offline ScottG  United States
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Quote:
Originally Posted by noviygera View Post
Looks like this is the only option: B&C 5FCX44 5" Professional Coaxial
B&C 5FCX44 5" Professional Coaxial Speaker 70 x 70 8 Ohm 294-5760

or for the 6", FaitalPRO 6HX150
FaitalPRO 6HX150 6" Neodymium Coaxial Driver 8 Ohm 294-1192

thanks for all your input guys!
Actually when you move into pro units with concentric compression drivers you'll have more options, but they aren't soft domes.

http://profesional.beyma.com/ingles/...XIAL%20DRIVERS

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Last edited by ScottG; 13th September 2013 at 04:07 PM.
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Old 13th September 2013, 04:07 PM   #18
ra7 is offline ra7  United States
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Tannoy makes some nice coaxials that you can buy as spare parts. All the pros, Beyma, BMS, Radian, B&C have coaxial units.
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Old 13th September 2013, 05:53 PM   #19
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Yes, the pro stuff. So I guess the non-metal (keytone, polyester, etc.) diaphram would be the closest thing to the soft dome tweeter.
So that leaves me with
Beyma 5CX200Fe -- looks easy enough to crossover
B&C 5FCX44 -- similar crossover idea as beyma
FaitalPro 6HX150

BMS frequency response looks like it's gonna need a notch filter for the coax woofer.
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Old 13th September 2013, 06:42 PM   #20
ScottG is offline ScottG  United States
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Quote:
Originally Posted by noviygera View Post
Yes, the pro stuff. So I guess the non-metal (keytone, polyester, etc.) diaphram would be the closest thing to the soft dome tweeter.
So that leaves me with
Beyma 5CX200Fe -- looks easy enough to crossover
B&C 5FCX44 -- similar crossover idea as beyma
FaitalPro 6HX150

BMS frequency response looks like it's gonna need a notch filter for the coax woofer.

Even the poly diaphragms (and surrounds) don't sound like soft domes.

(..obviously in a general sense they sound alike, but the same is true for metal diaphragms as well.)

-and "metal" doesn't always sound like metal.


As far as being well engineered, the KEF replacement parts that ra7 mentioned are quite likely the very best available within certain excursion/power limitations (..ie. loudness limited). Scroll down and look at Zaph's measurement of the KEF Q100 results:

Zaph|Audio

Also see gornir's measurements of the KEF SP1632:

www.audioexcite.com KEF SP1632

Note that the midbass/midrange portion doesn't have the typical "ringing" (or high q "bell" resonance of most metal diaphragms).

..both are more of the midrange-up variety than midbass, but KEF has some midbass coaxials as well (that are a little larger).

You searched for kef | Speaker ExchangeSpeaker Exchange
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