Jump to content
Computer Audiophile
Superdad

UltraCap™ LPS-1 LISTENING IMPRESSIONS thread

Rate this topic

Recommended Posts

3 hours ago, mwhitak said:

Second that. Thank you to Jesus, Andrew, and Superdad  for all the great work !

Congratulations/Felicidades/Badhieyaan, indeed.

 

Share this post


Link to post
Share on other sites
14 minutes ago, Superdad said:

 

Well and of course John Swenson who engineers all these brilliant circuits!  These products would not exist without him...B|

 

Have a great weekend everyone,

--Alex C.

Scary thought honestly.  What happens to UpTone if the unthinkable happened? 

Share this post


Link to post
Share on other sites
32 minutes ago, jtwrace said:

Scary thought honestly.  What happens to UpTone if the unthinkable happened? 

 

It is in routine social worlds, their ebb and flow, that the unimaginable is imagined (not me, but a strange, sublime, unusual Durkheim): You did ask the question though.

 

Share this post


Link to post
Share on other sites
17 hours ago, Superdad said:

 

Well and of course John Swenson who engineers all these brilliant circuits!  These products would not exist without him...B|

 

Have a great weekend everyone,

--Alex C.

 

+1!

Share this post


Link to post
Share on other sites

Is it more important to have the LPS-1 on the audio bridge, or on the ISO REGEN? I have one LPS-1 and another linear power supply which is quite good but not as audibly good as LPS-1 and I want to know which to use on which device.

Share this post


Link to post
Share on other sites

I'M NOT HEARING IT - a little advice from Uptone users, please

 

I'm at the proud owner of a JS-2 and and LPS-1.  Both have been in my system for many months.  Happy camper.  Thanks Alex, John S. (and Jesus on the microRendu assist).

 

Here's my setup: Topaz IT => JS-2 and to => my Exogal Ion digital power amp (powered by a 24V/9.2A Meanwell SMPS brick!--a very unique amp, with a very sketchy power supply for this crowd, I know.  But the gents at Exogal seem to know what they are doing).

 

The JS-2, in turn feeds my Exogal Comet DAC (which connects to the Ion via a proprietary employment of an HDMI cable--I said it was unique) and my LPS-1, which, in turn, powers the microRendu, which of course plugs into the Comet via a USPCB.

 

So here's my (first world) problem:  I decided today to listen "critically" as they say and remove the LPS-1 from the system.  I can hear no difference.

 

I know this is all system and ear dependent (I'm 55 with high freq. loss), but can someone tell me what to listen for?  The LPS-1 is supposed to "completely block the path of AC LEAKAGE CURRENTS".  But what exactly should I be listening for to determine whether I'm going to regret taking it out of my system?  

 

I realize one sensible answer is: if you can't hear the difference, that's all that matters.  Sell it.  But I want to give it a good chance before I do.

 

Thanks.

Share this post


Link to post
Share on other sites
5 minutes ago, sockpit said:

I'M NOT HEARING IT - a little advice from Uptone users, please

 

I'm at the proud owner of a JS-2 and and LPS-1.  Both have been in my system for many months.  Happy camper.  Thanks Alex, John S. (and Jesus on the microRendu assist).

 

Here's my setup: Topaz IT => JS-2 and to => my Exogal Ion digital power amp (powered by a 24V/9.2A Meanwell SMPS brick!--a very unique amp, with a very sketchy power supply for this crowd, I know.  But the gents at Exogal seem to know what they are doing).

 

The JS-2, in turn feeds my Exogal Comet DAC (which connects to the Ion via a proprietary employment of an HDMI cable--I said it was unique) and my LPS-1, which, in turn, powers the microRendu, which of course plugs into the Comet via a USPCB.

 

So here's my (first world) problem:  I decided today to listen "critically" as they say and remove the LPS-1 from the system.  I can hear no difference.

 

I know this is all system and ear dependent (I'm 55 with high freq. loss), but can someone tell me what to listen for?  The LPS-1 is supposed to "completely block the path of AC LEAKAGE CURRENTS".  But what exactly should I be listening for to determine whether I'm going to regret taking it out of my system?  

 

I realize one sensible answer is: if you can't hear the difference, that's all that matters.  Sell it.  But I want to give it a good chance before I do.

 

Thanks.

Are you powering the LPS-1 with an SMPS and is the -ve output of the SMPS grounded ?  Big difference for me and others.  Look for JSGT in the grounding thread.

Share this post


Link to post
Share on other sites

No.  I'm powering LPS-1 with the JS-2 (overkill!?!) on 12v (as Alex C. recommended).

 

I've read about the JSGT maneuver, but have assumed that by feeding the LPS-1 with the JS-2, I needn't lose sleep over that.

 

 

Share this post


Link to post
Share on other sites
13 minutes ago, sockpit said:

No.  I'm powering LPS-1 with the JS-2 (overkill!?!) on 12v (as Alex C. recommended).

 

I've read about the JSGT maneuver, but have assumed that by feeding the LPS-1 with the JS-2, I needn't lose sleep over that.

 

 

I have JS-2 and LPS-1 and am happy to power devices with the JS-2.  I think you can find another use for the LPS-1.

Share this post


Link to post
Share on other sites
1 hour ago, sockpit said:

I'M NOT HEARING IT - a little advice from Uptone users, please

 

I'm at the proud owner of a JS-2 and and LPS-1.  Both have been in my system for many months.  Happy camper.  Thanks Alex, John S. (and Jesus on the microRendu assist).

