I use to own a pair of 1.5's. I originally set them up with a classe CAP-80 (100 watts integrated amp) I also used MIT cables which are recommended with Thiels. Back then I had an old Theta Data Basic transport with a Classe DAC-1. That was my first high end system and it sounded great!
In retrospect I'd probably use a Classe 201 and try to find something like an Audio Research LS-15 (Tube pre-amp) I believe this combo would give you some great sound from your Thiels, and at a very reasonable price.
In retrospect I'd probably use a Classe 201 and try to find something like an Audio Research LS-15 (Tube pre-amp) I believe this combo would give you some great sound from your Thiels, and at a very reasonable price.