Take your NC500 or Purifi 1ET400A to MKII Spec
Nord One REV D Buffer Boards details on the Nord One SE NC500 product page. Upgrades ALL NC500 and Purifi 1ET400A based amps to MKII includes 2 Op Amps per board. Takes your amp to MKII Spec. Rev D will also accept previous 8 Pin Sparkos and Sonic Imagery Op Amps. Simple DIY installation,
One board is required for each channel.
Will fit 2016-2021 October built amps. If your amp is newer you may require different buffer board.
Choice of Sparkos Labs SS2590 or Sonic Imagery 990Enh Op Amps +£22.50