Stereomour Step-up Transformer

[pin_punk_13]

Hi,

I am new to the forum. I recently bought a stereomout I second hand and it is made for the US market. It's transformer is 120V. I want to use it in Europe so I need an external transformer 230V (50Hz) to 120V. Does anyone happen to know what wattage needs the transformer to be? Also should I look for something else besiders the 230V to 120V and wattage?

[Paul Birkeland]

Have you measured your line voltage?

[pin_punk_13]

Yes, the line voltage in Romania is 230V and 50Hz. I think that is what you mean by line voltage.

[Paul Birkeland]

Yes, there are a lot of specifications floating around, but sometimes what's actually coming out of the wall is something all together different.

A 230:120V step-down is what you're after, and 100VA or more should do the job nicely.

-PB

[pin_punk_13]

I didn't expecte you would say that a 100W transformer would be sufficient. I was expecting something like 3000W. As I was led to understand that the needed power is input amperage x input voltage. And the transformer that comes with the stereomour is 120V so... the amperage is less than 1A? Maybe I am a noob but sounds a little small to me.

[pin_punk_13]

I have one more question. In the US the frequency is 60Hz but in Europe is 50Hz. Will a step down tranformer that does not change the frequency affect the amp? Either on the long or short run?

[Paul Birkeland]

I didn't expecte you would say that a 100W transformer would be sufficient. I was expecting something like 3000W. As I was led to understand that the needed power is input amperage x input voltage. And the transformer that comes with the stereomour is 120V so... the amperage is less than 1A? Maybe I am a noob but sounds a little small to me.

The Stereomour comes with a 1.5A fuse for both 120V and 240V versions, as the 2A3's will draw considerably more power at startup before they are warm.

A 3000VA step-up transformer will have considerably higher voltage than you desire with just a Stereomour loading it. 

The 50Hz/60Hz question is not an issue with our power transformers; they will handle 50Hz just fine.  The step-down transformer, however, must be rated for 50Hz operation.

-PB