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In Reply to: Edgarhorns imaging a little off--I think?? posted by audiophilewannabe on March 11, 2007 at 14:41:04:
First of all, are the speakers situated equally away the side wall? and are both speakers has the same distance from the center of the speaker to where you sit(you should be sitting app. 5' between the speakers and app. 10' to either speaker)?Second, are you doing this test with a CD player or turntable? CD won't lie, image(and most vocal) should be dead center. Turntable on the other hand could shift the image to either side depending on the adjustment of your turntable, tonearm and cartridge.
Hope this helps,
Follow Ups:
the same results. There is no wall on the side of the left speaker. I'm not sure if that is the cause of the problem--I guess it's possible. The imaging shifting more on one side is very prominent that I personally think it's electronic, wiring or something on the hardware-Not the room accoustics.
If you have no wall on one side I'm betting that is at least a large part of the problem. It sounds like my listening room is similar to yours. What I've done to balance things out is to take an approach to make it seem like there is also no wall on the right side as well. I've applied some effective absorption panels along the first reflection point, and extended a little further for good measure. I suspect you'll have the same problem, to varying degrees, regardless of speakers in your room configuration if you don't address that one wall. Or, you could pull the left speaker closer to your listening position until things start to sound balanced.
It is the room I used to have an open hallway with same effect, the balance knob used to work untill I went passive, so no balance, then I redid the whole room and added a wall in that spot, guess what: problem gone....
Giving more toe in should work, I remember I even had one speaker closer to me than the other and that worked fine also.
to do list. Here's a link to a pic. The left side is open--Further down moving forward I have my vinyl colletion--creating a wall. That BTW is the very first pic.
http://gallery.audioasylum.com/cgi/view.mpl?UserImages=28352
I'd get hits when I googled Edgarhorns.These non-rectangular rooms have many extra issues to deal with but they can work very well. I'll offer my experience and hope that it gives you some ideas. From the looks of it we have very similar floor plans for the front end of our listening rooms. The back wall in your room is very different and I'm going to guess that it is adding to your woes.
The optimum speaker placement for me has always been 1/3 into the room from the wall behind the speakers. I try to keep the drivers no closer than 2' from the side walls. This puts the left speaker almost exactly in line with the corner that opens into the other room on the left side. I noticed your placement has the speakers even further into the room. I know this may not help you much since you have quite a bit more gear to fit in than I do.
I really believe that you would benefit from some absorption treatment on the right wall. The back wall is going to be more of a challenge. If you look at where the opening is going past your record shelves you'll realize that it also on the left side. So you loose even more reflections from that side. I don't know why this causes the imbalance to be on the left side, but perhaps some of the guys over in the Rives forum can explain that one. You may have better results if you move the record shelves and just let the back of the room open all the way across. You'll still have that one corner in the back but some type of fabric draped on the door should help with that.
I use Bruce's round horns. I have the same issue, in mirror of your problem - open doorway to the dining room on the RIGHT side.I simply use the balance control; room treatments are a non-starter in the living room. I purposely ordered dual mono controls for my pre-amp project.
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