WMcD Posted August 25, 2019 Share Posted August 25, 2019 Roy wrote: Roy Responds re AK6 Review.pdf 1 2 Quote Link to comment Share on other sites More sharing options...
Arkytype Posted August 25, 2019 Author Share Posted August 25, 2019 https://www.klipsch.com/our-technology Scroll down to see The Four Principles of Klipsch Sound. Looks like Roy's "response" to Stereophile separated Principle 1 (High Efficiency/Low Distortion) into his "sound principles" 1 & 2 and left out Wide Dynamic Range. ¿Qué pasó? Lee Quote Link to comment Share on other sites More sharing options...
ODS123 Posted August 25, 2019 Share Posted August 25, 2019 8 hours ago, WMcD said: Roy wrote: Roy Responds re AK6 Review.pdf 1.22 MB · 21 downloads To me this was a weird reply. ..From the outset it was odd. No "Thank you for the Review..." which seems to precede nearly every reply found in the Manufacturer's Response section? Why on earth didn't Roy speak (write) to the specifics of the review. The struck me a s strange reply and a sorely missed opportunity to provide some balance to what strikes most of us as a poor review. 1 Quote Link to comment Share on other sites More sharing options...
glens Posted August 25, 2019 Share Posted August 25, 2019 I thought he handled it rather well. It did read a little like so much marketing blurb but he got after them in an offhand way by stating they're designed to be in close proximity of a corner. The statement is definitely not lost on anyone who'd read the review. And whoever had read it and was alarmed at the placement for both listening and measuring, of course new this already. Anyone else gets the "why" of the performance from Roy's statement - if they're able to put 2 and 2 together. 1 Quote Link to comment Share on other sites More sharing options...
garyrc Posted August 25, 2019 Share Posted August 25, 2019 I believe there were 8 principles when PWK first stated them. I searched for them, but couldn't find them. Quote Link to comment Share on other sites More sharing options...
Zim. Posted August 25, 2019 Share Posted August 25, 2019 x Quote Link to comment Share on other sites More sharing options...
DizRotus Posted August 25, 2019 Share Posted August 25, 2019 I thought seven, but I’m old. They’re in The Dope From Hope, which I believe I have the complete thing on a hard drive somewhere. In my copious free time I’ll look for it. Quote Link to comment Share on other sites More sharing options...
Arkytype Posted August 25, 2019 Author Share Posted August 25, 2019 garyrc wrote, I believe there were 8 principles when PWK first stated them. I searched for them, but couldn't find them. Looks like Zim. just posted the link to one source. Here's one that Gil posted a few years ago. https://community.klipsch.com/index.php?/topic/46835-article-eight-cardinal-points-by-pwk/ Note that these are the "Eight Cardinal Points in Loudspeakers for Sound Reproduction" (emphasis mine)---not the top 8 loudspeaker design goals. I think PWK wrote this IRE Transactions on Audio paper in 1961 to complement the audio research of Bell Laboratory, William B. Snow's ground-breaking 1953 paper, Basic Principles of Stereophonic Sound and others allied in the field of sound reproduction. Quote Link to comment Share on other sites More sharing options...
Arkytype Posted August 25, 2019 Author Share Posted August 25, 2019 Thought I posted this version of the 8 cardinal points from a 1976 full-line Klipsch brochure. Lee 8 points brochure.docx 1 Quote Link to comment Share on other sites More sharing options...
garyrc Posted August 26, 2019 Share Posted August 26, 2019 So, in a sense, the two sets of points enable one another. Quote Link to comment Share on other sites More sharing options...
tipatina Posted August 27, 2019 Share Posted August 27, 2019 (edited) It's disappointing to me about the corners still being a requirement. I can't put them in corners-this quote from the Klipsch website got my hopes up. eliminates the need for the loudspeakers to be positioned tightly in the corner of a listening room Edited August 27, 2019 by tipatina typo Quote Link to comment Share on other sites More sharing options...
