the last mile — sonore opticalRendu

aKnyght said:
hence, the benefit of optical isolation in eliminating all upstream electrical noise from the signal.
Click to expand...
I will give this opticalrendu a try in future. Whatever the background theory about it might be, it must sound great and I already have the perfect powersupply for it. ty for this review.
 
u-sound said:
i thought the more clocks the better
Click to expand...

Well, that can be beneficial if the clocks are of good enough quality.

But, there are clocks that support multiple devices, e.g. this SOtM sCLK-OCX10...

sCLK-OCX10.webp


or the Cybershaft OP20....just as examples.

op20a-3-1200.jpeg


op20a-2-1200.jpeg
 
u-sound said:
sorry, call it noise.
maybe overstrained is the wrong word, however clocks dont like to be shared
Click to expand...

It really depends on the clock. The cheap-*ss clocks in generic, consumer-grade networking or computing devices can add a notable amount of phase noise, and add "blurring" to the clock "edges". The damage to clock edges from phase noise can "stack up" when using a number of el-cheapo, consumer-grade networking devices in the "path" from source to DAC. Imagine a digital signal that that starts out as a nearly perfect square wave that becomes more and more "blurred" as each subsequent el-cheapo devices as some "blur" to the now-imperfect square wave "shape". The damage to the clock edges "cascades" to becoming worse and worse.

This is why quality devices e.g. the OpticalRendu, OpticalModule, UltraRendu, SOtM SMS-200 UltraNeo and USB "re-clockers" can improve the majority of the "damage" done to the clock edges, because they can "re-clock" the the signal to a newer, "cleaner" square wave, with cleaner "edges" than from the crap clocks. But, they're still not absolutely perfect, which is why "stacking" multiple quality devices can help clean up those edges even further. The Rendu series utilize the Crystek CCHD-575 oscillator and the SMS uses the sCLK-EX clock, both of which are quite good oscillators for the money, but IIRC, neither of them are "oven-controlled", and clocks are very sensitive to temperature, so the oven-controlled clocks are even better. And more expensive. The better the quality of the clock, the better the integrity of the clock edges that are preserved.

This is also why the uber-clocks, e.g. the Cybershaft OP-series are so effective, and...so expensive.

Like everything in audio, you get what you pay for.

op20a-3-1200.jpeg
 
I have read this white paper, and while my experience tends to agree with the proposed end result it is important to keep in mind that any "white paper" is a promotional product, not peer-reviewed nor necessarily evidence-based.
 
You must log in or register to reply here.
Back
Top