Organelle hum - Grounding issue?

#1

Hi,

I just received my Organelle and am having so much fun with it, however I am hearing a hum from it, here are the details.

I am using the provided power supply, but I live in the UK so I am using a US to UK converter. I am plugging it straight into the wall.

I am then taking the Left 1/4" jack into a Hi-Z input on my apollo twin.

I really want to solve this issue as I am using it for recording and the noise floor is considerably high.

I hope someone can help!

Thanks

#2

Are the amp and Organelle plugged into the same outlet? if you unplug the amp and listen to the Organelle with headphones do you still hear the noise?

#3

I may be wrong, but I think the Hi-Z input may exacerbate the hum coming from a grounding issue. They are usually used for guitars, piezo pickups etc. Do you have any regular line level inputs you can use instead?

#4

They are plugged into the same outlet in the wall. There is no noise through the headphones, just a clean signal

#5

Yes, I thought the same. But in this particular case the Hi-Z is actually reducing the noise hum and also giving the extra gain that I need in comparison to the Line level input

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#6

Voltage Converters are pretty noisy so the hum may be coming from that.

You can use the power supply without the voltage converter: the power supply’s input is rated at 100-220VAC, 50/60Hz so it will work on the UK power grid. However, you will need a ‘plug’ adapter to match the UK wall socket shape:

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#7

My mistake, I meant that I was using a ‘plug adapter’ like the one you have posted, not a voltage converter. I’m not aloud to post a pic, but the input of the power supply is: 100-240v~50/60hz 0.5A

The plug converter has 13A, 250V written on it.

I’m a noob when it comes to electronics, so I don’t know what is compatible.

#8

Thanks for the update @sean90. Do you have a different cable you can try? Is there another input on the amp you can try too?