For sale is an NHT X2 Digital Crossover. Balanced and unbalanced inputs and outputs for satellites and for subs. Please see this link for full information including the owners manual.
I bought this for my two channel system. I was planning on moving to an apartment, and replacing my large floor standers with monitors and a sub, but the move fell through. The unit is in like new condition.
Buyer pays shipping. I will provide you with a total price including shipping.