Disclaimer: my testing involved both unbalanced and balanced connections to an Aune X7S, however my results only include unbalanced. Running the Jubilee balanced did nothing to the sound (as far as I could tell), but did affect the HD6XX.
If you have any questions, please leave them in the comments section. Thanks for watching.
---- Recommended Products: ----
** Sennheiser HD600 **
-Amazon: https://amzn.to/2W8K2WH
** Hifiman HE-4XX **
-Massdrop: https://www.massdrop.com/buy/massdrop-x-hifiman-he4xx-planar-magnetic-headphones
** Audeze LCD-2C **
-Amazon: https://amzn.to/2RI657Q
** Sennheiser HD650/6XX **
-650 through Amazon: https://amzn.to/2REy74d
-6XX through Massdrop: https://www.massdrop.com/buy/massdrop-sennheiser-hd6xx
** Sennheiser HD58X Jubilee **
-Massdrop: https://www.massdrop.com/buy/massdrop-x-sennheiser-hd-58x-jubilee-headphones
** Koss Porta Pro **
-w/mic through Amazon: https://amzn.to/2AW9eXf
-X through Massdrop: https://www.massdrop.com/buy/massdrop-x-koss-porta-pro-x-headphones
** Koss KPH-30i **
-Amazon: https://amzn.to/2AW9hlT
** AKG K7XX **
-Massdrop: https://www.massdrop.com/buy/akg-k7xx-massdrop-first-edition-headphones
