HELP!!! weird high pitch noise

[AaronSoFat]

hi i have inferred that my power supply is causing a high pitch noise through my amp as i have tried one by one all the pedals with a 9v battery and with the power supply... it's a t-rex power adapter and a one spot daisy chain so i doubt that would be causing the problem. really not sure on how to rectify this problem. is it a potential difference between the place the amp is plugged and the place the pedal board is plugged? is it an overall problem on the grounding of my home? i do not know. please help. thanks

 

[AaronSoFat]

oh come on... nobody knows??

 

[PatheinRaindropMoe]

heh, most prolly it tedious to write out so many things and in the end, still never get to find out the actual problem

If can, bring to techie, set up the thing in from of them and listen if theres similar problem, It would prolly be more effective and straightforward then using forums, when its this kinda thingy concern.

for all the pedals i have tried with adaptor. The only remotely "high pitch" squealing thingy which i have encountered is when mixing pedals of different polarity sharing the same adaptor. And i dont think there will be much chance usually, to encounter that, with the way most single stompboxes are powered today.

lastly, yes, bring to techie, easier and faster. Or check with seller of the equipment and see if they are able to provide any after sale service.