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
There are some op amp gurus in The Lab (I think that's what it's called) over at Audio Circle. You might post there.
Bob, thanks. I'll check in there. Dave