Eeyore wrote:

Anton Gÿsen wrote:

The on/off switch is my main complaint, but I can't help feeling like
the power supply was done by Cambridge Audio on the cheap. For instance,
sometimes the sound drops out for a fraction of a second when I switch
my CRT TV on. I refuse to believe that the design of this PSU cannot be
improved upon.

Most likely a problem with your ***TV*** !

My TV has nothing to do with my DAC.

And why are you using a CRT TV using lots of watts when the most you can save
by changing the PSU on this DAC is 1-2W ?

I don't watch much TV. I do however, listen to lots of music via my DAC.

Change the bloody TV you NITWIT if 'being green' is what it's about. Get an
LCD one.

I will one day, but for the moment I'll stick to my 14" CRT, it only
consumes 44 watts.

Phil Allison wrote:

Wanna bet he drives a real petrol guzzler.

I don't drive.

Eeyore wrote:

So does your body consume energy. Considered fitting an on/off switch on yourself
?

What kind of question is that?

And chuck out that CRT TV and get an LCD one. You can probably do that for the
price of saving 1W on your precious DAC's PSU.

Se emy other post...

Eeyore wrote:

Anton Gÿsen wrote:

Serge Auckland wrote:

A mains filter will cost a few pounds/euros. You're not thinking of an
audiophile one are you? That's a £€5 part in a £€ 50 box with a £€ 1000
price tag.
I can only find the audiophile ones.

You mean audiophool.

Try an electrical shop ! They're probably better made anyway !

Can't find anything on the B&Q site and there's nothing open at 3:20am
on a Sunday.

Eeyore wrote:

Anton Gÿsen wrote:

Adrian C wrote:

Use a PC switchmode power supply? or just disconnect the whole thing and
run from the original audio outputs of the CD player.

/me looks, ducks and runs for cover ...
Nice try

Seriously, the replacement "enthusiast" power supply market for digital
addons is getting a bit OTT. I've got an Audio Alchemy dac-in-the-box
(use it for PC audio from S/PDIF) and lots of folks are brewing
alternative power supplies for that. Same goes for the
Slimdevices/Logitech Squeezebox.
Glad I'm in the right ballpark and my idea is not ridiculous. I love the
DAC but they really scrimped on the cheapo Chinese PSU.

Inside the DAC there will be a 'regulator chip'. Or possibly it's inside the
PSU itself.

Yes I know what I regulator does...

It will make **** all difference other than deal with your entirely misplaced
preconceptions. Some of the best quality electronics comes out of China now. I
know. I've been there and seen the factories and worked with them.

There's a lot of crap that comes out of China as well. It's not as
though Cambridge Audio are making their DAC transformers in-house, they
will be buying up the cheapest crud they can lay their hands on. The PSU
looks and feels cheap.

Phil Allison wrote:
"Adrian C"

Use a PC switchmode power supply?


** It's a 12 volt AC output adaptor !!!!!!

Do learn to read things before you SNIP and ignore them !!!

He was taking the ****!

Eeyore wrote:

Anton Gÿsen wrote:

Hi all,

I am wishing to build a replacement transformer for my Cambridge Audio
DacMagic DAC (the new one that's just come out). I am unhappy with the
original PSU because it is inefficient and doesn't have a physical
on/off switch so it's constantly drawing a current unless you unplug it,
and I like to save evergy where I can.

So I was wondering whether I could build a new transformer for it based
around a toroidal core transformer, in the hope that it will reduce
power consumption and, if I'm lucky, make the DAC sound better.

And how exactly would it make the DAC sound better ? Details please ?

I don't know, nor was I claiming to.

Do you think you know more about high-end audio electronics design than
Cambridge Audio ?

Do you think that Cambridge Audio put a lot of thought into the power
supply module when they designed the DAC? It's ben outsourced, it's got
a different manufacturer's name and logo on it.

If you don't like it, sell it and buy something else FFS !

Yawn...

Graham (pro-audio design engineer for 37 years)

Yes I've noticed from lurking on this group for a while that you like to
make your credentials known on a regular basis.

Anton Gÿsen wrote:

The on/off switch is my main complaint, but I can't help feeling like
the power supply was done by Cambridge Audio on the cheap. For instance,
sometimes the sound drops out for a fraction of a second when I switch
my CRT TV on. I refuse to believe that the design of this PSU cannot be
improved upon.

Most likely a problem with your ***TV*** !

And why are you using a CRT TV using lots of watts when the most you can save
by changing the PSU on this DAC is 1-2W ?

Change the bloody TV you NITWIT if 'being green' is what it's about. Get an
LCD one.

Graham

Anton Gÿsen wrote:

David Looser wrote:
"Anton Gÿsen" wrote
Serge Auckland wrote:


The on/off switch is my main complaint, but I can't help feeling like
the power supply was done by Cambridge Audio on the cheap. For instance,
sometimes the sound drops out for a fraction of a second when I switch
my CRT TV on.

Not necessarily due to mains wiring coupling, even if it is changing to the
transformer will *not* help with that. Try an external mains filter (with a
switch!).

I'd like one but can't afford one at the moment.

I'm still convinced that this PSU can be improved in some way, shape or
form.

You're an obsessive IDIOT. And one who doesn't even realise his CRT TV is the
real culprit.

Graham

Serge Auckland wrote:

A mains filter will cost a few pounds/euros. You're not thinking of an
audiophile one are you? That's a £€5 part in a £€ 50 box with a £€ 1000
price tag.

One from Russ Andrews ?

Graham