natra084
100+ Head-Fier
- Joined
- Oct 21, 2014
- Posts
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- 18
I tried with my phone too I think it is just nesty usb power
Yes, it seems like the Mac is adding noise. Can you try a few more USB cables? Can you try another USB source, either a laptop (running from battery), phone or tablet? You could even try plugging your computer in to other wall sockets, as it may be the mains power.
I tried all my usb ports and I tried with my phone and different cables and it is still making noise.
If the hum is there with you phone as well, then it might be a faulty Nano. Since the phone is not using a USB cable then it stands to reason that the Nano itself has an issue.
The other point could be that what you are perceiving as noise might actually be the way the device operates. At Max volume there is a slight hum to the Nano with headphones. But I doubt anyone would listen at that extreme volume for any period of time. Between 11 and 1 o'clock there is minimal to no hum.
What headphones/IEM's are you using? I have heard people before saying they hear some noise when using very sensitive IEM's and turning the volume up to max but obviously you would not listen at this level when music is playing as it would be way too loud. I use mine with AKG 7XX's and have the Nano turned up high with no noise problems but I find the sound a bit harsh if I go louder. Have you tried adding another headphone amp after the Nano? You have to have the Nano turned all the way up though, so this would be a good test.
natra084, haven't heard back from you partner. How is the testing going over there?
Do you have another DAC you can try in the place of the nano?
Newbie here, so I'm considering this as a 'starter' headphone amp for my AKG 7xx's and I was wondering what's the difference between this and the O2/ODAC? Most of my music is in FLAC from my laptop so is there any point to getting this as a DAC/amp or just go for the iFi iCan nano? I don't have any DSD or DXD recordings, so is the DAC capability just wasted in this case?
Thanks.