Join Date: Apr 2005
Location: Castro Valley, CA (San Francisco Bay Area)
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for your reply, Curt. Your few sentences did a better job at explaining these 3 methods of EQing than the manual did. Can't believe I didn't include the volume of my room! 1,800 cu ft.
Yeah, I spent about 6 hours today really going through the manual and EQing, and I did both the auto and manual (incl parametric EQ). I'm very very limited with my sub placement - unless I pull out my stand and free my sub cable, I can't move it at all at this time.
I have 2 nasty valleys at 75 and 122-ish. Couldn't get it tighter than +/- 6 dB (crossover at 80db). I used every single variable available, and always tested the results immediately on the response graph. The best effort +/- 6dB is true for both auto and manual EQ. Guess my next step is to free up my sub cable to see where I could physically possibly position it, and then go from there. I may get better response with the sub at a location that is not my visual preference.
One thing I did first was to upgrade the firmware from 2.0 to 2.2.2. After EQing, my setup and preset 1 volume was 30. Put on a recorded HBO movie, and the sub was making a rumble like something was broken. Never heard that in 3 years. I am positive the sub volume was well matched to the satellite's volume, per the system response graph. Turned it down to about 20 with no real effect w/ the grumbling, and just turned off the sub. Later in the movie, this was seriously bothering me, so I turned the sub back on, and the loud 'grumbling', like wind in a microphone, was gone. Weird. Any such reported problems w/ 2.2.2?
After some objective listening to familiar material, and because for the last several months I felt my sub was too loud, I settled on sub vol 22. Only difference between preset 1 and preset 2 is p1 has a theater/music setting of 8 (max servo gain) for music, and p2 has a setting of 4 (relax the servo a bit for effects). What a great setting this is - love it!
Re: 2 DD12's in my 1,800 cu ft room, I would believe that giving my room proper acoustical treatment would do wonders for my frequency response from 15-200hZ, along with removing the 2 valleys.
Even though step 16 says I would normally not adjust the subsonic filter, I changed mine from 15 to 17 because the Velodyne spec sheet shows the DD12 has a low limit of 17Hz, and changing to 17Hz really helped flatten my low-end response on the graph. I would imagine that, just as I wouldn't want to send signals to my satellites lower than they can accurately reproduce, the same holds true for my sub. Is that true?
Can you point me to a source that documents the changes between 2.0 and 2.2.2? My manual is written for 2.0. I notice the online manual is written for 2.2.0. I'll check it out for differences.