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  1. Duke LeJeune

    Layering in a Second Speaker System With Narrow Bandpass?

    That dip region is less than one octave wide, so I'm not sure how much better a Lansche plasma tweeter would sound compared to something more conventional. Having two slightly different arrival directions (per channel) could blur the imaging, and if your head is not exactly in the right...
  2. Duke LeJeune

    Line Source Dipole Versus Point Source Cone: Which Soundstage Presentation is More Realistic?

    Hi Rob, Thanks for the information and pictures! BEAUTIFUL room and setup! And imo you DID IT RIGHT by using a thick enough layer that the absorption was over the entire frequency range that the Heil was putting out. A thin layer that only absorbed the short wavelengths would have, in...
  3. Duke LeJeune

    Line Source Dipole Versus Point Source Cone: Which Soundstage Presentation is More Realistic?

    Very interesting! How were you attenuating the backwave of the Heil? And if you recall, about how far in front of the wall were the Heils?
  4. Duke LeJeune

    Line Source Dipole Versus Point Source Cone: Which Soundstage Presentation is More Realistic?

    Which creates the most realistic soundstage presentation... hmmm... At the risk of over-generalizing: Ime good point-source-approximating monopole speakers tend to produce more realistic sound image localization, including more realistic separation of individual voices and instruments...
  5. Duke LeJeune

    Rosso Fiorentino "Volterra" speakers at SouthWest Audio Fest

    What model where they showing? Did it have a rear-firing tweeter? Ime Von Schweikert does a very good job of integrating their rear-firing tweeters.
  6. Duke LeJeune

    Rosso Fiorentino "Volterra" speakers at SouthWest Audio Fest

    Very interesting! I wonder if this could have played a role: We got to the Estelon room during the final hour of the show, so perhaps there was some tweakage that took place between your visit and ours? (Enjoying your video of the presentation of field coils - THANK YOU for hosting and...
  7. Duke LeJeune

    Rosso Fiorentino "Volterra" speakers at SouthWest Audio Fest

    Oboy, everything! They were vivid and utterly relaxing at the same time. Timbre was rich and natural-sounding including all the way down; the soundstage ranged between huge and huger from one recording to the next; voices and instruments were clearly layered in ways I had never heard before on...
  8. Duke LeJeune

    Rosso Fiorentino "Volterra" speakers at SouthWest Audio Fest

    No, and I'm kicking myself for that! Somehow I missed the Von Schweikert room. It was on my mental list of rooms to visit, I may have gotten distracted and walked past it somehow.
  9. Duke LeJeune

    Rosso Fiorentino "Volterra" speakers at SouthWest Audio Fest

    My wife and I attended the SouthWest Audio Fest on Sunday. We didn't make it to all of the rooms. A bit of background: My wife and I are both very sensitive to harshness/edginess/shoutiness/shrillness. More than once she gave me the quick tap on the leg to signal her ears couldn't take it...
  10. Duke LeJeune

    German Physiks Unicorn: An alternate take on single driver speakers. Did you ever have a chance to audition it? What did you think?

    VERY INTERESTING! Thanks for posting this insider information! There was another room with omnidirectional speakers and they used a lot of plants as diffusion, maybe they had some absorption as well that I didn't notice (the lighting was pretty dim). My wife and I both preferred your room by...
  11. Duke LeJeune

    German Physiks Unicorn: An alternate take on single driver speakers. Did you ever have a chance to audition it? What did you think?

    @Basile: Locrian Audio: Your room at Southwest Audio Fest had absolutely beautiful, natural, warm, rich, relaxing tonality. And this was without room treatments in what was probably a narrower-than-ideal room. My wife and I both thought your room was among the very top rooms.
  12. Duke LeJeune

    Mike Lavigne's new speakers

    I have noticed and admire this about you. You SHARE your journey for the sake of SHARING with kindred souls, knowing all along that a few will choose to react negatively. Fortunately this forum is effectively a safe place.
  13. Duke LeJeune

    Introducing the Alana loudspeaker by Illusio Audio

    Thank you for running the music! Yup. Mom says hi.
  14. Duke LeJeune

    Introducing the Alana loudspeaker by Illusio Audio

    Unfortunately I don't know whether any full orchestral was caught by anyone recording in the room. Michael Fremer came in and we played "Fanfare for the Common Man" (Eiji Oue directing the Minnesota Orchestra) and several times during the piece he said "very good" and when it was over he said...
  15. Duke LeJeune

    Introducing the Alana loudspeaker by Illusio Audio

    One is just barely visible to the far right-hand side. Another is behind the screen, along the front wall, just so happened that location worked. The third was to our left, closer to the rear of the room and elevated atop the room's little refrigerator-in-a-cupboard. The fourth was along the...
  16. Duke LeJeune

