Where to insert tubes while running a Luxman SS integrated

i do agree that if the intent is change speakers from kef to tannoy then i would hold off on any upstream changes until the new speakers are in house, then evaluate all upstream gear to make the speakers work properly in the listening room

Thing is I would not describe KEF as warm. Tannoy tends to have that adjective used to describe the sound more.  If that’s what you want then good advice atty with the speakers and go from there. 

If you want a warmer sounding speaker I doubt you would go wrong with the Spendor 4/5!

https://generubinaudio.com/shop/ols/products/spendor-classic-45

Thanks @mapman and @yogiboy . I’ll try to audition some Tannoys and Spendors (maybe somewhat of a challenge as I'm based in the US). I guess the question of whether to add tubes somewhere in the chain will follow after I acquire new speakers.

In the tube sockets