[Testpattern]

Thanks for the feedback Brucek.

I agree and understand the slope of the response would look like the curve you've provided. What I'm seeing is a sound trace which jumps around between 48 and 56 db (ref your graph) and remains more or less constant up through 400 hz. Sorry, I don't have a graph to submit since I'm at work. It appears as though there's sound energy being measured past the cutoff but nothing "should be there".

I would expect my RX-V2700 sub cutoff at 80hz to attenuate anything coming through the system rather quickly given the filter rolloff rate. I am sweeping up to 400hz so there is a signal present. I just cannot imagine why something remains on the graph after the 80hz crossover.

Thanks....