Originally Posted by LastButNotLeast
One box checked, two lines.
Would really like to see:
other sub(s) only
all subs together
One box/two lines: Left and Right Stereo. Remember I'm music only.
I eq'd them to work together, so the measurements of them separate are very heavily non-idealized and not particularly useful. I do not send the same signal to the JBL's vs. the UM18's.
The order I did things:
Ultimax only. Pull down obscene peaks.
JBL only. Pull down obscene peaks.
Both playing: Set distance, mess with timing for best matching
Both playing, eq JBL only (nearfield): Start beefing up extreme bottom end
Whole System: Run DIRAC to suit target curve
Listen to music, see if balance between front and rear subs feels right. Adjust JBL levels to suit (i.e. if too prominent turn them down, drop JBL crossover, or both).
Re-run DIRAC. I was forced into this method because my DIRAC is 2 channel stereo, so that means it will ultimately apply global eq to all subs, depending on how I have them setup (mono would be global, but you could do L&R subs too and target eq them differently if necessary). This will be much easier once I spring for the 8 channel processor.
It's much more of an iterative process the first couple times you mess with these things. Now I could probably re-map things in 1/4 the time but I have a feel for what the JBL's can handle, how to roll them off, eq, etc.
Below is JBL only before eq work, can't remember if this one had any 60hz pulled down or not. I don't usually keep the files since they aren't important to me, and if anything changes I have to start over anyway.