In Reply to: RE: Exemplary Review Standard posted by John Atkinson on January 26, 2017 at 04:41:13:
Hi John,Based on past experiences, I bet we're going to have to agree to disagree, but I have to put my 2 cents in on distortion measurements -- basically, they're really important to do.Total harmonic plus individual harmonic (we only do total due to system and time constraints, because we pay a lot to use a true chamber).
At the measurement-oriented companies I visit, distortion measurements are always done -- valuable working tool. Of course, not the only measurements done, but considered vital and part of the complete set. In our own experience, by measuring distortion, we have affected subsequent products for at least one dozen companies based on what they've seen when we've measured one of their current products. In a nutshell, we measure a speaker, they see the distortion, they fix it up for the next version or whatever comes next.
Furthermore, companies work to reduce distortion and really the only way to reveal what they've achieved is by measurement. When we measured the first Magico S5, it had the lowest THD of any speaker we'd measured and that information the company was happy to send out everywhere. They worked on certain aspect to ensure that distortion was down.
As a result, I wouldn't be so quick to sweep it under the carpet. As well, I think it's important to point out that most can't do proper distortion measurements because you need a really good environment to do so. This, too, is an advantage we have of using the NRC chamber -- built in a location and in such a way that has a quiet noise floor and we can measured to under 1%.
Again, you've written your paper, feel a certain way, and I'm happy again if we agree to disagree. But I do feel they're vital (and we wouldn't keep paying if they weren't), so people should know the other side.
Doug Schneider
SoundStage!
Edits: 01/26/17 01/26/17
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Follow Ups
- RE: Exemplary Review Standard - Doug Schneider 17:37:08 01/26/17 (21)
- RE: Exemplary Review Standard - A.Wayne 08:22:47 02/01/17 (1)
- We Use Output Level... - Doug Schneider 07:19:32 02/13/17 (0)
- Help me understand why - E-Stat 06:40:54 01/27/17 (18)
- RE: Help me understand why - tomservo 07:47:25 01/27/17 (1)
- Thanks for the detailed reply - E-Stat 08:31:24 01/27/17 (0)
- RE: Help me understand why - Doug Schneider 07:18:34 01/27/17 (15)
- That would be the person - E-Stat 08:24:11 01/27/17 (14)
- Example: ribbon tweeters - Doug Schneider 09:42:27 01/27/17 (13)
- RE: Example: ribbon tweeters - A.Wayne 08:31:55 02/01/17 (0)
- Very well - E-Stat 10:29:26 01/27/17 (11)
- RE: Very well -- I have not heard the Scaenas or Nolas, but . . . - goldenthal 19:45:40 01/28/17 (3)
- RE: Very well -- I have not heard the Scaenas or Nolas, but . . . - E-Stat 06:30:42 01/29/17 (2)
- RE: Very well -- I have not heard the Scaenas or Nolas, but . . . - goldenthal 12:25:47 01/29/17 (1)
- RE: Very well -- I have not heard the Scaenas or Nolas, but . . . - E-Stat 15:30:06 01/29/17 (0)
- RE: Very well - Doug Schneider 10:43:02 01/27/17 (6)
- RE: Very well - E-Stat 10:46:49 01/27/17 (5)
- RE: Very well - Doug Schneider 11:29:53 01/27/17 (4)
- Michael Hedges? - E-Stat 12:23:56 01/27/17 (3)
- RE: Michael Hedges? - Doug Schneider 13:48:49 01/27/17 (2)
- Thanks for your input -nt - E-Stat 14:00:28 01/27/17 (1)
- You're welcome ... nt - Doug Schneider 14:02:54 01/27/17 (0)