Hi, Can anyone who might have heard both O2 and NFB-15.32 provide some impressions of the sound of these 2 products. I realize NFB-15.32 is a DAC/AMP, but  wondering if the sound of it would be an upgrade to my O2 with the purchase of an ODAC, or if they are comparable.  I had...

Hi, just signed up yesterday after having perused this site for awhile. It's like peeking out through the keyhole and seeing a whole new world of personal audio.  There is so much info to digest at times it's a bit overwhelming.   I recently puchased a DT880 600ohm and using an JDS O2 amp and...