Depends how they are controlled.
Not be confused with the wall wart variety.
I have high hopes for them and so do many high end manufacturers.
The average, cheap, poorly designed switch mode PS is noisy. A well designed unit has low EMI radiation, a power factor approaching one and is compact and efficient. A darn good choice in my book.
Conventional power supplies work great in active speakers. The pro world has a number of spectacular active monitors. One example: http://vintageking.com/barefoot-sound-minimain12-pair
One advantage is the power supply can be precisely designed to match the speaker.
Gordon said: I have high hopes for them and so do many high end manufacturers.
I agree. They will get there, as will class D amps.
I heard these a while ago. I could live with this!
Attached files 
By the way the Minimain 12s are powered by Bryston amps.
Yup!
As I have often commented, there is a lot of high end audio in pro audio - and vice versa.
I never looked at it that way , but you are correct . I sent that where the XlR cables came from ??
Something about low loss or noise in a long distance .
Al d
XLR are balanced with one wire carrying the signal and a second wire carrying the signal in reverse phase. Noise coming on to the line effects both equally. When the out of phase signal is brought back into proper phase and combined with the other signal, the two in phase signals add to each other, but the noise is now out of phase and cancels out.
It is pretty cool.
Balanced was designed to carry sensitive signals long distances. XLR connectors are there as the lock into place. XLR cables are this perfect for microphone runs, etc.
Yes that’s cool very old school but effective . But when we use them for headphones it’s not the same . Also when we use them for interconnects . Am I right ?
It is exactly the same, as long as the components on each end of the cable are balanced. There are many balanced components available.
I know we don’t like Linn stuff too much, but the concept of streaming music to source equipment in the speakers has already arrived:
http://www.linn.co.uk/systems/see-the-range/klimax#speaker-summary
@stereophilus
Sure, meridian and others too.
They either cost a fortune or compete with Bose for SQ.
Not what I’m after.
Linn is not a 4 letter word, by the way. :))
@gordon 
You are right, I wouldn’t buy any of them… What if one resistor gave up? Organise return of the speakers to the dealer/distributor? Disaster. And costly.
I understand you are keen to DIY on your source, but if you have an inclination towards this, I think you owe it to yourself to see what is already out there with something like tweaked NAS -> Sonore Rendu -> PWD via i2s. Jesus may help out in this regard.
@stereophilus
Yes I’ve had many chats with J.
My rig sounds great at the moment so adding more stuff is just stuff, for now.
I think a modular set up would work and at worst a local audio store could remove an am etc if there was a problem. I would just like to experiment with something NEW. With less ext cables and boxes.
Who knows where it will lead. It’s just a hobby.
Gordon said: I would just like to experiment with something NEW. With less ext cables and boxes.
Interestingly, there is at least as much experimentation with such systems as with more conventional setups.
Those I know who have gone all digital to speakers spend as much time tweaking the digital input as others play with cables, alternate preamps, etc.
I have not been that impressed with the sound, but I also do not like the sound of digital room treatment software. I do not know where the problem lies as there is no reason a fully digital active speaker could not sound superb. It may well be I do not care for the individual setups.
As an observation, I find that those who like digital room correction systems and lots of digital tend to prefer precision of soundstage, imaging, detail and power over other sound attributes.
Elk said: prefer precision of soundstage, imaging, detail and power over other sound attributes.
Well, at the end of the day, aren't they all important to enjoyment of the listening?
Example, last night I just happened to put on Erykah's Live album and the SQ was great and enticed me to take a seat in the sweet spot and enjoy the whole album.
Often my eyes were closed and I marveled at the depth, placement and articulation of every player, as I listened to the MUSIC.
At the end, I also saluted the sound engineers for participating in the delivery of the EVENT.
So, SQ, Stage, Timbre, Placement, Room Depth not to mention a rather stellar performance by the artist and engineers made it all happen.
Doh. Which one did you say was less important to a digital hound?
I think that "gear-sluts" tend to describe the aforementioned perhaps a bit more loudly but they are merely
describing a part of the experience that only higher end equipment can ameliorate.
Gordon said: Well, at the end of the day, aren't they all important to enjoyment of the listening?
Not necessarily.
I find many digital aficionados to value precision, detail, soundstage and image over timbre, microdynamics, etc. I find the later vastly more important. I will happily give up imaging and a close-mic'd singer's lip-smacking for timbre and accuracy of expression.
Additionally, soundstage and imaging are artifacts of the recording process, particularly multi-mic'd recordings such as the album you reference. Her group never sounded like what is on the recording, even if the individual musician's performances are accurately captured.
There is nothing wrong with enjoying this, but for me recreating the sounds of the real world are vastly more satisfying than reveling in the artifice. YMMV
@elk
As I do understand with your statement and agree with it mostly. This is precisely why I do not consider myself an audiofile . Even though I have heard many live bands, concerts. I never had the the ability to pick out what was real. ill bet I would be right most of the time, but never to speak of convincely like you. So what I have left is lips, chairs , echo of studio and so on. maybe I just do not try hard enough lol. please excuse some of my spelling.
All that matters is that you enjoy the music!
(Your spelling is not a problem. You do very well with English, an incredibly hard language. 
)
But I was born here, its just not cool. For me to type and make sense I need an ipad for spelling. And a thesaurus too. :bz
Other forums are much less sophisticated in literary format than here. But the info here is great so I will keep trying.
AL D