With a speaker change pending, I may consider doing the same with the amp. I may then send the amp in for a tune-up beforehand.
Is there something I could ask Doug Dale at Coda to do to limit the output voltage of the balanced outputs. Knowing what you have explained to me so far, yes, I can just turn down the volume on the DAC, but what of any prospective purchasers? I wouldn't want to have to go to the trouble of having to explain all this, especially when I don't understand it all that well myself.
Why do you think this voltage is so high here? What would be the intended equipment to run balanced at this voltage?