USB SQ, what can one expect


Have been trying out the USB connection on a Resolution Audio Cantata. The wire I've been using is generic (nothing fancy)and I've been using a Dell laptop using JRiver just to try this out. My problem is that my CD's played on the transport built into the Cantata just sound fantastic, three dimensional, everything and the same CD's ripped to the computer don't hold a candle to it played over the USB. I've also tried some high rez downloads. Is this to be expected or is the problem that I need to optimize the USB playback more. Thanks for any guidance that can be offered.
redcarerra
I love it! Steve is the only engineer in the world who says "Another option for you is to use (his) Off-Ramp 5 ... This will match or beat your CD transport" without ever hearing the CD transport! Truly amazing. Steve, you can contribute, I know you can. I know you can add to these forums without trying to sell or promote your products. Why dont you look at Atmasphere's threads? he offers an incredible amount of info and you would NEVER know what he sells. EVER.
Cerrot - there are too many folks using USB with great results to make your claims credible. Give it up.

Steve N.
Empirical Audio
Cerrot - some might say - you are talking out of your USB port :-)

Perhaps you are correct if you are referring to USB 1.0 ports in both computer and DAC, but with asynchronous USB 2.0 in both - it's a whole different ball game.

Especially if the DAC is designed specifically to handle asynch USB 2.0 data transfers

Is it the best method? - who knows - but it is now so much better than it used to be and if you are that persnickety you'll take another approach.

Once ripped with DBPoweramp - I think anyone will be able to see just how good asynch USB 2.0 can be.

Regards...
Cerrot - please don't interprit this post as me being argumentative, since I am all about getting to the bottom of things and the USB vs S/PDIF debate has been ongoing for some time.

I just did some surfing on the web and found this article, which seems to indicate USB is quite capable of quite high resolution playback. It appears to take a little more "scientific" approach, rather than the "personal observations" posted on many forums, which can be "coloured" by many other factors in any given audio system

http://thewelltemperedcomputer.com/Intro/SQ/USB_SPDIF.htm

EXA's post on this forum supports the above

USB to DAC vs. USB to SPDIF then DAC

But then he made this comment...
Asynchronous USB interfaces are not sensitive to the quality of the USB cable.

I have personally experienced better USB cables do make a discernible difference i.e. in my system!

Since I'm no expert in this field it's always useful to get the opinion of others, so if you could take time to read it and provide some feedback, I for one would appreciate it.

If you know of other counter arguments on the web it would be most helpful

I tend NOT to believe everything I read on the web on first read, so feedback from others is crucial in order to arrive at a more informed conclusion.

If anyone else has "scientific proof" one way or the other, your feedback would also be appreciated - by me at least :-)

Many Thanks in advance