Just got a Dual Caliber, ie - DC-2. This little thing rips. There is a "spank" about the cleans that my Express 5:25+ doesn't have. Lead channel compares favorably to my Mesa Flux Drive pedal (yeah, what a surprise), so there might be one less pedal on my board when I use this guy playing out. Only issue is it weighs 45.5 pound on our calibrated UPS scale. Now I need to find a manual and the tube layout, as I use NOS tubes in my Express, and will certainly try some NOS RCA's and GE's in a few weeks. In the meantime, this is a great little amp.
Al
Al