Hum and disortion with rega planar 1 plus

[salc71]

I bought Rega Planar Plus One and connected to my Onkyo A9155. It has a loud hum and disortion when connected.
Is it because there isn't a ground? Some people don't seem to have any issues at all.
It seems like a common issue but there are different solutions.

 

[gellert]

My Guess is ground

 

[Al ears]

It is grounded through of the signal cables so don't think it is that.
admittedly it might be better if it had a seperate ground wire.
Question: why did you buy a turntable that has a phono preamplifier when your Onkyo already has one but in?
have you forgotten to switch the preamplifier off on the turntable?....... Forget that it doesn't look like you can switch it off. Typical Reg a
Try connecting it as it is to the CD input on your Onkyo.

 

[salc71]

Ignorance on my part. Is there a solution?

 

[Al ears]

Ignorance on my part. Is there a solution?

Where have you got it connect to on your Onkyo, which input?

 

[salc71]

Where have you got it connect to on your Onkyo, which input?

Phono input

 

[salc71]

It is grounded through of the signal cables.
admittedly it might be better if it had a seperate ground wire.
Question: why did you buy a turntable that has a phono preamplifier when your Onkyo already has one but in?
have you forgotten to switch the preamplifier off on the turntable?....... Forget that it doesn't look like you can switch it off. Typical Reg a
Try connecting it as it is to the CD input on your Onkyo.

Where would I connect the cd though?

 

[Al ears]

Where would I connect the cd though?

connect it to any input EXCEPT phono.
Try Tape In or Line/Dock In
Does the him go away?

 

[Al ears]

Of course you could take it back and exchange it for the Planar 1 which could have saved you £86......

 

[salc71]

Of course you could take it back and exchange it for the Planar 1 which could have saved you £86......

Yes I know, stupidly bought online...

 

[salc71]

connect it to any input EXCEPT phono.
Try Tape In or Line/Dock In
Does the him go away?

Works perfectly now, thank you so much!

 

[Al ears]

Works perfectly now, thank you so much!

No problem. Glad we got to the bottom of it.
What you were doing by connecting it to the Phono input was amplifying the cartridge signal twice.
Amplifiers don't like this hence the hum....
Enjoy!