Bueno, si nos guiamos por lo que dicen en Soundstage (con cierta fama de neutral):
"The CD 303/300 sounded a variety of ways depending on which output section and sampling rate were used." "The tube output section exhibited good detail and tonal color, and it painted a nice, open soundstage. The solid-state output section’s high and low frequencies were quite extended and detailed." "Through the midrange, both output sections sounded just a bit forward."
http://www.soundstage.com/revequip/c...o_cd303300.htm
parece que hay más diferencias de las que comentas.
Salud.
César