Shindo Aurieges channel imbalance
 

Have a slight channel imbalance. I swapped tubes and it followed one of the LCP86 tubes. However, when I turned up the volume it seemed to go away. A bit confused....

Any suggestions?

I have changed the ecf80s on my Aurieges mm a few days ago. The best cheap upgrade ever in my system. I suggest you change the tubes on yours.

I'd suggest getting a replacement for that pair of LCP86 tubes. At lower volumes a moderate channel imbalance can sometimes be more perceptible than at higher volume levels.

Where do you source these tubes?

Shindo uses some unique tubes, so you might be best off contacting a Shindo dealer or the distributor. When I do a search on that specific tube there is some mention of not necessarily having to replace a pair, and that Shindo may recommend just replacing one along with a re-biasing procedure.

I bought the same siemens ecf80 tubes used by shindo on ebay for $20 a pair plus $18 shipping from Italy.

I doubt it is the tubes. The pots are more linear higher up in the range, which explains why it goes away when you increase the volume.