Well, so far I haven’t really sat down and enjoyed the sub like I said I would (probably doesn’t come as a great surprise to many). Last night I upped the gain on both subs and reran Audyssey … yet again. Where I was getting a sub trim level of -2.5 (on each sub), I’m now at a trim level setting of -6 (on each sub). Big difference? Except for perhaps a 1 to 1.5 dB output gain from the original setting (the tolerance of my SPL meter C-weighting), the answer is no. There was a consistent 1/2 dB (inaudible) output gain of the S3000i over the XS30 at the -6 setting and the -3 and 0 modified trim levels I tried. The XS30 is placed 6 inches farther from my seating position (measured from the center of the subs to my listening position) than the S3000i and might account for some of that very minor variance. When running both subs together, I was again reading 1 to 1.5 dB output gain, which again, is the tolerance limit of my SPL meter (from 30 Hz to 8 kHz). But all readings were consistent over at least a dozen tests. I was also listening at a -12 dB reading on the Denon, which is a bit higher than I normally run it, especially on Interstellar. The peak dB reading I received that evening on the first scene of Interstellar was 103.2 dB with both subs running, and this is louder than I normally run any movie. BTW, I’m getting pretty tired of listening to and watching that scene
So far, I’ve found the difference between the XS30 and the S3000i to be negligible on movies at best. The biggest, and most audibly apparent difference is with various music that I enjoy. Now, that doesn’t mean the S3000i wouldn’t best the XS30 audibly, if I chose to run movies at or above reference levels. I would fully expect the S3000i to be less susceptible to compression and distortion at reference levels and beyond. That alone, could be one reason (of many) that other members have had significantly different results. But since I have no desire go there, I will never know
. Especially since the tactile feel is very intense from each sub below reference. And yes, I noticed some flickering of the CFL lighting in the room on a few occasions, since my first setup fiasco.
I want to thank all that have given me input. It’s much appreciated. I will, of course, continue testing different movies and testing different crossover points and gain trim levels. I will also try different phase settings to see if I am getting any cancellation effects. I did this with the originally setting, turning the phase knob from 0, to 9, to 12, to 3 and to max, to no real audible effect. I did change the crossover to 90 Hz and found some minor localization. This was mitigated to a certain degree when using both subs. I left the LPF setting at 100 Hz. But I think most here will realize that in my room, at the SPL levels I listen at, I won’t ever be seeing/hearing/feeling much difference between these two subs, other than on music. And I gotta say, the more tests I run, the more impressed I am with the original XS30’s movie capability.