Is it possible to cover the whole spectrum, high SPL, low distortion with a 2-way?

[docali]

This Selenium Horn simular to 2386 is the best sounding Horn I heard so wie ich far.

 

[Ro808]

Some people may quibble about the lack of roundovers at the mouth, but all-in-all the Selenium HL4750-SLF isn't a bad horn.

With a length of 352mm, according to Holland & Newell, it should be classified as a deep horn.

What if the depth is reduced to about 30cm, while preserving the overall horn profile (adjusted for the new length)?
30cm is considered 'the critical depth for a horn' according to the aforementioned authors.
Coverage angles would increase, without compromising loading characteristics too much.

This is what you get:

 

[Ro808]

Meyer's 'magical' Blue Horn for comparison:

 

[Ro808]

Suggestion.

 

[Ro808]

This is the horn.

Coverage is advertised as 90x40°, but (like the horn in the X-10) in practice it's probably closer to 60x30°.
Throat is 2" and therefore not a plug 'n play horn for camplo.

 

[moray james]

The more I dive into JBL's Optimized Aperture horns, the more I become convinced these approach the pinnacle of (classic) horn design.
Measurements of 2332, 2381 (attached images), 2352 etc. posted on the Lansing forum confirm my expectations.

A few tiny tweaks may improve performance and more importantly: sound quality.

My Solidworks skills need some refreshment, but I am looking into ways to enhance the diffraction throats, as well as the walls and the mouth roundovers.
Fillets and splines instead of sharp edges may work wonders. This would result in an interior more akin to the RCF horns.


Some DDS horns look like improved JBL designs.

You could use some Plasticine modeling clay and install some Roy Delgado (designer of the Klipsch K402 horn) "mumps" he calls them which you can see in a photo of the Klipsch K510 about one third of the way down the page in the attached link.

KLF-510? - Page 3 - Technical/Modifications - The Klipsch Audio Community

 

[Ro808]

The K-510 is a very nice little horn, possibly the best in its class.

With better drivers (Faital-Pro) and a bigger cab, this concept would comply with the thread title:

 

[Ro808]

Don't be fooled by the specifications, the K-510 can be crossed much lower than the stated 1000Hz.

 

[Ro808]

7 posts ago, I referred to Holland & Newell.

This studio monitor was (co-)designd by Philip R. Newell.
It would also comply with the thread title, but barely.

 

[plasnu]

The more I dive into JBL's Optimized Aperture horns, the more I become convinced these approach the pinnacle of (classic) horn design.
Measurements of 2332, 2381 (attached images), 2352 etc. posted on the Lansing forum confirm my expectations.

2332 / 2352 sound very good indeed. 🙂

 

[Ro808]

Here's another Newell studio monitor that would hit 120dB.
This one is of Spanish origin, the previous monitor is made in Portugal.

2 x 2235 + TAD Comp.

 

[Ro808]

This is an artistic impression of Holland & Newell's famed (hyped?) AX2 horn, used in both products:

 

[Ro808]

Here's their AES paper "The Sound of Midrange Horns for Studio Monitors".

 

[Ro808]

I don't think the AX2 is worlds apart from Zingali's patented Omniray horn.

 

[Ro808]

Which in turn was the basis for this M9500 Ersatz project.

 

[Ro808]

Zingali also manufactured studio monitors.

 

[Ro808]

The bigger brother is a 3 way with 2235 used from 16 Hz to 120 Hz, 2226 from 120 Hz to 482 Hz, and 2445 from 500 Hz and upwards.

 

[norman bates]

Those are some good looking horns.

 

[daemonsgr]

The K-510 is a very nice little horn, possibly the best in its class.

With better drivers (Faital-Pro) and a bigger cab, this concept would comply with the thread title:

Are Faital CD better in terms of quality (for hifi I mean) than beyma for example? Something crossed around 1khz.

 

[phase_accurate]

The woofer of that Electromotive Model 5 monitor is looking suspiciously similar to my Beymas.

Regards

Charles