Jump to content
IGNORED

Master Clock for your EtherREGEN


Recommended Posts

47 minutes ago, FIndingit said:

The LT1963A regulator on the top gives out 12v so unless you input closer to 12.5v dc it does nothing (except add noise probably).

 

That's interesting. Seeing as I'm giving it a well regulated 12V already it may pay to take out the regulator and link across, or else set my PSU to 13V.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment

No, of course you're still hearing the benefits of the OCXO.

If the regulator is not getting sufficient to cover its dropout voltage, it will simply pass current through without further regulation.

 

I've now trimmed my LPSU to exactly 12.5V. I'm listening and it doesn't sound any worse! I'll let you know long term if I hear any differences.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
4 hours ago, MartinT said:

I've now trimmed my LPSU to exactly 12.5V. I'm listening and it doesn't sound any worse! I'll let you know long term if I hear any differences.

 

Yes, I think it does sound better after several hours of listening. Sibilance is less (as in Paul Simon's voice, which is often mic'd too close) and naturally delivered detail up.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment

That does make sense, hearing how much better my 75 ohm version is over my original 50 ohm version. The lightning fast timing and punch are significantly enhanced.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
  • 2 weeks later...

Before you decide, think about whether you need a GPSDO unit. The BG7TBL is not GPS disciplined and features decently low phase noise. You will not improve that with the GPS, you will be adding complexity and more noise, all for long term drift improvement which is not required for music playback.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
5 hours ago, jacques_racine said:

A) many said the clock need some time to stabilize. Is this each time after being powered down? I will obviously let it run... around the clock.

B) Is 12,5V VS 12V really a thing?

 

 

A) Yes, definitely leave the clock running, OCXOs are designed that way.

B) For me, yes, 12.5V seems to fully enable the onboard low-dropoff regulator and gave me a small boost in SQ over 12V.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
On 10/4/2020 at 2:17 PM, magnuska said:

It looks like a nice addon to the ER. But how much of an improvement is it really or is it more of a "different" sound?

 

Do you mean adding the clock to the ER?  It's a big uplift in sound quality.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
  • 4 weeks later...
On 10/25/2020 at 8:34 PM, GMG said:

What about vibration damping?

Has anyone tried applying a weight right on top of the clock's silvery cover (inside the housing)?

 

perhaps a nice Tungsten cube would make a difference as it has natural damping characteristic

 

No, but it's a nice idea!

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
10 hours ago, sgr said:

What kind of footers and toppers are being used in for the Chinese Clock? 

 

I'm using Black Ravioli Pads as footers, my whole system uses their footer solutions and they are exceptional at vibration damping.

 

On top, I'm just using a large heavy door stop as a weight.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment

A modification for my OXCO master clock.  This was suggested in the thread above by @GMG.  The idea is to bond a cube of tungsten directly to the top of the Chinese oven-controlled clock module inside the BG7TBL.

 

I ordered a 20mm cube of tungsten on eBay and it arrived this morning.  I used 2-part epoxy to tightly bond it to the top of the DAPU OCXO can.  It didn't take long to harden as the clock runs at about 70°C.

 

It should provide two benefits: 1) vibration damping of the sensitive OCXO by dint of its heaviness; 2) temperature stability once the cube comes up to temperature, helping to prevent temperature variance distortions.

 

spacer.png

 

I've just had a listen to two tracks and my immediate impression is that dynamic transients have even more snap to them.  Donald Fagen's Nightfly and Kamakiriad are outstanding recordings and sounded pretty damned good, even cleaner than I remember and with outstanding starting and stopping of transients.

 

I'm leaving things to fully stabilise and will have another listen later this evening.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
2 hours ago, GMG said:

Wonder what 2 cubes could do 😉believe epoxy would do just fine, but you could also apply thermal paste or double sided thermal stickers. These are commonly used to attach heat sinks to electronic components.

 

I do have double-sided thermal tape, but I didn't want it to be a lossy coupling, so I used epoxy. This way the cube has the full resonance damping effect.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
1 hour ago, GMG said:

But, epoxy has poor thermal conductivity. So heat will not travel efficiently through the epoxy to the Tubgsten cube. 
I don’t think it is an issue here since the you probably used a very thin layer of epoxy, plus the cube is very small so even if it does create a thermal deficiency it will be small and the oxco likes it warm anyway 🙂.

 

Yes, I used a very thin layer of epoxy and squeezed it down, ensuring that the thermal barrier is thin.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
7 minutes ago, FIndingit said:

Think of the ocxo as you when you go out on a cold day. You want insulation, a warm jacket, not a piece of metal glued to your chest. 

 

If you could do such a thing, sure you'd be cold while you're warming up the piece of metal.  However, once you and the metal have thermal equilibrium, it would protect you by supplying heat back through any sudden cold snap.

 

Thermal stability.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
1 hour ago, FIndingit said:

Metals are good at dissipating heat, you have five extra surfaces exposed to cooler air than the ocxo core. The benefit comes from vibration management. 

 

It's in an enclosed environment, good for temperature control.

 

Regardless, the proof is in the listening and it's doing something good.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment
On 11/7/2020 at 6:55 PM, GMG said:

waiting to hear your update on this

 

Listening to Late in the Evening by Paul Simon, there's a lot going on in the mix with percussion, bells, brass and his voice all vying for attention. It's all layered well so as to keep his vocals clear throughout, with thrilling levels of detail.

 

Another song, Strong by London Grammar, has a deep throbby bass line throughout. How well I can follow it beneath her extraordinarily powerful voice is now enhanced.

 

It's lots of little treats like this I am noticing.

TP-Link MR6400 4G router > Uptone EtherREGEN reclocker > Sonore Signature Rendu SE streamer > Gustard U18 DDC > Gustard X26 Pro DAC > Belles SA-100 power amp > Usher Dancer Be-20 speakers. AfterDark clocks x 2. PS Audio P3 & P10 regenerators.

https://theaudiostandard.net

Link to comment

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



×
×
  • Create New...