|
632
|
Ultimate Audio Playback / XXHighEnd Support / Re: Restore point W8
|
on: September 21, 2013, 10:42:24 pm
|
Hi Juan. Well there are subtle differences, some details seem clearer, but it also tells me that my preamp is (was) quite transparent. I don't find this as easy as with a volume at hand, but it certainly follows the suggestion that less is better  I have also tested with a reboot, without shutting the power amp: only a tick so it looks as if I was worried for no reason... Regards, Alain |
|
|
|
|
634
|
Ultimate Audio Playback / XXHighEnd Support / Re: Restore point W8
|
on: September 21, 2013, 09:26:31 pm
|
Sorry to intrude... I used Google translation to understand Gerard, is it possible that you are changing from Minimize OS to Normal OS with the copy that is in ramdisk ? Not that it will automatically correct things, but I strongly advise to always use the physical XXHE that is on your disk to do this, not the XXHE in ramdrive... Regards, Alain |
|
|
|
|
640
|
Ultimate Audio Playback / XXHighEnd Support / Re: W8 Ticks
|
on: September 18, 2013, 01:54:38 pm
|
|
Hi Paul,
Do you go on Qobuz website ? If you can and you find that album, it is most of the time possible to get only individual songs.
It could help you determine if this is in that recording or not ?
Alain
|
|
|
|
|
642
|
Ultimate Audio Playback / Chatter and forum related stuff / Re: Sound system chain and ground scheme
|
on: September 17, 2013, 05:14:44 am
|
|
In the continuation of my hunt for noise, I modded a cheap powerbar to separate the ground between the outlets. Quite cheap inside... I will get a better one.
Well what do I know...
First I can now use the NOS1 with no PE...
Second, I can plug the preamp on PE with no difference...
Still the power amp needs to be on no PE. That was quite clear yesterday when I did my test with the 3 different amplifiers I have.
You may ask why I decided to play again with this. Well, I still have a "hum" with some grunge. Nothing to compare with that annoying frequency that I had previously, but still.
It's the 2 subwoofers... 500W class D amp for each. They "leak" in the preamp...
The male IEC receptacle on each of them has only 2 prongs. No PE for them. Yet I tried with a Non PE powerbar, but of course there was no difference. I played with the preamp on PE and Non PE. No difference.
... My quest is not finished...
Alain
|
|
|
|
|
643
|
Ultimate Audio Playback / Chatter and forum related stuff / Re: Sound system chain and ground scheme
|
on: September 16, 2013, 05:30:38 pm
|
I find these ideas quite interesting... "To PE" or "Not to PE" is the question I will go this afternoon look for a good, solid powerbar that I can open. There is still a "grunge" (nothing compared to what I had before) and I suspect it would be between the preamp and amp (on the same Non PE powerbar, but "looping" through interconnects and the ground in the powerbar itself). Lots of new stuff to test, but this time it will be more fun Thanks guys ! Alain |
|
|
|
|
644
|
Ultimate Audio Playback / Chatter and forum related stuff / Re: Sound system chain and ground scheme
|
on: September 16, 2013, 04:40:55 pm
|
And yes, a powerbar with the earth pin removed should be handy to use, but I would advise against twisting the pin in all directions when you remove the Earth prong. I did that once and... I had a short circuit... The ground wire inside went loose and touched the hot wire... So if you decide to have such a powerbar, maybe it will not be a bad idea to replace the "head" (the 3 prong connection) with one that you can install yourself, after carefully removing that earth prong. Or at least "cut" the prong, don't twist it...
Even if you disconnect the earth of the bar at the plug you are not rid of the loops. For that each receptacle in the bar has to be disconnected from the earth. I made a few cables with the earth wire cut and marked them as such. The powerbar still has earth for the screen of the cable (if present). That would be connected at the powerbar side only. Regards, Coen Ah... Of course... Thanks Coen. Will try to find a powerbar that I can open  Regards, Alain |
|
|
|
|
645
|
Ultimate Audio Playback / Chatter and forum related stuff / Re: Sound system chain and ground scheme
|
on: September 16, 2013, 04:20:19 pm
|
|
And about the external hard drives...
When I connected the "spinning" hard drive (powered with a 3 prong linear power supply), I could hear the starting cycle through the speakers, even it the preamp was in "mute"... This, when the PSU was connected to Non PE. With PE, silence...
This also is a matter of "trial and error"...
Alain
|
|
|
|
|
Show Posts
you again. 
