I was extremely interested in this product but never had a chance to audition one because no dealer near me. Check out the amp board on audioasylum.com. A member bought one a month or so ago and there was a long thread as I recall. There was also another thread around mid-January about the Pass integrated, but no one had actually heard it yet. Also, there are some discussions on Asian/European audio boards, where the 150 came out in August 2007 (I do a lot of web checking before auditioning products).