Making a difficult decision

I am trying to decide between a peachtree nova 150 or a parasound 135 both are intergrated amps. The parasound has a lot of power and connectivity options. The peachtree has power and connectivity also but what worries me is in the reviews I have read the build quality and the power supply not discussed. The parasound weighs47# the peachtree is only 17# this concerns me some. I plan on using them to drive my Magnepan 1.7s. Any thoughts?