Yes, barring a Phoenix rising from the ashes (and after this debacle, would it still fly?) Spectre is a dead duck, sadly.
However, I appreciate that, although monetarily at loss, I can continue to enjoy what Super Lumina brings to my music-listening pleasure. Done chasing rainbows.
Chord Music as another SL contender is way above my means, thankfully. My speaker cable ‘upgrade trail’ is over, and I’m kinda relieved in a perverse way.
Almost all of us regard A5 as great VFM and a ‘never wrong’ choice, like Nam standard interconnects. Most people who have tried SL speaker cable or interconnects seem equally happy - except with the price of course.
WH made some very good cables imho, but they were never the only non-Naim choice. For speaker cables, Tellurium Q and Kudus are well-liked by many. However, not many seem to give up SL once they try them.