What's the best EL84 amp?

It has lovely balls. It's winning me over.

1+ Manley Mahi Mahi.  Terrifically musical, easy to bias and run great current.  Took them to a shop once to demo their Martin Logans ESLs and they ran the crap out of them.  Salesman was shocked.  They are fun.

@dhcod It’s the amp. I tried to solve the lean base issue with tubes as well. It didn’t work. A subwoofer will though! 

Bent

The RM-10 is magical in the mids, silky in the highs, but bass shy.  I have run mine regularly with a subwoofer.  

All true so far. My guess is it's going to be a great amp to have, sitting next to my SET when I am on a non-bass kick. I sounds awesome and is a work of art.

I was hoping to replace the SET but maybe I just need to keep two amps to use depending on the mood...