I have the Quad 2805 speakers and use a Mc275 (75 wpc) and a Rogue Cronus (30 wpc in triode). Both drive the Quads great although the Mc275 fills my 20 X 40 listening room better.
When I had a smaller listening room, the 30 wpc Cronus did just fine.
Dave
When I had a smaller listening room, the 30 wpc Cronus did just fine.
Dave