Quatro Wood best feet

Zee
yes you need the RS Analog , the Vandertones are calibrated to that
it should be $30-$40 on ebay

@tomic601 there is Realistic Radio Shack Analog in good condition listed, is it same as RS  RS Analog?
https://www.ebay.com/itm/Realistic-Radio-Shack-Sound-Level-Meter-w-case-Cat-No-33-2050-Vintage/16342...

zee that is the one! 9v battery required

@tomic601 Sure will grab it, Thanks!
@ctsooner RV just replied that both 1.5 or 3.0 granite is OK as long as compensate for the tilt, time and phase aligned. Guess you can stay with what you have, that will also make me easier to find a pair now. 2 inch is just rare to find.

thanks so much. Yes, Rutan (NJ Dealer) just told me that 3" is fine. I thought that's what Richard originally told me to get.  I'm excited.