DCtoDaylight;321951 Wrote:
Very true! Linn uses SMPS's in a lot of it's gear for example. If it's
done right, it has no detrimental effects. As I said earlier, it's all
about good design work.
Guys, I made my comment in the context of the thread subject, ie 'Does
the server have any
Nuuk;322012 Wrote:
Guys, I made my comment in the context of the thread subject, ie 'Does
the server have any influence on the music'. And I doubt that at the
price most PC PSU's sell for that they are done right. Therefore,
they may well be affecting the mains, and possibly accounting for a
Sorry, I think you miss-understand! I'm in full agreement with you! I
was just posting an example of good SMPS design.Dave
--
DCtoDaylight
Audiophile wish list: Zero Distortion, Infinite Signal to Noise Ratio,
and a Bandwidth from DC to Daylight
Nuuk;321173 Wrote:
I agree that power supply design is critical. And I think things have
changed quite a bit over the last ten years. It's now not uncommon to
have at least one piece of hi-fi using an SMPS, even more likely that
there is something using an SMPS somewhere in the same dwelling
Phil Leigh;321783 Wrote:
Not all SMPS's are bad... some are excellent. It's all down to the
design/implementation.
Agreed Phil, I didn't mean to give that impression. In fact there is
one powering my DAC as I type!
--
Nuuk
Phil Leigh;321783 Wrote:
Not all SMPS's are bad... some are excellent. It's all down to the
design/implementation.
Very true! Linn uses SMPS's in a lot of it's gear for example. If
it's done right, it has no detrimental effects. As I said earlier,
it's all about good design work.
--
DCtoDaylight;321103 Wrote:
But that's my point...
If they're well designed, they won't be susceptible to mains noise.
Very often I see amplifier circuit designs, which have very poor
rejection of supply noise. If the designer really feels that approach
gives the best sound, then he/she
DCtoDaylight;320767 Wrote:
For this to be valid, (and I know it is!) two designers have produced
bad designs. The guy's designing the switching supply in the PC
haven't properly blocked the RF radiating out of their design, and the
guy's designing the amp, dac, etc, haven't given their
Well, just to get serious again, my computer is not in the same room as
my stereo. I stream wireless to the SB3 via my router.
We can make a test where music is streamed via internet to another user
in another country, then we will see if its different.
--
Anne
Squeezebox 3 Stereovox XV2
Anne;321043 Wrote:
Well, just to get serious again, my computer is not in the same room as
my stereo. I stream wireless to the SB3 via my router.
We can make a test where music is streamed via internet to another user
in another country, then we will see if its different.
Ah but what
Phil Leigh;320817 Wrote:
Some pre-amps/amps are more susceptible to the mains than others -
depends how they are designed.
But that's my point...
If they're well designed, they won't be susceptible to mains noise.
Very often I see amplifier circuit designs, which have very poor
rejection of
pfarrell:
This is why real audiophiles put the computer with SqueezeCenter in
the
basement or otherwise far away from the serious listening area.
I will do that later.
--
eiret
eiret's Profile:
Anne;320400 Wrote:
I just cant take this anymore, I thought the tweaking party was over
with SC and Squeezeboks! Do we really have to experiment with PS Audio
Powerplants and online ups´, separate outlets etc. also on our
computers?
No you are missing the point - if you have a nasty big
Phil Leigh;320624 Wrote:
if you have a nasty big switching PSU in a PC that is dumping [EMAIL
PROTECTED] into
the mains it can get picked up by your amp, dac etc.
For this to be valid, (and I know it is!) two designers have produced
bad designs. The guy's designing the switching supply in
I just cant take this anymore, I thought the tweaking party was over
with SC and Squeezeboks! Do we really have to experiment with PS Audio
Powerplants and online ups´, separate outlets etc. also on our
computers?
--
Anne
Squeezebox 3 Stereovox XV2 Bryston B100-DA SST Martin Logan Aeon I
Anne wrote:
I just cant take this anymore, I thought the tweaking party was over
with SC and Squeezeboks! Do we really have to experiment with PS Audio
Powerplants and online ups´, separate outlets etc. also on our
computers?
You left some critical things out:
-- IDE vs SATA disks
-- 5400 RPM
And fan. If a noicy computer is in the listening room it has an audible
effect when playing at low volum...
