Hi Peter,

Does it mean that the existing NOS 1/NOS 1a would be upgradeable to the "new" DAC DIY? That would really be a lot convenient.

How about naming it NOS Legend or Ultimate.

Best regards,

Arvind

Hi,

Just putting in my two bit on the praise for the NOS1a.

Being one of the later ones to go in for the upgrade, I got my upgraded unit only last week. So its obviously still in the breaking in phase.

To analyse the difference between the NOS1 & NOS1a....here goes.

General SQ: By far more clearer. Resolution is significantly better. Individualisation of the instruments is far greater. This is across the entire frequency spectrum. Soundstage too is wider & deeper.

Low Frequency: Significantly tighter & less boomy.
Mids & Highs: Significantly clearer & more accurate.

Recommendation: Those sitting on the fence should jump in & go for the upgrade, budget permitting of course. However a word of caution; this upgrade will expose weakness in the chain as well as deficiencies in room acoustic.

Peter: Fantastic upgrade really enjoying every minute of it. Thank you.

Best Regards,

Arvind

Hi,

I will check out the SQ diff between Nos1 & pre amp. I can't go without a pre amp due to gain reqd by the pre amp (as Peter mentioned) to drive the amps.

Probably a very stupid question; why can't the 50 Ohm coax cable be directly terminated with RCA. Why terminate it with BNC & then use an adapter.

Regards,

Arvind

Hi Guys,

Seems to be a very interesting discovery (if I may call it). Certainly worth attempting as the cost is very minimal. However for guys (like me) who are still using a pre amp,  should we go a step further & attempt to change the interconnect between the pre amp & amp too?

Best regards,

Arvind

Hi Peter,

While attempting to get the best setting on my set up, I changed the Q1 from 6 to 14 & Q5 from 1 to 5. The SQ is ideal for my set up & it also solved the problem of playback stopping after 4/5 tracks.

However I will send you the log files as reqd by you, if you still need it.

Best regards,

Arvind

Hi Guys,

After a number of permutations & combinations with the Q  & SFS settings, I have arrived at the best setting on my set up as follows:

Q1: 14, Q3: 1, Q4: 1, Q5: 5.
xQ1: 1
SFS: 2 (120).

The SQ is very soft & musical, just the way I like it.

Best regards,

Arvind

PS: Peter this has also solved the issue of playback stopping after 4/5 tracks.

Hi Peter,

Playback stops after 4/5 tracks have played. My settings are as per my sig.

Best regards,

Arvind

Hi Peter,

Since 1.186a, I have had the following problem:
The selected device(in settings) is the KS NOS1 but many times if i change tracks or change volume (with hotkeys) the selected device shifts to Primary Sound Driver or other devices connected to the PC.

I think this is problem is connected more with my reducing the CPU clock speed rather than the XXHE version. Is this a correct assumption?

Regards,

Arvind

Hi Peter,

What a fantastic New Year gift. The resolution & soundstage is just fantastic.

Best regards,

Arvind

Hi Paul,

I agree with you on this subject. I too noticed that reducing the speed of the cpu brought in harshness & made the music dull. I have gone back to the default speed & the SQ is by far better.

I guess this depends largely on the PC configuration/components.

Regards,

Arvind

Hi SeVeRed,

There is very faint sound from the speakers with XX at 0 dB.

Regards,

Arvind

Hi Peter,

As Nick mentioned, when you start XX Time Stability doesn't show Stable. Refresh it & it shows Stable.

So all this while I assumed that you need to refresh at starting XX.

Regards,

Arvind

Hi Nick,

Going from Min OS to normal & back to min solved the problem.

To get Time Stability to Stable I have to click Refresh every time I start XXHE.

Thanks for the solution.

Regards,

Arvind

Hi VJ,

Unfortunately without a preamp the speakers can't be driven.

Regards,

Arvind

Hi Peter,

Time Stability is activated by clicking on Refresh. In my case it isn't getting activated. This doesn't require reboot.

Time Performance Index requires reboot when activated. However when I click to activate it, nothing happens. Normally it should ask me to reboot.

Best regards,

Arvind