You can easily put together a couple of icepower 500 watt monoblocks for about $800 as mentioned by Erik:
https://forum.audiogon.com/discussions/how-to-diy-yourself-very-nice-class-d-monoblocks
When completed they look strikingly similar to the aforementioned d Sonics class d m3a 1500s, inside AND outside.
https://forum.audiogon.com/discussions/how-to-diy-yourself-very-nice-class-d-monoblocks
When completed they look strikingly similar to the aforementioned d Sonics class d m3a 1500s, inside AND outside.