I purchased this product to try to get around the poor audio quality for my Dell notebook, which produces a high-pitched whine on the headphone output. While the Turtle Beach Audio Advantage does not have the whine, it does produces an audible distortion with its output. Its a buzzing, warbling sound that is correlated to the audio and which is not present when not using the normal headphone out port. I tried multiple USB ports & headphones with the same result. This is when I noticed that the driver is bound to one and only one USB port. If you switch ports, you have to uninstall the old driver, and reinstall it for the new port, and reboot! This has unintended byproduct of resetting the audio levels to maximum, which is loud enough to cause pain. This driver issue is a huge hassle with a laptop, as I have to switch between docking station and laptop USB ports, depending on if its docked or not. All in all, I am very unhappy with the product.