Originally Posted by ratbuddy
Sorry if I missed you having said you did this, but swap the speakers and measure again. The graph could just be showing the difference in your room's response curve in each location.
It took me awhile to re-do this process and shift around the speakers for the re-test. WAF of the Anthem ARC sound spectrum sweeps is absolute zero.
I think you were right about this. I'll put the images here to refresh the conversation.
Here are 2 measurements from different listening positions for my old speakers, both left and right on the graph. These were the ones I posted before:
The left channel has a big response divergence from the right.
Then I swapped them as you suggested:
and it looks like the behavior I was seeing before is the same based on *position*, not on speaker. Good call on this suggestion.
Finally, I did an isolation test - just one speaker at a time and the mic placed about 5ft away, directly in front of the speaker. Both tests were with each speaker and the mic in the same position:
their graphs are almost identical. This makes me think that you are entirely right about the room being the cause of the difference in the original graphs.
Soooo, I *do* see some significant dips in these charts (the final 2 images), but should I consider these speakers "OK"? If I sell them I want to be able to do so to a buyer in good faith that they are working correctly (as well as they can). Or, if it has problems, at least point them to a possible problem source if they want to give DIY rehab a go.
Thanks for any input. Hope the attachment names aren't too confusing.