SS to valve

Thanks Spencer. I should have indicated that I'm looking for recommendations. 

Switching from s/s to tubes may not be a step up....  Modern day amps from both camps meet in the middle of sound expression.  Make sure the amp you buy is the one that pleases you most, after trying out others.

Manley Snappers mate quite well with Tannoys.  stringreen is right, I have Tannoy dc8 and am using  a solid state amp from Blue Circle.....it is very close to the middle especially with my tube preamp.  Best of luck in your search.  Regards.....

Although your Gamut is a great amp, it’s massive power ability is wasted on the Tannoy’s as they are very easy to drive.
Gamut specs:

Output power 8 ohm 1 x 250 watt
Output power 4 ohm 1 x 500 watt
Output power 2 ohm 1 x 900 watt

You would probably be better of with a good Class A amp like the smaller XA .8 series Pass Labs amps. Or if tube floats your boat, a good push pull triode mode amp. Maybe even a OTL like the Atmasphere S30 stereo or M60 monoblocks.

Cheers George

Thanks stringreen, carmenc & George. 

George could you further explain the benefits I would gain from using lower powered monos with the Tannoys?

Having only ever used SS I was unfamiliar with OTL amps & now I'm very interested...! How do the Atma-sphere M60 monos compare to the 300B monos from Transcendent Sound?
Are there any other manufacturers who produce good OTL amps?