Why the lack of 10" coaxes?

[winslow]

Been looking for a nice 10" coax, but there are very few on the market...seem to go from 8s to 12s and skip over the 10s. Eminence, Radian, Ciare, and Beyma seem to have them. Just odd that BMS (who has no 10s), 18Sound, B&C, P.Audio, etc don't make them...I know B&C has some in the older catalogs, but nothing current.

[adason]

not the case with radian, they have 10"
expensive though

[adason]

Radian Audio 5210 10 inch Coaxial Speakers - Radian Dual Concentric 5210 10" time aligned coaxial speakers. Radian 5210 coaxial speaker - Radian 5210 coaxial speaker handles 375 watts RMS. Radian 5210 10" coaxial driver is available here. Radian coax

[lousymusician]

Originally Posted by adason

Radian Audio 5210 10 inch Coaxial Speakers - Radian Dual Concentric 5210 10" time aligned coaxial speakers. Radian 5210 coaxial speaker - Radian 5210 coaxial speaker handles 375 watts RMS. Radian 5210 10" coaxial driver is available here. Radian coax

The Radian is also available in a high-Q version for open baffles from Hawthorne Audio:
Sterling Silver Iris OB 10 Coaxial Unit [SSI-OB-10]

And a much less expensive Eminince-built 10" coax from Hawthorne:

Silver Iris OB 10 Coaxial Unit [SI-OB-10]

I've heard neither myself.

Bill

[Cal Weldon]

To answer the OP, I think it's because the coax is used two different ways. One as a stand alone unit where smaller than a 12" woofer might not be up to the job and secondly used with a back-up woofer where they can take advantage of the smaller cone for break up reasons and not have to worry about bottom extension.

My 2¢

[phivates]

maybe bigger is better? Like 1.4 throat hf drivers thanks to 3" vc on 12" woofers frinstance? That's what I want. I think.

[googlyone]

Winslow. Not sure about the oem's reasoning in their product lines. I hazard a guess that there is a point of diminishing return on shoehorning (haha) the horn into the magnetic assembly of the bass driver.

Ultimately the bass driver needs to be reasonably matched to the horn. If you need to add in an extra bass driver for the low end, what is the benefit of using a coax driver?

Anyway...

I have a pair of beyma 10xc25 coax drivers that are in the queue to be played with. Initial tests show that (as with every other beyma spec I have verified) the published response is remarkably close to actual. Happy to share as I progress though this will be a background task.

[winslow]

Googlyone, that would be incredible.

I am a bit skeptical on the radians...curves are too smooth to believe and the published numbers on the woofers are a bit different than what I've seen tested. And the eminence isn't received that well. How is the Hawthorne different than the beta 10?

Why not a 12? The physically won't fit. Wish they would though.

[RockLeeEV]

Bob from CSS mentioned something about a 10 inch coaxial being developed a few months ago. Perhaps he can offer some more details?

[winslow]

High efficiency?