Is streaming 24-192 by wireless possibile?

On a Uniti2, yes it is with a couple of considerations. The Uniti2 supports 802.11b and 802.11g wifi protocols.   192/24 FLAC varies in data bandwidth but will be around 7 to 8 Mbps. If you are using 802.11g with  good signal strength, not much else on your wireless network, and non crowded spectrum in your house/neighbours you should be fine. However 802.11b tends to peak out at around 5 to 6 Mbps and so very unlikely  to support 192/24 FLAC.

Your Wifi access point will most likely choose whether it uses 802.11b or 8012.11g within its admin setup

Simon

I thank you a lot Simon, grazie.

Before I used power line but reading your post on healthy risks I decided to move to wireless that seems have not appreciable effects on SQ if the transmission works fine.

The wireless network is based on a integrated modem/router/wireless then not good enought for the use I need.

Aanyone would suggest me a device with a good wireless strength?

Thank you AllenB, very interesting, then Uniti is so linked by wire, good suggestion. I will explore this Airport Extreme specifications.

Hi depending on your house layout, you could create two separately wired LANs - with one nearby your audio equipment - and use two Airport Expresses to connect between them in point to point or infrastructure mode. (from memory these devices can support this I think  - but if not you can set up in a regular mode but best not connect anything else to that specific wifi SSID).

This could allow you to site the access points in clear space around 2m from the floor allowing the antennas to work most efficiently. You might be pleased how much the wifi improves when you optimally position the APs. APs with wire all around stuck in a corner on a desk are never going to be optimal. It is worth siting the main AP like this anyway even if you still directly connect thru to the Naim

Simon

What is "infrastructure mode"?

Simon, you are better than an oracle!

I previously ethernet wired my NDS to enable 24/192 streaming following buffering drop outs.

I have recently added a Superuniti as part of my second system and given the extreme difficulty in cabling to this, I was resigned to using a USB stick for 24/192 files. However, given that I have an Airport Express used as a wifi extender from my Airport Extreme in the room where the second system is, I thought I would experiment with ethernet cabling to the Airport Express port and lo and behold it has worked perfectly to date on 24/192 files with no dropouts whatsoever.

Distance from Extreme to Express is only about 5 metres and I can only put the result down to the Express amplifying the signal but people with more tech knowledge than me will no doubt have a fuller explanation.

Very interesting experience Camlan.
I think this topic become very useful to a lot of users.
Recently some post arises on which is the best wired (with switch, shielding and so on) configuration on which all of us agree.
By the way there are users (temporarily or not) that need to go wireless.
This option is also supposed to be used by Naim (as was previously an option and now a default in Uniti series).
The idea of Simon to have a separate wifi with mac filter allowing only Uniti to be connected is very good allowing to use all bandwidth only to one device (the streamer).
On the other side the limit is the poor strength of wireless signal on which your direct experience helps to select a good device.
Any more help is appreciated.

Yes I use the recommended switch configuration following guidance from Mike B and it works very well.

Just to add, the Superuniti needs to be cabled to the Express. If not I still get dropouts so the difference is in the cabling and not the proximity of the Express.

There is no really mystique in networking. I am attaching a simple article that covers all the basics of home networking including all the wifi standards. As you should see, current wifi standards will easily accommodate the current highest density of audio you can throw at it with one proviso: the transmitting and receiving devices must have the capability of handling the target speeds i.e. the slowest device wins. As it says in the article, the fastest wifi standards can now outperform fast ethernet but only up to approximately 30 feet. And as there has been much discussion about switches and hubs, there is also a very nice explanation in there as well. Hope this helps.

http://www.cnet.com/how-to/hom...res-the-url-for-you/

Hmmm... so better turn all mobile phones off as well since they're 85dBm stronger (that's about 338 million times) than PLC and since the signal from a wifi access point it about 75dBm (that's something like 33 million times) stronger than from PLC you had better turn everything wifi off as well. Maybe get your next door neighbour to turn their wifi and mobile phones off just to be on the safe side. Also the frequencies used for are only up to 200MHz which is non-ionising. Compared to 2.4GHz from wifi or the 2.6GHz for 4G which are near the frequencies used by a microwave oven and you actually hold the mobile phone against your head!!

Exactamundo! As I posted elsewhere on this site, we are throwing enormous amounts of data over the airwaves every second of every day and unless you live in a lead lined room you're being zapped right now. The assembling and disassembling of the data for our musical instruments is the prime concern for Naim users. Shortening and shielding the hardware from RF interference in analogue output is our prime and possibly only concern in terms of conversion of the data. Other than being cheesed off this morning with my Muso intermittently being disconnected from the wifi, requiring a reboot of the MacBook Air, for God knows what reason, the bits arrive as they resided on the host. 

Perhaps you need to consider PLC, Powerline then? ;-) Signal considerably lower than wifi and, normally, a higher throughput ;-) I get a rock steady 50meg throughput with powerline in my house but wifi is at best 30meg (throughput I mean) and that's only if in the same room as the router!

According to Naim's website Uniti 2 does support 802.11N.

No not really - the EM radiation field strength over distance is inversely exponentially proportional to the frequency... Power line adapters work typically between 3MHz and 30MHz or occasionally higher... This is a world away from 900MHz / 1.8 GHz used for GSM let alone the ISM bands around 2.4GHz and 5GHz used for wifi....

