Haha. Okay the Coca-Cola division within Coca-Cola, suddenly selling extra carbonated Sprite "Sprite x2" instead of Coca-Cola, so they have abandoned the 'Coke idea', which was quite essential to their company and customers, without even explaining why.
It's like Mr. Coke saying "I know I've supported Coke, but Sprite is selling more, so err..., we replaced Coke with Sprite x2, it'll sell for $1000, I hope you enjoy it more than Sprite x1, have a nice day".
The HM-601, HM-602 and HM-801 all used non-oversampling DAC chips, for their sweet / analog / pure / vintage sound whatever you want to call it.
The ES9018 is 64x-128x oversampling.
The only thing NOS and ES9018 have in common is they're both found in the most expensive DAC's in the world.