@j-wall Others have asked - what is your budget? Two names I would add are Ayre Acoustics and Bryston. As good as Pass class AB products to me. Great support from the manufacturers. Very neutral and smooth compared to Rogue Sphinx, which I auditioned before buying a Rogue Stereo 100 for one of my systems.
Both work well with speakers that drop to 2 ohms. High current amps with great power reserves and excellent transient response. Expensive. Bryston provides a 20 year manufacturer’s warranty. Can buy used knowing manufacturer will service them, if needed. Many Magnepan dealers use Bryston amps in their showrooms.
Good luck!