I'll drink to that :D sipping my decaffeinated coffee ha
I'm also currently listening with my K701's through my Sansui 505 and boy do they sound good :) I have a notch of bass on and a notch of treble off. The bass and soundstage is very good indeed with some cool Jazz. They really do work well with these vintage amps. Apart from the older hifimans, they must be the most power hungry cans out there.