Does anyone know the power rating of the M&K V1B ?

100W I believe. The speaker to get is the last one Ken Kreisel developed before the door closed--a guy called "The Electro Mavin" from Athens, TN bought the entire stock and sells 'em on eBay. They are the "Superfast Deep Bass." Efficient, fast, and integrate well into high end speakers. I was impressed enough to buy a second V1B and replaced the driver. I pair them with a set of Zu Druid speakers (super efficient, sensitive and fast, so no flabby or boomy bass can be tolerated). I elevated the V1B subs recently for articulation and impact where appropriate.