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Stereophile Test CD questions

Hi all,
I just got the Stereophile test cd's, and i'm trying to figure out how to use them. I have some very basic questions, so please bear with me. First off, how does one use pink noise? Secondly, I was pleased to see that the imaging seemed to be very good, by all their tests. Thirdly, as I went through the test tone warbles, wuth progressively lower frequencies, the volume seemed to diminish. I don't have an SPL meter, so this is according to my ears. 25 Hz. was clearly audible, but 20Hz. was barely there. Does this imply that I need a sub to fill out the lower frequencies? My room has no treatments, and the speakers are close to the wall, thanks to WAF. I plan to get a room in 6 months or so, where the speakers can be in th center, if that's where they'll sound the best.
Thanks,
David
deshapiro

Showing 1 response by maxcast

maxcast
95 posts
 
When you move your speakers out from the wall the bass will diminish but imaging should improve. Weather or not you need a sub will be determined by the music you listen to and the readings you get off your new dB meter Rives talked about.

Now, if I may incroach on you thread...what are the phase tests used for on disc #3?

Also, what a difference a mike makes on a recording. We fret about copper or silver cables when a particular mike should dictate what music we should buy :P
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