Both suggestions from @Br3098 are excellent. I would offer a couple more. Take a look at some of the hybrid amps from Fatman and Dared. I own the Roth MC4 (by Fatman) and the Dared DV-6C. Both are excellent amps.
If you look on eBay for Fatman you will see a plethora of hybrid options, at about 25 Watts per channel, for about $350 to $400. The Dared MP-6 amp offers 40 watts, and has bluetooth for $360.
Both of these will give you a tube buffer preamp stage, with solid state amplifier. I upgraded the tubes in both mine, and absolutely love the sound quality. This allows you some money to get an external DAC, which will likely give you better sound quality. I bought a used DacMagic off ebay for $250, and run from Airport Express via toslink into it, and then into the amps.
You could use the DAC in the airport express through the 3.5mm plug, in the beginning, until you find the best DAC for your situation. Anyways, some more to think on. :-)
Mot
If you look on eBay for Fatman you will see a plethora of hybrid options, at about 25 Watts per channel, for about $350 to $400. The Dared MP-6 amp offers 40 watts, and has bluetooth for $360.
Both of these will give you a tube buffer preamp stage, with solid state amplifier. I upgraded the tubes in both mine, and absolutely love the sound quality. This allows you some money to get an external DAC, which will likely give you better sound quality. I bought a used DacMagic off ebay for $250, and run from Airport Express via toslink into it, and then into the amps.
You could use the DAC in the airport express through the 3.5mm plug, in the beginning, until you find the best DAC for your situation. Anyways, some more to think on. :-)
Mot