XXHighEnd - The Ultra HighEnd Audio Player
September 19, 2018, 01:45:45 pm *
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 on: September 19, 2018, 07:44:52 am 
Started by PeterSt - Last post by PeterSt

Everybody who was in last Friday's (Sept 14) shipment, received a config where the A and B connectors were swapped against what was promised on the withgoing paper (which latter also lacked in one (?) occcasion). The config was meant to be like what you see below. Please adjust accordingly because what was delivered was untested and has unknown result.

Apologies for the inconvenience !

 on: September 18, 2018, 04:19:57 pm 
Started by Shreekant Somany - Last post by Shreekant Somany
Thank you, the problem is sorted out. This  is what I did:
1. Enabled “ read hidden files” in the options menu.
2. Opened the music folder.
3. In the search space on the rt.hand corner typed ‘ ._01’ and
    pressed search : All the ._01 files in all the music folders
     opened, which then I deleted.
This has solved the problem.

 on: September 18, 2018, 09:40:32 am 
Started by manisandher - Last post by PeterSt
Still normal behaviour?

Maybe not. But I estimate the NOS1a/G3 of concern not to be the issue. I said estmate. Happy

First thing to try is to unplug the USB cable, try to have the DC Offset right (it can be dine but can be difficult) and look again. Still the same ?

Then I hope it is not too difficult to put your othet NOS1a/G3 in that place. No need to try without USB connection.

If this remains unconclusive, I have a few more cards to play ... (could be false trumps)


 on: September 17, 2018, 09:04:43 pm 
Started by manisandher - Last post by manisandher
There is almost no variability in DC offset on my NOS1a.

Nor on my office NOS1 Happy. It's just my main NOS1 that seems to exhibit slightly different behaviour. But perhaps it's still within 'specs'.


 on: September 17, 2018, 09:03:02 pm 
Started by manisandher - Last post by manisandher
Thanks Peter. But I should have mentioned the following:

1. the changes on the main NOS1 happen every 1/2 second or so - jumps of up to 0.5mV are common
2. this is all with no music playing at all
3. both NOS1s run off exactly the same AC mains circuit

Still normal behaviour?


 on: September 17, 2018, 08:46:07 pm 
Started by manisandher - Last post by PeterSt

All is perfectly normal. Generally, though, the DC Offset is a bit higher with most of the /G3's. This is inherent to the chips used for it. So it is in the specs and it is accepted.


PS: I think the variability is constant indeed, and if not it isn't automatically changing each second. But don't confuse that with music playing because the lower the (sub)low, the more it changes on the melody of the bass. This is DC just the same, though varying per LF wave cycle (I am sure you understand).

 on: September 17, 2018, 06:41:57 pm 
Started by manisandher - Last post by briefremarks

There is almost no variability in DC offset on my NOS1a.  The DC offset dropped after the G3 upgrade, but other than that values remain constant.


 on: September 17, 2018, 04:52:17 pm 
Started by manisandher - Last post by manisandher
Hi all, I've got two NOS1s - one in my main system, and one in my office system. Not only do the two NOS1s show very different DC offsets, but the DC offsets in my office NOS1 are pretty much rock solid, whereas the DC offsets in my main NOS1 vary continuously:

Main: 15.0-16.1 (upper meter) and 10.8-12.0 (lower meter)
Office: 1.7-1.8 (upper meter) and 2.7-2.8 (lower meter)

Is my main NOS1 behaving normally, I wonder? [It sounds bloody good, I have to say.]


 on: September 17, 2018, 04:18:28 pm 
Started by briefremarks - Last post by manisandher
Hi Ramesh, in my office system I use the NOS1 without XX pretty much exclusively. My chain is:

Roon/Tidal -> HQPlayer (upsample to 705.6) -> NOS1

I love the ease with which I can access music and get it playing quickly. Being able to stream Tidal and internet radio are massive pluses too.

BUT... there is no way I'd use this chain in my main listening room - it sounds nice... but nowhere near as good as XX -> NOS1.

I have no experience with HT.



 on: September 17, 2018, 04:10:45 pm 
Started by briefremarks - Last post by briefremarks

A quick note to see how people are using the NOS1 with sources other than XXHE.  Specifically streaming Tidal without preparing with XXHE, and for HT.  The main question is if 44.1, and 48 sources sound OK without the upsampling XXHE does.  Of course I can try this with the XXHE filtering off, but wanted to learn about other experiences trying this.


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