Earl Geddes of Gedlee measurements Jan 24, 2017 17:30:38 GMT
Post by arnyk on Jan 24, 2017 17:30:38 GMT
He takes a somewhat similar approach to audio namely the scientific one and has written quite some renowned papers it appears. Ethan and Geddes agree on a lot of things that is clear. This is interesting because they come to almost opposite conclusions. A interview with him about his views to read: www.dagogo.com/an-interview-with-dr-earl-geddes-of-gedlee-llc. One of the best about audio in general from my point of view.
For example, he states:
"In the study that Lidia and I did we confirmed that THD and IMD were basically useless indicators of sound quality because the measured values for either of these metrics did not correlate with the perception of music played through the system."
Now before you come in criticizing him using the word 'perception' to prove his claim; read the interview. He has a small speaker company and claims that his speakers are the best value for the asking price. He sells his designs as a kit or assembled. The reviews are VERY good. His company is for sale now due to his age and no new speakers are manufactured. The latest design is his Geddes NS15 speaker a few months old. His approach designing them is in short this:
- Low distortion where the human ear is most sensitive
- Speaker directivity to avoid reflections thus avoiding ugly and expensive room treatment
Do you believe that these speakers could possibly sound better than Mackie HR824's? Have a larger sweet-spot? In an untreated vs a treated room?
Looking forward to hear your opinions!
Earl is a long time friend of mine and many other people who have audio as a professional or avocation, particularly in the Detroit area where he was raised and has lived for the past decade or so. I've heard his speakers as he developed them and also as he commercialized them. He's among the two or four most knowledgeable people about speakers and audio in general that I know. I knew him before he got his PhD. He's somewhat younger than I so I suppose I can say that there was a time when I knew more about audio than he did. ;-)
Comparing his speakers to Mackie HR824's is more than a little bit unfair, as his speakers are generally significantly larger and far more expensive. I've heard both on many occasions but never compared them directly. They both IME generally sound good given a reasonable room and program material. I suspect that Earl's larger speakers measure generally better for distortion, frequency response, and directivity. They might have a larger sweet spot because they probably have better control of their directivity. Again, they are so different in orientation and cost that there is really no totally fair comparison of them.
As far as mentions on the web goes, I believe that just one of the possible ways to write my name, and the one that is most likely to be limited to just me, has over 3 million mentions per Google (IME optimistic for everybody). Then there are the other ways of writing my name that I have used in the past. I've been posting on the web and Usenet before and then over the web, going back into the 80s.