Exicon MOSFETs used in Hafler DH500 Restoration

datsunzgarage.com has a detailed account of the restoration of a dusty old DH500 amplifier using Exicon MOSFETs.

A pair of EC10N20 and EC10P20 were used to replace the original MOSFETs, and their sound was described as “very detailed and clean, and the overall sound was dynamic and 3D, with monstrous bass impact. I was happy.”

You can read the article here.