Quote:
Originally Posted by
beeman458 
twn2 wrote:
It seems that using a musical CDP is better than the computer CDP in both way, as compared with the pretty high price CDP with my friend.
What sound card are you using?
I have the Pioneer Blu-ray burner, coupled to an ASUS Xonar STX sound card. Files are ripped in WAV and I get excellent sound listening to the files with a Sennheiser HD650.
I'm not knocking the idea of getting better gear in my above, I'm suggesting that there's something else going on with your system to cause the final product to sound so bad by comparison to your friend's system. Much improvement can be had by adding quality playback and that's what you're wanting to do. An Audio-gd combo amp such as the "Fun" would be an excellent starting point as you can line out to the Audio-gd DAC, completely sidestepping the computer sound card.
What headphones are you using? A decent starting point, from what others have written, would be a pair of Sennheiser HD555's.
My headphones of choice are a pair of Sennheiser HD650's. Upgrading to an Audio-gd "Fun" and a pair of Sennheiser HD555's would go a long way in upping your sound quality and be well within your stated budget of $600.00 with a few dollars left over. If you could stretch your budget a bit and your computer has the room, I'd suggest adding an ASUS Xonar STX to your computer as well but line outing to the Audio-gd "Fun," in of itself, will be a huge step-up.
Admittedly there's a boatload of choices available at your stated budget so I don't want you to think that my above suggestion is the only way to go.

I guess that you misunderstand my goal. I just want to even upgrade my system, because my computer system is almost perfect.
I have DAC, which is mainly DIY'ed by my friend. So I can't convince you how good it is, all what I can say is that it completely beats all DAC that I have heard, including DAC1, or even DAC64. So I don't think there is any problem in my DAC. For now, I use the Audiofire2 as the digital output to connect my PC and my DAC. I had also tried to directly connect my PC and DAC through the USB, almost the same level as the way through AF2. So I suppose there is no problem in this part.
I own 10 headphones, including HD800, T1, DT48e, and HD650, so it should be no problem on my headphones, otherwise, errrr....
My amp is also good enough, although it is also a DIY'ed one, as you didn't ask about this, let me skip this.
I guess you focused on my statement that the sound in my computer is awful. Well, I should say that if I put a CD in to the CDP in my computer, and compare to my friend who uses almost the same system as me except he uses a musical CDP as the source, the sound in my system is awful.
Just want to remind you that my goal is to get a good CDP, since there is almost no way I can upgrade my computer system.
Anyway, thanks for your suggestions.