This is easy for me, the biggest mistake I EVER made was buying the ESCALANTE DESIGN FREMONT Loudspeakers. Nothing else comes close. They retailed at $18,990 and had some positive reviews so bought them unheard. Never sounded good out of the box (4 boxes totaling almost 600 pounds!) and was told they take 250 hrs to break-in. After 500 hrs they were still unlistenable. Sold them for maybe 3k. Biggest waste of time, effort and $$$$$$. Here's a link to a review.