AV-Receiver possible channel imbalance?

Joined
27 Jul 2005
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13,122
Location
The Orion Spur
Hi there,

I have a Yamaha rx-v685 AV-Receiver, I use it in 'pure direct' stereo mode for a good 50% of the time, I've had this amp for about a year, I've always noticed that the centre imagine in recordings is between the centre and right speaker, it's never in the centre, it always comes from the right side more.

When I got my new speakers (B&W 606s) setup correctly and toed in a little I noticed it even more, I kind of passed it off as maybe hearing damage, or potentially room acoustics, the imbalance in the sound started to bug me more and more so I decided to swap the speaker cables around, and low and behold the centre imagine (the voice) was now between the centre and left speaker.

I then brought in my Denon stereo amp from my office and plugged that into the front L&R pre-outs of the AV-Receiver and again the same problem, I tried switching the L&R RCA around and again the voice in the track switched sides, so then I thought maybe it's Spotify rather than the amp, so I used to 3.5mm jack to RCA and plugged my phone into the AV-Receiver and ran the same track using Spotify on my phone, again same problem, and then finally I plugged my phone into my Denon amp, perfect centre image, the sound was immediately more balanced coming from both speakers much more equally.

The thing is though I don't believe that this is a channel imbalance in terms of dB imbalance, it seems to be that higher frequencies can be heard slightly louder on the right channel of the AV-Receiver, I have tried turning the volume up very slowly from mute and I'm pretty sure that I can hear the music kicking in on both speakers at the same time so this is very strange to me.

So what do you guys think?, I'm maybe being a bit fussy but it really is ruining my enjoyment of stereo music which I listen to quite a lot.
 
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