Originally Posted by chadwick537
If any of the above posters would like to help me setup my dual sub configuration this weekend, any advice would be more than welcomed =)
I have to incorporate:
Onkyo 1010 w/ XT32 and SubEQ
Dual PSA XV15 w/ 0-180 variable phase control
MiniDSP & REW w/ UMIK-1
It's a little daunting to say the least! I'm familiar with the REW basics and the sub distance tweak, but I have no idea if I should use Audyssey first, the MiniDSP first (or if it's even necessary), if I should set the phase for maximum SPL first, etc.
I was just going to do some experimenting and see what works best, but any advice on a general game plan would be most appreciated!
One question I know I do have (and forgive me if this is off topic) but if I set the phase to find the best pre-audyssey response, when Audyssey pings the individual subs to set distance, won't the phase be out of whack at that point and have a different response to EQ? Maybe I'm wrong, still learning!
Obviously from my recent posts, I'm about to try something new, but here's the procedure that's worked for me in the past:
Set the gain on both subs to the same level - around 12:00-2:00 on the gain knob is a good starting point.
1. Connect sub #1
only and place it at the MLP
2. Do the sub crawl to determine the best position for sub #1
3. Place sub #1
in that position
4. Connect both subs and place sub #2
at the MLP (with sub #1
playing as well)
5. Do the sub crawl to determine the best position for sub #2
6. Place sub #2
in that position
7. Adjust phase on one of the subs until you get the maximum SPL at the MLP (could be variable or a simple 0/180 switch)
8. Run Audyssey, first mic position only, and "calculate"
9. Look to see where Audyssey has set your sub trim, you want it to be around -5db ideally
10. Adjust the gain on both subs by the same amount
up or down as needed to achieve #8
11. Repeat 8-10 until you get the sub trim around -5db
12. Run the full Audyssey calibration
13. Bump up the sub trim from 3db to 6db to your preference
You may want to skip the sub phase adjustment steps. I believe XT32 adjusts distance for both subs during calibration, but I could be wrong.
I would use the MiniDSP post-Audyssey. After you get everything calibrated with Audyssey, run some REW sweeps and see if you even need the MiniDSP. If you have some pretty good humps in your response, you can easily bring them down with REW's EQ function and the MiniDSP. If you have any nasty dips in the FR there's not much you can do about those with the MiniDSP.