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XTC Room Analyzer

With regard to the XTC analyzer, what is the difference between this, and putting two unidirectional mics (my Sure SM58s?) pointed at each speaker, feeding this through some DAC into two digital tracks on my computer, and doing an FFT in Matlab to look for frequencies with obvious accentuation? Am I understanding XTC correctly? What more is there to it?

Thanks.
Jim
river251
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kr4
3,677 posts
 
1. You should look at the XTZ site (and/or my review in Stereophile) to see the differences between the models.

2. Yes, if you are going to do any FR measuring with a microphone, it should be calibrated. I believe you can have it done for less than $100@. However, I do not believe that it is worth doing for the SM58 as they are basically not suited to this application (above the bass).
river251 OP
154 posts
 
Thanks, Kal...wondered if that was you. We chatted neuroscience at Stereophile in LA in 95 I think. I was a lowly grad student then, am tenured now :-).

Jim
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kr4
3,677 posts
 
Congratulations. Buy yourself a present.
river251 OP
154 posts
 
Kal,

It looks like you have reviewed a few analyzers. If you then tried putting the resulting curve into a parametric or other EQ device, and can you comment on whether there is an effective EQ that will not have detrimental effects on the overall system's sound quality?

Thanks. This one would be tough to get an answer to. You are in a unique (and enviable) position, having the opportunity to listen to many components.

Thanks,
Jim
kr4's avatar
kr4
3,677 posts
 
I have reported on the use of XTZ filter curves with the Classe and Rotel processors.

Kal
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