Tube amps under $7500

I understand the cosmetic requirement.  But, why insist on balanced connection?  If it is that important, you would be limited to truly balanced tube topology and I would bet that is pretty limited (like Balanced Audio Technology).  Otherwise, even if your sources are only balanced out (very doubtful), you can use an adaptor.

Also, you say you have limited the field to three choices.  If you tell us what the three are, you can get some opinions on them.  For my own personal taste, I hope they do not include Primaluna or modern McIntosh.

@larryi I realize true balanced, end-to-end, is a tough ticket. But I believe DAC & pre both fully satisfy. Phono stage does not, but vinyl use is down to "on request only" at this point. This forum very quickly talked me out of Prima Luna, and I was already inclining against Mac for other reasons. Top choice at the moment is ARC VT80SE but seller may be getting cold feet on that one.

Lab12 Suara.  $5400 (new).  60w.  4 ohm taps. Balanced.  Cool factor.  

@mdalton 

OP wanted romantic sound. As much as I adore my Lab12 Integre 4 MKII (and by extension Suara) they are definitely not romantic and tubey. 

The ARC VT80SE is a fully balanced amp so it fits your specifications.  I don't consider it a warm sounding amp, but that is a very subjective judgment.  I have never heard the Lab 12 Suara, but, nothing in the description suggests that it is fully balanced.  Just because a component has balanced input jacks does not mean it is fully balanced (the jacks might be there as a convenience).