Who has the best midrange 2A3 or 300B ?


I was lucky enough to get a pair of Epos M5 at a great price and would like to match it to a good tube amp with a great midrange. This is for a second system in my bedroom. If I make a move on this amp is next year with my tax return. It needs to be an integrated amp. Who has the most articulate and extended midrange of the two? Budget ? Under $1500 used.
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Thanks for the info. I will be looking for a higher powered amp then since I really like this speakers.
I'd look at something based around the EL34 or EL84 tubes. The Manley amps are great with the right tubes.
Get the Rogue Cronis Magnum; can run in pentode or triode mode.  I Would not run that speakers with triode amp ( 2a3 or 300b).  To answer your questions; no doubt 2a3 is more of an even sounds ( highs, mids and bass).  The 300b tubes will be a better chose in midrange! 
Terrible speaker to pair with a 300B or 2A3 unless you were to find a Push Pull.  You might find a used unit from Opera Consonance that may meet your needs.  

The M100S Plus is a 22w Push Pull using 300Bs and is a darn good sounding amp.  It would be in the right price range for you used. 

Another option would be the Consonance Opera Reference 5.5MKii which is 18w.  Not huge power.  If you can find it use, it will be in the $1100 range.  New, it can be had for $2000 even with the current Chinese Tariff situation.  

You would undeniably be better off with a more powerful amp  A used Rogue Cronus Magnum would be a better choice but if you are dead set on a 300B, those would be your best options.  

2A3s are the ultimate tube in terms of detail IMO.  300Bs have the best mid-range which is lush and addictive.