Hi all,

One word: WOW! The NOS1a 75B with Blaxius cables (180 cm) is the best. More energy, bigger soundstage and lot of real bass. And the highs are smooth.

I already used a bnc cable with adapters, and that was a nice step up. But this is another big step. I sounds Great!

Yesterday the DAC was upgraded. Already direct out of the box and almost cold it was clear to us (me and the family) this is a winner.

Last weeks I did some acoustical treatments with absorption panels. That solved some issues with highs and reflections. But we also lost some dynamics and energy. That is all back now and even much more!

If you have the possibility get this upgrade! It is a bigger step up then I expected.

The sound is now almost at the point I hoped for. Still some tweaks to go, powercords and speakercables.

Regards, Arjan

Hi Peter,

The cables are a bit to long, so somewhat twisted. Although the bajonet can twist (in relation to the cable) the connection to the rca adapter is more loose. So twisting the cable loosen the connection. I am aware of that now! Ordered some adapters as Joachim suggested, maybe that will make the connection more tight on the amplifier side.

regards, Arjan

Thanks Joachim, will have a look at these!

Arjan

Hi Peter,

Let us make an appointment! Shall we PM for that?

Small remark on bnc connectors. Yesterday I got an high pitching sound. Came out that the bnc connection was not properly connected anymore. They seems to be a bit easy to disconnect. Would tnc, if possible, be a better alternative? I would try tnc if I got a hold of tnc-rca adapters. But they seems to be rare. Or just some glue on the connector?

regards, Arjan

Hi,
I am live near Peter. I already have good results with 1$ coax cables plus cheap bnc-rca adapters. I would like to volunteer to get my nos1a changed. If that is a good suggestion. (Remark: would like to have the nos1a terminals lower, now they conflict with the usb port.)

But I use separate amplifiers (Jadis JA30). I could ask my shop to change the terminals if needed. They did a replacement of the rca to new rca terminals some years ago. Or I stick to the bnc-rca adapter for now. Not sure if replacing of these terminals at the amplifiers are mandatory?
regards, Arjan

Hi,

No problem!

Shielding:
http://www.youtube.com/watch?v=CdLHLlGyRDQ

Connectors:
http://www.youtube.com/watch?v=7CxalnvBGTE

Powercord:
http://www.youtube.com/watch?v=apkhJVbsRzA

Brass screws:
http://www.youtube.com/watch?v=qhlDrLKBmXA

There is more...... regards, Arjan

Hi,
Did any of you ever seen the youtubes of Oddiophile?
It is from the Virtual Dynamics company but not really sales promotion. Some of the tips and tricks seems really helpful.
Saw some about power cords and brass screws on speaker drivers. Also the remarks on connectors seems to make a lot of sense to me.
regards, Arjan

Yo app

Hi Joachim,
I have changed my profile! Thank you for mentioning!
The PC I use now is different from my full linear and modified XXHE pc.
A small nice looking fanless case.
When the burn-in is done I will do a test with the two pc's.
Regards, Arjan

Hi Joachim,

Good to hear how the 'a' relates to the 'old' NOS1 I never had! I am currently halfway the burn-in period (10th day) of my new NOS1a. It is a rollercoaster as Coen said before, some days are okay other days are worse.

But this evening the SQ is beautiful!

regards, Arjan

Hi all,

Mani, congrats with the Otelos. They look very nice!

First the NOS1a! Yesterday I let it burn-in, just one day....I know that is nothing.
Today I had some time to listen, and it is very good already! It is a better DAC then the replaced NAD M51 with audiophilleo 2 spdif converter. How much better, difficult to say the sound character is not changed, just a bit better in all areas. The NAD M51 was not bad at all, especially with my xxhighend pc that is powered by linear psu's. But it looks like a pc on an intensive care with all the leads going in and out.

But as Coen already stated the burn-in rollercoaster must be finished before I can make final conclusions.

