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In Reply to: RE: There's more than one way to do that... posted by Ralph on September 18, 2015 at 13:04:12
'cause that all sounds like more subjective opinion, not fact.
try it! you know you want to!
Follow Ups:
I've yet to see anyone that was objective- they all express subjective opinion sooner or later...
But actually its been well-known since the 1930s that the 7th harmonic even in trace amounts (0.01% for example) is quite audible and contributes to brightness and harshness. If this is news to you then you need to read up.
Our good friend John Curl has been trying to pound that into my thick skull. :) He's been a student of the study of distortion types, their audibility, causes and solutions for darn near his entire career, as far as I know.There isn't anything "magic" about the 7th harmonic, it's just that that's approximately where it starts to become noticeably dissonant and irritating. There are good reasons for this, as we all know.
:)
Edits: 09/24/15 09/24/15
and that is why it was detected as a harshness 'way back in the 1930s...
John Curl is spot on BTW...
Yes but the odd (and even) harmonics above 7th are all dissonant and increasingly so. To be avoided (at least at low power) if at all possible. You become more tolerant of increasing distortion and higher harmonics as the SPL goes up...this is why Cheever's metric is SPL dependent.
Well the class-D im playing with now is very tolerant at low levels , suprisingly so , makes you want to go up in levels and then headache reach for the volume at higher levels .
So no silver bullet yet .....
Is it an ncore? Or something "worse"?
I polled my friend now on his opinion from our Wilson/Devialet adventure and he too was underwhelmed. He said it was all head and no heart...it just didn't pull you in and make you want to listen in particular...a 50K background-while-you-work system...not hold your attention at all.
All WA speakers does that to me , exception in the past , was Watt/puppy on spectral Gear. Most recently i have heard them on Dan D'Agostino's new amp and VTL, both very under whelming, not my sound.
Edits: 09/30/15
The original X1-Grand SLAMM with KR Audio was pretty awesome...I repeated this awesomeness with an X1-MK3 in a shop in Switzerland.
The WP7 sounded quite good with Lamm ML1.1 monos as well and not bad with a big VTL rig...all other demos I have heard were far from great.
I must amend my earlier post in this sub-thread, regarding the 7th harmonic. While in the midst of creating a table which would show why natural harmonics don't line up with equal temperament tuning, somebody wisely sent me a table which had already been created (Thank you!). In fact, although many harmonics are dissonant with equal temperament, the 7th really sticks out like a sore thumb, so, there IS something magic about it.
You can view the table here: http://www.phy.mtu.edu/~suits/badnote.html
But be careful - you could end up spending the next hour or two reading all of the linked pages!
:)
Thanks for the info! I will look into your link.
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