In the development of Pritchard amps, I ran into a variety of less than accurate information starting with a lot of "common knowledge" concerning tubes versus transistors and continuing on and on. The errors in this knowledge leads to inaccurate prejudgements that have become quite evident. The question of tube versus transistors must also include the circuitry surrounding these devices perhaps even more than the devices themselves. There is a rather long discussion of the more important issues at the following link:
http://www.pritchardamps.com/pritchardamps/tech_talk/audio_myths.htm
Eric
http://www.pritchardamps.com/pritchardamps/tech_talk/audio_myths.htm
Eric