Good Suggestions for Tube Amps under 6k

+1 Charles Dad line magnetic 805

or 845. 

I would go for Atma Sphere MP-3 preamplifier + Atma Sphere M-60 tube amps. MP-3 is also the best preamplifier you can have for your money and probably the best value for $$$ in audiophile world. If you need more power or you want to save some USD, you can replace M-60 with Atma Sphere Class D. Deadalus speakers usualy have 8 or 6 ohms and, more importantly, a flat impendence curb. In this situation OTL amplifier such Atma Sphere M-60 shall work just fine, and will provide you all benefits of the tube technology without any disadvantage. Speaking in general, tube amps are happy with high efficiency / high impendance speakers. A good tube preamp such MP-3 will sound (much) better than almost any solid state preamp. Keep in mind that preamp is the "conductor" of the system.

Primaluna

@gregjacob   The LTA Ultralinear + is on sale for 10% off until April 30. I noticed that when i researched it FWIW. You save $765

Lampizator 211 Balanced Monoblocks.  Tube amps are excellent and the synergy with the Lamp DAC will be fantastic.  I listen to them on Daedalus Apollos.  I'd part with for $6K, they are $18K new and can't order them this year from Lamp. Interested let me know.