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In Reply to: RE: I wrongfully assumed people read the stereophile article about the Line magnetic horn posted by Kloss on December 12, 2016 at 18:18:07
This us why we did not know what your OP was about. The review ( follow up)is of the Auditorium 23 Hommage Cinema Loudspeaker.
The Line Magnetic units appear by name only in the second paragraph in a description of drive units employed. JA does not really review the drive units themselves beyond how they are employed in the design where he finds that " superb midrange horn is taken both too low and too high in frequency". At least for his tastes.
Referring to this as a Line Magnetic review is like referring to a Wilson Audio review as a SEAS or Scanspeak review (or whoever makes their drivers).
Follow Ups:
Hi Par as you yourself stated the drivers and horns used in those Auditorium 23 Hommage Cinema Loudspeakers were made by Line Magnetic! Hence when JA started making negative comments about the tweeter being used in these wonderful horn speakers, he was essentially reviewing the Line Magnetic driver/horn combo. I felt Kloss was quite clear about that within his post or at least that was quite clear to me...
Thetubeguy1954 (Tom Scata)
Central Florida Audio Society -- SETriodes Group -- Space Coast Audio Society
Full-range/Wide-range Drivers --- Front & Back-Loaded Horns --- High Sensitivity Speakers
Actually JA makes no comment that I could read as a criticism of the Line Magnetic tweeter. He measures it (just facts). He does criticise certain aspects of the loudspeaker designer's implementation of the Line Magnetic drivers but that is not criticism of the units in their own right.
Yes he does find the (measurable) lack of upper frequency energy not to his personal taste but modifies this comment by pointing out that Art Dudley did not find this a problem. IMO JA is entitled to report what he heard. In fact he concludes most positively " You should give this speaker a listen - just to experince what is posssible from a classic compression horn driver loaded with a horn".
You obviously ( from your isgnature) have a dog in the fight as a horn/SE triode afficionado So I understand yor sensitivity (sorry about the pun)to JA's comments. However they do seem to me to be rational and balanced. My view ? I would love to hear this speaker as the SE/horn aspect of this hobby offers so much. Sadly my physical surroundings make the installation of a horn system with adequate bass response largely impractical, hence my choice of a direct radiator design. Given other constraints however ...
> The review (follow up) is of the Auditorium 23 Hommage Cinema Loudspeaker.
My review (follow up) is now posted on-line at the link below.
John Atkinson
Editor, Stereophile
A very fair and informative review follow up by John Atkinson, which is surprisingly enthusiastic coming from someone who has said "..I'm suspicious of horn loaded designs". Also surprising is the reference to J. Gordon Holt's "jump factor" in the context of a horn speaker. Recently an old anti-horn rant by JGH was re-printed in Stereophile where he expressed his opinion that horn listeners needed horns to compensate for their hearing loss. It's a good thing they don't install tachometers on graves.
Paul
Excellent technical review, John. I'm not an audio magazine reader usually, but that was worth reading (the technical measurement work, that is).
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Make super easy diffusors:--> http://www.diyaudio.com/forums/everything-else/269366-making-easy-diy-depot-sound-diffuser-panels-step-step.html#post4215464
Horn Design Spreadsheet:--> http://libinst.com/SynergyCalc/
> Excellent technical review, John. I'm not an audio magazine reader
> usually, but that was worth reading (the technical measurement work,
> that is).
Thank you.
> Horn Design Spreadsheet:--> http://libinst.com/SynergyCalc/
And I'll certainly check out this page.
John Atkinson
Editor, Stereophile
I'm sure it had good Timbre John ...... :)
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