NAC-N 272 optical input question?

Posted by: Dr_J on 02 April 2017

Just connected my Apple Airport Express 2 to Dig 4 (Toslink) on my 272 and, whilst AirPlay plays OK, I get the message "Cannot reclock audio" on the 272 display.......?

Any thoughts?

KR, J

Posted on: 02 April 2017 by JogoVogo

Hi, the problem I know. You have after a few seconds or minutes the messsge on display, a short stop and then goes down the quality. The AE2 is not clock stable. Get an AE1 (A1264). This is much better.

https://www.computeraudiophile...pple-AirPort-Express

 

 

 

Posted on: 02 April 2017 by Huge

Have you tried selecting setup for the the Dig 4 input and changing the 'Unstable Source" setting to 'Yes'.

Posted on: 02 April 2017 by Dr_J

Thanks Huge, sounds logical and will give it a try and report back.

Many thanks,

KR, J

Posted on: 03 April 2017 by Dr_J
Huge posted:

Have you tried selecting setup for the the Dig 4 input and changing the 'Unstable Source" setting to 'Yes'.

So where is the Unstable Source setting for the 272? Can't find it anywhere?

KR, J

Posted on: 03 April 2017 by Huge

Firmware 4.4...

<Setup>    - select
<Inputs>    - select
<Digital 4>    - select
<Unstable Source> is last item on menu list     - select, set to Yes

Posted on: 03 April 2017 by Dr_J

Thanks Huge,

Now  set, will test later on.

Many thanks.

KR, J

Posted on: 04 April 2017 by Anto68

Which cable you used to connect airport express to digital 4 input?

Posted on: 04 April 2017 by Dr_J

Optical.

KR, J

Posted on: 04 April 2017 by Anto68

but I can't understand how you used the optical toslink cable because I don't see it available on apple airport, I see only one analog/digital audio jack , 2 ethernet port and 1 USB as well

Posted on: 04 April 2017 by ChrisSU
Anto68 posted:

Which cable you used to connect airport express to digital 4 input?

You need a 3.5mm mini jack plug on the Airport end, and a standard Toslink plug for the Naim end.

Posted on: 04 April 2017 by Dr_J

The AirPort 2nd gen 3.5mm port is analogous, and optical digital - must be as the optical Toslink cable works!

KR, J

Posted on: 04 April 2017 by Anto68

Ok, I am also interested in the airport express and am looking for the best way to connect it to my SU

this is the cable you are using?

Posted on: 04 April 2017 by Anto68

Sorry if I'm going off topic but for me it would be interesting to know if you get better quality by using an airport express for streaming music from laptop or just using bluetooth

Posted on: 04 April 2017 by Eloise
Anto68 posted:

Sorry if I'm going off topic but for me it would be interesting to know if you get better quality by using an airport express for streaming music from laptop or just using bluetooth

It depends ... AirPlay (via Airport Express) has the advantage of allowing lossless audio compression while Bluetooth only supports lossy compression (though supports aptX which is close to lossless if your laptop supports it).  But the levels of jitter via the Airport Express might mitigate any improvement from lossless vs lossy.

Posted on: 04 April 2017 by ChrisSU
Anto68 posted:

Sorry if I'm going off topic but for me it would be interesting to know if you get better quality by using an airport express for streaming music from laptop or just using bluetooth

If you're streaming from a laptop via Airport Express, the best sound quality would be using UPnP. Connect the AE to your streamer with an Ethernet cable, and put a UPnP server on your laptop. It'll sound a lot better than the optical connection, although that is fine for background listening and lossy streams.

Posted on: 04 April 2017 by Anto68
ChrisSU posted:
Anto68 posted:

Sorry if I'm going off topic but for me it would be interesting to know if you get better quality by using an airport express for streaming music from laptop or just using bluetooth

If you're streaming from a laptop via Airport Express, the best sound quality would be using UPnP. Connect the AE to your streamer with an Ethernet cable, and put a UPnP server on your laptop. It'll sound a lot better than the optical connection, although that is fine for background listening and lossy streams.

I already use minimserver to stream my music tracks; what I meant was to audio in general, today You Tube for example provides some good audio video performance although it seems strange but there are so many options to streaming music from laptop to Naim box as well as songs stored in the music folder

some time ago I started a discussion on this topic

https://forums.naimaudio.com/to...80#69285854789698580

in that video on you tube there seems to be no data loss even though of course there is compression