Qs on dCS Rossini Transport

dCS Products
1

Hi,

I have few qs on Rossini Transport -

  1. Does it play data CDs (like flac, mp3 burnt into a disc) ?
  2. How is the reliability of the disc mechanism ?
  3. In case the disc mechanism fails, for how long dCS will replace the same ?

Regards,
Sourav

2

Hi Sourav,

Thanks for your questions … please let me give you some answers.

  1. No … it does not read data discs.

  2. We do not use consumer grade disc transports so reliability tends to be very good.

  3. For as long as we can get the required parts to enable servicing on units that are no longer in production - for Rossini all parts are available (as obviously it is a unit that is still in production) so there are no issues with parts or servicing at this time.

Best Regards

Phil Harris

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3

Hi Phil,

Thanks for your inputs.

I have another Qs, if I am using Rossini Transport with Rossini DAC and if I do not have Rosinni clock can I use Rossini Transport’s clock as master clock ?

Regards,
Sourav

4

Hi Sourav,

You’d use the Rossini DAC’s Wordclock output as a master wordclock for the Rossini Transport…

Take a look at page 12 of the Rossini Transport manual here for details…

Best Regards

Phil

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5

Thanks Phil.

Regards,
Sourav

6

@Phil another Qs is how the upsampling is handled between Rossini Transport and Rossini Dac.

I understand Rossini transport supports DSD, DS2 and DSX conversion of PCM data in AES1+2 input. Say I set it to DSX.
In Rossini Dac one cannot disable upsampling . So, say, I have set it to DSX. In that case will Rossini Dac again do the conversion ? Or will it just pass through ?

In other situation, say I just send PCM data through the spdif (16/44.1). In that case will ROssini dac anyway upsample the same in DSX ?

I personally dont like this kind of upsampling. So want to avoid wherever possible (I just ordered Rossini transport and Rossini Dac yesterday).

Regards,
Sourav

7

I think you meant DXD :wink:

To your questions; Pass-through w.r.t your first question (DXD source streamed into the DAC over AES1+2), and Upsampled in DAC when sources are redbook on SPDIF.

dCS specialises in upsampling (and analog conversion of course), so, don’t knock it till you’ve tried it :grin:

8

Yes u r right. I meant DXD. Sorry about creating the confusion.

Now on the 2nd qs - any idea what is the reason for mandatory upsampling for Rossini (where as for Vivaldi one has option to avoid that) as anyway at the ring Dac’s interface level the data would be anyway converted to 706.8 kHz or 768 kHz.

Regards,
Sourav

9

I presume it’s just an architectural choice. The flexibility afforded by the Vivaldi Upsampler of course comes at a cost.

By the way, I do recommend reading the Technical series that James posted - there’s a lot more going on (w.r.t your “706.8KHz” comment);

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