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In Reply to: RE: The Wyred4sound mod does this... posted by Ivan303 on August 23, 2015 at 20:26:10
This upgrade entirely bypasses the mediocre Cirrius Logic CODAC and the associated high jitter clocks. The mod was designed to integrate the SONOS system into your high end audio system through an external DAC. This new custom board is installed in the SONOS and directly converts the I²S into up-sampled SPDIF.
The notion that upsampling eliminates jitter has now been acknowledged as myth in the industry.... Most manufacturers that have used SRC have since dumped it..... (This is why I haven't discussed the topic with any regularity in recent time.) But I guess a scant number of designers have opted to stick with it.
"So far everyone who has had this modification performed hears and improvement."
The same can be said about the AH Tjoeb Upsampler card..... But it ended up being a "flavor of the month".....
In spite of my opinion, if you do get the product, I hope you get satisfaction long term..... As opposed to yet another "flavor of the month".
Follow Ups:
"The notion that upsampling eliminates jitter has now been acknowledged as myth in the industry."That is NOT at all what they are saying. The low jitter comes from re-clocking with a so-called 'Femto-grade' clock, not by up sampling. In fact you can have this modification done, complete with re-clocking, at any sample rate you wish, 44.1, 48, 88.2, and/or 96kHz.
This mod is basically the same thing as the 'Femto-grade Reclocker' that Wyred4Sound sells as a separate box, the 'Remedy Reclocker', only in the case of the SONOS CONNECT mod they build this in and bypass the existing circuity inside the CONNECT instead of at the output of the CONNECT.
See link below:
Edits: 08/23/15
heh, I had mine done at 96, which is my old mans old schools reference dac limit.
Cheers,
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