I recently decided to upgrade my headphone sound and started by getting a Sennheiser Momentum headphone. (Impedance =18 Ω , Load rating = 200 mW ).
After reading about the U2 DAC, I ordered one and also a FiiO E06 amp.
The headphones and amp works perfectly with no noise from my laptop (Win8.1 64bit + Foobar 2000), but when I add the U2, I can hear plenty of noise, a very high frequency continuous sound and also a constant distortion. When connecting the headphones directly to the U2, I still get all of that, even at very low volume settings.
I tried it on a HP laptop and also on my Lenovo.
What can be the problem? Is it really the USB 5V that is that noisy or can it be a fault with the U2? 🙁
After reading about the U2 DAC, I ordered one and also a FiiO E06 amp.
The headphones and amp works perfectly with no noise from my laptop (Win8.1 64bit + Foobar 2000), but when I add the U2, I can hear plenty of noise, a very high frequency continuous sound and also a constant distortion. When connecting the headphones directly to the U2, I still get all of that, even at very low volume settings.
I tried it on a HP laptop and also on my Lenovo.
What can be the problem? Is it really the USB 5V that is that noisy or can it be a fault with the U2? 🙁
HiFImediy sell a USB isolator which can help with noise problems, but from what you describe I suspect there is a problem with the DAC, so I suggest contacting the seller before spending more money.
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I contacted HiFimediy and they will send me a replacement unit.
Will report back on its performance.
Will report back on its performance.
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