amateur needs amp advice for a 2.0 setup - please

hey guys, i am new to this stuff and would love some advice from more experienced people

i just bought a pair of rc10's to use for a 12x12 room.. ive heard they got good bass so i probably wont add a sub

my chain will be PC -> cambridge audio DACmagic -> ??? -> RC10

i have about ~$500 to spend and i love tubes, what would you guys recommend for my situation? how can i get the most out of my rc10's? the budget can be stretched a bit if it's worth it

i will be using it mainly to listen to music from my computer, and also movies ~20% of the time

thanks