I purchased a 5V 1A linear power supply to evaluate the difference
between stock and upgraded ps on my SB3. I popped open the stock ps and
it seems to be quite well built. The aftermarket ps has a less involved
circuitry but a considerably larger transformer.
I am very familiar with the
boxercup;166630 Wrote:
I purchased a 5V 1A linear power supply to evaluate the difference
between stock and upgraded ps on my SB3...most of the difference in the
presence is due to the output level of the SB3 being down slightly...
At 1A, do you think that may be a bit low for the SB? Is it
I don't know how many of you folks are aware of it, but not all linear
regulators are created equal. An ideal regulated power supply should
look to the load like an ideal voltage source. That means it should
supply any amount of current required to maintain the constant voltage,
regardless of
tyler_durden;164500 Wrote:
The cable length matters. Wire is inductance and resistance... As with
speaker cables and interconnects, however, the 2 or 3 feet used to
connect to your SB3 won't have any practical effect.
Thanks for the clarification. I would prefer to have the regs in the
Skunk;164487 Wrote:
Wouldn't you need 3, one externally and one each for 5v and 9v analog,
to _really_ see if a linear supply matters? At any rate I wish I had
your ability to build from schematics.
A single super regulator will get you most of the way there. The DAC's
5V rail is the most
Can anyone please explain why a linear PS should give better sound?
What is the technical difference?
Is the difference in sound quality significant even for a SqBox 3 with
up to 192 bits MP3 files?
Thanks.
Svein-Helge
--
shlea
shlea;164196 Wrote:
Can anyone please explain why a linear PS should give better sound?
What is the technical difference?
Is the difference in sound quality significant even for a SqBox 3 with
up to 192 bits MP3 files?
Thanks.
Svein-Helge
Opinions vary. It is possible to make
Skunk;163990 Wrote:
There's not much point in using a 3 amp supply with the Radioshack type
N, because it's only rated for 1 amp. Thanks Richidoo, for raising this
point in another thread.
Got a link for that thread?
By all means, use a Switchcraft plug if you have them available at the
aybee;164252 Wrote:
Yup 'my' CPC units are both Stontronics, both ran hot and the first one
(which lasted the longest don't forget) gave off a smell at first.
Having read that old thread I may break one open just to see what is
inside.
Alan
Alan - v interesting - if you do break one
...and I've just smelt it (having read your post again). It seems OK.
I'm guessing there's not much more than a x-former, caps, a reg, diodes
and a one-shot thermal fuse in there...
According to the manufacturers, these things are designed to be used in
schools and similar places - so you'd
shlea;164196 Wrote:
Can anyone please explain why a linear PS should give better sound?
Svein-Helge
Some people think they hear a difference when using a linear regulated
supply.
Others, such as myself, perceive no difference.
The audio circuits inside the SB3 are powered from a DC-DC
ddden;164222 Wrote:
Got a link for that thread?
No, but a search for 'power supply' should do the trick.
The RatShack plug is not exactly beefy, but I would be 'shocked' :) if
the relatively short connection would not conduct more than 1A in short
bursts without melting. . .which would
Thanks for the pic. :)
Yes, the RatShack connector is a flimsy POS. I believe those were my
exact words as I struggled to attach the wires to it without breaking
the tabs.
The Switchcraft(part no. 760?)is less than $5. . .$3.08, but Digikey
has a $5 handling fee on orders less than $25, so
http://www.slimdevices.com/pi_squeezebox.html
Power input
* 5.0V DC, regulated
* Center positive, sleeve ground
* Connector: 2.5mm ID, 5.5mm OD, 11mm long
* Min supply rating: 1000mA
Switchcraft makes some DC plugs.
http://www.switchcraft.com/products/jack-146.html
Skunk;163194 Wrote:
I am aware of no such beast. The cheapest plug/play would be the modded
elpac by Bolder, and I believe one of the mods is change the DC
connector, so the stock elpac is out.
You sound like you want to go about this by the book when stating your
default position is
Sorry - I keep forgetting about that!
--
Phil Leigh
Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85
View this thread: http://forums.slimdevices.com/showthread.php?t=30703
jan van mourik;163946 Wrote:
That's cool, except it's quite a ways to ship it to the US... Darn...
jan
Though it's less hassle than learning to solder, risking house fire, or
paying $175 for a tricked out wall wart :)
Good link Phil (although it went to CPC main page..)
There's not much
Sorry I messed up the link...
http://cpc.farnell.com/jsp/endecaSearch/searchPage2.jsp?Ntt=PW00187Nty=1N=411Ntk=gensearch
--
Phil Leigh
Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85
View this
I jumped the gun on this thinking it was wm series, will this suppy
work? Noob!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemih=005sspagename=STRK%3AMEWA%3AITviewitem=item=150062554407rd=1rd=1
--
Nick77
Nick77's Profile:
You're looking for 5v at 1.5A. It needs to be 5V (no more or less) and
at least 1.5A (higher is OK as the SB will only draw what it needs!)
