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 i
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 performan
Thanks Sean. I greatly appreciate all your (and others) advice. In fact
it amazes me!
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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
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:
> Does the impedance of my umbilical matter or does the impedance of the
> supply dominate if it's greater? Would it possibly matter more if I had
> a quality supply with superregs? I wondered if twisting the wires would
> have negative effect (different wire lengths etc.) but
Skunk;164487 Wrote:
> At any rate I wish I had your ability to build from schematics.No need! We
> sell Andy Weekes' Super Reg boards on his behalf - they are
what Sean based his Transporter designs on, so I understand.
http://www.at-view.co.uk/alwsr.htm
--
Patrick Dixon
www.at-tunes.co.uk
tyler_durden;164477 Wrote:
> The impedance of the supply should look like 0 Ohms over an infinite
> bandwidth.
Does the impedance of my umbilical matter or does the impedance of the
supply dominate if it's greater? Would it possibly matter more if I had
a quality supply with superregs? I wonder
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 wh
ddden;164345 Wrote:
>
> Are the S+ and S- terminals a feature of the specific PS you are using?
Yeah the Power One HB5-3. I hooked up the sensing yesterday and it was
even more of a pain than I thought it would be. I used 16 gauge SPC
which is rated just over 3 amps for cable transmission
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 you
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 wo
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
...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 expe
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 o
Phil Leigh;164193 Wrote:
> Skunk,
> I'm not sure if they are the same. My "CPC" unit is made by a
> local(ish) firm called Stontronics. It doesn't run hot as described in
> the other thread. Maybe someone else who has one of these could
> confirm?
> Phil
Yup 'my' CPC units are both Stontronics,
Skunk;163194 Wrote:
> ...Sean has done some measurements, and IIRC the SB3 measured worse with
> the linear supply.
Worse? I didn't realize that was the case. I'll try to find that
thread, unless somebody else knows where this was posted?
--
NewBuyer
--
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
c
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 m
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
---
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.
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: http://forums.slimdevices.com/mem
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: http://foru
Phil Leigh;164001 Wrote:
> Sorry I messed up the link...
>
> http://cpc.farnell.com/jsp/endecaSearch/searchPage2.jsp?Ntt=PW00187&Nty=1&N=411&Ntk=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
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?ViewItem&ih=005&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=150062554407&rd=1&rd=1
No. Two problems. First, the voltage is too high. The SB wants 5
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 pr
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;164001 Wrote:
> Sorry I messed up the link...
>
> http://cpc.farnell.com/jsp/endecaSearch/searchPage2.jsp?Ntt=PW00187&Nty=1&N=411&Ntk=gensearch
I'm assuming this one would not have a standard U.S. plug and expect
110V, yes?
--
jeffmeh
--
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: http://forums.slimdevices.com/member.php?useri
I jumped the gun on this thinking it was wm series, will this suppy
work? Noob!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=005&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=150062554407&rd=1&rd=1
--
Nick77
Nick77's Pro
Sorry I messed up the link...
http://cpc.farnell.com/jsp/endecaSearch/searchPage2.jsp?Ntt=PW00187&Nty=1&N=411&Ntk=gensearch
--
Phil Leigh
Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85
View this
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 po
Sorry - I keep forgetting about that!
--
Phil Leigh
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View this thread: http://forums.slimdevices.com/showthread.php?t=30703
_
That's cool, except it's quite a ways to ship it to the US... Darn...
jan
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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 i
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
http://dkc3.digikey.com/PDF/T0
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: http://fo
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 elpa
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 differen
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
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
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: http://for
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-
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
---
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 :
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