Cambridge Audio 840W with Totem Mani-2?

I am soon to upgrade to the Mani-2 from the Rainmakers (Totem fanatic) and have read many reviews underscoring the need for a terrific amp for them. Has anyone tried the Cambridge Audio 840W power amp with the Mani-2s? How about the various Bel Canto monoblocks?
I've never paired them with cambrigde, i've used others such as MCcormack or bryston. All you need is a good has to be very powerful and able to drive low impedance.