Originally Posted by upstateguy
You don't have a Constantine and I don't have a Paradisea and I think that's about all we can say about that.
On the other hand, I am always curious to hear what kind of improvement you heard from your power cord upgrade and what other power cords, if any, you have tried besides the Zu.
I also wanted to ask you what amp and which headphones you were using for your comparison, because I only saw a NAD receiver and speakers in your sig.
you are right, constantine and paradisea are different beasts. but my understanding is that the implementation of the usb input should be similar on both, using the c-media chipset.
btw, i've also tried the asio4all driver, though i don't really think that it sounded significant better than itune, it definitely didn't have any noticeable static. this makes me think that something might not be quite right with your setup. you might wanna try it with another computer. have you tried asio4all with other dacs, or just the constantine? you might want to do a little investigation here. although whether asio4all driver actually improves the sound quality is debatable, it definitely should not introduce any static to the sound...
finally, you caught me, i'm not really a head-fi person, so i don't currently own any high-end headphones or headphone amps. i've tried my paradisea+ with both my NAD amp and my Simaudio amp. Regarding power cord, I've only tried Zu Birth and Audioquest Noisebuster. I'm sure there are much better and more expensive power cords out there. the point I've been trying to make is that if you are using a generic computer style power cord (like i was before), then you might want to consider upgrading. but how much you should spend on the power cord is obviously up to your budget and taste. for me, the $40 i paid for the Zu Birth was probably how much i would want to pay, and it made a significant improvement. i'm sure i could spend $1000 for a Tara Lab and get even more improvement, but i'm not willing to spend that kind of money on a power cord.