After owning the Electrocompaniet ECI-3 amd Simaudio Moon I-5 solid state integrateds, I have found true happiness with the BC21 tube preamp and BC22 solid state amp from Blue Circle. Being that the BC22 is rated at 120wpc versus the 70wpc for the two integrateds and having a nice tube preamp as a compliment, I find the Blue Circle combo to be more dynamic and much smoother. Overall, very good dynamics, liquidity and amazing soundstaging.