Power Cord for Resolution Audio Opus 21


I'm making out my Christmas list and before I 'check it twice' I'm wondering if any Opus 21 owners could recommend a power cord ($500-$600 aprox. price range - used or new)? What cables have you tried and which one did you settle on and why? I have a dedicated line for this player, but no power conditioning at present. I run directly from the Opus 21 into my Krell 300cx amp then into B&W 802N speakers.
bwyoung
TG Audio 688 or SLVR. Both work great with the Opus 21. So did the Audience PowerChord.
I have heard Michael Wolff cords on the Opus 21 and indeed, they sound very nice, the price is reasonable and if you dont like it, he will refund your money, it can't be beat for the price.