Hi, Antun:
On James' recommendation, I chose an AES/EBU Bryston cable, and the sound is superb. BTW, I know you've considered the BDP-1, but I highly recommend getting the BDP-2 for its greater power and flexibility and its longer projected useful lifespan with evolving technologies. You will be thrilled how it sounds with your BDA-2.
Best,
Rich
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Whiney Napa Valley
The means — Bryston SP3 | Bryston 6B-SST(C) - L/C/R; 4B-SST(C) - surrounds; 4B-SST(C) - rears | Bryston BDP-2 Digital Player; BDA-2 D/A Converter; Oppo BDP-105 | Paradigm Reference Signature S8 fronts; C5 center; ADP surrounds; S4 rears; two Velodyne DD15 subs | APC S20 | Pioneer Elite PRO-1130