[Crypt Keeper]

The vendor of these fuse advises me here in Europe , for the 630 ma that it gives better result without any risks . What are asking Gustard or using as standard for their U18 ?

On the fuse it says 250 V, so I think you should be fine with 500 mA… Some manufacturers recommend less Amperage with higher Voltage . This from Farad 3 LPS Manual on fuses: “we recommend using a 800mA slow blow 5x20 for 230Vac versions and a 1.6A slow for 115Vac input versions”

 

[Larent]

Do you think that adding a ipurifier 3 usb filter to the u18 , that it would be a good idea, it seems to me that it would be a dubble use for the same objective

 

[kumar402]

Do you think that adding a ipurifier 3 usb filter to the u18 , that it would be a good idea, it seems to me that it would be a dubble use for the same objective

U18 already has galvanic isolation in place. No need to use it

 

[801evan]

Anyone

Do you think that adding a ipurifier 3 usb filter to the u18 , that it would be a good idea, it seems to me that it would be a dubble use for the same objective

Usually always a yes but you will need a idefender and do external power to hear the benefits. Otherwise the purifier will get the power from the laptop or streamer and you will end up with a worse sound. After years of trying devices, 'galvanic isolation' doesn't really mean anything in decoupling/isolation from upstream for better SQ.

 

[doitttt]

idefender +xpower, make clean power, from laptop ,gives clean sound.
laptop haves, dirty power from usbport
ipurifier 3 good idea , less distortion, due to dc offset

 

[kumar402]

I mean we can put these reconstruction devices in series and there is no end to it. Let U18 do its job of removing noise and signal reconstruction. Adding more devices that does the same like signal reconstruction etc will only make it worse.

 

[T 1000]

After the initial impression that by adding Idefendert + Elite power I got the quality of the resolution, shortly after I removed it from the USB line.
Idefender did bring a shade of better resolution, but it also brought unnecessary brightness to all sounds
Of course, this is in my system and my impressions

 

[801evan]

After the initial impression that by adding Idefendert + Elite power I got the quality of the resolution, shortly after I removed it from the USB line.
Idefender did bring a shade of better resolution, but it also brought unnecessary brightness to all sounds
Of course, this is in my system and my impressions

This is with usb purifier?

 

[doitttt]

no
clean power, and remove, dc offset
provides better sound, especially ,in bass and midrange
and high quality usbcable
have tested it 200mhz isolation, is somewhat flat, for laptop without anything
clean power, from the laptop, are key words here
dc offset, also gives something

 

[soumya.banerjee]

no
clean power, and remove, dc offset
provides better sound, especially ,in bass and midrange
and high quality usbcable
have tested it 200mhz isolation, is somewhat flat, for laptop without anything
clean power, from the laptop, are key words here
dc offset, also gives something

Please don't toss around jargons at your whim if you don't understand what they mean.
I have seen you quote "you tested this and that" and you have been called out elsewhere.

You want to quote your subjective impressions - that's fine. Let's not try to co-relate them to some imaginary scientific metric / measurements to justify them.
And no, I do not represent Cargo Cult Science websites like ASR before you jump to that conclusion

 

[Larent]

I ve tried the Ifi ipurifier 3 on the U18... just curious , well, in my loudspeaker system , it gives a brighter sound , may be too bright , i didn't use the idefender + , because you have to get a power supply or power bank apparently .

On the other hand, on my qutest for my headphone system, even thoug that the chord qutest has a galvanic isolation, it brought more resolution from my PC.

with the zen stream , it didn't add something special , didn't like the combination though .

Moral of the story, ...it works well with some devices and less good matching with other devices .

Next step the purple SR fuse .... ont the Gustard U18.

 

[doitttt]

clean power, from the laptop, are key words here.

 

[801evan]

I ve tried the Ifi ipurifier 3 on the U18... just curious , well, in my loudspeaker system , it gives a brighter sound , may be too bright , i didn't use the idefender + , because you have to get a power supply or power bank apparently .

On the other hand, on my qutest for my headphone system, even thoug that the chord qutest has a galvanic isolation, it brought more resolution from my PC.

with the zen stream , it didn't add something special , didn't like the combination though .

Moral of the story, ...it works well with some devices and less good matching with other devices .

Next step the purple SR fuse .... ont the Gustard U18.

Yep precisely shows that u18 and any device that is "galvanic isolated" will still have SQ differences depending on the upstream chain. Also shows how inadequate an APx555 is.

 

[Crypt Keeper]

My “fanless” laptop always been noisy… Running on battery or PS (Due to Lithium batteries and switching “after-battery” regulators, as far as I know…) but mini-pc with a nice LPS or Ifi Elite 12v was much, much better…

 

[Larent]

I will receive a LPs 12 v for the zen stream and my switch netgear. I ll add idefender +. We ll see in both cases ipurifier gustard + denafrips pontus in i2s + zen stream + idefender on one hand .

And with the qutest chord on the other hand with pc not laptop . Here again with occ Cooper USB cable and ipurifier gives already substantial better results.