Paul did sell only horns as i remember.
Red Spade Audio: PSE-144 launch update
I'm not sure that there is a listening or measuring distance from where you'd be able to determine it is not point source when looking at PSE-144.
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I've seen this horn before but I never separated it from the woofer I seen it with. I wonder what the cost is, sound quality, and range is. You don't think I could build something like that myself with the horn we are designing. If I remember correctly, if I'm only looking to come in around 300hz, with a hole in each of the 4 corners of the horn, as far from the throat as possible....easy peasy?
Camplo,
Afaik Cowanaudio was part of the team which helped to develop the redspade design ( but i may be wrong about it). Ask him directly.
Afaik Cowanaudio was part of the team which helped to develop the redspade design ( but i may be wrong about it). Ask him directly.
mitchba, where can I find your Kii Three review? Kii sounded great at the show, and I'm interested.
Paul Spencer of Red Spade Audio designed it, it is really quite expensive as it is fibreglass construction and is a Celestion 1747 1" CD and 4 x Celestion sealed back mids in an elliptical waveguide.
The similarity is that the mids go down to around 300Hz to cross over to a 15" or 18" woofer.
Red Spade Audio PSE-144
The person I sold my Linkwitz LX521 system to has one, he liked it but was still on the hunt for something better.
The similarity is that the mids go down to around 300Hz to cross over to a 15" or 18" woofer.
Red Spade Audio PSE-144
The person I sold my Linkwitz LX521 system to has one, he liked it but was still on the hunt for something better.
Not mitch but here it is
Kii THREE Loudspeaker Review
Search the site for mitch's other reviews well worth reading.
It is not just hole in the horn. Size of the holes matters as well as phase plug that goes toward the cone of the midrange to fill the cavity made by the cone bolted to the horn.
It can certainly be done (Paul did it looking at Tom Danley's synergy) but not without some scrap pieces and prototypes.
There are lots of examples of M.E.H.(multiple entry horns) now, though not all that many using a 2-way approach.
Sometime during 2014, Chris (Cask05 here on DIY) followed some suggestions in this thread:
Pros and cons of different midbass horns
And added 15” drivers to his Klipsch 402 horns resulting in much better polar response than the usual easy to build straight walled conical expansions typically used for DIY MEH.
He later used coaxial compression drivers on the same horn for even better response:
A K-402-Based Full-Range Multiple-Entry Horn - Technical/Modifications - The Klipsch Audio Community
It seems kiiro is finally settling for a M2 (waveguide) inspired setup.
He calls it a paradigm shift.
He calls it a paradigm shift.
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And some construction pics.
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Pretty impressive pieces of work, right?
This is his website and here's his old blog. There's lots of interesting info to be found.
A comment (google translated):
"The sound of the two horns (2451H, 2431H) of the M2 type was a clearer new sound, while maintaining the high freshness of the 2360A and MR94.
2360A and MR94 are horns 45 years ago, so I think this is inevitable.
J2 technicians may not have heard of the M2 type large format horn.
Probably one of the world's most advanced large horns.
This is his website and here's his old blog. There's lots of interesting info to be found.
A comment (google translated):
"The sound of the two horns (2451H, 2431H) of the M2 type was a clearer new sound, while maintaining the high freshness of the 2360A and MR94.
2360A and MR94 are horns 45 years ago, so I think this is inevitable.
J2 technicians may not have heard of the M2 type large format horn.
Probably one of the world's most advanced large horns.
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