I have an air turbulence noice with the fan that are driving air out of
the box.Not very high though, but i want to kill it. Without this fan
the computer whould be almost dead silent. Is
Pale Blue Ego;319096 Wrote:
The 384 RAM was destroying the sound. Your 128-MB stick of RAM was out
of balance with the 256-MB stick. Always use balanced pairs of RAM in
a music server. First rule of computer audio.
dh!!! thats brutal! You got me chuckling with that one!
--
sfraser
eiret wrote:
And fan. If a noicy computer is in the listening room it has an audible
effect when playing at low volum...
I have an air turbulence noice with the fan that are driving air out of
the box.Not very high though, but i want to kill it.
This is why real audiophiles put the computer
Slightly OT but relevant to the issue of PC PSU's, it is worth pointing
out that you can now buy much more efficient power supplies that are
between 80-90% efficient. In terms of power consumption, that can mean
that a PC uses around 1/5 less power.
An added advantage is that these efficient
Pale Blue Ego;319096 Wrote:
The 384 RAM was destroying the sound. Your 128-MB stick of RAM was out
of balance with the 256-MB stick. Always use balanced pairs of RAM in
a music server. First rule of computer audio.
A pity that my NAS has only unbalanced RAM :-)
Teus
--
Teus de Jong
I knew there was a explanation. :)
--
Kuben72
/Kuben72
Kuben72's Profile: http://forums.slimdevices.com/member.php?userid=15308
View this thread: http://forums.slimdevices.com/showthread.php?t=49763
Only possible explanation that I can think of is how much 'trash' the
CPU of the server machine puts onto the mains. If you want to try out
this theory, swap the PSU's over and see if you still notice the same
effect.
--
Nuuk
It is possible that you settings are slightly different on your new
install. Perhaps you how have automatic volume turned on ? (which would
make music play back louder and therefore sound better)
Or maybe you accidentally had bitrate limiting turned on before ?
--
andynormancx
Yes, it will.
It is not possible to switch PSU. They are completely different.
I have checked my settings on the new server but they are completely
the same. And I would be surprised if they where not since SC was
copied from the old to the new one.
The funny ting is that my wife didn't know I had switch
Kuben72;319144 Wrote:
The funny ting is that my wife didn't know I had switch servers and she
had noticed the same thing.
Hmm...in my experience, that kind of anecdotal evidence carries a lot
of weight. There may actually be something about the new server that
is affecting the sound, as
Pale Blue Ego;319174 Wrote:
Hmm...in my experience, that kind of anecdotal evidence carries a lot of
weight. There may actually be something about the new server that is
affecting the sound, as implausible as that would seem. Think about
everything that has changed, not just the server
Yes it could be a defect PSU, but since the server doesn't transcode the
music it is hard to believe that it could have any effect. But never the
less...
Actually the new server isn't pluged to the same powersupply as the old
one. Since I am still testing it I won't move it into my serverroom
Phil Leigh;319195 Wrote:
...The other possibility is that the PSU in the other PC was defective
and emitting cr*p into the mains - in which case plugging it back in
will degrade the sound...
If there in fact is a sonic difference here, then this noisy PSU idea
is most likely the culprit in
When I started on using Squeezeboxes I took an old pc with 384 MB RAM,
650 MHz P3 CPU and an old 120 GB Disk. Installed FreeNas with Slimnas
on it and away I was. At first I only used softsqueeze for testing an
to figure out if this was something for me. That was 6 months ago.
Today I have a
Kuben72 wrote:
How come the music sounds better just because the server is bigger? I
mean its not like it does anything but send the music to boxes. But
still it sounds better. Anyone had the same experience ?
Hawthorne effect
http://en.wikipedia.org/wiki/Hawthorne_effect
--
Pat Farrell
No. This is purely in ones head.
--
Phil Leigh
You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...SB3+Stontronics PSU - Altmann
JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC
V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103
Kuben72;319056 Wrote:
an old pc with 384 MB RAM..
The 384 RAM was destroying the sound. Your 128-MB stick of RAM was out
of balance with the 256-MB stick. Always use balanced pairs of RAM in a
music server. First rule of computer audio.
--
Pale Blue Ego
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