I love B&K ss amps. Superb performance, quiet no noise and warm tube-like, and at a very low price. I have the 202+ and M200 Sonatas. The 202+, 12 years old, has run 4 pair of Polk 55rti's simultaneously with no protection--the sound was spectacular. No strain at all. It now runs Maggies. Need I say more. I would suggest you use a tube preamp.
