Scott Nixon chip monoblocks

I will open with the usual apology for my ignorance. I don't know much about chip amps since most of my audio hobby has been older stuff. So I am unclear on the variations in technology and terminology in this space.

I picked up a pair of Scott Nixon 40 watt monoblocks somewhere in a batch of other stuff I was looking for. I hooked them up in the master bedroom. The source is an Echo Link and the speakers are Spica Angelus. I was thinking a nice convenience system. With the Echo functionality it is a nice alarm clock. And the Spicas have good WAF mixed in with the MCM décor. I am hoping they don't draw much power while idling (is this true?) compared to my class AB stuff.

I was surprised how good they sounded. They are certainly not the weak Link (see what I did there?) in the chain.

Can someone point me to the contemporary version of this amp technology so I can learn more?

Best,
John