Backert Labs preamp, now a New Power Amp

I posted several weeks back that I was deciding between a new preamp or go integrated. I decided on a used Backert Labs Rhumba 1.3 and it arrived last week. The preamp came with Conn 12au7 tubes, and I have to say the improvement in overall sound quality was a huge step up to the Vincent SA-32 pre. I plan to start tube rolling but also have an itch to upgrade my power amp.

With all all positive feedback on Hegel, paired with Dynaudio, I’m considering a Hegel H20 power amp. Any other power amps that will provide a good match with Dynaudio Contour 20i I should consider? I like a wide/deep soundstage with clarity (but not clinical), and dynamic headroom. Budget is around $6k new or used
 

Considerations beyond Hegel H20:

- PERREAUX 350

- Simaudio W8

- LTA ZOTL40

- McIntosh MC152

Current equipment:

- Parasound A21+

-Backert Labs Rhumba 1.3

- Lumin D3

- VPI Prime 

- Dynaudio Contour 20i

Looking forward to suggestions and appreciate everyone’s feedback.