Posted by Earl Geddes [ 69.209.184.247 ] on February 20, 2006 at 10:18:22:
In Reply to: Re: IDEA posted by Wayne Parham on February 19, 2006 at 19:45:27:
This may sound like a good idea, but unless you do things right you will get more noise back than results.
And Wayne, you are missing my point, and miss reading or miss interpreting what I said.
None of the components were "cheap" they were all very well designed and built units, nothing Chinese. They still differed in price by about 5:1.
And I also never said that no one could hear a difference, they probably could. But you seem to be confusing audibility with preference, which is quite common. They are most distinctly NOT the same thing. Audibility is the much easier thing to test for than preference. I do not doubt for a minute that you could tell the difference between a JBL driver and a cheap Chinese copy.
I do doubt that you could consitantly rank order your preference for three different systems where only the compression driver changed between three different manufacturers of hi-end products - like JBL, B&C and TAD. You and maybe others could probably tell they were different, but I doubt that there would be a statisticaly significant rank ordering of the results.
There is no point in your doing a blind subjective test yourself if you can so causually throw out the results of others, like ours. You either accept blind results or you don't. You don't get to pick and choose the ones you accept and the ones that you don't.
At Ford we did a blind test of three sound systems and asked our eight "expert listeners" to rate them in four categories. Of the eight only two could be relied upon to yield consistant results in a statistical sense.
So while I support blind tests, you guys are going into this thing with a nieve point of view. It's highly unlikely that you will be able to "put this thing to rest" and very likely that you will mess up something making the results null or questionable. These are not trivial things to do and of the tests that I have seen, few have been done to an acceptable standard to be called "scientific." And almost none of them "put things to rest".
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