Who makes simple but quality sealed sub enclosures using a single 10” or 12” DLS driver and matching monoblock?

I am brand agnostic on the monoblock and I’m ok even if it’s just an entry-level model for as long as it matches the driver.

I have the classic DLS R6A front seps which I love, plus a Blaupunkt THb 210A active sub at the back. Looking to add more low end articulation while maintaining SQ and retaining the ‘Reference’ characteristics of the front seps.

Vehicle is an Innova. HU is a Kenwood DDX8034BT.

Suggestions?