Hi there,
I have recently purchased an Onkyo A9010, Dali Zensor 3 speakers and a Rega P2. However, I am having an issue with what at first glance is something that has been discussed on a number of occasions, but one that I think is actually different to other threads.
When my amp is set to the phono channel, there is a noticeable hum regardless of whether the TT is plugged in to the mains or not (but obviously hooked up to the phono connection). I have had it checked by two separate hifi stores (both Rega dealerships) and both indicate that there isn’t an issue.
The humming itself increases as I move my hand closer to the tonearm and even more so when I touch any part of it. This happens regardless of the floor in my house I try it on, and I have also tried it with a pre-amp hooked up to another amp. I can remove the hum, if I touch the underside of the cartridge with my finger, or if I connect some speaker cable to the ground connection to the amp and then touch the screw on the top left part of the cartridge/tonearm.
However, I have also tried it at a friend’s house and the issue is not present at all (which is what the two dealerships said). Therefore, I can only assume it is something to do with my house, but what that is, is beyond me. I thought it might be a ground loop problem, so I bought a ground loop isolator, which hasn’t helped at all apart from I now can’t remove the hum by touching the bits that previously removed the hum.
When I touch the tonearm level, I get a clicking noise and when I move the tonearm it both increases the hum as well as giving a bit of a static/crackle noise as I move it.
Does anyone have any ideas at all?
Thanks in advance
Mark
I have recently purchased an Onkyo A9010, Dali Zensor 3 speakers and a Rega P2. However, I am having an issue with what at first glance is something that has been discussed on a number of occasions, but one that I think is actually different to other threads.
When my amp is set to the phono channel, there is a noticeable hum regardless of whether the TT is plugged in to the mains or not (but obviously hooked up to the phono connection). I have had it checked by two separate hifi stores (both Rega dealerships) and both indicate that there isn’t an issue.
The humming itself increases as I move my hand closer to the tonearm and even more so when I touch any part of it. This happens regardless of the floor in my house I try it on, and I have also tried it with a pre-amp hooked up to another amp. I can remove the hum, if I touch the underside of the cartridge with my finger, or if I connect some speaker cable to the ground connection to the amp and then touch the screw on the top left part of the cartridge/tonearm.
However, I have also tried it at a friend’s house and the issue is not present at all (which is what the two dealerships said). Therefore, I can only assume it is something to do with my house, but what that is, is beyond me. I thought it might be a ground loop problem, so I bought a ground loop isolator, which hasn’t helped at all apart from I now can’t remove the hum by touching the bits that previously removed the hum.
When I touch the tonearm level, I get a clicking noise and when I move the tonearm it both increases the hum as well as giving a bit of a static/crackle noise as I move it.
Does anyone have any ideas at all?
Thanks in advance
Mark