My plans for acquiring a Yggdrasil has fallen through and I've got these original boards. Regarded by some as the best sounding option for the Yggdrasil I will say these are definitely the most compatible with all systems. While A2 leans well into warm territory, LIM has quite a bit of gloss. A1/GS however plays it straight with incredible detail and capability. Price includes boards, bios chip - shipping/pp as well. Easy drop-in flavor for your Yggdrasil.