I assume you have the 10kOhm S&B (BTW, excellent devices!). I imagine the first thing you can do is try out the new config with good quality enameled copper wire (magnet wire, used for voice coils, transformers, etc) that you can probably get for free or next to free fm a local electronics shop. ~18g should do. See if your dac can drive the new load adequately in rca connection without noise (you never know).
If not, adding a converter tranny to the amps input is no big deal -- but you have to purchase the trannies:(
If not, adding a converter tranny to the amps input is no big deal -- but you have to purchase the trannies:(