[marcelnl]

BTW, can anyone tell me where the fuse is hidden. I have to admit I only briefly glanced through its internals when I opened the SU1 but i did not see one.

 

[Baten]

BTW, can anyone tell me where the fuse is hidden. I have to admit I only briefly glanced through its internals when I opened the SU1 but i did not see one.

It's somewhere in the IEC inlet IIRC

 

[marcelnl]

It's somewhere in the IEC inlet IIRC

thanks , found it ...silly me, forgot to check the outside...anyone with experience with fuse rolling ? I have added a SR orange to the amethyst (to find out I need two) and was pleasantly surprised by the difference....

 

[marcelnl]

so far I'm very pleased with the SU1, especially now with 4 ceramic C's removed from the board. highs have never sounded so dynamic and organic, sound is open and flows very nicely!

 

[LoryWiv]

I have developed annoying background hiss somewhere in my chain that is hard to diagnose. I am considering trying to reduce USB noise from the PC by adding an iFi iSilencer between PC USB out and SU-1 USB in. My question is whether the SU-1 itself would be expected to reduce USB noise from the PC input before data signal is output I2S to my DAC, in which case iSilencer before the SU-1 is redundant. Alternatively, if the SU-1 does jitter reduction, reclocking etc... but nothing to reduce USB bus noise originating from the PC, iSilencer may be worth a try.

Any thoughts / insight appreciated. Thanks.

 

[Baten]

I have developed annoying background hiss somewhere in my chain that is hard to diagnose. I am considering trying to reduce USB noise from the PC by adding an iFi iSilencer between PC USB out and SU-1 USB in. My question is whether the SU-1 itself would be expected to reduce USB noise from the PC input before data signal is output I2S to my DAC, in which case iDefender before the SU-1 is redundant. Alternatively, if the SU-1 does jitter reduction, reclocking etc... but nothing to reduce USB bus noise originating from the PC, iSilencer may be worth a try.

I use an Intona isolator before the USB input. Seems to do something.

 

[LoryWiv]

Thanks @Baten. Is that "something" reduce noise or improvements related to other aspects of sound quality?

 

[iFi audio]

Thanks @Baten. Is that "something" reduce noise or improvements related to other aspects of sound quality?

That Intona device is a galvanic isolator that also reduces noise, but does so differently (by galvanically isolating the USB line) than our iSilencer.

 

[LoryWiv]

That Intona device is a galvanic isolator that also reduces noise, but does so differently (by galvanically isolating the USB line) than our iSilencer.

Thanks. I DID try iGalvanic and it did not impact the specific issue I am currently having, so galvanic isolation solutions don't seem applicable.

 

[iFi audio]

Thanks. I DID try iGalvanic and it did not impact the specific issue I am currently having, so galvanic isolation solutions don't seem applicable.

Understood. Perhaps you have a ground loop somewhere. If your USB line has this issue, our iDefender3.0 was designed to target it, and works well with iSilencer3.0.

 

[LoryWiv]

Understood. Perhaps you have a ground loop somewhere. If your USB line has this issue, our iDefender3.0 was designed to target it, and works well with iSilencer3.0.

Thank you, but I am confused. U thought that iGalvanic also broke ground loops, and in my instance there was no impact. So if my issue is a noisy PC / USB bus, which of the products do you recommend: iSilencer, iPurifier or iDefender. I really don't need reclock as I have a DDC and high quality DAC, but remain a bit uncertain as the 3 products I've mentioned seem to overlap a bit and I don't want multiple extra products in my chain unless there is a clear and specific expected benefit for an identified issue..

Thanks!

 

[iFi audio]

Thank you, but I am confused. U thought that iGalvanic also broke ground loops, and in my instance there was no impact. So if my issue is a noisy PC / USB bus, which of the products do you recommend: iSilencer, iPurifier or iDefender

You got me there, iGalvanic3.0 also breaks ground loops

Of all three products you listed, iSilencer is the one designed for USB noise reduction. iDefender3.0 breaks ground loops and provides external 5V, whereas iPurifier is the "baby" iUSB3.0 reclocker. So yes, in your case I would try iSilencer.

 

[arnaud]

Maybe it’s time to iSimplify your product line as it comes across confusing at present stage imho.

 

[iFi audio]

Maybe it’s time to iSimplify your product line as it comes across confusing at present stage imho.

If you think about the same tech applied into different products and scaled accordingly to price, it's not that confusing. Plus, we're always here and our support line if there are any questions/doubts

But who knows, perhaps one day we'll change the current strat, we never say never

 

[marcelnl]

now just installed a JCat USB card in my NUC (well in, it's hangs outside), big improvement in soundstage, inky black background, original acoustics etc.

Now onwards to I2S from the Su1 to the Amethyst.