CA1000 can handle Abyss 1266 TC quite well, compering to SP2000 when it needs almost full volume like 130 or more, there is still more room even on high gain on CA.
They are quite similar not like KAAN Alpha which was almost night and day difference to SP2000. Still old flagship is better, more musical deeper soundstage,
in comparison CA1000 sound stage sounds congested, which is not the case when your don’t compare them to each other. Tonality is quite similar, bit more highs on CA1000,
a little bit more lowest bas on SP2000, voices are put closer on CA1000. For me SP2000 is more musical and tonal right, while CA1000 is brighter, but not bright, very good player with a lot more possibilities, can be used as streamer, headphone amplifier or source for active speakers etc.