adamdea;577147 Wrote:
> I haven't tried out the modded audiocom XDAC without the XPSU but am
> tempted to experiment now. I have always found it as bit odd that it
> only steps down 240VAC to 24 VAC, as I would have assumed that the
> point of an external PSU would be to keep to AC/DC conversion
Phil Leigh;577047 Wrote:
> Agree with all of that. Having owned a Linn CD12 (gulp) I feel
> reasonably well placed to conclude that the Touch can outperform ANY
> cd-spinner as a pure transport.
> And that's without spending thousands on machines to grind the edge of
> the discs, zap them with ul
JohnSwenson;577067 Wrote:
> The original question was about a TVC - a Transformer Volume Control.
> Its a transformer with multiple taps and a switch used to select the
> appropriate tap. Some people like to use these as volume controls. They
> do exist and quite a few people buy them.
>
> My i
Waldo Pepper;576817 Wrote:
>
>
> I have never seen a modern amp with signal transformers in their audio
> path.
The original question was about a TVC - a Transformer Volume Control.
Its a transformer with multiple taps and a switch used to select the
appropriate tap. Some people like to use th
adamdea;577044 Wrote:
> Very kind of you, thanks, but I will pass for now. I have just got my
> Touch back after audioupgrades fitted the second clock (and connected
> the first clock which they had actually not connected- the 44.1/88.2
> was still coming from the stock oscillator.) I am not touc
Phil Leigh;576971 Wrote:
> I don't know about veils lifting... but it does sound good. Must do an
> AudioDiff test @ the weekend. Can't trust the olde ears/brain. An A/B
> shows a definite difference at the top end of vocals and cymbals -
> seems to take away a slight "tizziness". Of course it mi
adamdea;576814 Wrote:
> Good idea. Mind you, an xpsu tweak is all I need. Just when I thought my
> audiophilia nervosa was easing. If you so much as think about veils
> lifting...
I don't know about veils lifting... but it does sound good. Must do an
AudioDiff test @ the weekend. Can't trust the
Waldo Pepper;576818 Wrote:
> Stereo means the buffer amps and DACs run on seperate turns of the
> transformer. Nice on paper but as the whole circuits draw such little
> power - four simple linear regs would do the same off a single turn.
> Nice marketing!
>
> Power amps however do need separate
Phil Leigh;576728 Wrote:
> The PSU transformer for my DAC+Buffer amp has 4 seperate secondary
> windings...
>
> I've just snubbed two of them (330ohm+0.02uF polyprops)
> Will try comparative listening later...
Stereo means the buffer amps and DACs run on seperate turns of the
transformer. Nice
JohnSwenson;576105 Wrote:
>
>
> Do NOT try this for signal carrying transformers. They have resonances
> too, but dealing with them in such a way as to not muck up the audio
> signal is not trivial. Most good audio designers will have already
> dealt with the resonances in an audio transformer,
Phil Leigh;576728 Wrote:
> The PSU transformer for my DAC+Buffer amp has 4 seperate secondary
> windings...
>
> I've just snubbed two of them (330ohm+0.02uF polyprops)
> Will try comparative listening later...
Good idea. Mind you, an xpsu tweak is all I need. Just when I thought
my audiophilia
The PSU transformer for my DAC has 4 seperate secondary windings...
I've just snubbed two of them (330ohm+0.02uF polyprops)
Will try comparative listening later...
--
Phil Leigh
You want to see the signal path BEFORE it gets onto a CD/vinyl...it
ain't what you'd call minimal...
Touch(wired/XP
Phil Leigh;576253 Wrote:
> Linn gear that has ultra-high quality SMPS such as pre-amps, CD players,
> Tuners etc are indeed unchanged to my ears by mains leads (that I have
> tried). For example, Nordost Valhalla made no difference over the stock
> mains lead.
>
> However, Power amps do seem to
Waldo Pepper;576189 Wrote:
> Just a few observations...
>
> If you have decent kit (Linn, Naim etc) then the power cord will make
> no difference whatsoever as the PSU will have a decent design to reject
> mains born noise. Linear voltage regulators internal to the amp can
> remove noise on the
Just a few observations...
If you have decent kit (Linn, Naim etc) then the power cord will make
no difference whatsoever as the PSU will have a decent design to reject
mains born noise. Linear voltage regulators internal to the amp can
remove noise on the input.
