It depends on the amp. The large Musical Fidelity ones, NuVista, TriVista, 500 and 550 would do a very good job. The Krell 300, the new one that retails for $2500, should also do a good job, it is surprisingly powerful. Gamut also makes some good ones. What you will find that the good ones are not especially cheap or small. The MF ones weight 110 lb., thankfully divided into two units. They are in another class entirely from Adcom and the like. When I was a B&W dealer I drove the 801s I demoed with a Crown SL-2 (?) , which could pulse 1600 watts. High power and especially high current capacity is necessary, you can find these in an integrated amp but you have to look carefully. There was a MF 500 for sale on here recently for $2900, I think this would be a good choice both for value and performance.
