I will say that adding the factory i/0 transformers for true balanced sound made a significant change in soundstage.
Sorry for the thread drift but transformers allow for XLR's but do not provide true balanced circuitry.
Any Nagra Classic Amp or Classic Preamp owners out there willing to share their feedback
Looking to upgrade to Nagra Classic Amp x 2 and Classic Pre-amp from Audio Research REF160S and REF6SE. Current speakers are Wilson Alexia. Current DAC Nagra Tube Dac. Purchased a Nagra Tube Dac with Power Supply in December and WOW what a fantastic product. I like it so much I am considering the switch mentioned above. Would love to hear any feedback.