Some listening tests were conducted on the ff: op-amps:
OPA2107, OPA602, AD825, AD744, AD797, LT1028, LT1115, LT1122, AD826, NE5534, NE5532,
OP275, LF356, and LM386
and the results show that the OPA627 and AD843 come out on top. Below is the link on the full
review. It also comes with a steep price (literally).
http://tangentsoft.net/audio/opamps.htmlCheers