<html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> <body bgcolor="#FFFFFF" text="#000000"> I agree with Phil's comments. Those certainly look like Boundary mics (also called pressure zone mics).  I'm certain you'd get a better result with them anywhere but on the soundboard! In addition to Phil's  suggestion of underside of lid, or floor, you could try them on a low table under the piano to get them off the floor. All those positions are going to give a "close miked" sound.  For more ambience, you could try the two mics on a table, and try the table at various distances from the piano to hear what gives the best results. Best regards, David. <a class="moz-txt-link-abbreviated" href="http://www.davidboyce.co.uk">www.davidboyce.co.uk</a> These appear to be “pressure zone” or maybe “boundary” mics – these are not “contact” mics or “pickups” – they’ll likely exhibit nearly 100% rear rejection – although messy, these mics will probably sound orders of magnitude better (more accurate) stuck to the underside of the lid, opened or closed – alternately on a reflective floor directly under the piano<o:p></o:p> <o:p> </o:p>Whichever way you go, let your ear decide on proper placement  (sounds good? You did it right. Sounds bad? You did it wrong.)<o:p></o:p> <o:p> </o:p>Personally, I wouldn’t let anything touch the sound board. In my experience, doing so has an audible negative effect.<o:p></o:p> <o:p> </o:p> Phil </body> </html>