Originally Posted by AustinJerry
1) My advice would always be to avoid spots in the predicted response where Dirac is applying its maximum 10dB boost. Run the Dirac measurements and then examine the Avg After curve to see where it fails to match the target, and by how much the predicted curve is lower than the target. If there are problem areas, I would recommend lowering the target to fix the problems, which of course requires a higher master volume setting. I would rather raise the MV than have the over-boosted spots in the predicted response curve. Also remember that if the over-boosted spots are below the crossover point (for the mains), simply raise the curtain and don’t apply correction where over-boosting would be required.
2) I developed my target curve following guidelines from Olive’s white paper, which is linked in my guide. It is quite similar to what is called the “Room Feel” curve that many others use.
3) I have no guidance regarding whether to use the “None” or the “Subwoofer” setting when creating PEQ for your subs. Go with the approach that provides the smoothest response to present to Dirac.
4) I would be reluctant to tweak individual speaker targets after the Dirac calibration. I apply the same target curve to all speakers, with the only post-calibration tweak being to adjust the low-end curtain for the smaller surround speakers.
Got it thank's
Sorry one more question,
I have been using the MiniDsp for a while now, but I have been level matching the subs (2 x Sb2000) all this time, in reading your article on gain matching sounds like so much more sense. In my head before I thought level matching would be better as one sub may have a higher spl in one region to the other due to location. But in essence, you want them both to output identical SPL using gain matching regardless of the position of the sub.
But this still has to be verified by the MLP position.
Not that I want to cheat, but let's say I put both subs at the exact 12 o clock position, which may be higher than needed, but will be both at the same level, and use the MiniDsp Input volume to lower the SPL that's needed, would that work. Since both subs are identical
Or would I need to fine tune with the MiniDsp on the SPL output for each sub to gain match more precisely.
The reason I like the idea of using the MinDsp for volume is that if I ever manage to accidentally touch the volume on the sub, getting at 12 o clock would be easier to achieve. I know I can only really turn the volume down on the MinDsp and not up to avoid clipping
I'm waiting on the AVR and in the meantime, I want to fine-tune my subs, I realised on REW that my left sub had a higher SPL on Level-matching which must have been the case for a while now, I level matched them again and the dual response is a lot different with the seond sub producing a lot more SPL 90hz on.