KomoGomolaa
Member
- Joined
- Jun 10, 2022
- Messages
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Hi there. Need your help please. i'm running a wonderful Topping stack consisting of following items:
- Topping E50 dac (connected with Topping HS01 isolator to Mac Mini M1 and powered by Topping P50)
- Topping L50 hp amp (interconnected via balanced TRS)
I have received my brand new Audeze LCD-X (2022). Besides I also have HD800 and Audix A150 - no problem with these.
The "problem" is that when I accidentally touch the earcups or mini xlr connectors of Audeze LCD-X, i can hear a buzzing sound. It's of less significance, albeit still there, when i lift my feet off the ground.
So I did some research on the net and found that it is most probably leakage current somewhere occurring when I give my body as a ground when simply touching the earcups. So there must be something ungrounded in my setup, and looking at the L50, i suspect it's the victim because it is using the beefy AC/AC adapter with no ground. I have tried to disconnect the dac from it and the buzzing is still there.
i thought i would get rid of it, so tried to convert the stock SE Audeze cable to a differential one (the 4-pin xlr to L50 is basically ungrounded because Audeze cable uses only 4 wires - L+, L-, R+, R-), but it didn't help either - it made the buzzing in right earcup slightly louder, which is interesting because single ended buzzing was circa the same level in both earcups).
I thought that when i connect L50 to a grounded dac (i suppose E50 is), the leakage current would be able to escape, but it seems like in my setup it's not the case.
Also i'm not the only one who experiences the very same problem with Audeze headphones, there are reports on other forums too, even with LCD-5...
So the obvious question is - can this be somehow solved? Any help would be appreciated. Should I remove HS01 (because in some way I'm breaking the ground of the dac) or should I connect the chasis of the L50 to the earth ground?
I really like the way how E50/L50 sounds/works for me and don't plan on replacing it anytime, for now I consider it the second best totl dac/hp amp behind the D90SE/A90 combo).
Thank you very much in advance for anything that can help me solve this issue.
- Topping E50 dac (connected with Topping HS01 isolator to Mac Mini M1 and powered by Topping P50)
- Topping L50 hp amp (interconnected via balanced TRS)
I have received my brand new Audeze LCD-X (2022). Besides I also have HD800 and Audix A150 - no problem with these.
The "problem" is that when I accidentally touch the earcups or mini xlr connectors of Audeze LCD-X, i can hear a buzzing sound. It's of less significance, albeit still there, when i lift my feet off the ground.
So I did some research on the net and found that it is most probably leakage current somewhere occurring when I give my body as a ground when simply touching the earcups. So there must be something ungrounded in my setup, and looking at the L50, i suspect it's the victim because it is using the beefy AC/AC adapter with no ground. I have tried to disconnect the dac from it and the buzzing is still there.
i thought i would get rid of it, so tried to convert the stock SE Audeze cable to a differential one (the 4-pin xlr to L50 is basically ungrounded because Audeze cable uses only 4 wires - L+, L-, R+, R-), but it didn't help either - it made the buzzing in right earcup slightly louder, which is interesting because single ended buzzing was circa the same level in both earcups).
I thought that when i connect L50 to a grounded dac (i suppose E50 is), the leakage current would be able to escape, but it seems like in my setup it's not the case.
Also i'm not the only one who experiences the very same problem with Audeze headphones, there are reports on other forums too, even with LCD-5...
So the obvious question is - can this be somehow solved? Any help would be appreciated. Should I remove HS01 (because in some way I'm breaking the ground of the dac) or should I connect the chasis of the L50 to the earth ground?
I really like the way how E50/L50 sounds/works for me and don't plan on replacing it anytime, for now I consider it the second best totl dac/hp amp behind the D90SE/A90 combo).
Thank you very much in advance for anything that can help me solve this issue.