Quote:
Originally Posted by SAM992
Ok then, unless convinced otherwise (and I stirred up the old DG-58 thread incase those guys are still around).. I plan to connect as follows.
DP-560 ---> HS-Link to DG-68 (only for SACD playback with newer Accuphase DAC )
DP-560 ---> coax SPDIF ---> dCS Rossini DAC (all other digital streaming & disc playback)
then.. the chain will be
dCS Rossini (DAC)--->balance XLR --->DG-68---> balance XLR--->C1100 preamp --> MC462 Amp.
I would put the DG-68 between the pre-amp and amp as you initially suggested, but then I'd lose volume control when playing SACD back.
God this is enough to give me a migraine 
Once I get the unit here, I will be doing a bit of messing around for sure it appears. |
DP-560 supports both HS-Link Ver.1 and HS-Link Ver.2.
DG-68 supports both HS-Link Ver.1 and HS-Link Ver.2.
The difference between the two HS-Link versions is, that with Ver.1 the clock is embedded in the signal, whereas with Ver.2 the clock is separate from the signal. The HS-Link cable is the same.
(DG-58 only supports HS-Link Ver.1.)
(BTW I use Audioquest RJ/E Diamond as HS-Link cable. I Think Masterlu does the same.)
Since you cannot calculate filters or anything else on a native SACD (DSD) signal, the DG-68 seems to downsample DSD to 352.8kHz (DXD) and then seems to calculate the filters with 352.8kHz (DXD).
I write "seems", because Accuphase does not specify this for the DG-68.
(In the DG-58, which provides only HS-Link Ver.1, DSD is downsampled to 176.4kHz.)
A 352.8kHz (DXD) signal is only available on HS-Link Ver.2, not on the coax outputs.
(The 176.4kHz signal from a DG-58 however is available at its coax outputs.)
Wiring options:
1) digital SACD/CD
For SACD: DP-560 -
HS-Link - DG-68 -
XLR analog - C1100 (DG-68 DAC is similar to DP-750 DAC and is better than DP-560 DAC)
For CD: DP-560 -
HS-Link - DG-68 -
75Ω coax - Rossini - XLR analog - C1100
This version requires 1
HS-Link, 1
75Ω coax and 2 pairs of XLR analog
2) additional digital sources
For additional sources (e.g. TV (PCM), T-1200, BluRay/DVD): Source -
75Ω coax or Toslink - DG-68 -
75Ω coax - Rossini - XLR analog - C1100
Only two additional sources possible with DG-68, one
75Ω coax and one
Toslink.
Additional sources require 1 additional
75Ω coax and/or 1
Toslink.
(BTW my system is much more complex. I could use my DC-901 as a digital input switch, from where the signal chosen was sent via HS-Link to my DG-58 and back to the DAC. Unfortunately this ExtDSP function of the DC-901 is not available anymore on the DC-950, so I would have to do the switching in a different way. Result: I bought a Vivaldi DAC and a larger Z-Systems Digital Detangler. The latter not manufactured any more but some versions occasionally available on ebay; check configurations. And I also bought a Trinnov ST-2 Pro instead of changing to DG-68.)
3) digital streaming
Not possible with Rossini, since there are no digital outputs.
Streaming would be possible with separate dCS Network Bridge: Network Bridge -
75Ω coax - DG-68 -
75Ω coax - Rossini -
XLR analog - C1100
4) analog (recommended by Accuphase)
For all analog sources connected to preamp: C1100 -
XLR analog - DG-68 (choose 352.8kHz) -
XLR analog - MC462
Volume control is done by C1100.
More migraine or less?
Bottom line: I'd suggest the following connections:
1) DP-560 -
HS-Link - DG-68
2) DG-68 -
XLR analog - C1100 (for SACD)
3) DG-68 -
75Ω coax - Rossini -
XLR analog - C1100 (for CD)
4) Rossini -
RCA analog - DG-68 -
plus connection 2 (for streaming)
Requires 1
HS-Link, 1
75Ω coax, 2
XLR analog, 1
RCA analog
a) for SACD: on DG-68 select
HS-Link input; on C1100 select first balanced input
b) for CD: on DG-68 select
HS-Link input; on Rossini select first
SPDIF input and choose upsampling to DXD or DSD; on C1100 select second balanced input
c) for streaming: on DG-68 select
RCA analog input and choose 352.8kHz( DXD); on C1100 select first balanced input
This way you can use the Rossini DAC for CD and the DG-68 DAC for SACD and streaming via Rossini with room correction for all sources.
(For streaming c) is the only possible solution. For SACD however it might be possible to use the Rossini DAC, if you manage to run the DG-68 in HS-Link Ver.1 mode, i.e downsampling DSD to 176.4kHz.)
Hope I could help.
Martin