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In Reply to: RE: Oppo BDP-83 vs Sony DVP-S7000 as CD transport posted by sbrians on September 05, 2014 at 12:49:28
Sony built some very good transports in those days. A lot of attention was paid to the digital output circuitry
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This also tells me that jitter is not the only important aspect of a transport. I suspect that the Oppo has small jitter, but this test suggests to me that it does not transmit all of the bits.
The difference in bass is huge and I don't know why since I would think low frequencies would be easiest for PCM.
Seeing as how both players also play DVD if you want to tighten up bass response & lower jitter even further , you might want to add an Empirical Aundio Synchro Mesh Reclocker to the "mix" between the transport & DAC. (After only spending what you did for the Sony, you are still within your budget)
I did think that that reclocker would create a good old transport with more modern jitter performance, but no budget for that now.
When I got my DAC, my wife asked, "now are you done?". I am mostly done.
There does not seem to be reasonably priced high quality relockers.
The reason behind better spdif lies in the signal's waveform integrity, ground noise, frequency stability, jitter etc. Japanese units of old often include relocking as well as signal conditioning. One thing you can do is to ensure 75R impedance matching by using the correct BNC plugs, sockets and cables. This has a considerable effect on SQ.
Thanks. Interesting. I was just looking at the Monarchy classic DIP for $250, but it sounds like it's possible that could not improve the Sony signal much.
I use a Transparent digital coax now. I would have to add BNCs to use those, but this is unlikely.
I may try the fiber one day to hear the difference. I have a 25 foot glass TOSlink.
I'm in no hurry to change much, given great sound and little budget. But I do hope to one day get a Revelation Audio Labs power umbilical for my Octave since I expect that to be worth then price in sonic improvement. It was for my CI Audio VDA2 DAC and the stock Metrum seems possibly more ripe for improvement.
Currently at ~72 hours warmup, the Sony does not sound as good as at 48 hours. So I expect it to improve tomorrow if it's going to stabilize to a good point.
Well getting back to the wife "Raised Eyebrow" to your Audio purchases; as
Fred Sanford would say to Lamont "You dummy".
You have to get her involved in listening to some music with you (as long as she makes you some nice snacks of course). As a last resort,figure out what bribes(inexpensine so we don't cut into our Audio purchases fund)will
lull her into a less attentive state.
Try lines like "Honey,my shirt was so comfortable today,I could'nt stop myself from working harder".
Good Luck & happy listening !
Back on a serious note:forget what I mentioned about a Reclocker!
My cognitive skils are going down the drain,you did say that your DAC was the Metrum Octave. I've used the Octave & am now using the Metrum Hex,they are absolutely excellent at "jitter rejection"
(Man, I hope these "Emily Litella" episodes I've had lately don't become a recurring thing with me. Sorry)
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