For about a year I owned (given to me) a Classic60. I then had to return it a year later (complicated story) and then went with a VT130. Since the CL60 is the bigger brother to the CL30 and the VT130 along the same time as the VT50, I feel my experiences between these two probably parallel something close to the CL30 vs VT50. The CL60 clearly had more dynamics and low end extension even though it was rated at half the power as the VT130. Don't let the lower power fool you of the Classic series....those triode watts are quite something else. With the VT130 came more ambience and bloom and a more refined (extended and airy) trebles. Ultimately the VT130 just pooped out (not enough power and headroom) too often with my Maggie 3.3 so I went back (3 years later) to the Classic series....the CL150s and wow, so nice to have that bass and dynamic punch back. So far I am fine with the little bit of loss of the VT130's magical midrange as the rest of my system still has this strength. It just comes down to more punch and authority (CL series) vs the refinements in the mids (VT series). For whatever reason, there appears to be more resolution with the CL150s but perhaps with them not running at the rails as often as I had the VT130, the CL150s just are running cleaner and less strained. I can only imagine what something like the new VTM200s might do to bring on the strengths of the CL and VT series into one ultimate product.