Originally Posted by SeekingNirvana
I started a thread over in the DIY area, but I thought I would post here as well since my thread isn't getting much traffic.
I have recently finished building 2 sealed LMS Ultra subs, each to be powered by a QSC rmx 4050hd (4k watts per sub), and I'm getting ready to EQ them.
I'm curious if anyone here is using XT32 in conjunction with a Mini-DSP? And if so what is the preferred method for using the two together.
My thought is to let audyssey do it's thing, then add any filters to the Mini after? My understanding is that if you add any kind of EQ pre audyssey, it will try to correct what you have already done. Audyssey will not know that the shelf filter I added is caused by my room, or if I added it on purpose, so it will try to get it flat.
I plan to place my subs, start audyssey, adjust gains on my amps until I meet reference, then set audyssey loose. After audyssey I will probably add. HPF at like 15hz, until I get a chance to use REW to measure what is going on in my room.
Will this work for a quick set up? I'm having a BBQ this weekend and I want to show off a little. I know I can get more of of my system later when I sit down to do measurements and apply a LT.
So if anyone is using XT32 with a mini I would like to hear how you are doing it, and a step by step would be sweet
I'm a noob to the EQ stuff so any help would be appreciated.
Nope, you pretty much got it. Below is my standard procedure for dual subs with Audyssey.
As far as EQ with the MiniDSP, are you aware that REW will generate filters for your MiniDSP based on your measured response? Play around with the EQ panel, it's pretty cool. If you need more instruction, just let us know.
I prefer to EQ post-Audyssey myself as well.
Set the gain on both subs to the same level - around 12:00-2:00 on the gain knob is a good starting point (just a starting point, gain structure can vary greatly from one manufacturer to another). Set phase to "0" on both subs for now.
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. Playing the AVRs test tone, 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 to -8db ideally
10. Adjust the gain on both subs by the same amount
up or down as needed
11. Repeat 8-10 until you get the sub trim around -5db to -8db
12. Run the full Audyssey calibration
13. Bump up the sub trim by 3db to 6db to your preference
Hope this helps!