    Introducing the Alana loudspeaker by Illusio Audio

    Thursday evening before Capital Audio Fest (2022) opened, J.R. Boisclair of WAM Engineering came to our room (623) and performed his multiple-subwoofer setup procedure. The specifics of his procedure are proprietary but when he was finished we had bass that was flat (aside from a small dip in...
  17. Duke LeJeune

    Introducing the Alana loudspeaker by Illusio Audio

    Photos of Alana atop LORAstand:
  18. Duke LeJeune

    Introducing the Alana loudspeaker by Illusio Audio

    No, the enclosure is a fairly low-tuned bass reflex system. We wanted the midwoofer to go low enough to match up well with the distributed multi-sub system, and that's not practical with a cardioid system, at least not unless we go with something considerably larger and/or more complex. We...
  19. Duke LeJeune

    Introducing the Alana loudspeaker by Illusio Audio

    I don't know yet.
  20. Duke LeJeune

    Introducing the Alana loudspeaker by Illusio Audio

    Thank you very much! We'll be showing with four subs, they won't be identical to the Swarm units but will be very close relatives. Thanks for the feedback, glad my post made sense! Thank you David! The little Alana is pretty much at the opposite end of the horn spectrum from your systems...
  21. Duke LeJeune

    Introducing the Alana loudspeaker by Illusio Audio

    Illusio Audio is a new high-end loudspeaker company that takes an innovative approach to loudspeaker/room interaction. Briefly, we achieve very beneficial room-interaction characteristics by controlling the arrival times of the reflections without reliance on room treatments. To put it another...
  22. Duke LeJeune

    Capital Audio Fest 2022

    I will be in Room 623, representing a new loudspeaker company named Illusio Audio. We will be showing our first product, the Alana stand-mount speaker with stand (the stand is a critial part of the system). The Alana is a team effort which is much more of a high-end design than my previous...
  23. Duke LeJeune

    Soundstage Reproduction and Scale: Does Speaker Size Matter?

    Imo there are two versions of "tall" in the speakers you mention: Mids-n-tweets at the top (Wilson and YG Acoustics), and full-on vertical symmetry (Evolution Acoustics, Rockport, Gryphon, and Von Schweikert). It looks to me tweeter height in the former is in the 56"-58" ballpark, and in the...
  24. Duke LeJeune

    Can one find realism in box speakers that cost less than $150K after experiencing dynamics of horns and horn-type speakers?

    BEAUTIFUL looking woofer, but... how is it held in place? I don't see fasteners in any of the visible mounting screw holes in the woofer's flange.
  25. Duke LeJeune

    Paul McGowan on Horn Loudspeakers

    I found Floyd Toole's reply to me, and here is the relevant part: "The audibility of power compression in its many variations probably could use some more research to define what is audible and what is tolerable. The magnet heating that you describe is important in pro audio sound reinforcement...
  26. Duke LeJeune

    Paul McGowan on Horn Loudspeakers

    Could you be thinking of thermal compression? A few years ago I had a conversation with Floyd Toole about thermal modulation, the short-time-constant cousin of thermal compression. He said that thermal modulation is a real effect which he has often observed but it has not been adequately...
  27. Duke LeJeune

    Paul McGowan on Horn Loudspeakers

    I borrowed the term "thermal modulation" from somebody else, and more than likely it was Earl Geddes. I'd like to propose a third, though perhaps less significant, dynamic advantage of horns, and that is, improved in-room signal-to-noise ratio. Recall that the higher the signal-to-noise...
  28. Duke LeJeune

    The AudioKinesis Bohemian 215 design notes (more teaser content)

    The Bohemian 215 is taking longer than expected... that never happens, right?? We have something smaller and less challenging to manufacture that has moved along faster, and will be making its debut before the Bohemian 215. This smaller model will have the horn mounted in the enclosure rather...
  29. Duke LeJeune

    2-Channel Subwoofer Integration

    The ears cannot detect the presence of bass energy from less than one wavelength, and cannot detect the pitch of bass energy before hearing several wavelengths. So the perceived onset of transients is not a subwoofer frequency phenomenon; it happens much further up the spectrum. To put it...
  30. Duke LeJeune

    Speaker Recommendation up to 70K

    Emerald, if you haven't seen it yet, here is a video tour of the 2019 Munich show, which I believe was recorded by Bonzo. No Zellaton, unfortunately, but Vivid and Marten and Wilson and Goebbel and Kharma. Edit: That should be "Bonzo75". Not that other Bonzo.

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