Quote: Nice leeperry, the experienced user.   But, i have one more question in mind..   As far as i know, amplifier is only amplify the signal, so if an amplifier can power cans properly, do i need to find another one? What kind of improvement if i change to a discrete amplifier...

  Quote:   LOL, you're right.. Dr DAC2 is quite big.. Just like blinking wi-fi router   Yup hopefully uDAC2 gives more improvement than uDAC1..

Quote: ROFL, the K801 is white and the K802 is black. Hmm.. I feel it like a deja vu.

I got no good impression when using uDAC1, no idea about uDAC2 since the uDAC2 boasts TOCOS volume control.   PC? Why don't you find a PCI or PCI Express sound card that has integrated headphones amplifier?

I have tried uDAC1 connected to my laptop. I did'nt find any good impression on it. It sounds no difference with my laptop headphones out. Maybe subtle improvement, but i can't hear it. I used Yuin PK1 at that time.   What about ibasso D4, Audiotrak Dr DAC2 or RSA Predator?

Is the "emotional" same with "intimate"?? Or maybe same with "image of the singer". Thanks.

Quote:   Nice.. But i just curious if you just find subtle improvement, why do you upgrade your system from STX to Concerto+StageDAC? Have you ever been tested those before you decided to buy?   Sorry for the detail question.. Because i really want to stop my curiosity thoroughly.  ...

I have tried AD700.. I agree with the first poster.   Before buy a pair, i think AD700 is good in comfortability, but the fact is it is not comfy on my head. I can't stand using it for more than 30 minutes. This is not a joke, it's true! Most of my friends said that AD700 is good in...

I don't have any idea about HDP, but i have used uDAC, it didn't give me a good impression with my HD 650. I would rather choose headamp section from Asus Xonar STX or Audiotrak Prodigy XT for my HD 650.   I wish HDP would be a great DAC & headamp for HD 650.. Since i still haven't found any...

Quote:   Thanks Zenpunk.. Do you still use your STX as DAC until now?   If the improvement is not quite obvious & overt, maybe i will keep listening my high-impedance cans with sound card. I just want a "night & day" improvement, i know it is hard, because this hobby (so far i know)...

Does the police at your region really concern about this case?

How much does the Audiosphere cost? Is it a dedicated product for K1000? Sorry haven't understood about audiosphere..

Sorry to hear that..   Just standby on the "For Sell/Trade Forums", just in case the grabber sells your cans there..

Quote:   Sorry for mega bump   SR-71 is a portable amp with the price tag around US$450. For US$450 there are lots of desktop amplifier products, is it still valuable to take SR-71 as a mate for HD 650 if not for portable using? Can SR-71 compete with desktop amp at the same price...

Dear Member,   I have (could be) a simple question to you all, hopefully you could help me..   Ok, nowadays, i am using the headamp from Asus Essence STX and Audiotrak Prodigy XT to power my HD650 & K702? I have changed stock opamp of Prodigy XT headamp section from JRC5522 to...