I really really wanted to get a 1503 or 1803 in my listening room.Looks like we've come to the right place!
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Crazy PA Coaxials for Hifi
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mhardy6647
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Go for it!
Pretty sure with a cherry picker I could get a pair into mine if I took out the windows on the east end...
Restoring old ones would be even more work than massaging 511s. But they are super coolGo for it!
Pretty sure with a cherry picker I could get a pair into mine if I took out the windows on the east end...
mhardy6647
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I am sure they are -- I've never run across either in the field...Restoring old ones would be even more work than massaging 511s. But they are super cool
I played with 1803s in my misspent youth, with 288s on them of course. Very niceI am sure they are -- I've never run across either in the field...andeven though I know some folks who are big into such arcana.
I now know that the polar pattern of a 511 may just be a little better, although some judicious EQ is required. And you know I think the 802 is an also-ran at best. The old multicells needed damping too, being fairly thin sheet metal. Unfortunately, the tar-filled examples are super expensive, and in any event the tar has turned to hard chunks. I imagine them needing a trip to the hot tank at the local automotive machinist, followed by a new coating. These days I'd use truck bed liner.
I've seen an online web shop for new Kef drivers, sorry I don't have the link. The UniQ is a very nice sounding driver, you can make crazy coax of it by adding proper woofers
Setelec? It's shut down forever, they say
Exactly. I would be looking for it to take over at about 500 hz as a fullrange ‘point source’ supported by big woofers. But it seems they are unobtainable as new units.
HarmonicTHD
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I think it is “only” the drivers for the Q series, none for the R series or above. I faintly remember it was a France based online shop but not entirely sure.
Setelec is closed, see post #187. (Ignore list? Well done, guys, so wise.)
HarmonicTHD
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Yes it was Setelec. Thanks.
HarmonicTHD
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Works for me
But didn’t check if they still carry the Q UniQs.
Edit. You are right that either is a different company and or they indeed discontinued the UniQ spares. Sorry to hear.
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I see, may be the mothership of French' repair shop. Anyway, when addressing my bookmark setelec-shop.fr I'm redirected to the 909 page. As they refer to pending orders, well, that's quite an indication for the address to be real. They didn't carry the meta version anyway, only up to I think the plain Q's, but not R's. Delivery time was counted in months, and so again, the closure is plausible.
As this is about pro/ p/a targeted drivers, what about .Kartesian (watch the dot)? They have a 6,5" incher that is pretty loud but expells some hifi virtues too.
It is discussed there: https://www.diyaudio.com/community/threads/kartesian-cox165_vpa-reviews.374689/
Alas, those guys don't understand the *very* wide directivity of the tweeter part. So they get severe interference from the chassis perimeter, not countersunk. They take it for a resonance in the tweeters waveguide LOL why does it disappear at angles?
My only caveat against the specimen I had was the "cone edge" resonance @800Hz or so, wich is the surround's resonance actually. Very strong IM generator, but then it is very narrow; I couldn't decide for keeping it.
Sad to see that. But if you want, you can buy smallest Q-series, which is quite cheap or maybe LS50 Meta, which is still somewhat within most budgets.
If I was to make a new PA coax, I'd look into these BMS speakers.
If I was to make a new PA coax, I'd look into these BMS speakers.
OP
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So, yeah, these things still fascinate meLooks like we may have a new contender for the top crown of Crazy PA Coaxials:
18HTX100 Triaxials - B&C Speakers
100 dB (LF), 110 dB (MF/HF) sensitivity, 1600 W continuous program power capacity, 60°x40° nominal coverage, 44 - 18000 Hz response, FEA optimized horn flare for improved acoustic loading and controlled coverage, Double silicone spider with optimized compliance, Aluminium demodulating ring for...www.bcspeakers.com
View attachment 277422
They will set you back € 809/piece if you buy two. Not to bad if you consider the cost of the coaxial tweeter and the horn alone.
Seems like you could just combine this with an 18" PR with enough excursion, making it much easier to build vs a long reflex path. The Dayton 18" PR seems to do the trick. Also get's to 110 dB max at 20 Hz with 400gr of added mass to the PR. Surprisingly a single PR seems to be enough to tame the beast, making it even economically not even that bad of a choice either I've also tried to sim a PSICarAudio 18" PR, which has a bit more excursion, but it looks hideous and you don't really gain that much performance. It's also hard to get to the EU probably.Also, you can probably get away with the stock passive crossover for the horn (or a cheaper clone), and then just have it work as a 2-way DSP solution.
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