How Science Got Sound Wrong


I don't believe I've posted this before or if it has been posted before but I found it quite interesting despite its technical aspect. I didn't post this for a digital vs analog discussion. We've beat that horse to death several times. I play 90% vinyl. But I still can enjoy my CD's.  

https://www.fairobserver.com/more/science/neil-young-vinyl-lp-records-digital-audio-science-news-wil...
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You aren’t the only one selling things. I machine tweeter lenses called MAHL tweeter lenses as replacements for two of Klipsch’s tweeters. I just never pushed them here because this is not a very big Klipsch site.Look up MAHL on ebay to see.


Looked it up, pretty neat stuff. Trying to get a better impedance match on the air vs the throat and dome?

machining the throat/horn is a bit of a bear, I’ll wager. that’s some painful bit of CNC work, probably with some notable finishing work. (I bought a 5 axis CNC set up a while back)

I’m the most successful one selling things on this site.
Is Teleportation Tweak considered a "thing" or it is some other state of non-being?

The problem for the naysayers is that the science and the physics has always supported what he is doing and what he is saying. It has no method of disproving him -- rather the opposite, in fact.

Such things tend to make ’the monkey in man’ quite uncomfortable, so they use the fact argument of prior thinking projected into everything.

For if Geoff is correct, then a lot of what the linear and ego mind operates on and works hard to exist comfortably within (safe in the tree with a banana) will disappear ....and one is left.... more than a little bit groundless.
" Looked it up, pretty neat stuff. Trying to get a better impedance match on the air vs the throat and dome?

machining the throat/horn is a bit of a bear, I’ll wager. that’s some painful bit of CNC work, probably with some notable finishing work. (I bought a 5 axis CNC set up a while back)"
It is a migration from the older tweeters used by Klipsch in many Heritage speakers to a modern tractix curve inside the lens cavity. Also meant to allow for mounting more than one type of driver if you choose to experiment. The best drivers so far keeping costs contained to reasonable levels have been the B&C DE10 and DE120.

Don’t know how to answer your impedence match comment but this was tested with TrueRTA and REW to curve much better than existing Klipsch Vintage tweeters and so far measures very well against anything else offered to fit as an OEM replacement for K-77 and K-76,79,792etc too.
Machining is a breeze just using HSM and a ,007 step over with a .5" .09" corner round bull nose end mill. Stickout is 1.625 inches flute length so plenty of reach to cut it all. Modeled in Solid Edge and cut on a Haas VF4. There is no hand finishing required inside the cavity. I do buff the top with scotchbrite as I think it looks better that way.

Learning how to model this kind of part was the big problem.
Well, any finishing/programming issues would obviously show up in the metal more than the wood and I don’t really see any, so it appears to be a nice combination of quality hardware and well reasoned programming. To my relatively untrained eye, that is. (you edited to offer the buffing comment)

I mean, that Haas hardware... is enough to get an enthusiast all wiggly inside like a happy puppy.

Enough of the side discussion, I guess.... and back to whacking each together with nail riddled 2x4's of poorly thought out hack attacks.
" (you edited to offer the buffing comment) "
  Ended up having to buff the top only because the engraving left a bit of roughness to the edges for one and I like the satin look it gives as a contrast to the shiny cavity.