Asus xonar hdav1.3 (x2) with Burson V5i Opamp

i have now had a mere two days of using the burson v5i it replaced a dual opa627 in the buffer position on my asus xonar hdav1.3, that was initially occupied by the stock supplied (LM)4562NA having decided in short order that the opa627 was an improvement on the 4562na i never changed it out in half a decade because it seemed clear to me that opa627 was better at "tight" bass and general all round reproduction until wednesday afternoon... when i discovered how the burson v5i compares in a word : better in more words : n(much) better Full article here: http://www.head-fi.org/t/432749/the-opamp-thread/5175#post_12642543