petetherock
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As the brochure for Roll Royce says...very interesting , My Yamaha DSP-Z7 is rated at 140W RMS x5 and If I push it to +12 on the volume dial my whole room shakes (7mx4m), I'm not sure how may watts are I am getting in real life from my Yamaha , but I would not be happy with less than what I have now!
"adequate"
Most websites do not have the finances to do a benchtest, but given that the 7200 with similar capacitance could do 7 times 90-100, this amp with 13 channels will pump out maybe 20-30W less per channels in an all channels drive mode?
But in most situations, we don't do that, and the subwoofer takes most of the heavy lifting anyway..