HiFi Subjectivist ¦ Audio Forum ¦ NVA User Group

I forgot to mention I put the JBL 1's back in the system when there was only me at home and was able to turn the volume up a bit: I enjoyed listening to them, detailed and quite punchy, unfortunately this was above my normal listening levels so I guess they are now surplus to requirements

Do u have a turntable there

antonio66 wrote: ↑Tue Jan 19, 2021 8:48 pm I have noticed that when I touch the case on my Topping D30 I can feel it vibrating, sometimes more than others, can anyone make a suggestion why? For now I have placed a weight (concrete block) on the top of the case

Not heard of a vibrating DAC before. Does it get hot?

Does it vibrate when the speakers are not playing?

Strange, is it getting hot and can you hear any buzzing from the case? My D30 runs fairly cool and there is no internal transformer as the PSU is external.

Are you using a BMU or LPSU?

Fretless wrote: ↑Wed Jan 20, 2021 11:20 am Strange, is it getting hot and can you hear any buzzing from the case? My D30 runs fairly cool and there is no internal transformer as the PSU is external.

Same with my E30 which is on top of the P20, on top of the A20. The PS is a power bank.

No, the dac is not getting hot and it does have an external power supply, I'm using one of those iFi power supplies: I can also feel a vibration from the volume control and facia on the amplifier but I assumed it is to do with the valves: The Topping is sited next to the amplifier but it has nothing to do with transmission between the two: Could it be something to do with the electricity supply, I was thinking about buying one of these https://www.aliexpress.com/item/4001234 ... 2e0eCkhmCS
or https://www.aliexpress.com/item/1005001 ... 2e0eCkhmCS
and have looked at this one as well https://www.hifi-amplifiers.com/en/gw-p ... -5104.html
Just seen this one as well https://www.hifi-amplifiers.com/en/gw-p ... -5176.html
I have just uplugged the dac and can still feel a slight vibration

Then the vibration isn't caused by the dac?

Earthing problem in your mains, perhaps?

I've tried to explain to my girlfriend and asked her to touch the top and she cannot feel anything? yet I feel a something, maybe vibration is the wrong word, but I cannot think of a better way to describe it

To be honest, electricity supply is not my strongest subject, so I will ask someone later today regarding earthing