Power Cord Recommendation for Bryston 4B SST2

I wondering if anyone can share what power cables they've had success pairing with a Bryston 4B SST or SST2. I've tried a few different - Signal Cable, Harmonic Tech, and Audio Sensibility. Each is fairy good with different strengths - with the Audio Sensibility "statement" being the best overall so far. I'm looking to spend from $100-500 and comfortable purchasing new or used. Any recommendations are appreciated.

Thanks for the help,

Clayeton