the original cable 3.5 jack is good? (audio, distortion, noise, etc)

I've heard that this amp NX1 has  background noise. Is this true? Or is something related to the computer's power USB? I'll connect to a USB Isolator ADuM4160 Teralink board and external power supply.

Guys, which is better, this amplifier or Fiio E6? works while charging?

I wonder if the bi-amplified (this dac have an amp) noise gets to sound. Thanks.

Hello, the E6 is sufficient for Takstar TS671?   Fiio E6 spects:  http://www.fiio.net/en/products/5/parameters   Takstar TS671 spects:    Impedance: 120Ω Sensitivity: 102dB/1mW Frequency response: 20Hz-20kHz Stipulated Power: 500mW

Hello, I want to buy this DAC for use directly with a Takstar TS671 of 120ohm ... Does it work well?

Hello, I search this:   http://www.aliexpress.com/item/PD310-USB-Karaoke-Microphone-Audio-Link-Mic-to-USB-Cable-for-MacOS-X-Windows-98SE-2000/1738009936.html   The specifications are good? Alternatives?   Thanks.   Specifications: Resolution: 16 bit 48/44.1 KHz THD+N (-3dBr): -76dB...

Hello, I seek opinions about what the best equalizer. It would be a plus if it is GPL, free, or Open Source. Thanks.

Obvious. The headphone output is amplified, and the line-out no. The D01 is the same as the D02 line-out jack.

The D02 amplifier  the headphone jack, and "Line-out" is the same as the D01. I doubt that quality "line out" (is the same as D01) is crap. People are very happy with both DAC. (D01 and D02)

This audio player is better than foobar?? UI is very nice.

Can you recommend me an audio-player FREE (GPL) as good as foobar? Thank you very much.

Thanks you very much :)

Sorry, but can not find. If you see, tell me please. Thank you.

I feel this thread up again, but someone can tell me that this output impedance of the amplifier?