2. digital
  3. 181525-527

Oppo 105 favoring one channel

Hi everyone! My Oppo 105 seems to be favoring the right channel slightly over the left. Now, before you ask any questions, here’s the system and the troubleshooting I’ve done:

System:

Sources: Oppo 105 (digital); Hagerman Trumpet MC phono stage

DAC: Schiit Gungnir

Amp: Schiit Ragnarok 2/Yamaha 801

Speakers: Reference 3A MM Gen 2

Cables: Acoustic Zen and Belden ICs/ Nordost White Lightning speaker

Troubleshooting:

  1. Swapped speaker cables - no difference (i.e., right side still favored)
  2. Swapped speakers - no difference
  3. Swapped inputs on the amp - no difference
  4. Swapped amps - no difference
  5. Run IC’s straight from the Oppo to amp, bypassing the external DAC - no difference
  6. Tried both balanced and unbalanced outputs from the Oppo - no difference
  7. Listened to both CD and Tidal playback - no difference
  8. Yet when I play from my phono stage, the sound is even and instrument placing is where it should be, even when using the IC’s I had used with the Oppo
  9. One thing i haven’t done yet is try a different digital source - mainly because I don’t have one.

Is this a thing? I would chalk it up to speakers or, more likely my room acoustics except for the perfectly balanced soundstage generated by the analog components. Thoughts?

 

128x128simao
designsfx
793 posts
 

@simao 

Wondering if you’ve tried to reset the channel output assignments from the app or via remote? I believe you can adjust balance and frequency (large/small spkrs) from there- maybe something to try and it might assist in determining just how far out of adjustment it is. It would help if you could playback a test tone and measure the difference between the two.

I have a 105 D and it seems that Oppo’s first recommendation was to reinstall the latest firmware. I’m not certain of what the last firmware update was but I believe you can find it AVS forum under Blu-ray player threads. Hope this works out!

erik_squires
16,060 posts
 

So wait, have you crossed the L and R?  Does the L now sound too low?

simao's avatar
simao OP
1,819 posts
 

Hey Erik. Yes, I tried crossing the speaker cables and the sound migrated accordingly to the left

erik_squires
16,060 posts
 

That's the speakers... the output of the Oppo though?

 

simao's avatar
simao OP
1,819 posts
 

Yes, switched those cables, too. Still the same result. I also swapped R and L speakers and the sound stayed on the right. Again, this phenomenon is NOT present when I'm running analog. 

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