simple but not working - help !

Could it be that the old adaptor stoppped working because there is a fault with the speakers which is overloading the new adaptor, or , are you sure the old adaptor was AC and nor DC?

Ron

Hello Ron,

Trust me, i triple checked and got the original even here on my desk.

By the way, this is the link to the creative set i have with some specifications:

The new adapter is not one of those heavy ones but rather uses electronic components to do its job. Dunno if that might be a problem.

That doesn't sound like an AC output adaptor. They MUST use a heavy transformer. Can you post the label for the new supply?

Hi !

This the information of the new supply:

(translated)

E.611955 - AC powersupply 12V-75W AC powersupply / Halogeen Transformer - 12 Volt - 75 Watt.

Input: 230 Volt output: 12 Volt ac - max. 75 Watt

What you think ? This one is very light compared to the original in weight, but that is because it uses electronic components to do the job or so.

Yes it could be, a cheap switch mode psu might produce a lot of hash that the amplifier doesn`t appreciate.

Ron

Hold on.. do they actually make ac to ac switch mode psu`s? A quick scan through a large electronics supply catalogue doesn`t show any.

Ron

If that is a switcher, take it back and get a real transformer.

There's all sorts of switching noise that's not going to be filtered by a typical amplifier.

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Sure, but it is meant to power halogeen bulbs, not an amplifier. Lamps are not critical for waveform and frequency but the rectifier and regulator of your amplifier are. The electronics you mention consist of a high frequency switcher and I should not be astonished the 12VAC it produces to be some tenth of kHz and far from sinusoidal.

petrus bitbyter

Ah, when you said electronic components I wondered if you were trying to use a halogen transformer. Those don't put out 50 (or 60) Hz, they're more like a triac light dimmer. I'm very surprised you didn't get smoke and fireworks when you plugged in the speakers. You need a magnetic transformer, not a switchmode lamp regulator.

Yes. Do not use this. Find a good solid AC transformer type. A lamp is a resistive load and can run off many different sources that can fry your system.

Guys, thanks alot for the good advise and your time !

I'm going to bring this thing back and get a normal transformer (no halogeen stuff). I hope i can find an ac - ac transformer, else i'll have to see if i can get one from creative itself.

Thanks again !

Those halogen "transformers" are pretty useful for other things, if you wire one to a car ignition coil you can get some pretty decent sparks.

Maplin's or similar? Maybe even Radio Shack?