I have the VSM-MX's and I have owned the Joule LAP150 Mk2 and the Shindo Monbrison. The amps I have used them with are the Quicksilver 6C33C Triodes. The Joule is a more technicolor and expansive sound that is absolutely intoxicating, while the Shindo has better pitch definition is more "accurate" and very emotionally involving. Very different sounds. Which one to choose ??? It's clearly a matter of personal preference.