All,

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 !
Peter

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.

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

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)

Regards,
Peter

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

Mani.

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?

Mani.

Mani,

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.

Peter

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).

Mani:

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.

Ramesh

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.]

Mani.

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.

HTH.

Mani.

All,

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.

Ramesh