Yamaha CDX-920 question

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Hello Guys,

I've got my hands on one of these players, I'm satisfied with its sound (not as good as my tweaked PD-8500, but not bat at all).
Since I know that it runs a pair of PCM58 and a 1bit delta sigma DAC + 8x oversampling filter, I'm really wondering what is the purpose of the button "High Bit Direct Out" on the front?
I have 2 suggestions, but no equipment/knowledge to find which one is correct:
1. It could bypass the Digitall Filter
2. It could enable/disable the 1bit delat Sigma and output from PCM58 directly (but that is hard to believe)

The change in sound is really minor, when "High Bit Direct Out" is on, I find the player a little bit more harsh than I would want it to be, so just turn it off and its all set.

Anyone has some thoughts about my wondering?
Thank You in advance!

Cheers
S
 
siv_BG said:
It appears that the switch can bypass the digitall Filter and the ProBit active filter (no idea how is that working indeed) and the digital signal will be fed to a LP filter and then through the DACs.

So in other words, its a NOS/ 8xOS switch. Nice!

Sorry to be a party breaker, but that switch simply bypass ANALOG low pass filter, not digital filter.
 
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