tube amplifier for classical music,large orchestr.

Hello

I'm thinking about buying tube amplifier. I would like to ask you for advice to select the appropriate tube amplifier for high quality and realistic listening classical music (mainly large orchestras, symphonies, concerts, ... 19 and 20 century), price in 6 000 USD. The amplifier must have good dynamics and good bass, this is important for listening large orchestras.

I would like to ask:
- is more suitable single ended or push-pull?
- is more suitable amplifier with tubes 300B or 845, eventually which other tubes ?

Yet seem to me suitable Opera Consonance Reference 5.5 or Antique Sound Leyla or JJ322, of course I like to get recommendations. I prefer the dynamic and natural sound with the good space, resolution, micro dynamics, fidelity ... I listen mostly classical orchestral music from LPs (large orchestras).

Now I have Electrocompaniet ECI 2, which is very good. I am afraid that the dynamics and bass by tube amp will be smaller and weaker than has ECI 2, am I right ? Speakers I have 2.5 band with 65 liter bass reflex, made according the project to Zaph|Audio - ZRT - Revelator Tower. Sensitivity have approx. 90 db impedance is 4 ohms . I have upgraded turntable Lenco L75 + arm Jelco SA-750D + Shelter 90X cartridge.
I have a smaller room.

I read a lot of tests, but the personal opinions is important to me.

Thank you for your recommendations and comments, best regards

Milan