driving LSi15s

Is anyone using at least 200-250 wpc to drive your LSi15,s?.If so what are you using?.I am using a 150 wpc integrated,but am convinced I want at least 250.I like to listen at fairly high levels.I will appreciate response if you are using something in the upper 200 to 300 range,and whether you are happy with it. I have been considering bi-amping,going with separates,or just more power in another integrated.Thanks. p.s.,no I have not measured the spl during my listening.