#131
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Quote:
I have used GPS clock to provide long term reference but had no benefit. |
#132
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Has anyone tried to use different clock frequencies?
It is mentioned in dCS manual that we can use the multiples of 44.1 and 48 Hz to lock on other equipment. What effect does it have on the sound? |
#133
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Hi I have to some extent...on a few SACD's. Seems to add "air"...but I decided I liked the base frequencies the best so far. John Quick from dCS says the filters are optimised for the 44.1 or 48 frequency and that might have something to do with it. I am also guessing over time dCS may continue to tweak the filtering on the higher clock frequencies...but just a sheer guess here.
Your mileage may vary if you're using the upsampler or hi riz downloads...I haven't tried it that. Also I highly suspect this can be filter dependent...I was only using DSD F3 or redbook up sampled to DXD and F5 Speakers: Rockport Altair 2 Preamp: Robert Koda K10 Amp: Ayre MX-R Cables: Transparent Opus MM2 Spkr, Opus MM2 & Trans Ref MM MM2 Intcnct. Power Shunyata Triton/Typhon, Anaconda Zitron cords (x9) Digital dCS Vivaldi DAC, Transport & Clock w/ Transparent Reference XL Digital cables Phono: Grand Prix Monaco TT, Schroder LT arm, Jan Allaerts MC2 Finish & Lyra Atlas, Nagra VPS/VFS Racks: Grand Prix Audio Silverstone F1 (x2) |
#134
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The Stute price is now $39000!!
Last edited by wizard; 01-24-2015 at 05:13 PM. |
#135
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Does anyone have already listened to the combo Stanford Perf10 + Vivaldi?
Last edited by Eichebaum; 01-21-2015 at 04:32 PM. |
#136
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Probably because Oscilloquartz have stopped production of the BVA that they use.
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#137
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Specs of the $39000 Stute clock:
Rubidium Unit Phase noise : <-140dBc / Hz (100Hz) <-150dBc / Hz (10KHz representative value) Accuracy at shipment : ±5×10-11 Warm-up time : <10 minutes (time required to lock and gain practical accuracy) The €1700 Quartzlock A1000A has better phase noise specs: -145dBc 100 Hz -157dBc 10 KHz Last edited by wizard; 02-04-2015 at 02:34 AM. |
#138
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I have brought this GPS disciplined oscillator, not expensive at all but very effective. It is linked to the external reference of Vivaldi clock. The input signal has to be set to TTL for best performance.
The image and details are obviously improved. I would recommed anyone using Vivaldi clock to give it a try. I'm glad I did. Last edited by Masterlu; 02-05-2015 at 12:10 AM. Reason: Links to ebay are not permitted. |
#139
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The output impedance of the Sforzato BVA Clock is 50ohm. The input of the Vivaldi clock is 75ohm. Will I need an adaptor? Will it deteriorate the signal?
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#140
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I've asked dCS. The answer:
"It is hard to tell because information for this product range online is so limited. I do not expect the impedance mismatch to be a problem, but the PCM-01 appears to output only 7dBm, or about 10mV rms into 50 ohms. The Vivaldi Master Clock’s Reference Input was designed for at least 0.5V rms, I doubt that it will lock to such a low level signal." |
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