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recommendation of a sound level meter


I currently have a pair of Quad 988 loudspeakers, Thor Audio TP 60 monoblocks, Thor TP 2000 preamplifier and a
Cary 306/200 CD player. I am attempting to cure the
problem areas in my listening room. At this point I am not really sure what they are. It was recommended that I purchase a sound level meter to help me. Can anyone recommend a sound level meter besides Radio Shack that is
very accurate and reasonably cost effective. Thank you for any light that you can shed.
kjl
subaruguru
1,353 posts
 
Rives,
Thanks a bunch! Pp 3-4 should be required reading for all A'goners. I'm surprised a bit that the RS's treble peak is relatively low Q...it's a better mic than I thought.
Thanks again. Ern
ozfly
887 posts
 
Rives, thanks -- nice site by the way. I had two or three different adjustment factors for the RS meter. Your correction factors line up exactly with those Sean posted a few years ago. Now I finally know which to use. Now if I could only get my system down to 10 Hz ;-)
dmitrydr
221 posts
 
Rives, if my understanding is correct, your CD is made for stock RS meter. Does it mean that it's not usable in case I'm using an external mike?
rives
953 posts
 
Dmitrydr: I'm not sure if I know the answer to your question as we have not tested an external mic. However, I can tell you this much:
1. The majority of the correction is for the C weighted circuitry. The remaining is for the fact that this C weighted circuitry is not quite right.
2. The external output of the RS meter is not weighted in any way and is just about flat up to around 2k. Above that the response is somewhat iradict and a better mic input would likely improve the response.
Hope that helps.
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