[Dave M.]

Scott,

You'll get much better results by spending some money. Find folks who are
somewhat knowledgeable about music. Music schools and univ. music depts are
full of such people so put up ads there. Offer $25/hr for their time. Have a
good playback system in a comfortable room. If it's a long trial schedule
break time.
A pleasant test and reasonable money will attract participants through
word of mouth. It should be easy to do this in a double-blind fashion, too.
You may be able to recoup some of your money by getting an article published
in an audio magazine.

Dave M.