Alot of bad recommendations in the thread. Skip the EF2A, I'm going to be harsh but the amplifier sucks read some of the reviews here. Bottlehead Crack is great but is more expensive and $279 is the diy route not including the cost of tools if you don't have any.
The T1 is the only decently well amp that I can think of as of now if you want some good tube sound. Project Sunrise is a good amp too, but it is diy again.
Are you basing this off what others have said, or have you heard the EF2A yourself? Not into DIY so that's not an option. And also, the T1 is not a Tube Amp, it's a tube DAC. Even without the tube it plays.
I think the other posts were more helpful, but thanks.