Is that at 4ohms? I think the ampzilla is 400wpc at 4ohms if I'm not mistaken. Don't forget, Maggies are 4ohm. I'm running 225wpc of high current power at 4ohms on my 1.6's and I would like to have more. The 3.6's would really do well with 300wpc but should be able to drive them ok with 200watts. There's some one on this forum who has the 3.6's and I think uses a Musicalfidelity integrated with 500wpc.