Sub 1k integrated?

A couple of years ago, I reached out for budget speaker advice, and ended up with the original Elac debut b6's. After an underwhelming beginning, I am onboard and have been very happy, though I do run the treble tone control a bit hot. Currently (huh huh) driving them is an about 20 year old Yamaha HTR-5560 avr receiver that I am looking to upgrade. Although is it now considered vintage and thus better than anything out there today? Maybe an interesting concept to explore in another thread...

Now to the point. On paper I've limited my choices to a Yamaha A-S801, Outlaw Audio RR2160, or the recent YouTube darling IOTAVX SA3/PA3 stack. Anyone with experience with these? Will any of these be a decent anchor piece as I slowly but surely wind on down the road?

I listen to mostly rock, post rock, metal, space rock, blues and jazz. If you are tempted to assume the metal and post rock stuff is without dynamic range, let me know and I'll send some album recommendations.  This source material is primarily played from a healthy yet strangely still expanding CD collection, played by the Onkyo 7030 with the onboard Wolfsons. Streaming is done with a Chromecast audio puck/Schiit Modi 3 setup using Google Play Music and Spotify. No vinyl in the future, and I don't need it to do home theater duty.

Thanks in advance!