Maybe, but Six Moons notes the Blue Circle NSCS "is equipped with a massive 600VA toroidal transformer and over 100,000 microfarads of reservoir capacitance for a power output of 110wpc into an 8 ohms." That is a lot of reserve capacitance available for transients. While maximum volume may ultimately be reduced compared to say, a 500W Rotel digital separate or Musical fidelity KW 550 integrated, at most listening levels I think the Blue Circle would keep up quite well with the 804's and provide a nuanced listening experience hard to get in one box under two grand, IMO.