D400 power output at 8 ohms

[user33]

I think it's worth a shot to pick up a companion d200. They've depreciated a lot so the argument is easier to make these days. I saw some impedance curves for the magellan concerto (i guess an older version of this speaker?) - similar specs/woofers with 8ohm nominal and 3ohm dip but no idea if actually the same. Comparing this to my kef blade 2, it looks like a much harder speaker to drive (correct me if I'm wrong as I understand the speaker measurements at a general level). In my case, I originally had a D200 and bought the companion unit because I wondered what effect it would have. I think the KEF Blade 2's did just fine with one D200 and outside of a few DB of headroom gained, it wasn't a night and day difference overall. However, seems like in your case it might be worthwhile...

https://www.stereophile.com/content/tria...asurements
https://www.stereophile.com/content/kef-...asurements