Analogue Devices AD825 OP AMP

Hi, I came across this OP AMP mentioned in a Stereophile review of the AH! CD player and had never heard of it before in this or other forums.
I replaced my stock op amp in my Onix CDP with a 627 and the results were very noticeable. Is it similar to the 627? warmer? cold? revealing? Just a bit curious, maybe a tweak to be pursued. Thanks, Dave

Stratos Ody Amp
CJ- PV12 PreAmp
Onix 88 CDP
GMA Europa Speakers
MAS Silver ICs