I own the solos and just purchased a Musical Fidelity A3cr amp to drive them. I can say that the musicality of this amp...transparency etc. Far exceeding its cost. This sounds so magical and images great. However, for these speakers, I just dont think the MF has enough gas. On some tracks, the bass can be downright anemic. I am only guessing the integrated would offer similar bass performance. Remember, these are some of the most power hungry speakers out there. Period.
For what it is worth, the rowland and levinson integrateds sound great. Plenty of power!