Hey corelli,
The Melody AN-211 is a great amp, both on it's sound and build quality. However, I'm more a 300B fan then 211 based amplifiers. However, if you want a little less romance/color -meat on the bones and more quickness/speed, but still very musical, I can see the Melody AN-211 kicking butt on the DI's. As I stated a couple of days ago I'm enchanted with the combo of the LTA Micro-ZOTL and a very inexpensive 2A3 based amp on the DI's.
Finally, my least favorite Triode tube is the 845 because it sounds like great solid state to me, therefore why not just use a solid state amplifier at that point.