Synergistic Research SR20 AC Master Coupler Power Cable

Excellent condition is a good sign here, but A$560 is firm to a touch ambitious for this cable unless it’s the longer 2m version or comes with very strong provenance. Recent used asking prices I found cluster around roughly A$370 to A$480, with one older forum sale at about A$300 each or A$560 for two, so this sits above the usual single-cable lane rather than below it.

That said, this is a well-regarded older Synergistic cord: buyers typically want it for the cleaner, more open presentation, sharper transients, and tighter bass it can bring to a system. In excellent condition, the upside is mainly low-risk ownership of a respected reference-era power cable; if the connector type and length match your needs, it’s a sensible buy only if the seller is firm on condition and the cable is complete.