Well the Wadia was pretty good with other recordings.
Anyhow, you may not be right on these chips. The first three Wadia 16 reviews I turned up say 'Super'. 'Simply the best'. 'One of the best CD players ever made. Hmmm
Choice of chips can be personal and a company like Wadia ought to be able to be trusted not to use turkeys. How come their engineers and listening staff couldn't hear the problem and you can? Digital audio using solid state components will always be an issue.
All transistors were hard and grainy from the very get go and many still are. It's not so easy replicating an analogue experience with a stepped digital representation and a jittery clock interface.
DACS are the main issue with digital sound and in my view the problem may never be solved. I'm not sure I've EVER heard a good digital recording of massed strings - these are really prone to hardness and especially grain. Many LPs have much more concert realism on this.
One could say that using digital storage to listen to analogue sound is like starting with an apple, changing it into an orange and then changing it back to an apple again so we can eat it. Obviously the repeated conversions are likely to change the character of the apple and it may not be so good to eat. In my experience fiddling with stuff rarely improves it.
On 'one duff disc' of course I hear what you say but if you pay a premium price for a bad recording/production/disc from what should be a reputable company, it kinda puts you off buying more. They don't tax returns - indeed I bought it in the US at a show and live in UK. It is important such companies as Chesky run very tight quality control for their own good as well as that of their customers.