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In Reply to: RE: Recent and future amplifier measurements posted by John Atkinson on November 11, 2015 at 10:46:11
If you could infer the results from existing tests, why bother with power cubes at all? I think experience shows you can't draw such an inference. Unless old test data were replaced by retesting using a new method, it would invalidate the old data. There would be no valid way to compare the old tests with the equipment tested by the new method. If the new data showed that amplifiers that tested well in the past test poorly in the new test, that would cast a shadow over all previous reports. What a can of worms that would open up. Of course the power cube test still doesn't address the question of what happens as a result of reverse EMF. The power cube remains a passive load even if it adds reactive loading to resistive loading. It's closer to real world but not quite there.
Follow Ups:
> If you could infer the results from existing tests, why bother with power
> cubes at all?
Because 1) it's more complete a measurement set and 2) the resulting graph
is much easier for the reader to grasp than trying to visually integrate
several separate graphs.
John Atkinson
Editor, Stereophile
Peter is not using his anymore John, maybe he will donate it to SP ..... :)
Go Rossi ......
> Peter is not using his anymore John, maybe he will donate it to SP... :)Peter Aczel once described me as "Highly intelligent, extremely competent..."
forget the rest of what he wrote :-)> Go Rossi ......
Alexander Rossi? Watched him compete in Austin 3 weeks ago. Impressive drive
in an uncompetitive car.
John Atkinson
Editor, Stereophile
Edits: 11/12/15
Yep Alex Rossi is a fantastic young driver, following him from His Karting days was disappointed to hear he is not with Haas's attempt next year , maybe he has a better ride in the works ...
As to the other Rossi , he was done in by the Tres Damas .... :)
Go Rossi ......
Edits: 11/12/15
Wifey and I went to COTA last year and to Montreal in June, but scheduling didn't allow us to go to Austin this year.
We're planning a trip to Silverstone next summer.
Oh, you mean the other F1.
"You won't come back from Fletcher-Munson curve"-Jan and Dean
this flavor . :)
Montreal ....
Great atmosphere , Silverstone will be an eye opener if first time , fanatics Galore .....
Go Rossi ......
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