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Multi-Way Conventional loudspeakers with crossovers

Best waveguide under 17.75x6.75" mouth for The Selenium D220Ti
Best waveguide under 17.75x6.75" mouth for The Selenium D220Ti
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Old 19th June 2018, 04:31 AM   #71
federico moreno is offline federico moreno  Argentina
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China PRO Speakers with Hf Horn Hot Selling 260*215*126 1" (039A) - China PRO Speakers, Hf Horn
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Old 20th June 2018, 06:42 AM   #72
Rational35 is offline Rational35  Canada
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I was looking at those, not so sure how I feel about the diffraction throat in the XT-1086 and its clones, though... they also offer a smaller elliptical horn which looks a lot like the EOS-6 that Erich at DIYSoundGroup was selling: China Loudspeaker Horn for Tweeter Hot Selling 165L*135W*60h 1" (019A) - China Loudspeaker, Horn

I've been trying to buy some EOS-6 and EOS-8 from Erich. He says he still has some cases of them *somewhere* but can't find them just now...

I'm looking for tweeter horns, pattern control down to 2.0-2.5kHz will do. Federico, how was your experience (ease of transaction) dealing with this Chinese supplier?

Thanks for your comments.
-Peter
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Old 20th June 2018, 07:09 AM   #73
hollowboy is offline hollowboy  Australia
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Quote:
Originally Posted by Rational35 View Post
they also offer a smaller elliptical horn which looks a lot like the EOS-6 [...]
I've been trying to buy some EOS-6 and EOS-8 from Erich. He says he still has some cases of them *somewhere* but can't find them just now...
Maybe the p-audio PH-170?

Available for about $10 each, but not in Australia
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Old 20th June 2018, 07:26 AM   #74
Rational35 is offline Rational35  Canada
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Those look interesting, but there's no p-audio distributor in Canada, and sometimes it's way easier for me to order stuff from China than it is to order from the U.S.A... go figure
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Old 20th June 2018, 10:00 AM   #75
arcgotic is offline arcgotic  Romania
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I had the PH-170, I used it with BMS4524 and B&C DE250.
The sound is not OK. I don't have measurements now, but trust me.

This one is very good above 2k:
Eighteensound XT 120 – Thomann UK
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Old 20th June 2018, 02:01 PM   #76
federico moreno is offline federico moreno  Argentina
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Quote:
Originally Posted by Rational35 View Post
I was looking at those, not so sure how I feel about the diffraction throat in the XT-1086 and its clones, though... they also offer a smaller elliptical horn which looks a lot like the EOS-6 that Erich at DIYSoundGroup was selling: China Loudspeaker Horn for Tweeter Hot Selling 165L*135W*60h 1" (019A) - China Loudspeaker, Horn

I've been trying to buy some EOS-6 and EOS-8 from Erich. He says he still has some cases of them *somewhere* but can't find them just now...

I'm looking for tweeter horns, pattern control down to 2.0-2.5kHz will do. Federico, how was your experience (ease of transaction) dealing with this Chinese supplier?

Thanks for your comments.
-Peter
Hi Peter; Did not have to deal with the chinese manufacturer, because somebody imported (to Argentina) some of this horns and I bought them via the local ebay (`mercado libre` is the name here). Build quality is very good (the polyuretane is heavy and non resonant; the throat is exactly rounded, nothing to file or sand.
Concerning the oval difraction slot, it`s not very obtrusive, at least at normal SPL`s. I haven`t taken polars, but subjectively, and mostly nearfield, I have noticed some `detectability`of high treble emanating from the horn, at some 45/50 degrees off axis . I mean, some faint uneven off axis `sparkle` that is position dependent at 1 m from horn-, but which dissapears at 2/3 m-.
Anyway, sound is extremely detailed, with nice delineation of voices and very dynamic rendition of percussive sounds and transients. The aural signature (at least in a modestly sized room, 2/3 meters from horn) is akin to listening to very good quality headphones. Perhaps, because of the absence of reflections. In my space doesn`t sound harsh, neither shouty or `mechanic`.
Cheers.
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Old 20th June 2018, 02:26 PM   #77
federico moreno is offline federico moreno  Argentina
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Digression concerning crossovers:
From the beginning, some years ago, for compensation I did very simple `derated` 12 dB/oct crossovers, la JBL L200t3, with some padding. Waveguides were some 6 inches round, or butt cheek style, and even some 18sound xt120.
With that style of crossover, the sound was detailed, integrated and with excellent `projection` of treble and high mids.
Later, I turned to crossovers la Wayne Parnham or Zilch (quasi textbook, but with fixed pad and a parallel capacitor to taylor eq and driver behaviour).
I don`t know how I managed to spoil them, but with the later kind of x`overs I detected some shouting, namely some kind of `PA` style sound, even in a round, very shallow 6" waveguide. Perhaps the horns weren`t loading accordingly, or perhaps I was someway upsetting the driver... don`t know.
Later on, I returned to the simple crossovers to regain that lost ease of sound.
I don`t mean that more complex crossovers are bad per se; I think that I don`t have the instruments to tune them adequately. Did a lot of parts substitution, etc; the usual stuff, but the simple crossovers followed by a variable Lpad always sounded better.
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Old 20th June 2018, 03:47 PM   #78
federico moreno is offline federico moreno  Argentina
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Quote:
This one is very good above 2k:
Eighteensound XT 120 – Thomann UK
Yes, I like it very much; sounds very good from 2/3 kHz up to 15kHz on axis but directivity is notorious, even for non-trained ears. The high midrange sweet spot is relatively ample, but with some loss of HF in the 8/15 kHz range: it sounds more integrated on a restricted axis.
Anyway, I don`t care a lot about constant directivity as a holy grail (personal view), and between practical limits I can live with some directional aberrations.

Last edited by federico moreno; 20th June 2018 at 04:01 PM.
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Old 21st June 2018, 04:26 AM   #79
hollowboy is offline hollowboy  Australia
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Originally Posted by arcgotic View Post
I had the PH-170, I used it with BMS4524 and B&C DE250.
The sound is not OK. I don't have measurements now, but trust me.
Interesting, thanks.

I had wondered if it'd be good for use with dome tweeters, like the shallow waveguides shown on this site:

Hochtoner mit Waveguide – Heissmann Acoustics
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Old 21st June 2018, 07:58 PM   #80
silverprout is offline silverprout  France
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Quote:
Originally Posted by arcgotic View Post
I had the PH-170, I used it with BMS4524 and B&C DE250.
The sound is not OK. I don't have measurements now, but trust me.

This one is very good above 2k:
Eighteensound XT 120 – Thomann UK
Hello
The PH170 is a waveguide and the XT120 is a horn...
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