Thanks for asking, though there's been lots of anxiety as Troy was expecting me to have made a decision over a month ago on a horn/driver combo to use atop my midwoofers which he had tested. I'm sure that's them stacked up (with diaphragms wisely facing away from traffic) to the left in his listening space
@ 24:11.
Luckily, I was able to buy some time by letting Troy use my midwoofers to build crossovers for another customer's system, as he requested last month. But as you can see from my last post here https://www.diyaudio.com/community/threads/great-waveguide-list.178187/post-8029290 I thought it was wise to learn more from experts here on specific CD horns and compatible drivers, as well as their thoughts on my alternate three-way system idea described above.
Back in March, having heard the speakers that Troy sold Glen above, I've so wished for a chance to hear that K-510 knockoff, though I can't believe Klipsch apparently never made a horn sized between it and the (for me) impossibly large K402. And also the JBL 2384 horn. But I've recieved no invites and my traveling is limited to ~ 200 mile Amtrak trips.
So, short of some kind of very timely listening session with one of those CD horns, I'll then have to discuss my three-way idea with Troy next week. If he can suggest the right tweeter horn for the Radians which will give ~ 3kHz to 14kHz HF directivity very comparable to the K510 or 2384 horns, and doesn't anticipate any time alignment or lobing problems, then I'll ship him the Radians to test. If Troy then finds that the Radians measure and sound beautiful (zero fatigue, relaxed, airy but detailed sound?)-after he EQs them to flatten and extend the HF response-and if he agrees to having Athos https://www.athosaudio.com/ more affordably make the ES290 horns for the DCM50 midrange (but after he confirms that horn's not too big to sit safely on my midwoofer cabinets)-then it should be time to start building. Of course, I'm open to Troy's suggestions if he shows that some aspect of this proposal won't fly right.
At least this way I would likely end up with a respectably sounding reference system, and for then perhaps one day an opportunity to compare it to a two-way system with such CD horns.
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Thanks for the update. I do like the 2384 horn very much personally but I've not compared them to every other horn you're considering.
Whether it be a two or three way system, I would want Troy to make the passive crossovers switchable for biamping. And this seems like a very sensible solution. https://danvillesignal.com/dspnexus-dsp-audio-processor
Please describe how you use the 2384 and all aspects of the sound that you do or don't find pleasing.
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The nominal -6dB dispersion is 90 degree horizontal, 20° up, 30° down.
The 2384 horn directivity should be similar to the 3732 above ~600 Hz:
The JBL 2384 has a 1.5" throat, the 2432H driver with a 75 mm (3 in) titanium diaphragm is used in the 3732 and 4722 cinema systems.
JBL's 2435HPL has a 1.5" throat and a 3" beryllium diaphragm, it's Fs is 900Hz, a bit high for the 2384 horn.
The 18sound ND4015BE has a 1.5" throat...
