Join Date: Apr 2017
Location: Salt Lake City, Ut.
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I re-did some testing this weekend inverting polarity, but response was worse. In fact sooo bad, I didn't even bother to keep the file. Finally had good quiet time to run Audyssey and pleased with the result - well for time being anyway and get a bug up my rear. Actually come to think of it, Audyssey set the sub trim to -12 so for sure, I've got more adjustments to make since who knows how much it's actually beyond -12.
First graph is combined sub response pre/post running Audyssey. It smoothed out some but still have some dips I would like to resolve. I have minimal room treatments and not sure how to address the mid 20 hz drops. Luckily the the 80 hz dip gets filled in but still think its worth looking into correcting.
Second graph is with center + subs with RC on and trying to decide on crossover point. I adjusted the responses in the control tab to separate them by 2.5 for ease of viewing. Surprisingly a crossover at 40 hz appears the smoothest in xo region. Should I leave it at 40?
Last graph is preference only with trying to determine house curve to my liking - I generally like my subs 4 db hot but wanted to see what dynamic EQ would do with a reference offset of 10 db. Responses were measured with MV at -25.
Footnote: After putting all measuring equipment away, we watched Overlord with BEQ file loaded into MiniDSP. MV set to -20 and started with dynamic EQ on at 10 db ref offset and subs 4 db hot. After 30 minutes or so, adjusted dynamic EQ to 15 db offset. Much, much better.
Lots more experimenting with dynamic EQ, vs running subs even hotter than 4 db. Time will tell.
Sony 75X940E, Sony X700, Roku Ultra, Denon X6200 processing to 2 Parasound HCA-855’s & 1 HCA-750
Mission 705a L&R, dual 70c3 centers, 705 back, 703 surround & 4 Yamaha NSIC800 in ceiling
Subs- Front: M&K MX-200 & MX-150THX; Rear: M&K V-75 & Klipsch RW-12
Last edited by Kevnmin; 05-20-2019 at 11:56 AM.