A good switching power supply wo
JohnSwenson;576105 Wrote:
> Damping the transformer takes a resistor and a capacitor in series,
> connected across the secondary of the transformer. Theoretically you
> should measure the transformer and compute the right value for that
> particular transformer. I did that for every transformer i
adamdea;575632 Wrote:
> Absolutely
> 1 As a matter of interest how easy is it to damp the resonances in a
> transformer? It seems from what you say to be something we should all
> consider doing if possible. Would this apply to a TVC? I use a large c
> core tvc as my pre amp and am very intrigued
Well, me asking for this not to turn into an arguement about power cords
has well and truly gone out the window. But, I must say, the opinions I
have just read are the best I have ever seen on the discussion of power
cords. Excellent.
--
Flashgordon400
--
wildgoose;575749 Wrote:
> Pardon my ignorance. Are we saying with a low-end power-cord, the Touch
> can potentially output the wrong 0s and 1s? Or are we talking about
> amplifiers/receivers?
>
> Are there checksums in the SPDIF signal? What happens IF some of the 1s
> and 0s do get flipped?
>
Pardon my ignorance. Are we saying with a low-end power-cord, the Touch
can potentially output the wrong 0s and 1s? Or are we talking about
amplifiers/receivers?
Are there checksums in the SPDIF signal? What happens IF some of the 1s
and 0s do get flipped?
For video, since the signal is compress
JohnSwenson;575586 Wrote:
> My take is that I HAVE been able to hear differences in power cords, and
> I have been able to measure something which seems to have a decent
> correlation to those subjective observations (transformer ringing).
> What I have NOT been able to do is find any decent corr
My take is that I HAVE been able to hear differences in power cords, and
I have been able to measure something which seems to have a decent
correlation to those subjective observations (transformer ringing).
What I have NOT been able to do is find any decent correlation with the
price of said cord
adamdea;575513 Wrote:
> Very intriguing. I was under the impression that the measurement school
> more often argue that their measurements demonstrate the absence of a
> genuine difference resulting from subjectivist endorsed tweaks. Or to
> put it another way, it is more often subjectivists who
Goodsounds;575499 Wrote:
> You've fallen into the argument abyss of the engineering/analytical
> types vs the subjectivists. There's no common ground for discussion,
> it's pointless.
>
> People who calculate and analyze often cannot accept that a measurement
> or theoretical difference doesn't
You've fallen into the argument abyss of the engineering/analytical
types vs the subjectivists. There's no common ground for discussion,
it's pointless.
People who calculate and analyze often cannot accept that a measurement
or theoretical difference doesn't translate into a perception
difference
Take a look at this article, this is what got me looking at this subject
in detail:
http://www.hagtech.com/pdf/snubber.pdf
Let me get this straight, you do not believe that transformers have
resonances? Ok so lets go over a few simple questions. What is a
transformer? Its two coils of wire. What
KingKong;575267 Wrote:
> Only if you want to look like a complete moron. I find it wholly ironic
> that your avatar claims "No BS" and yet you fell for a load of it.
>
> Virtually everything you've quoted is complete nonsense and has no
> basis in reality. If JohnSwenson has done so many measure
Hi King, and welcome to the forum! Thank you for a most enlightening
first post! Can I quote you on other audio fora?
--
konut
konut's Profile: http://forums.slimdevices.com/member.php?userid=1596
View this thread: http://
JohnSwenson;574856 Wrote:
> While I agree that some of these prices are ridiculous, this argument is
> not a very good one. This is assuming that the only thing a power cord
> can affect is what is coming in from the wall into the device.
> Frequently this is not the case.
>
> I have done a lot
mlsstl;574968 Wrote:
> A lot of the skepticism is created by those who declare "huge"
> differences with these types of changes. I realize some get
> enthusiastic about such things, but for me, a "huge" change in sound
> quality is moving from a table radio or a boom box to a good system. Agreed.
A lot of the skepticism is created by those who declare "huge"
differences with these types of changes. I realize some get
enthusiastic about such things, but for me, a "huge" change in sound
quality is moving from a table radio or a boom box to a good system.
