Shahinian Obelisk vs VandersteenTreo

If I'm not mistaken Jacqueline V. is the person you will speak with when you call Vandersteen Audio.

Jazz
i understand
no stones just want you getting as Johnny said “ what you paid for”

now about the spl meter... my understanding is that Vandertones are compensated to adjust for non linearity of the R Shack meter

i have used Audiotools and a calibrated microphone with the Vandertones disc with ok results.

note also the analog eq centers are not what you typically see on an RTA as they represent typical room issues versus octave intervals....

so for best results buy a meter meter and download vandertones

Tom,
I do have a USB mike somewhere: bought it for some room-compensating EQ SW that I never got to using...
So I guest it night work out.
Audiotools works on a Mac?

"... guess it might..."

@ja_zz 
Why don't you just buy a Radio Shack SPL Meter off Ebay and be done with it? If you were closer, you could borrow mine. (Or, you could fly me to Russia. I need a vacation...).
Using the cheapo Radio Shack meter is easier and if you run into problems, we can help you. (Well, probably Johnny).
B