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Which good discrete R2R multibit DAC & why NOS ?

In another thread concerning upsampling and upconversion in servers, mention was made by georgehifi :
¨Should just have a good listen to Redbook 16/44 PCM converted through a "good" discrete R2R Multibit nos dac.¨
Which would these be and why NOS ? Are there no R2R multibit DACs being made today ?
My Reimyo CDP777 although quite old has the K2 conversion and being one-box and top-loading made sense  to me at the time of purchase.
Most importantly, would adding an external R2R bring a noticible improvement or just be sidestepping ?

Thanks in advance

rost

Showing 1 response by lalitk

lalitk's avatar
lalitk
5,104 posts
 
@rost,

You are probably one of the very few luckiest owner of this amazing player. IMHO, with CDP-777 there is no need to search for a R2R external DAC, your player is already outfitted with a SOTA converter.

You will pay through the nose to hear uptick in performance, if any for CD playback. Just to clarify further, the thread concerning upsampling and upconversion in servers, R2R NOS DAC’s mentioned by @georgehifi was said in context with digital streaming. Unless you have plans to dive into digital streaming, buying an external DAC with CDP-777 makes no sense.
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