glens Posted August 28, 2019 Share Posted August 28, 2019 Yeah, all that means is "as close to the corner as possible." Now you can leave the chair rail alone. 1 Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted September 1, 2019 Moderators Share Posted September 1, 2019 On 8/25/2019 at 4:45 PM, garyrc said: I believe there were 8 principles when PWK first stated them. I searched for them, but couldn't find them. Those are not design principles, that was a handout PWK on how to get best sound out of your set up. It includea toe-in and other things as I recall. Edit: see above post about 8 Cardinal Points Travis 1 Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted September 1, 2019 Moderators Share Posted September 1, 2019 On 8/25/2019 at 5:39 PM, Arkytype said: Thought I posted this version of the 8 cardinal points from a 1976 full-line Klipsch brochure. Lee 8 points brochure.docx 1.52 MB · 13 downloads Didn't see that, those are them, the 8 cardinal points tie in his 4 Core Design principles, but they are seperate and apart from them. 1 Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted September 1, 2019 Moderators Share Posted September 1, 2019 On 8/26/2019 at 4:44 PM, garyrc said: So, in a sense, the two sets of points enable one another. Um I think he picked the 8 Cardinal Points to accentuate the uniqueness of his designs. It was a marketing tool, it focuses primarily on things only Klipsch had. They seem engrained into the long time fans here, and you see them paraphrased, combined, or restated constantly here on the forum. I believe it shows the universal truth in his underling principles, they are as true today as they were back then. Travis 1 Quote Link to comment Share on other sites More sharing options...
pzannucci Posted September 3, 2019 Share Posted September 3, 2019 On 8/27/2019 at 7:31 PM, tipatina said: It's disappointing to me about the corners still being a requirement. I can't put them in corners-this quote from the Klipsch website got my hopes up. eliminates the need for the loudspeakers to be positioned tightly in the corner of a listening room Corners are required for lower bass. No way to get that bass extension with a smaller horn (compared to wave length). The corner provides the size. The closer to it, the more likely you provide an extension of the horn mouth. 1 Quote Link to comment Share on other sites More sharing options...
garyrc Posted September 4, 2019 Share Posted September 4, 2019 19 hours ago, pzannucci said: Corners are required for lower bass. No way to get that bass extension with a smaller horn (compared to wave length). The corner provides the size. The closer to it, the more likely you provide an extension of the horn mouth. Also, has putting backs on the Klipschorn eliminated the 250 Hz to 500 Hz dip in response when open backed Klipschorns are not sealed into a corner? This was reported by PWK in a Dope from Hope on November 10, 1961. He started advocating rubber gaskets to seal the Khorn into a slightly uneven corner -- and almost all corners are slightly uneven. Quote Link to comment Share on other sites More sharing options...
glens Posted September 4, 2019 Share Posted September 4, 2019 6 hours ago, garyrc said: and almost all corners are slightly uneven. Even of those I've built (quite a few). It's time-consuming to try very hard to find 2-bys which start and stay straight from the time that bunk has its bands cut. They all look perfect before you go and do that. And corner horns can be less picky than countertops or cabinetry, or at least "more accommodative." Quote Link to comment Share on other sites More sharing options...
jdmccall Posted September 7, 2019 Share Posted September 7, 2019 I too, was very disappointed in the STEREOPHILE review of the new Klipschorn; both in the listening review by AD and in JA's measurements. AD's room was really not k-horn friendly and JA ran head-long into the difficulties of measuring a horn loaded loudspeaker designed for corner placement and relating those measurements to how the speaker is actually going to be used. But I think that maybe the most surprising thing about the review, to me, was the low, reactive impedance graph. Factor that into many user's preference to power their klipschorns with tubes and I have way more questions than I have answers. When I had k-horns ('98-'03), I last powered them with the same Pioneer Elite VSX-55TXi a/v receiver I'm still using. I don't know (but I doubt) that the combination caused any of the extreme frequency response variations I encountered, but now I wonder. At the time I blamed it all on the room. Quote Link to comment Share on other sites More sharing options...
boom3 Posted September 8, 2019 Share Posted September 8, 2019 which brings up the point...when is Klipsch going to offer active electronics (including DSP) for the Heritage line? Quote Link to comment Share on other sites More sharing options...
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