Hello M21asph/Jeff,
Thanks for your question! ...
The HeadRoom Balanced Desktop unit can only be outfitted with Home DAC / Home module. The much larger Max module/Max DAC boards simply will not fit the small Bal.Desktop chassis due to heat & size constraints.
We only carry the Cardas Audio balanced-XLR headphone cabling here at HeadRoom but certainly each type/brand of aftermarket headphone cord will offer its own particular tonality and timbre -- which headphone cable replacement is ultimately the "best" may be completely up to the ear of the beholder!
Typically the HeadRoom "package combos" systems have already been sizeably discounted & therefore are not eligible for further price breaks -- but give us a ring and we'll be happy to see what we can do for ya!
Cheers,
Jorge
HR Sales/Product Manager