One thing I checked Today (maybe to early as well) is there a difference in SQ depending on the pc used. I made a new fanless pc (hdplex case) and linear psu (hdplex). It is a low power i7 so less powerfull then the xxhighend pc. I run xxhighend on it without any special settings like minimized OS or playback drive. I compared it with the xxhighend pc that has all possible features active. And (wispering) I hear very small differences, the fanless pc sounds a bit leaner and more restless in difficult music parts. So at this moment I still prefer my xxhighend pc.

Peter, on the fanless Pc I use the xxhighend -e version, not on the xxhighend pc, might that be the reason? Do you have some hints for other possible reasons? Or just wait untill I have done this test again.

I will first burn-in the NOS1a for a couple of weeks and do this test later on again!

And with the fanless pc I also really like the SQ!

Kind regards, Arjan

Hello all,
Last Sunday evening we had our first impression of the NOS1a at Peters home. My family and me have enjoyed the hospitality of Peter and his family that evening. Special thank you to Ciska and Paul! We know now who is the better drummer! Luckily the worse drummer is so well gifted in other areas. Although The Netherlands is a small country we discovered this nice region around Oene (Epe) again.
During the meal we talked about our jobs and I learned also Peters honest passion in that area.
And Ciska the meal was delicious!

Off course we listened to music via the NOS1a and the Orelo speakers. I learned some new music and passed the test! Also Peter learned some new music he already had in his possession. Because we could listen to music we were familiar with also my children enjoyed it.

I was able to NOT fall in love with the Orelo speakers. And I am happy with that, because they will never fit in our listening room (=living room) And buying a new home for speakers will never pass the board.
I think they are speakers you have to learn listening to, but they are really good. It is like falling in love, not at first sight, but you have to learn them better, and you will see that they have the best character and soul there is. That is good, I know from experience that a speaker that gives you a first WOW effect will be hated after 2 weeks. And off course the whole setup is so different from my own, like the size of the room to name one. Yes they are really good, that was proven by the live drumming recordings we heard. What I really liked was the reproduction of voices!

Peter is already using his new filter in xxhighend. He did one switch back to the old, I did not know that but he asked me what was different. For me the new filtering is the better one, in one word its cleaner! But I know of people who will be able to write a long essay about this.

Our main reason to be there was, picking up a new NOS1a! Yes, we have it.

Later to day I will write my first impressions with it at home. It is not an upgraded NOS1! So I can not write about the upgrade. Sneak peek: It is good, even after just 1 day!

kind regards, Arjan

Hi,
Today I heard about teleporting off data with quantum parts......
Maybe in the next NOS1b version no expensive wires are needed anymore.
Regards, Arjan

Hi Peter,

You need a kind of warehouse and planning system.....
But I think you know these systems.

Regards, Arjan

Hi,
While waiting for a NOS1a in the very near future I did a final linear psu upgrade on my XXHE pc. And I am surprised about the stepup in SQ.

As you see in my profile I am not using a NOS1 but a AP2 + purepower usb - spdif converter to a NAD m51.
For my pc I use a Paul pang picoPsu feeded from a linear lab psu. But I removed the silverwire of the picoPsu, because I do not like silverwire, and replaced it with better 'copper' wire. The external esata hdd together with the pc fans are powered by 2 separate linear lab psu's.
Next there is the usb card, it is a Silverstone card but with a twist, I replaced the clock with a Paul pang clock. I feed the usb card with 2 linear psu's. The 3.3v from a linear lab psu. But, and that works remarkably good, for the 5v I use a aqvox linear psu. It was used for clean usb power but I put a molex connector on it to connect to the modified usb card.
This last upgrade, the aqvox on the usb card, made a significant difference. I think the ripple of the psu is <0.1mV.

This has raised the bar for the next to come NOS1a. But it needs 5 linear psu's for the XXHE pc to get this far!
I expect that with the NOS1a I can detach all the wires and psu's from the pc and go back to a normal decent atx psu. We will see......

Regards, Arjan