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MBL, dCS, Goldmund, Gryphon etc Ultra High End Equipment

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  #201  
Old 12-02-2016, 09:40 AM
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Thanks for a very comprehensive summary.

The basis of their OP rating is interesting: I can only assume that the unavailable oscillator for the OP is actually the Oscilloquartz 8607. This was available in performance selected versions which might relate to their 16 and 17 levels.

The reason for the demise of this crystal is the difficulty of getting good yields. In simple terms, all components in the oscillator including the suspension are made from slices of the same crystal, removing any thermal or mechanical discontinuities which would affect performance.

The new owners of Oscilloquartz felt that the complexity and yield are no longer commercially viable. As mentioned, some alternative structures are in development and might appear. Remember though that the Audio market is not a significant customer for such products so it is not really in a position to drive the market.

Cost is certainly going to be an issue too. Given the near $40k price for the discontinued Sforzato clock which used the 8607.

The 8607 certainly gives the "wow" factor, so I hope that alternatives at similar performance emerge before too long.
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  #202  
Old 12-02-2016, 09:45 AM
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Quote:
Originally Posted by custodian View Post
Thanks for a very comprehensive summary.

The basis of their OP rating is interesting: I can only assume that the unavailable oscillator for the OP is actually the Oscilloquartz 8607. This was available in performance selected versions which might relate to their 16 and 17 levels.

The reason for the demise of this crystal is the difficulty of getting good yields. In simple terms, all components in the oscillator including the suspension are made from slices of the same crystal, removing any thermal or mechanical discontinuities which would affect performance.

The new owners of Oscilloquartz felt that the complexity and yield are no longer commercially viable. As mentioned, some alternative structures are in development and might appear. Remember though that the Audio market is not a significant customer for such products so it is not really in a position to drive the market.

Cost is certainly going to be an issue too. Given the near $40k price for the discontinued Sforzato clock which used the 8607.

The 8607 certainly gives the "wow" factor, so I hope that alternatives at similar performance emerge before too long.
Great points and feedback; thank you!
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  #203  
Old 12-06-2016, 02:21 PM
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Quote:
Originally Posted by custodian View Post
Thanks for a very comprehensive summary.

The basis of their OP rating is interesting: I can only assume that the unavailable oscillator for the OP is actually the Oscilloquartz 8607. This was available in performance selected versions which might relate to their 16 and 17 levels.

The reason for the demise of this crystal is the difficulty of getting good yields. In simple terms, all components in the oscillator including the suspension are made from slices of the same crystal, removing any thermal or mechanical discontinuities which would affect performance.

The new owners of Oscilloquartz felt that the complexity and yield are no longer commercially viable. As mentioned, some alternative structures are in development and might appear. Remember though that the Audio market is not a significant customer for such products so it is not really in a position to drive the market.

Cost is certainly going to be an issue too. Given the near $40k price for the discontinued Sforzato clock which used the 8607.

The 8607 certainly gives the "wow" factor, so I hope that alternatives at similar performance emerge before too long.
Look up Rakon HSO14 -120dbc/1hz which is an equivalent of the BVA8607.

I understand that it is priced similarly to the 8607
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  #204  
Old 12-06-2016, 02:47 PM
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Look up Rakon HSO14 -120dbc/1hz which is an equivalent of the BVA8607.

I understand that it is priced similarly to the 8607
Thank you....according to certification reports I have on both the RBOCXO-01 and UPOCXO-OP14-A clock I have here, Hasegawa-san utilizes the BVA as a reference OCXO oscillator...

I may have an OP20-enabled clock here next year at some point.
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  #205  
Old 12-07-2016, 07:17 AM
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FYI...this is the new web-page for the UPOCXO-OP14-A clock also with improved power supply that I am testing for over a month now with fantastic results;

xOCXO NbN Premium OPt

*Reminder: Bring up in Google Chrome and elect automatic translation from Japanese.
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  #206  
Old 12-07-2016, 03:31 PM
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Yes but they don't have one for the moment...
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  #207  
Old 12-07-2016, 03:54 PM
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I have one in my rig for testing so I know they build them; give it some time (don't know how much).
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  #208  
Old 08-12-2017, 06:25 PM
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I've read all 200 + posts and realize a lot of discussion on clocks and some regarding clock cables (BNC or RCA, 50 or 75 ohm).

Let me tell you, I'm a firm believer. Received these today -- at $2K for 1 meter and I need 3; well, that about taps me out & there is no way I could afford or would be willing to spend $12K per on a 1M Nordost Odin 2.

I'll expand a bit on my experiences going from a run of the mill 75 ohm BNC to these puppies a bit later. (Contacted Martin at dCS HQ & he confirmed 1 meter 75 ohm is the ticket for the Paganini 4 box).

For now, I'll just in this thread since the other one is already corrupted.

Best Sirs,

Bob

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Amps: Dan D'Agostino Progression Monos on 20A dedicated breakers.
Preamp: Dan D'Agostino Progression Preamp.
Digital Source: dCS Paganini 4 stack (Transport/DAC/Clock/Upsampler).
Analogue Preamp: VAC Renaissance SE Phono stage with XLR Output Option & with Nordost Tyr 2 P/C and Tyr 2 XLR's.
Analogue Sources: SME 20/2 w/SME V arm & Nordost Valhalla TA cable, Palo Santos Presentation Cartridge & Akai GX-400D Reel-to-Reel w/relapped heads by JRF Magnetic Sciences. Akai RC-17 cabled remote.
Vibration Control: TT on HRS M3X 1921 shelf, Stillpoint Ultra SS under dCS Transport, Stillpoint Ultra-Mini's under dCS 3 Stack. HRS NA100's under Ansuz D8 Power Distribution Bar.
Speakers: Wilson Audio Alexia in Argento Silver/Black grills.
Power Cables: 3 each 2.5M Nordost Odin Supreme Reference on amps & preamp. Nordost Valhalla V1 on dCS Transport.
Power Distribution Bar: Ansuz Mainz Diamond 8(D8) fed by Ansuz Diamond Power Cable.
Power Outlets:Furutech GTX-D NCF (R) duplex outlet, GTX Wall Plate & Duplex Cover (x2).
Speaker Cables: 3M Nordost Odin Supreme Reference with 4 Nordost Sort Lifts.
Signal Cables: Nordost Tyr 2 XLR's 2M on dCS Paganini and Mono amps. Nordost Valhalla 2's 110 ohm Digital AES/EBU on dCS internal connections and Crystal Cable Firewire 1394 cables on dCS.
Clock Cables: 3 each 75 ohm 1.25M Nordost Valhalla BNC/BNC Digital
Headphones: Selling - 6M Cardas Clear HP cables. Vintage Koss Pro IV AA.
RCM: Audio Desk PRO
Tube Test Gear: Mint late '60's/calibrated Heathkit TT-1A & current SOTA MaxiMatcher Power and Preamp tube test sets.

Last edited by vintage_tube; 08-12-2017 at 06:27 PM.
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  #209  
Old 03-16-2018, 05:23 PM
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For cybershaft spcialiste. Wyatt about calibration ?
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  #210  
Old 03-17-2018, 07:13 AM
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Quote:
Originally Posted by jpspock View Post
For cybershaft spcialiste. Wyatt about calibration ?
JPS, what is your question? I do not understand your post?
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