I have a pair of 1.5's mated with a 4B-ST/Rogue 66 combo. Source is an Arcam Alpha 8SE and it meshes well. IMHO, your preamp, if you go with a straight amp, may have a greater effect on the outcome. If you do look at a Bryston amp and consider coupling it with a Bryston preamp your choice of source will be more difficult as this pair will be very revelaing. Just my opinion...
