PDA

View Full Version : isolation/clean AC



Phillip Kerman
2004-08-28, 20:04
In the Wired or Wireless thread a while back Ken concluded that the SB
worked as good as a good CD transport when it was plugged into a iso-bar
isolation powerstrip. I'm not exactly what this is.

I have a pretty decent set up now but am just plugging everything (receiver
and SB) into an UPS. I've seen a ton of audiophile devices that clean the
power--but I'm not sure what direction to go.

For example:
http://www.psaudio.com/products/ultimate_outlet.asp
http://www.psaudio.com/products/humbusterac.asp

http://www.monstercable.com/computer/productPageComputer.asp?pin=2180
http://www.monstercable.com/power/productPagePower.asp?pin=1900


And so on and so on!

Any suggestions what to try. I find that there's amost a hiss in my set up
now.

Thanks,
Phillip

Michel Fombellida
2004-08-29, 06:15
I am using a Shunyata Hydra8, it is really excellent. I'll soon also replace
the stock wall-wart by a home made linear linear power supply.

Michel

Michel Fombellida
2004-08-29, 12:28
There are many different type of devices, you mentioned the PSAUDIO, this one
is an active device that will regenerate a sine wave (110V or 230V depending on
your location) from scratch, it is supposed to remove noise from the line and
also remove any fluctuations. The Shunyata Hydra that I use is a passive device
that will clean the signal (very efficient especially on digital devices in my
experience), then you have tons of alternatives going from all sorts of filters
(every manufacturers have their own solution) to simple but good quality
multiple power sockets. Look there http://www.russandrews.com/ for some example
of what could be done (under the menu "Mains"). Even power cables can make a
difference but of course your system will have to be able to reveal these
changes... note that I also tried various devices that had no impacts at all...

Michel

ron thigpen
2004-08-30, 09:17
Phillip Kerman wrote:

> In the Wired or Wireless thread a while back Ken concluded that the SB
> worked as good as a good CD transport when it was plugged into a iso-bar
> isolation powerstrip. I'm not exactly what this is.

The isobar is just a line of surge suppressors from the TrippLite
corporation. AFAIKT, they are just passive surge suppression devices of
typical design with relatively high quality of construction. Not sold
for filtering.

<http://www.tripplite.com/products/suppressors/isobar.cfm>

I use a Brickwall surge suppressor. They are of a different internal
design and do offer some filtering.

<http://www.pricewheeler.com/>

Clean power and power supply upgrades are popular DAC upgrades in the
audiophile community. There is no doubt a lot of hype and even blatant
snake oil, but there are also a lot of people who purport to hear
differences. From what I understand about the D/A conversion process,
it makes sense that rock steady voltages and deep current reserves could
make a real difference in the fidelity of the resulting analog signal.

I think a reasonable audiophile SB tweak to try would be an upgraded
power supply. Something with tight voltage tolerances and overrated
current capabilities. Maybe Sean could provide some guidance on how the
stock unit was spec'd and what we should look for when trialing
uprated units. If good results are found, could be a product
opportunity for SlimDevices.

--rt

Bruce Prager
2004-08-30, 10:04
The isobar series IS sold for filtering, in fact its one of its major
features. It features full noise suppression, staged in increasing degrees
as you go up the bank of outlets. It not only supresses noise coming in,
but suppresses it within the surge protecter itself, outlet to outlet.
I highly recommend it not only for its surge capability which is
considerable, but for protection from noise for both audio and video
equipment.

I have several home automation devices that can attest to its filtering
capacity, as they cannot be used in any outlet of a Isobar strip, but can be
used in most standard surge/noise protection strips.

Its not the equivalent of dedicated AV noise suppression systems, but then
it doesn't cost anywhere that amount and is only a fraction of the size of
such systems.
----- Original Message -----
From: "ron thigpen" <ron (AT) fuzzsonic (DOT) com>
To: "Slim Devices Discussion" <discuss (AT) lists (DOT) slimdevices.com>
Sent: Monday, August 30, 2004 12:17 PM
Subject: [slim] isolation/clean AC


> Phillip Kerman wrote:
>
> > In the Wired or Wireless thread a while back Ken concluded that the SB
> > worked as good as a good CD transport when it was plugged into a iso-bar
> > isolation powerstrip. I'm not exactly what this is.
>
> The isobar is just a line of surge suppressors from the TrippLite
> corporation. AFAIKT, they are just passive surge suppression devices of
> typical design with relatively high quality of construction. Not sold
> for filtering.
>
> <http://www.tripplite.com/products/suppressors/isobar.cfm>
>
> I use a Brickwall surge suppressor. They are of a different internal
> design and do offer some filtering.
>
> <http://www.pricewheeler.com/>
>
> Clean power and power supply upgrades are popular DAC upgrades in the
> audiophile community. There is no doubt a lot of hype and even blatant
> snake oil, but there are also a lot of people who purport to hear
> differences. From what I understand about the D/A conversion process,
> it makes sense that rock steady voltages and deep current reserves could
> make a real difference in the fidelity of the resulting analog signal.
>
> I think a reasonable audiophile SB tweak to try would be an upgraded
> power supply. Something with tight voltage tolerances and overrated
> current capabilities. Maybe Sean could provide some guidance on how the
> stock unit was spec'd and what we should look for when trialing
> uprated units. If good results are found, could be a product
> opportunity for SlimDevices.
>
> --rt
>

ron thigpen
2004-08-30, 12:02
Bruce Prager wrote:

> The isobar series IS sold for filtering, in fact its one of its major
> features. It features full noise suppression, staged in increasing degrees
> as you go up the bank of outlets. It not only supresses noise coming in,
> but suppresses it within the surge protecter itself, outlet to outlet.
> I highly recommend it not only for its surge capability which is
> considerable, but for protection from noise for both audio and video
> equipment.

You're right, my mistake in skimming the marketing lit too quickly.

--rt