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In Reply to: RE: Beaming/shouting posted by protos on April 30, 2009 at 03:07:46
What you are planning to do is exactly what I used for several months very successfully. I used a combination of PEQ and GEQ, you should indeed get more accurate results with the PEQ but use what works for you. Assuming you have a room with room modes to tame (ie it's not HUGE)then it's a significant improvement to the bass performance of your room/system but the degree does of course depend on how your room measures in the first place.
Take some measurements first to find out how the room performs. In my room I used 3 position measurements to begin with but when doing the fine-tuning I used single position measurement, it's much faster and in my situation there was little difference between 1 and 3 position.
With the room analyzer and DEQ2496 it took me 2 to 3 hours to get a good result once I had opimized subwoofer placement - which ended up being exactly when I had them in the first place! With the XTZ Sub Amp 1 I got a flatter response due to the room analyzer programming the dsp for me but you will get a good setup with the DEQ2496 too.
Drat!
After further investigation I have come back full circle to the widebanders.Putting pink noise around 800hz and moving very close behind the widebanders the ringing is very pronounced so no way it is a room node or resonance somewhere else in the room.The effect is more pronounced behind the speakers than in the front.If you stand back a bit or even from the listening position this peaking or ringing has a "phasey " quality so you cannot really tell from where in the room it is coming from.
So perhaps Robert is right and the speaker has changed characteristics and the damping process has "worn out" and the speaker is resonating .
Robert, what are the problem frequencies that you cure with the damping process?
I guess I will have to get some new widebanders and keep my fingers crossed that that will be the end of it.
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