--
Phil Leigh
Phil Leigh's Profile:
Phil Leigh;164001 Wrote:
Sorry I messed up the link...
http://cpc.farnell.com/jsp/endecaSearch/searchPage2.jsp?Ntt=PW00187Nty=1N=411Ntk=gensearch
I'm assuming this one would not have a standard U.S. plug and expect
110V, yes?
--
jeffmeh
jeffmeh;164034 Wrote:
I'm assuming this one would not have a standard U.S. plug and expect
110V, yes?
Er - yes. I'd have thought you could find an equivalent in the US with
US fittings/voltage.
The mains plug of course is easily changed - but really this is a UK /
European solution 220-240V
Phil Leigh;164036 Wrote:
Er - yes. I'd have thought you could find an equivalent in the US with
US fittings/voltage.
The mains plug of course is easily changed - but really this is a UK /
European solution 220-240V - apologies!
One would think so, but finding a suitable, reasonably
Nick77;164018 Wrote:
I jumped the gun on this thinking it was wm series, will this suppy
work? Noob!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemih=005sspagename=STRK%3AMEWA%3AITviewitem=item=150062554407rd=1rd=1
No. Two problems. First, the voltage is too high. The SB wants 5V,
not
Phil Leigh;164001 Wrote:
Sorry I messed up the link...
http://cpc.farnell.com/jsp/endecaSearch/searchPage2.jsp?Ntt=PW00187Nty=1N=411Ntk=gensearch
Phil, and anyone in the Uk considering this item should note my
experience perhaps:
I purchased two of these and while they did work out of the
Well...you must have been unlucky because mine's been working for about
12 months now with no problems...
--
Phil Leigh
Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85
View this thread:
I remembered a thread about power supplies failing, and I think the CPC
unit may be the infamous specimen.
http://forums.slimdevices.com/showthread.php?t=26937
--
Skunk
Skunk's Profile:
Skunk;164172 Wrote:
I remembered a thread about power supplies failing, and I think the CPC
unit may be the infamous specimen.
http://forums.slimdevices.com/showthread.php?t=26937
Skunk,
I'm not sure if they are the same. My CPC unit is made by a
local(ish) firm called Stontronics. It
I agree completely with your statements, Greg. Which is why I am trying
to locate a source for an inexpensive, linear, plug-and-play power
supply. I will approach the comparison between linear vs. stock with
an open mind but I do feel that the default position has to be that
there is no
El Duderino;163190 Wrote:
Which is why I am trying to locate a source for an inexpensive, linear,
plug-and-play power supply.
I am aware of no such beast. The cheapest plug/play would be the modded
elpac by Bolder, and I believe one of the mods is change the DC
connector, so the stock elpac
When changing to a linear psu did any one notice a slightly softer /
maybe not so much bite in the treble department ?
I know I need to have a bash myself, but just wondering.
--
Deaf Cat
Deaf Cat's Profile:
Tyler,
That is a terrific post especially since you don't think these PS's
make a difference.
It is very interesting how cheap they are.
I got my Elpac for 17.00 when everyone else was paying 40.00
Why? The electronics store I bought from didn't yet know about the
Audiofool demand for the Elpac
A quick question. Are the 5 pin DIN connectors plug-and-play compatible
with the Squeezebox? I am referring to the power supply referenced in
Tyler's second link. I have an aversion to any soldering/fiddling that
may be necessary. Thanks in advance.
El Duderino/OtoDoc
--
El Duderino
El Duderino;163137 Wrote:
A quick question. Are the 5 pin DIN connectors plug-and-play compatible
with the Squeezebox? I am referring to the power supply referenced in
Tyler's second link. I have an aversion to any soldering/fiddling that
may be necessary. Thanks in advance.
No. A 5-pin
Well.. there is crimping, which isn't soldering- but you'd need a
multimeter to check polarity, which is fiddling.
--
Skunk
Skunk's Profile: http://forums.slimdevices.com/member.php?userid=2685
View this thread:
Thanks for the rapid replies. I would like to give a linear power
supply a try at some point but I am not entirely convinced by the
arguments put forth in support of the Bolder modded Elpac. That is not
to say that no difference exists...
Ideally, I'd like to test out any potential improvement
El Duderino;163144 Wrote:
Thanks for the rapid replies. I would like to give a linear power
supply a try at some point but I am not entirely convinced by the
arguments put forth in support of the Bolder modded Elpac. That is not
to say that no difference exists...
Ideally, I'd like to
37 matches
Mail list logo
