Everything you note in these areas the STD is far superior , it's like going from a somewhat good preamp ,to one where the sound is stunning, the STD is very very very quiet , thus enabling tons of micro detail,soundstage is vast ,there is a lot more weight in the bottom ,which all hovland products seem to be lacking compared to the ruby , even the hovland radia which a friend bought has little to no bottom extension, vie been in audio since 1970 ,a lot of products come and go, very very few in the league of the wyetech ruby line