Ok, I dragged out my old ADC eq / octave spectrum analyzer, and took a look at my B5 3rd season DVD #3: First I looked at the levels in the intro (what comes up initially when you pop in the DVD), because it sounded like there was a little low stuff there, in some of the music. The results, from the output of my preamp, with everything set flat*, are on my website at:
http://praudio.com/site/wp-content/uplo ... init-a.jpg
and, I'll attempt to post it here (have never tried this before)...
Then I took a look at the "Beseiged" segment (the battle for the station):
http://praudio.com/site/wp-content/uplo ... ged-a1.jpg
Woohoo...! I can't believe I got that (posting the images here) to work. Only took 2 tries!)
Every tiny defect in the analyzer's display, that's barely visible in normal lighting, shows up, too. Ah, well.
At any rate, the low end is really losing it. The opening audio isn't too bad: Straight out of my Yamaha preamp, the 25 Hz level is down about 10 dB* from the 160 Hz (upper bass) level. But in the battle scene, the 25 Hz (band) level is down 18 dB!!! That's a LOT. That 18 dB drop means the power in the octave around 25 Hz is about 1.6% of the power in the octave around 160 Hz. No
wonder my woofers weren't kicking around much!
*Note that about 1-1.5 dB of that 25 Hz loss is in the preamp itself. (Maybe some capacitors in it are getting old?) However, the comparison between the various pieces of audio still holds, as that minor loss applies equally to all of the pieces of source material.
And speaking of comparisons, this is what I got, playing through the end of the 1812 Overture (Telarc CD), which includes the cannon shots, of course:
http://praudio.com/site/wp-content/uplo ... larc-a.jpg

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Quite a difference!
The last image isn't quite as good, as daylight had passed and the camera can't seem to get as good an image with just the room lights going -- the lighted segments and such sort of wipe out the CCD a bit. I'll try to get a better pic tomorrow. I'll also post responses off other source material soon. Those will be added to this page:
http://praudio.com/site/b5-3rd-season-a ... alysis-p1/
Now, the real question is: How much can my DBX subharmonic synthesizer, and perhaps some added eq. and dynamic processing, help things out?

Paul R.