Best budget preamp for Aragon 8008bb and Thiel 3.6

I am rounding out my "new to me" system. So far I have Thiel CS3.6's. For this very hard to drive speaker pair I have an Aragon 8008bb on order. Next are the preamp and source. The vintage and costs of the previous on the used market should give you some idea of where I am price wise.

I am not particularly interested in looks or bells and whistles. Sound is what counts. I once called myself a "connoiseur of the most for the least". Well, that's not quite true, but if I can get it done for less my wife is happy, and when my wife is happy I feel like a King!

I once again turn myself to those more expert than I (that means you)!

Thank you for any ideas you may have on a preamp for me,
Ron