Summary: At this point, the X-Fi HD is basically end of life, and it can be difficult to find it new. Even hunting the drivers on Sound Blaster site is getting difficult, it is no longer one of their live products.
Summary: Using them with 250ohm DT770 headphones--sounds great, is able to drive them just fine. Line-in jack seems to pick up noise from the USB cable or something, which I can see being a significant issue if that's important to you. Luckily I'm not using line-in for anything. Solid little device.
Pros: Great sound quality Surprisingly functional drivers Able to drive high impedance headphones
Cons: Interferes with onboard sound card Line-in input picks up noise from USB cable
Good DAC - but beware the 'digital' volume control
J. Blencowe, Amazon
29 October 2014
Summary: This is a pretty nice little device. Here are my favorite Pros: * Powered by USB, so no need for yet another wall-wart * 1/4 " jack connectors are robust and allow for high-end headphones to be plugged straight in.
Sound quality is good. No complaints in that department
Turner Tunes, Amazon
30 July 2014
Summary: Sound quality is good. No complaints in that department. A good solid product with a good price. I would easily give it 5 stars, but the driver software was horrible. It took forever to load the driver and it opened multiple install windows for a simple driver. I haven't loaded to software yet.
Summary: As an audiophile I've been looking for the right solution since I do not have room in my case for an additional card. i was skeptical about a USB sound card but I went ahead and bought this and holy cow I was instantly blown away. The fidelity is great when you plug in a pair of nice phones.