Can I use a 12V, 1000mA plug for speakers that use 15V DC, 800mA?

mrmike16

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Hi, so I moved countries and I am trying to find replacement cables for my speakers rather than use transformers.

I found one for my Dell speakers, but not my old Gateway2000 speakers from Altec Lansing which are so much better than modern speakers. These are computer speakers I am talking about.

The cable for the Dell speakers (Both the American and European ones) says 12V, 1000mA (12W Max) on it.

The Gateway2000 plug (of which I only have an American one) says 15V DC, 800mA.

Since I couldn't find a European cable for the Gateway one here, could I use the Dell cable with it? Or will that break it?

I am reading the Output of both. The Input is why I'm replacing it- they aren't dual voltage.

Thanks in advance!
 

ko888

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Onus

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Assuming the polarity is correct, plugging in a 12V input to a device requiring 15V won't do any damage, however if you undervolt an amplifier, you may get clipping or other distortion. I'd try Amazon for an adapter that has 15V output, possibly a universal type.
 

mrmike16

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I can't seem to find one (And I have no idea if the plug would fit my speakers).
I'm not sure what you mean by "undervolt an amplifier", or even "clipping"- I'm assuming "clipping" was in terms of the audio sound?

Does the lower voltage and higher mA sort of even it out?
 

Onus

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No, a device only draws the mA it needs, regardless of how much is available. Clipping is a reference to the peaks of the waves being cut off. A Google search for "Amplifier clipping" will show some waveforms, and explain causes. In this case, supplying a voltage too low could prevent the amplifier of your speakers to hit those peaks.
This provides much more current than needed, but that's ok because your speakers will only draw what they need; but can be set for 15V at whichever polarity you need: https://www.newegg.com/Product/Product.aspx?Item=9SIA6RP37N6759&cm_re=15V_universal_ac_adapter-_-9SIA6RP37N6759-_-Product
It comes with multiple tips, so one should fit.
 

mrmike16

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Onus, that one seems good (although it will take up lots of space), but is it 220v?
ko888, That one looks good from what I can understand, but I'm not totally sure. I don't have exact measurements of mine or the one on that site. It's also not listed in English.
I live in Israel, so 220v would be good. Sorry, I am just having lots of trouble finding it!
Would my Dell adapter harm the Gateway speakers?
 

mrmike16

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Here you go. The adapter for the Gateway2000 Altec Lansing speakers.

OK so uploading it didn't seem to work on here.

I'll type in the information:

"PLUG IN CLASS 2 TRANSFORMER
PART NO : A1664
MODEL NO : MAU48-15-800D1
INPUT : 120V 60Hz 25W
OUTPUT : 15V DC 800mA
- +
"

And then the whole copyright trademark stuff.
 

mrmike16

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Can I have that site in English, please?
Shouldn't it say DC, not AC?
 
@MrMike16,

The adapter @Ko888 referred to has DC output, 15VDC, and right polarity of the plug. What you're looking to match, now, is "OD" - Output Diameter of the plug which goes into your speakers. The above adapter is quite common, with 5.5mm x 2.1mm.
 

ko888

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