When Stereophile reviewed the 2C's back in 1987 they used a Krell KSA 50. When I bought the Vandersteens I started with a Counterpoint SA-12 but when it started having reliability problems I remembered the review and I bought the Krell for a good price. That was back in the early '90's..I don't buy audio equipment very often. The Krell does bass very well and it's surprisingly good throughout the frequency range.