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IMAGE PROBLEMS VOCALS OFF CENTER

My image is off center.
I have changed practically everything.
Swapped interconnects, cd players, placed left speaker on the right and right speaker on the left and vice versa. Switched amplifiers, power cables etc etc. The image (noticeable on vocals) is about a foot to the right of center. DRIVING ME INSANE!!!!!!! I have this gear in an architecturally sound room. It was designed by Obsession AUdio in the U.S. and it is definitely not a room issue. It is not my hearing (as first thought) because others have noticed and confirmed the problem as well. HAS ANYONE ENCOUNTERED THIS PROBLEM?
Could it be an electrical issue coming in to the house????? Is that even possible?
Any and all suggestions are welcome.

Randy
butterscotchmusic
gthirteen
355 posts
 
Well, you could try a different preamp, however if you swapped the interconnects at the back of the preamp, it should be reversed. (You might want to verify this before trying to correct it). Unfortunately, the preamp will likely have to be repaired, and the manufacturer is teh best place to start. I remember I had an old C-J preamp that had this problem. At low levels, really low, one channel "ramped up" quicker than the other one.

Anyway glad to hear that you have identified the source of your woes.
jea48
4,486 posts
 
I am now pretty certain that it is indeed a volume issue. Not room related. I started playing with the volume knob and very slowy began to turn it clockwise. The right speakers begins to have sound coming from it before the left channel. I guess that probably means that the right speaker is slightly louder than the left, therefore causing the image to shift sligtly to the right of center.

One more test, cross the ics from the preamp to the power amp.
Right out of the pre to left in on the Amp.
Left out of the pre to right in on the Amp.
Is the off center image shifted to the other side?
Post back.
fiddler
581 posts
 
I had the same problem recently and it was driving me crazy. As it turns out, the problem was the 6SN7 tubes in my preamp. I replaced them and that cured the problem immediately.
seandtaylor99
1,262 posts
 
"I am now pretty certain that it is indeed a volume issue."

You may be correct but your experiment is flawed.

Most volume controls (potentiometers) have poor channel balance at very low volumes, but have a perfectly acceptable channel balance in the normal listening range. Just because channels are out of balance at low volumes does not mean that they will be out of balance at higher volumes.

Did you try any of the other suggestions ?
donbellphd
205 posts
 
Newbee,

Isn't the near-field listening position for speakers 8' OC just under 7', i.e. sqrt of 64-16?

db
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