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-   -   Is it possible to cover the whole spectrum, high spl, low distortion with a 2-way? (https://www.diyaudio.com/forums/multi-way/334757-cover-spectrum-spl-low-distortion-2-a.html)

Ro808 16th June 2019 03:39 PM

It does.

http://www.loudspeakerdatabase.com/B..._(Photo_1).jpg

The cone is different though, especially around the dustcap.
Moreover, despite its generous X-max, the Beyma wouldn't appreciate port tuning at 22kHz.

They pretend to use TAD, but that presumably applies to the comp. driver.
The only TAD woofer with a similar cone/dustcap is the TL-1602, but that one has a foam surround instead of a triple roll.

Ro808 16th June 2019 06:46 PM

Quote:

Originally Posted by daemonsgr (https://www.diyaudio.com/forums/multi-way/334757-cover-spectrum-spl-low-distortion-2-a-post5824881.html#post5824881)
Are Faital CD better in terms of quality (for hifi I mean) than beyma for example? Something crossed around 1khz.

It depends on your application.
Beyma is on par with Faital quality wise.
Beyma also offers a few low priced large format cone drivers that are still very good, whereas Faital's portfolio is smaller and more aimed towards the mid and higher end of the market.

I like Beyma 1" compression drivers very much, but would prefer Faital for 3" diaphragm drivers.
The Faital 3" drivers are very hard to beat.
I'll check out the HF1440 shortly.

Ro808 16th June 2019 08:18 PM

The CP-380/M, CP-385Nd have been benchmark 1" drivers for years.
They sound good, measure well, play lower than nearly any other modern 1" driver, without nasty sonic artefacts.

The newer drivers (CD-10Fe/N, CD-10Nd, CD-11Fe, CD-11Nd etc.) are also very good.
For hifi the difference is probably neglectable.

The CD-11Nd with PM4 polymer diaphragm is interesting:

https://www.beyma.com/resizer/?img=s...&format=detail

https://www.beyma.com/resizer/?img=s...&format=detail




The 44mm Faital drivers would work crossed around 1kHz, especially the HF108 and HF10AK.

Ro808 16th June 2019 08:56 PM

4 Attachment(s)
daemonsgr, I assume you are located in the UK?

This is probably the best driver currently available in Europe at €65 each, if you order a pair.
The only possible downside is the radial phase plug, that usually works better with Tractrix and similar horns.

Ro808 16th June 2019 09:17 PM

This is the diaphragm of the HF10RK:

https://www.parts-express.com/Data/D...-1017_HR_0.jpg


It'll sound in accordance with its looks: velvety smooth, or like someone commented: painfully smooth.

daemonsgr 16th June 2019 10:26 PM

Quote:

Originally Posted by Ro808 (https://www.diyaudio.com/forums/multi-way/334757-cover-spectrum-spl-low-distortion-2-a-post5825406.html#post5825406)
daemonsgr, I assume you are located in the UK?

This is probably the best driver currently available in Europe at 65 each, if you order a pair.
The only possible downside is the radial phase plug, that usually works better with Tractrix and similar horns.

wow! better than more expensive faital models?

does the same (bayma vs faital) follows the woofers? I was aiming for a 15p80nd (got some bad comments for the 2226h I had as a first choice) but do faital get better quality sound and response?
thanks

camplo 16th June 2019 11:53 PM

Limmerhorns

camplo 17th June 2019 12:16 AM

How can MTM be a favorable config when the woofers are spaced farther apart vs say a TMM. When ctc is of two drivers producing the same freq. range, and the wavelength becomes shorter than the distance of the ctc, are there not negative side affects?

Ro808 17th June 2019 12:34 AM

Quote:

Originally Posted by daemonsgr (https://www.diyaudio.com/forums/multi-way/334757-cover-spectrum-spl-low-distortion-2-a-post5825486.html#post5825486)
wow! better than more expensive faital models?

No, it's not better than the more expensive Faitals, but it's good especially at the current sale price > it's discontinued.
You won't find a similar Nd driver for that kind of money.

After my previous post I came across a recent DIY project on a French forum.
The thread starter did exactly what I would strongly discourage: mount the HF10RK to a diffraction horn (JBL 2370 clone).
Evidently, it didn't work out.

Ro808 17th June 2019 12:49 AM

Quote:

Originally Posted by camplo (https://www.diyaudio.com/forums/multi-way/334757-cover-spectrum-spl-low-distortion-2-a-post5825560.html#post5825560)

This is a very good Limmer horn and used in numerous diy projects and kits in Germany, one of which is called "Tricolore":

http://lh5.ggpht.com/_QygwUU8SQZ8/Su...00/lim-033.jpg


If you search "Limmer 033", you'll find many measurements with different drivers.


It was also used in this (German) high end loudspeaker:

http://www.exoticaudio.dk/uploads/im...er_Job%208.jpg


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