Ceph44, I don't have direct experience using the Audio 1 oil caps for coupling (though my impressions of the cap in a PS application seems to mirror those who have).
I'm sure they would be 'smooth' if that's what you're after - I was initially beguiled by the sound of the stock PH302.
However, if my experience is anything to go by, I'm guessing you'll eventually grow disatisfied with the sound because at the end of day it makes music sound less real. YMMV.
I'm sure they would be 'smooth' if that's what you're after - I was initially beguiled by the sound of the stock PH302.
However, if my experience is anything to go by, I'm guessing you'll eventually grow disatisfied with the sound because at the end of day it makes music sound less real. YMMV.