Hello I've been using a pair of HD600 headphones for nearly a decade now. I've always just plugged them directly into the computer or iPod, never used an amp before. My HD600 headphones are not sound very good anymore, so I figure it's time to upgrade. I've done some extensive research and have just purchased a pair of HD800 Sennheiser headphones. Next up was to pick the correct DAC and AMP to go along with them. After some extensive research on these forums, I settled on the Isabellina HPA. (I have not purchased it yet) This particular amp has an option for a 4-pin XLR balanced output. From my research on balanced vs single ended (new to me), it certainly looks like I want to go for the balanced connection. So now I am in the market for a cable for my HD800's that are compatible (my headphones support a 'balanced' cable right?) It looks like both the Black Dragon and Silver Dragon cables from Moon Audio have a termination option of 'Neutrik single 4 pin Male Gold XLR' which seems to match the description of the Isabellina HPA 'Neutrik 4-pin XLR output jack' I am new to amps and balanced XLR, so is this correct? Would that cable and that DAC/AMP work well with my new HD800 headphones? Which cable should I get? Silver? Black? A different cable vendor entirely? (I prefer to spend less than $500 on a headphone cable) I mostly listen to classical music, although I also have some folk and some classic 8-bit video game soundtracks. Any help would be greatly appreciated! Thank you.