I really think going to a different pair of speakers would make the most sense, the Bose 901's are just so sonically antiquated. I was a young audiophile when they came out, and never did warm up to their sound even back then. Most everyone I knew who had them would always set them up backwards. That is, the multiple driver side facing toward the listener instead of the rear wall. BUT. If you like their sound, keep them and go after a good high current integrated amp....
Cheers,
Tim
Cheers,
Tim