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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: RE: USB Dac posted by hortense1948 on November 16, 2015 at 05:26:29:
You have quite a few choices to make there.I'll start with the question about upsampling to DSD via the replay software. I cannot comment myself as if I wanted to do such a thing I have a Paganini upsampler. However there are many satisfied users and I suggest that you look at some archived threads on the AA computer audio forum. Just about all of those with "upsample" and "DSD" in the subject line are talking about upsamplimg within the computer.
Comparing in computer DSD conversion with that via a dCS box is a bit of a moving target. This is because in issues of DCS equipment later than yours DSD upsampling is enabled both in the transports and in the dedicated upsampling units. However the result from the dedicated unit is vastly superior (I've got both so I can listen!). Your existing problem with the 1394 interface in the Purcell/Delius is not unknown and fixes such as a replacement 1394 board are, I understand from someone with a similar problem earlier this year, no longer supported by dCS. I am not too happy about that situation given the price category of dCS gear. But, on the other hand, they will give a handsome trade in price against new equipment, as you are aware. So, if you want DSD you are going to need to change the equipment.
You may gather from my second paragraph that I do not upsample redbook to DSD. The reason for this is that , given the final firmware upgrade for the Paganini or Scarlatti, you can now use an asymmetric filter (otherwise called an "apodising" filter) with 16/44.1 sources and this is, IMO, preferable to upsampling.
That last comment leads me to suggest that you seek out a used Paganini DAC with that late firmware fitted plus a used Paganini Clock 2. This should just about fit within the top end of your budget* and be easily obtainable at the moment given users upgrading to Rossinis. Don't just look at the usual used hifi resources but also try dCS dealers who may well have trade-ins. That choice would mean :
1. You can upsample to DSD in the computer and use the DoP ability of the dCS to play it.
2. You can try the asymmetrical filter with redbook.
3. You will get a large (and I mean large) improvement in audio quality over your Purcell/Delius.
4. You will have a USB input that can handle all input rates up to 24/192 plus DSD.The downside is that you couldn't do this via the dCS upgrade scheme which would only apply in respect of purchasing the Rossini or Vivaldi. NB: the Rossini has fixed upsampling so you cannot use the asymmetric filter (which it is not equipped with anyway). You can switch upsampling from DSD to DXD however. Nevertheless a Rossini without clock is way over your budget and , in any case, it really needs the external clock to give of its best I understand (I have only heard it without a clock or with a Paganini one).
As for the USB S/Pdif converter there is much to read either on AA or elsewhere on this and it will not take you long to find lots of shoot outs between models over the past few years. They are supposed to be bit perfect but nonetheless some users express preferences.However your problematic 1394 interface now probably rules this route out anyway.
*Oops, hopefully ;You are talking $ I was thinking GBP. Then again you don't have our level of sales tax (VAT) which may help you.
I hope all of this helps. Let us know how you get on.
Edits: 11/16/15
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