I would recommend a solid state amp, matched with a tubed preamp. That is what I have been using with my N803s for years now.
For the past 2 years I am enjoying my speakers paired with Pass Labs X250.5 amplifier. I had an Audio Research LS-25 preamplifier, Audio Research Reference One, and now have BAT VK-51SE. Tube preamps is all that's needed. I'd concentrate on the best solid state amp, but pair it with a tubed pre.
Keep in mind, B&Ws have warm and full midrange. This is their trait. If you are going with a tube amp for B&Ws, you need to be familiar with the sonic signature of that particular amp and you have to make sure it provides adequate power for your speakers.
Another option may be a hybrid amp, such as Moscode 401HR or one of the Blue Circle amplifiers. I'd still pair those with a tubed pre though, but one that is neutral.
For the past 2 years I am enjoying my speakers paired with Pass Labs X250.5 amplifier. I had an Audio Research LS-25 preamplifier, Audio Research Reference One, and now have BAT VK-51SE. Tube preamps is all that's needed. I'd concentrate on the best solid state amp, but pair it with a tubed pre.
Keep in mind, B&Ws have warm and full midrange. This is their trait. If you are going with a tube amp for B&Ws, you need to be familiar with the sonic signature of that particular amp and you have to make sure it provides adequate power for your speakers.
Another option may be a hybrid amp, such as Moscode 401HR or one of the Blue Circle amplifiers. I'd still pair those with a tubed pre though, but one that is neutral.