DCtoDaylight;406006 Wrote:
> Sorry, I'm just trying to make sure I understand what you're saying
> When you say:
>
>
>
> is that the THD of the power supply? or the THD of the output from the
> squeezebox? I suspect it's the power supply, but it's a bad idea to
> assume anything in the
c3p0;405951 Wrote:
> The Power Regenerator measures input and output voltage, voltage
> differential and input and output Total Harmonic distortion. I have
> also my own meter and had previously used another device to monitor my
> AC as I had concerns about its variablity.
Sorry, I'm just trying
The Power Regenerator measures input and output voltage, voltage
differential and input and output Total Harmonic distortion. I have
also my own meter and had previously used another device to monitor my
AC as I had concerns about its variablity.
If you look at page one of this thread the first e
c3p0;405938 Wrote:
> let me get thus right are you saying that the cheap standard AC-DC
> convertor plug in type is inert to all forms of Harmonic Noise on the
> AC?
Of course I'm not saying that. Read my post again, concentrate on the
last line.
How did you measure the THD numbers you quote?
radish;405923 Wrote:
> Without evidence I don't see why you expect that, cost doesn't always
> correlate to performance. The primary function of a wristwatch is to
> tell the time accurately. By that measure, a $5 digital watch will
> vastly outperform a $5000 Rolex. But of course, people don't b
c3p0;405881 Wrote:
> I was meaning that the low Power PSU's supplied by some manufactures are
> the small plug in ac_dc power convertors and since they are relatively
> cheap, it is not unreasonable to expect them to be less resistant to
> noise than the expensive power supply of your amp or cd p
this is most interesting...
What I'm not seeing is the link between the small levels of DC noise
apparently present, and audible differences to the music.
And especially differences described in terms other than increased
audible noise (i.e. reduced SNR).
Is there any evidence around this area
Here is an interesting article from Sound on Sound one of recording
industry Mags,Regarding Ac power and its problems in the recording
studio
http://www.soundonsound.com/sos/Jul03/articles/mainsproblems.asp
--
c3p0
c3p0'
radish;405878 Wrote:
> A does not follow from B. Yes, the noise-rejection characteristics of a
> PSU will vary depending on it's design and construction. But you then
> jump to asserting that a PSU which is "low power" will have worse
> noise-rejection than one which is "more expensive" and "bett
c3p0;405861 Wrote:
> So basiclly we are in agreement, noisy AC will give noisy DC, the level
> of that noise in the ouput is dependant upon the design, construction
> of the Power Supply and therefore we can expect the low power PSU's
> suplied with the likes of some phono stages, cheaper DACs an
So basiclly we are in agreement, noisy AC will give noisy DC, the level
of that noise in the ouput is dependant upon the design, construction
of the Power Supply and therefore we can expect the low power PSU's
suplied with the likes of some phono stages, cheaper DACs and the
Squeezebox to suffer o
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