hi all, I am not gud in audio analogy..need some help..

may i know if its ok to hv a connection as below?

Laptop, foobar --> D2 (usb) ---> Secret amp (line in) ---> Akg K242

From what i know, D2 already has its own amp.. does it act as a preamp if i connect the Secret amp to it? Will it hurt my D2 tis way?

Yup... the d2 has a line out... alright.tx for the help!

Has anyone here tried the Yulong Dah1 desktop dac before? hw well would u rate it?

Fiio e10 has NO hissing at all, even at extremely loud volume...

Fiio E10 is realy a beast in my opinion.. I guess nth is better than it at the price u pay..

Cmoy + new opamp + 9v battery + charger for 9v could easily cost u RM400++

hi all, i need some help here on the output of amp... i am currently owning the Audio Gd nfb12 dac + amp.... i nid to learn hw to determine the output current , power etc.. nid some help from sifu here..

Here are some specs i grabbed from audio gd nfb12

Output Level :
Headphone output : 10V RMS (what does tis stand for?)

Output power for headphone: ( normaly hw many watt is needed for a hd650? )
3500mW/25 ohm
1800mW/50 ohm
900mW/100 ohm
300mW/300 ohm
150mW/600 ohm
　
Output impedance: (how about this?)
2 ohm / Headphone output
2 ohm / DAC output