How to bi-wire a nad amp help needed please

I've never had the 'NADs to biwire.........

Biwiring is no problem. It really can't hurt the amp in anyway. The amp doesn't see a different load when you biwire. You can buy a set of biwire cables. They have one positive negative connection on the amp end and two positive negative connections on the speaker end. You can also use two complete sets of cables and run both back to the same positive/negative terminals of the amplifier. Depends on what your cable situation is.