Yes, I believe that is what I'm saying. The below graph is an old one with just a 600 up front, but it will help explain what I'm seeing. An interesting note is that my graph is not as flat currently with the 350's up front and the 600 in back, which kinda goes against what Dr O'Toole and Ian have been stating about using subs up front and in back?

Anyway, when I unplug the 25ft coax from the LineIn on the 600 with the 600 turned off and unplugged, the graph from about 30hz to 50hz spikes up to 87dB's on the graph, basically a straight line across those frequencies. As soon as I plug it back in it looks how it did previously.



When Jakeman wanted me to calibrate each sub individually, one at a time, and then plug them all in, I assumed I would still have the coax lines hooked up, just power the subs off/on one at a time.


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