In my experience JMLab is more laid back and dull. The Revel is more detailed, up front and lively. The Utopia has more depth to the soundstage, but the Salons' soundstage is wider. The Salons are very dynamic and exciting, if you want to fall sleep while listening then the Utopia is the way to go. I used to own the Revel Salons and regret having sold them.