The other issue of ethernet over mains, is that because of the wavelengths concerned it can often turn your  house domestic wiring into an antenna in which you are resident....

The power density is small but is over wide spectrum with respect to the wavelengths - and so the average power density is higher than I would be comfortable with..

Anyway these devices are currently legal - and I have discussed this before on the forum - I simply wanted to correct the above misunderstanding on relationship of field strength propagation and wavelength.. So its down to choice.. I certainly won't have them in my house, and I have had Ofcom previously remove excessive radiating devices within .5 mile radius of my home... but I believe some of the newer PLA chipsets may be  better behaved with respect to excessive radiation.. so if they don't interfere with me and my family its up to people to decide what radiation they are happy to coexist with in their house.

S

Indeed you are right - I am sure I looked this up yesterday and only said b and g - but no - it does say n as well - which is a significantly more capable standard to use than b and even g.

S

!

It was not before.

From web: "Wi-Fi (802.11 b/g or n at 2.4GHz), F type (plus PAL adapter)"

Someone from Naim can help to confirm if "n" is supported and if was also before (my Uniti2 just bought in September can be eventually upgraded?).

Its when the Wifi does a specific point to point connection between access points.. however I just have checked my Airport Expess and it doesn't appear to explicitly offer this.

Simon

The Apple products seem particularly adept at 'extending' the wifi within a home, vs. what the common 'wifi' booster does.  I'm not sure exactly what they do, but it works very well.

A Time Capsule is merely an Airport Extreme plus a hard drive and some more software to drive it.  With a second Airport Extreme set to 'extend' the wifi network, good coverage and throughput is attained in my home.  But I've not tried to stream music through it either; I have ethernet cable in my walls.  But Netflix streaming works quite well via wifi.

Note that a wifi repeater will half your wifi throughput/speed. So if this is 11g (or even 11n) and you're on the edge speed wise then adding a repeater might cut your effective throughput down to below what you need.

I would start the day with thanks All for the interesting contributions, it give me a lot to think on.
I must say that for test I just replug yesterday evening only 2 powerline that has given back a very stable connection.
I'm looking to new models, that seems are "green", just 4W max power and automatic switch off when not used. If someone will connect wired only the Naim, we get "radiated" only when streaming... If I'm Correct.

You mean powerline as in PLC/Homeplug/Networking down the mains or powerline as in expensive IEC main leads.

If you mean PLC yes they would only 'radiate' when sending data and, if being 'green' is an issue they are VERY 'green' ;-)

The output power from PLC devices is -55dBm and 99% of that is directed down the mains wires. The amount that gets into the air is a tiny fraction of that and, as I say, this is hundreds of millions times smaller than wifi or a mobile phone as it is.

btw the if you want to make PLC work better then try to make sure there are no horrible SMP's (plug top switch power supplies) plugged in nearby because they upset them. This says something in itself because the noise from a switch mode power supply is of the same order of magnitude as that from homeplug!

a bad but complaint SMPS would typically be at least 1/100 and typically less than that of the noise emissions from a functioning PLT!

http://www.compliance-club.com...MCJ%20Issue%2080.pdf

To quote -55dBm power you are limiting yourself to a 9kHz bandwidth which is common for EMC measurements. PLT works between 3Mhz and at least 30 MHz and the newer ones go a lot higher - that's lots of blocks of 9kHz. Therefore expect to see power output of at least -10 to 0dBm... Then couple the radiated field strength dB (uV/m) values for the frequencies concerned - then you can see perhaps why I am weary in domestic setting with v.close proximity to mains appliances / reading lamps etc - but am more happy with wifi and mobiles with sensible usage.

S

My ND5XS is cabled to an Apple Airport Express that acts as a wireless bridge to my Airport Extreme, using n band at 5ghz. Extreme is about 4 meters away from the AE, clear space between them. Apple AirPort says I get around 200 mb/s at the bridge end, sometimes 300 mb/s. With this set up I can successfully stream 24/96 WAV and 24/192 FLAC or ALAC all the time and 24/192 WAV sometimes (I guess depending on interferences and/or network traffic). It's an easy set up and works very well, apart from the 24/192 WAV limitations.

Very interesting.  According to my experiment about a year ago, I believe that the wireless network adaptor carried by uniti2 does not support 24/192, for there will be dropouts now and then even if the AP is right next to the uniti2.  I was very disappoionted and set a max 24/96 in Asset even if the music file was 24/192.

The reason that I did not turn to powerline adaptor was that most people in the forum seemed to dislike it for some unknown reason.  And above all, as some might have mentioned, the uniti series perform much better in internet radio while connected wirelessly than wired.

Recently my wilreless signal becomes quite unstable for some unknown reason. The quality/strenth indicator would drop suddenly to 0 without any noticeable change in the environment.  Thus the usually stable cd quality streaming are facing more and more dropouts and the uniti two would sometimes lose connection with Asset.

My uniti2 is about 5 meters from the wireless router and there is a wall between them.  I then tried different ways using a tp-link portable router/AP, including using it as an extender/repeater/bridge/client, etc.  Yet none worked very well.

Now suggested by this thread I have turned all my i-devices to 5G band, leaving the uniti as the only client in 2.4G.  Signal indicators do seem to increase, yet still unstable. I will test this for several days to see if I should keep it or turn to the airport extreme solution.

Liu

I'm glad to inform you that also my Uniti2 (without bluetooth) is "n".
But I need anyway a 24db antenna as signal strength is still low.