Summary: First of all I will point this out, when this sound card was released there was nothing like it at a similar price point (let's say <$250) which for it's time meant that it truly made some other products obsolete, especially once you changed the op-amps for ones that were neutral or close to neutral...
Summary: As others have said, the program that comes with it is a disaster, you may spend days trying to figure out what configuration works to actually get any sound. Once it works, it's nice quality.
NOTE: That this is the STX "1" AND not the STX "2"
D. Marcel, Amazon
17 September 2014
Summary: NOTE: That this is the STX "1" AND not the STX "2" Its a little confusing when the title has no separators ( - ) as upon quick review of title one sees "STX 2" I thought i was getting the newer revised card at an excellent price lol.
Superb for music playback, but pretty awful for recording
10 March 2014
Summary: I bought this card when I first built my latest PC, but I ended up returning it. If all you want is a great quality 2 channel sound card for music playback in this price range, then I can highly recommend this card. The sound quality is absolutely superb for the money.
Summary: This card is great for sound quality, but lacks analog outs for surround sound, and there is no EAX support. Good for audiophile music and movies, but don't use this for gaming and definitely not audio production.
Pros: Great audio clarity, and selectable ohm setting for built-in headphone amp
Cons: -Requires a 4 pin molex power connector.
-Useless gimmicky EMI sheild, A clean power supply makes this feature redundant.
-Not a true PCIe card, it's actually a PCI card with a PCIe bridge chip.
-Slow ASIO 2.0 drivers. You're lucky to get 30 or 40ms latency. Forget about 6ms.
-Card is too pricey ...
Summary: This card delivers in all respects. I've always considered a decent sound card to be a 'must' in order to appreciate my music collection. I've previously been using an M-AUDIO 2496. However, the lack of a PCI slot on my new PC has meant that this had to be replaced.
Summary: I had the Xonar Essence ST delivered, despite having ordered the STX. Luckily connectivity wasn't a problem for me and I just went with it. Great card... I can't add more to the existing reviews other then to verify it is great.
Excerpt: звук действительно неестественный, долго слушать даже через foobar с ресэмплингом файлы flac через ASIO неприятно. Как будто робот поет, а не человек. Мой советский магнитофон Яуза 221 после капремонта и настройки звучит на хороших кассетах с винила записанных гораздо приятнее, чем это изделие.
Pros: красивый внешний вид
Cons: звук чуть лучше чем у встроенных карт. Щелчки с интервалом несколько секунд (после перезагрузки исчезают). Примитивные драйвера.