JBL Studio 2 series was the first series of home speakers based on the design and using trickle down tech from the M2 flagship studio monitors.
Sunfire Theater Grand 3
When I upgraded my home theater to immersive audio I moved the Theater grand to 2 channel duties in my desktop system. It sounds great and has some features like the sonic holography I like.
Carver AV-505
This is a 5 channel amp that I use 4 of the channels to bi-amp the JBL 230 speakers.
Parasound Z-Dac
I love the Z-Dac in my desktop system, an upgrade over the one in my preamp.