I have a pair of 1.5s driven with 100 watts solid state and a tube preamp. I have the impression so far that more power would help them to shine with rock music, but with other music I am totally in love with them. I feel alot of great rock songs were not the greatest recordings and since these speakers really show things the way they are upstream, the higher volume levels most of us would play rock songs at make the bad ones even worse. My amp may not have the iron grip on the panels the way a more powerful one would, and that would definitely help in the bass. If you want to shake things in the house with every beat then I would look elsewhere, but if imaging and purity of tone are important give them a listen.