 

Here's my setup: Topaz IT => JS-2 and to => my Exogal Ion digital power amp (powered by a 24V/9.2A Meanwell SMPS brick!--a very unique amp, with a very sketchy power supply for this crowd, I know.  But the gents at Exogal seem to know what they are doing).

 

The JS-2, in turn feeds my Exogal Comet DAC (which connects to the Ion via a proprietary employment of an HDMI cable--I said it was unique) and my LPS-1, which, in turn, powers the microRendu, which of course plugs into the Comet via a USPCB.

 

So here's my (first world) problem:  I decided today to listen "critically" as they say and remove the LPS-1 from the system.  I can hear no difference.

 

I know this is all system and ear dependent (I'm 55 with high freq. loss), but can someone tell me what to listen for?  The LPS-1 is supposed to "completely block the path of AC LEAKAGE CURRENTS".  But what exactly should I be listening for to determine whether I'm going to regret taking it out of my system?  

 

I realize one sensible answer is: if you can't hear the difference, that's all that matters.  Sell it.  But I want to give it a good chance before I do.

 

Thanks.

 

I remember reading Uptone saying it didn't matter what was powering the LPS-1, now it turns out you need some kind of particular jury-rigged power configuration to make it sound better than nothing?

 

Where I'm from that's called false advertising.

Share this post


Link to post
Share on other sites
1 hour ago, sockpit said:

The JS-2, in turn feeds my Exogal Comet DAC (which connects to the Ion via a proprietary employment of an HDMI cable--I said it was unique) and my LPS-1, which, in turn, powers the microRendu, which of course plugs into the Comet via a USPCB.

 

So here's my (first world) problem:  I decided today to listen "critically" as they say and remove the LPS-1 from the system.  I can hear no difference.

 

Question for you:  When you removed the LPS-1 from microRendu--for the comparison--what then were you powering the microRendu with? 

Share this post


Link to post
Share on other sites
20 minutes ago, Horace28 said:

I remember reading Uptone saying it didn't matter what was powering the LPS-1, now it turns out you need some kind of particular jury-rigged power configuration to make it sound better than nothing?

 

Where I'm from that's called false advertising.

 

Hi Michael:

Well neither I nor 1,500+ UltraCap LPS-1 users think that!  Everyone has been enjoying great benefit from the LPS-1.  But yes, it was discovered that the 80pF of total capacitance from some of the transistors used in the LPS-1 were letting pass a unique form of leakage from its stock SMPS charger. It is called high-impedance leakage and it is easily dispensed with.  Please see my full report about it here:

 

 

Share this post


Link to post
Share on other sites
28 minutes ago, Superdad said:

 

Question for you:  When you removed the LPS-1 from microRendu--for the comparison--what then were you powering the microRendu with? 

Hi Alex,

 

the JS-2, naturally 😉

 

you see, I have always powered the lps-1 with the JS-2.

 

so I asked myself, could I live without the LPS-1.

 

after an afternoon of listening, I think the answer is yes.

Share this post


Link to post
Share on other sites
1 hour ago, sockpit said:

Hi Alex,

 

the JS-2, naturally 😉

 

Well that makes perfect sense then since the JS-2 is a mighty fine supply in its own right.  Very quiet, low impedance, and very little leakage from it.  

And since you are using it to power your both DAC and the microRendu--which are joined together (via grounds) and are already isolated (via Ethernet), there are not even any power supply interactions (any two AC connected power supplies in a system--even linears--for a leakage loop).

 

Now if you were also using a ISO REGEN, then powering the DAC and the microRendu with a single JS-2 would be defeating the galvanic isolation of the ISO REGEN.  But that is another story...B|

 

So your report makes sense.  But power your microRendu from something other than a JS-2 and you will then be wishing for the LPS-1--or the JS-2!

Share this post


Link to post
Share on other sites
3 hours ago, Superdad said:

 

Hi Michael:

Well neither I nor 1,500+ UltraCap LPS-1 users think that!  Everyone has been enjoying great benefit from the LPS-1.  But yes, it was discovered that the 80pF of total capacitance from some of the transistors used in the LPS-1 were letting pass a unique form of leakage from its stock SMPS charger. It is called high-impedance leakage and it is easily dispensed with.  Please see my full report about it here:

 

 

 

I read through the "grounding trick" several times and it looked confusing and messy. And I was not able to obtain the parts needed to do it anyway (which weren't clearly specified). If this "trick" is so important it should be put in a manual with the device, and very clearly stated what is needed to be done.

Share this post


Link to post
Share on other sites
13 hours ago, Superdad said:

 

Well that makes perfect sense then since the JS-2 is a mighty fine supply in its own right.  Very quiet, low impedance, and very little leakage from it.  

And since you are using it to power your both DAC and the microRendu--which are joined together (via grounds) and are already isolated (via Ethernet), there are not even any power supply interactions (any two AC connected power supplies in a system--even linears--for a leakage loop).

 

Now if you were also using a ISO REGEN, then powering the DAC and the microRendu with a single JS-2 would be defeating the galvanic isolation of the ISO REGEN.  But that is another story...B|

 

So your report makes sense.  But power your microRendu from something other than a JS-2 and you will then be wishing for the LPS-1--or the JS-2!

 

Thanks for the reply Alex.

 

I'm going to put it up FOR SALE , then.  Below are the terms; please PM me if interested: 

 

Share this post


Link to post
Share on other sites

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

  • Superphonica
×