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Tweeter/Mid minimum amp power rating for magnepan 20.1 in active setup?

I have a pair of mint 20.1s in light oak, and I'm currently running them active, using a DBX analogue balanced crossover.

I am currently using a class A Plinius power amp for the tweeter/mid drivers and a pair of 600w monoblocks for the bass drivers.

I'd like to replace the plinius with a pair of valve monoblocks, but I'm unsure what the minimum power rating should be? Ideally, I want to use 845 or 300B tubes, but it is tough finding anything above 40w.

Any thoughts?
psilonaught
russ69's avatar
russ69
3,419 posts
 
Duke has it right. I'm 50% with tube amps on Maggies, some work some don't. Magnepan has never demoed with tube amps, that might tell you something.
psilonaught OP
4 posts
 
thanks guys.

I think I need to stick to something with 100w minumum for the top end, therefore. Something audio research is probably a good idea I guess.
djones51
4,947 posts
 
Not sure how much this would help with your speakers but it might give a general idea.
https://www.crownaudio.com/en/tools/calculators
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