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ASUS Essence STX II - Sound card - 24-bit - 192 kHz - 124 dB SNR - stereo - PCIe - ASUS AV100



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ASUS remains committed to delivering ever better high-end sound cards to delight the most demanding audiophiles. Drawing on years of experience in developing Essence STX II delivers meticulous design, quintessential performance and profound musicality - elements that shape the spirit of the whole Essence Hi-Fi series.

ASUS Essence STX II - Sound card - 24-bit - 192 kHz - 124 dB SNR - stereo - PCIe - ASUS AV100
Device Type:
  • Sound card
Form Factor:
  • Internal
Interface Type:
  • PCI Express
  • 4.2 in
  • 6.6 in
Processor / Memory
Signal Processor:
  • ASUS AV100
Audio Output
Sound Output Mode:
  • Stereo
DAC Resolution:
  • 24-bit
Sample Rate:
  • 44.1 kHz (min) - 192 kHz (max)
Signal-To-Noise Ratio:
  • 124 dB
Frequency Response:
  • 10 - 90000 Hz
  • Headphone Amplifier, WIMA capacitor, TCXO clock source
Compliant Standards:
  • Dolby Digital Live, Dolby Virtual Speaker, Dolby Headphone, Dolby Pro Logic IIx
Expansion / Connectivity
  • 1 x audio line-out - RCA x 2
  • 1 x headphones - phone stereo 6.3 mm
  • 1 x audio line-in/microphone - phone stereo 6.3 mm
  • 1 x audio line-out - 4 pin MPC
  • 1 x SPDIF output - RCA
Included Accessories:
  • Op-Amp swap kit
Cables Included:
  • 1 x mini-phone 3.5 mm to RCA cable
  • 1 x S/PDIF optical adapter
  • 1 x mini-phone 3.5 mm to 6.3 mm phone adapter
Software / System Requirements
OS Required:
  • Microsoft Windows 7 (32/64 bits), Microsoft Windows XP (32/64 bits), Windows 8 (32/64 bits), Windows 8.1 (32/64 bits), Windows 10 (32/64 bits)
  • Ultra-low jitter
    A high-precision clock is crucial to audiophiles. Integrated circuits are susceptible to heat and temperature changes, which is why Essence STX II includes a premium temperature-compensated crystal oscillator clock source. It is an ultra-accurate timing technology that ensures ultra-low jitter.
  • Clean and consistent power supply
    Essence STX II uses a dedicated four-pin Molex power connection rather than drawing power from the expansion slot like other cards, and that means a cleaner supply of electricity. Optimized power delivery is further assured with high-fidelity low-dropout regulators - unprecedented in the audio-card industry. As well, audiophile-appreciated WIMA capacitors deliver balanced sound.
  • Celebrated MUSES op-amps
    The profound musicality that Essence listeners expect is encapsulated by celebrated MUSES 8920 and MUSES 8820 op-amps, which deliver true-to-life tonality and spacious sound imaging.
  • True 7.1-channel surround sound that's easy to fit and great to customize
    Exclusive to Essence STX II 7.1 is a multichannel daughterboard that delivers true 7.1-channel surround with high-fidelity 120dB SNR outputs. This easy-to-fit daughterboard slides into a slot adjacent to Essence STX II 7.1, so installation couldn't be more convenient. Each channel is fully customizable with nine swappable op-amp sockets - giving audiophiles complete freedom to create the perfect surround-sound experience for their ears and listening environment.
  • Top-notch headphone amplifier supports
    The built-in headphone amplifier supports up to 600ohm impedance - so audiophiles can plug in the finest high-impedance headphones to enjoy the pure quality delivered by Essence STX II.
  • Exquisite headphone gain control
    ASUS engineers have furnished Essence STX II with an additional gain control designed especially for high-sensitivity IEM headphones, allowing musicians and audio purists to use earpieces that channel audio output straight to the ear canal - isolating ambient noise for listening that requires undisturbed concentration.
  • Three swappable op-amp sockets
    Essence STX II benefits from swappable op-amp sockets that allow users to create different timbres and tonal combinations.
  • Advanced surround sound with instant encoding
    Essence STX II benefits from Dolby Home Theater technologies that turn your PC into a true home-theater system - boosting all your entertainment audio.
  • Dolby Digital Live
    Reproduces Dolby Digital 5.1-channel surround sound, immersing players in exciting and realistic entertainment experiences with high-quality surround that puts you at the center of the action.
  • Dolby virtual speaker
    Reshapes two-channel and 5.1-channel stereo content into virtual surround sound even with just two speakers, reproducing the dynamic, enveloping environment of a 5.1-speaker home theater system.
  • Dolby Pro Logic II
    Transforms high-quality stereo sound into rich and realistic 5.1-channel surround that completely changes your audio perception.
  • Dolby headphone
    Simulates spectacular surround for personal audio by using powerful digital signal processing. It delivers up to 7.1-channel surround over any headphones for more vibrant and spacious listening.

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S16982451 ASUS ESSENCE STX II 886227682638 ASUS Essence STX II new
275.99 USD OutOfStock
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