Tannoy Speaker Owners

I have Tannoy DC8Ti speakers.  I'm planning to retire sometime this year, and want to try tubes before I do. I'm wondering what amps, tubes or otherwise, other Tannoy owners have. I'm only interested in power amps.  I've tried the Tannoy's with each of my three solid state power amps: Pioneer SPEC-4 (~36 years old) ; McIntosh MC2600 (~ 25 years old); and NAD M22v2 (1 year old). The NAD sounds best in my system: wider sound stage with better instrument separation, timbre, musicality, detail, etc.  

My current system:  Herron VSTP-3A(r02) pre amp, NAD M22v2 power amp, Innous Zenith MKII media player, Small Green Computer i7 for Roon DSP, Audio Mirror Tubadour III SE DAC, Parasound JC3jr phone pre, and Technics SL-1200G TT w/ Ortofon Quintet Black.

My listening room is small ~13'x12'x8'.  I listen to contemporary jazz (no John Coltrane , Miles Davis, etc) and old school R&B (none of today's Hip Hop or Rap).  I love vocals (e.g., Gregory Porter, Diana Krall, Angela Glaupo, Randy Crawford, The Temptations, Stevie Wonder, Elton John, Chicago); non-vocal music (e.g., The Crusaders, Arne Domnerus, Brad Mehldau, Dave Grusin, Stanley Clarke) and the combination of both (e.g., War, Earth, Wind, and Fire, Santana).

I'd like to audition whatever I buy in my system.  I'd prefer to start looking at amps that others are using. My budget is ~$7500, and I'm in no rush.

I'm not opposed to used, and there are several deals on agon at the moment. In particular a Zesto Audio Bia 120 that is about 60% below retail.  In my area, there are several high-end audio stores and independent manufactures that produce high-quality / reference grade components.  I realize there's the usual suspects (Cary, Rogue, PrimaLuna, Luxman, etc.).  I also plan to visit the local manufactures.