UltraCap™ LPS-1 LISTENING IMPRESSIONS thread

[Horace28]

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.

[Horace28]

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.

[Horace28]

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.

[Horace28]

On 2/4/2018 at 6:12 PM, Superdad said:

 

It is not so important.  That was my point.  It is measurable but not very audible (though some claim it is).

You seem a bit upset about it Micheal.  And I know you have had some unusual difficulty with the second-hand ISO REGEN in your system.

Unhappy customers are not at all what UpTone is about, so I would like to extend our 30-day money-back offer to you on the LPS-1, even though you have had the unit since last October.  Please let us know if you wish for that.

Thanks,

ALEX

 

Thanks for the offer. I'm not upset with the LPS-1 at all (in fact am considering ordering another to try with my ISO REGEN), I just had the impression that certain mods needed to be done. Good to know they are not very important.