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Multi-Way Conventional loudspeakers with crossovers

Is it possible to cover the whole spectrum, high spl, low distortion with a 2-way?
Is it possible to cover the whole spectrum, high spl, low distortion with a 2-way?
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Old 29th November 2019, 07:27 PM   #4611
camplo is offline camplo
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Quote:
Originally Posted by DonVK View Post
This is "jericho" after some modifications.

The green surface is exactly the same as before. The teal surface is an additional curve#1 to take the mouth exit from 45deg to 90deg. The grey continuation is curve #2 to create the roll over. The same scale is used in the pre/post graphs.

Making the mouth larger improves the impedance match and the round over reduces the diffraction.
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Old 29th November 2019, 07:34 PM   #4612
DonVK is offline DonVK  Canada
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Happy you like it.

I also suspect (speculate?) that a slightly elliptic shaped round over, added to the jericho's circular mouth, may help reduce the impedance oscillation further.
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Old 29th November 2019, 07:55 PM   #4613
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I understand the idea to give an artist a general picture and let them use their own cognition to fill in the details, which allows their genius to flow

This is a staple in the collection, the one horn that strives to do all the things that I wanted it to do performance wise.

There are still several horns I am interested in seeing, Shark 45/RA45 vs JMLC HVDiff no more than 40" wide.

And then I would really appreciate, like a "master piece" horn, like the horn that you and Docali would want to be the head piece, given, you know the pieces of the hardware, (AE 18H+>15M>Axi2050) your choice of xover point and profile.
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Old 29th November 2019, 08:56 PM   #4614
DELfranck is offline DELfranck
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Originally Posted by Ro808 View Post
Stunning work!
Is it an Iwata?



Horn iwata 220 and 600 profil le cleach.
Click the image to open in full size.
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Old 29th November 2019, 09:19 PM   #4615
docali is offline docali  Germany
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Quote:
Originally Posted by camplo View Post
I understand the idea to give an artist a general picture and let them use their own cognition to fill in the details, which allows their genius to flow

This is a staple in the collection, the one horn that strives to do all the things that I wanted it to do performance wise.

There are still several horns I am interested in seeing, Shark 45/RA45 vs JMLC HVDiff no more than 40" wide.

And then I would really appreciate, like a "master piece" horn, like the horn that you and Docali would want to be the head piece, given, you know the pieces of the hardware, (AE 18H+>15M>Axi2050) your choice of xover point and profile.
For you application it seems that only constant T horns fulfill your requirement for low loading. Btw, I have just seen here a horn claiming to load below 300 Hz and was only about 33cm long. This is highly questionable in my eyes.

Here is a similar horn where Jericho meets Shark:

drba_Jericho_meets_Shakr_01.JPG
drba_SWH147_SF138_Jericho_meets_Shark.zip
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Old 29th November 2019, 09:20 PM   #4616
docali is offline docali  Germany
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Originally Posted by DELfranck View Post
Horn iwata 220 and 600 profil le cleach.
Click the image to open in full size.
Great work!

What is the weight of one of the big horns?

Maybe some day I will come back to you with my own designs
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Old 30th November 2019, 05:55 AM   #4617
camplo is offline camplo
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Quote:
Originally Posted by docali View Post
For you application it seems that only constant T horns fulfill your requirement for low loading. Btw, I have just seen here a horn claiming to load below 300 Hz and was only about 33cm long. This is highly questionable in my eyes.

Here is a similar horn where Jericho meets Shark:

Attachment 798593
Attachment 798594
To be honest, several of the horns you designed around the time of the first shark, are pretty excellent designs and considering how well the lip treatment has treated the Jericho as a truncated mouth, can only expect great things.
I think this model is a blend of several of the approaches we've tried, it looks like a contender for a 200hz xover, very excited to see how it simulates!
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Old 30th November 2019, 11:56 AM   #4618
Ro808 is offline Ro808  Netherlands
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Speaking of Jericho horns, about 2 months ago I wrote a short review about the Danley J1s. Last week, in the same club, I was dissapointed with the muddy, undefined (sub)bass in close proximity of the 16x TH118 and 2x TH812 lined-up along the stage, below the Jericho 1's.
I attributed this to the DJ, who, at that moment played a heavy bass track, probably also with the bass knob turned all the way to the right.

Last night I went to a collective birtday party of 3 friends who had rented out a room in an alternative club. Some well known djs had to make do with 2 Behringer Eurolive tops and no subs... an abomination.
After the joint closed (only an hour after I got there) we decided to go to another place. Little did I know I was in for a bit of surprise.

It appeared, the (small) club got a Danley Pure Groove 4-point system last month, consisting of 4x SH50 and 2x TH118, complemented with MC2 Audio gear.
There are also ATC SCM45A monitors, a handmade Alpha Recordings System Model 9900 rotary mixer, a Roland Space Echo and an Avalon 747 /compressor equalizer amongst other esoteric bits of equipment in the DJ booth.

The dj (couple) played a wide variety of music: hip hop, Latin, disco, new wave, etc.
So what did the 4-point Danley system sound like? Like gigantic quadrophonic high-end headphones.
It's by far the best Danley Pure Groove system I've heard and among the best club systems I know.
However, I am still not 100% convinced I could live with (2 instead of 4) Synergies/MEHs at home.
The ultra transparent and highly directive rendition presumably takes some time getting used to, but it definitely draws you into the music.


Click the image to open in full size.

Click the image to open in full size.

Last edited by Ro808; 30th November 2019 at 12:18 PM.
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Old 30th November 2019, 12:23 PM   #4619
Pano is offline Pano  United States
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Is it possible to cover the whole spectrum, high spl, low distortion with a 2-way?
Interesting report. Thanks!

FWIW, at one point Tom offered to let me borrow a pair of SH50 to try at home and compare to my Altec rig. Tom would like the SH50 to be sold in the Hi-Fi market, but the business model currently isn't right. The loan never happened (I moved), which is too bad. From the demos I've heard, I think I would have quite liked the SH50 as home Hi-Fi.
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Old 30th November 2019, 07:01 PM   #4620
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KS-2125 -Did I ever mention this build? I'm not familiar with the enclosure style.
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