Matyas, I too just had the speakers lying around. I find them wildly inaccurate- about all they are good for is figuring out if I have the notes right :)
Unless you have very modest requirements (very small room, near-field listening, background music only, that sort of thing) you will not find a budget-minded tube amp to drive them. I recommend 60 watts as a good minimum, although my ST-70 is driving them OK. A set of Dyna MkIIIs might do the job, but if you find a set they will need to be rebuilt- that might cost you all of your budget right there!
Unless you have very modest requirements (very small room, near-field listening, background music only, that sort of thing) you will not find a budget-minded tube amp to drive them. I recommend 60 watts as a good minimum, although my ST-70 is driving them OK. A set of Dyna MkIIIs might do the job, but if you find a set they will need to be rebuilt- that might cost you all of your budget right there!