With over 40 years in this hobby (a
I know I am treading on thin ice here, but I can't resist mentioning
that I believe there have been (proper published peer reviewed) studies
on acupuncture which showed that it might make a difference to the
perception of pain. This was seized on by practitioners as proof of the
efficacy of the re
Great explanation John, iti s nice to read from someone who knows
electronics and can measure the difference powercables can make in
certain circumstances.
In some cases I can hear the difference cables make in systems and the
typical blunt solderhead's response that it is all just imagination
bec
andynormancx;574834 Wrote:
> How exactly do you think a magically bit of mains wire can improve the
> sound of your system ? What about all the non magic wire in your walls
> and all the way back to the power generating stations ?
While I agree that some of these prices are ridiculous, this argu
andynormancx;574834 Wrote:
> How exactly do you think a magically bit of mains wire can improve the
> sound of your system ? What about all the non magic wire in your walls
> and all the way back to the power generating stations ?
+1 Exactly
So you didn't read their printed material or check th
andynormancx;574834 Wrote:
> How exactly do you think a magically bit of mains wire can improve the
> sound of your system ? What about all the non magic wire in your walls
> and all the way back to the power generating stations ?
It's magic - just accept it :-)
--
Phil Leigh
You want to see
How exactly do you think a magically bit of mains wire can improve the
sound of your system ? What about all the non magic wire in your walls
and all the way back to the power generating stations ?
--
andynormancx
Yes, it will. Yes, all of them. Yes, SoftSqueeze as well. What ?
I SAID ALL OF T
the multiway was purchased to plug my Arcam AV8/P7/DV29 and Blue-ray
into but I havent installed it yet at £100 s/h. The Isotek was taken
from my existing CD player and was s/h at £80. As I said, it wasnt a
praticle solution but an experiment with items to hand. No, it wouldnt
be worth paying for
A £300 power lead and a £300 multi way extension block (that doesn't
come with a lead), there really are some geniuses out there aren't
there ;)
--
andynormancx
Yes, it will. Yes, all of them. Yes, SoftSqueeze as well. What ?
I SAID ALL OF THEM !
---
I did do some research on using batteries and the Sigma 11 is reconed to
be quieter than some batteries. Batteries can supposedly, from chemical
reaction, give noise from that process. Batteries didnt seem like a
good long term practical idea.
--
Flashgordon400
-
To conclude the previous comments about A power cord having an effect on
the Touch I had purchased an Isotek Multiway and have an Isotek Optimum
pluged into my CD player, I tried the Touch power supply pluged into
both on there own. Yes it was a cleaner sound. Yes I know it's not
realistic having
Man, wish I could remember Robb. I got mine from the local Radio Shack
after seeing specs online. Google something like squeezebox power
connector size mm . I couldn't find anything too conclusive looking
through those search results quickly though. I think it was around $2
for a pack of two,
Have you checked Mouser or Digikey or Farnell?
--
m1abrams
m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850
View this thread: http://forums.slimdevices.com/showthread.php?t=78938
___
Sorry that this may be the wrong forum, but this thread is getting at my
question.
I have found that a linear power supply does provide a noticeable sound
improvement on my SB Duet Receiver. Unfortunately, I cannot find the
correct size connector anywhere. I am not sure what size connector
plug
Hi Flash, Power cords on transports can make huge changes on the sound,
and I have found on my SB3 that various power supplies change the sound
even when using the digital out into a Genesis digital lens performing
buffering and re-clocking. In my case, since I am buffering the
digital out, I ima
Also have to resist some urge...
For no compromise, try battery supply.
I don't know if there is something established to get 5V, either a
linear regulator, or 4*1.2V NiMH cells will get you close.
Only loosely related praise: I've measured the digital out of the SBT,
and can say it's the best I
LOL, sounds like you've been there before.
Thanks for your advice. The only reason I asked is because the noise
floor when the music is very quiet seems to be zero as is. I will give
it a try. See if I can squeeze the last little bit of quality out of
what to me is an amazing device already.
-
must resist urge
To answer your question yes assume it has the same power requirements
as a CD Player.
--
m1abrams
m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850
View this thread: http://forum
As a big believer and user of high quality power cords for the rest of
my HiFi / AV system, my question is, would a descent power corded
socket make any difference to a device that produces Zero's and One's
as a signal. This is not an invite for a debate about power cords. Done
that and got shot d
49 matches
Mail list logo
