Originally Posted by Chuck666
Second try at 8:30 clock, +2.5db. OK for now, on Auto pwr. Now, I corrected spk to ALL SMALL and set xover to 80? Believe that is the method?
Now, I have an SPL meter. I believe all readings should be similar when I check them? I did this earlier before you answered, and know some were not close? How close should one expect? And, if adjusting, change the "level"?
SORRY FOR THE 4th Interruption!!!!!
EDIT all spkrs within abt 2.5 db, except SW. 63.5-66 for them. SW AT 40 barely.. I know the level cntl won't do enough; back to sw gain cntl or what? A conundrum? Ideas.
Depending upon your main speakers you can set the bass crossover higher, or lower, than the Dolby recommended default of 80 Hz. It really depends upon the capabilities of your main speakers.
If you're playing with an SPL, you may be over-tweaking to hit some numbers, instead of just getting it sounding "right" to you. Use the test tone (it may be different in "Settings," "Manual," "Levels" than in Settings/Manual/PEQ) and cycle through all the speakers while sitting in your MLP. Do they all sound about the same? If so, fine, don't change them; watch some movies instead, notice if you can hear music, dialog, surround effects clearly. (N.B. Some movies the dialog/center channel can be a bit muted, i find that I have to boost dialog 1 dB in 1 out of 5 movies. Maybe that's why Yamaha includes a "Dialog Adjust" option.
Rather than testing with an SPL, I use frequency sweeps from audiocheck.net
or a test CD like the Boston Acoustic Society sells (a version comes free with Hsu Research subwoofers). With the subwoofer turned off, and base management turned off (all speakers set to "large"), I played descending low frequency sweeps as well as discrete ULF test tones. Now technically
my old Bose 401s can play down to something like 60 hz, due to a tuned bass reflex chamber and tuned port, but they're not reliable. The point where the 401s stop playing ULF tones consistently
-- they kind fade out and in again -- is something like 90 hz. So I have my bass crossover at 110 hz, a good 20 hz before the speakers lose their abilities, and a point where my Hsu VTF2 subwoofer produces tones confidently and clearly.
Only takes a little while and some discerning listening to detect this. Another good test to judge the results? The "Special Edition" of Star Wars (1977) when the Millenium Falcon is being tractored into the Death Star and Han Solo turns off the engines and boasts, "They won't get ME without a fight," and Obi-wan talks sense into him, "There ARE alternatives." Nice, clean, smooth, loooooowwww ULF tones as the engines "spool down." You can hear it smoothly descending all the way to the 30 hz or so bottom. (I hope my memory of this is correct.) If you don't have a copy of the BD or DVD, your local public library surely does.