Has anyone tried or heard the new Tascam line of guitar amp/cd trainers? They've basically integrated their portable cd trainer into a solid state amp (a single channel 30w and two channel 60w model). The ads claim that they use some kind of "neo-tube" technology that sounds more tube-like than modelers. I could only find two clips on youtube, neither of which gave a good idea what the amp sounds like. Has anyone played or heard one of these?