Decent price, kept me updated with progress, well packed (and they chucked in some sweeties!) and good delivery. Great service overall.Read on Google
Keeping the audiophile spirit and philosophy aliveFour years after the debut of Essence STX — the long-term holder of the number-one position in Head-Fi's Sound Cards segment, as voted by highly-satisfied users globally — 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 One, Essence STU and Essence III, Essence STX II delivers meticulous design, quintessential performance and profound musicality — elements that shape the spirit of the whole Essence Hi-Fi series. |
Legendary audio quality that just got betterIndustry-leading 124dB SNREssence STX II delivers industry-leading 124dB SNR audio clarity, a much-envied quality inherited from the revolutionary and widely-acclaimed Essence STX sound card — and up to 64 times (64X) better than typical onboard audio hardware. Headphone output reaches a fantastic 120dB SNR.
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Ultra-low jitterA 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 (TCXO) clock source. It is an ultra-accurate timing technology that ensures ultra-low jitter.Clean and consistent power supplyEssence 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 (LDO) regulators — unprecedented in the audio-card industry. As well, audiophile-appreciated WIMA® capacitors deliver balanced sound. Celebrated MUSES op-ampsThe 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
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Impeccable headphone amplificationTop-notch headphone amplifier supportsThe 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 controlASUS 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.
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Easily adjust the sound for your earsThree swappable op-amp socketsEssence STX II benefits from swappable op-amp sockets that allow users to create different timbres and tonal combinations. Additional op-amp swap kitEssence STX II even comes with a swap kit that includes three additional op-amps — two Texas Instruments LME49720s and one MUSES 8820 — and a clamp tool that makes it easy to remove the op-amp microchips.
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| Audio Interface | PCI Express |
| Audio Performance | Output Signal-to-Noise Ratio (A-Weighted) (Front-out) : 124 dB Output Signal-to-Noise Ratio (A-Weighted) (Headphone-out) : 120 dB Input Signal-to-Noise Ratio (A-Weighted) : 118 dB Output THD+N at 1kHz (Front-out) : >0.0003 %(-110 dB) Output THD+N at 1kHz (Headphone-out) : >0.001 %(-100 dB) Frequency Response (-3dB, 16bit/44.1KHz input) : 10 Hz to 90 KHz Output/Input Full-Scale Voltage : Line output (RCA, 3.5) : 2 Vrms (5.65 Vp-p) Headphone output : 7 Vrms ( Vp-p) |
| Chipset | Audio Processor :ASUS AV100 High-Definition Sound Processor (Max. 192KHz/24bit) |
| Digital-to-analog Converter(DAC) | TI Bur-Brown PCM1792A |
| Sample Rate and Resolution | Analog Playback Sample Rate and Resolution : 44.1K/48K/96K/192KHz @ 16bit/24bit Analog Recording Sample Rate and Resolution : 44.1K/48K/96K/192KHz @ 16bit/24bit S/PDIF Digital Output : 44.1K/48K/96K/192KHz @ 16bit/24bit ASIO Driver Support : 44.1K/48K/88.2K/96K/176.4K/192KHz @ 16bit/24bit |
| Connectivity | Analog Output 1 x 6.3 mm jack (1/4") Headphone out 2 x RCA (Un-Balanced) Analog Input 1 x 6.3 mm jack (1/4") (Line-in/ Mic-in combo) Digital 1 x S/PDIF out (1 x Coaxial) 1 x Front-Panel Header |
| Special Features | Dolby® Technologies : Dolby® Digital Live/Dolby® Headphone /Dolby® Virtual Speaker /Dolby® Pro-Logic II |
| Operating System | Windows® 8.1 , 32bit/64bit Windows® 8 , 32bit/64bit Windows® 7 , 32bit/64bit Windows® XP , 32bit/64bit |
| Accessories | Op-amp swap kit x 1 3.5mm-to-RCA cable x 1 6.3mm-to-3.5mm adapter x 1 S/PDIF adapter x 1 Driver CD x 1 Quick start guide x 1 |
| Dimensions | 168 x 107 mm ( L x W ) |
| Note | Op-amp swap kit content: 1 x Needle-nose pliers 2 x LME49720 1 x MUSES8820 |
| Audio Interface | PCI Express |
| Audio Performance | Output Signal-to-Noise Ratio (A-Weighted) (Front-out): 124 dB Output Signal-to-Noise Ratio (A-Weighted) (Headphone-out): 120 dB Input Signal-to-Noise Ratio (A-Weighted): 118 dB Output THD+N at 1kHz (Front-out): >0.0003 %(-110 dB) Output THD+N at 1kHz (Headphone-out): >0.001 %(-100 dB) Frequency Response (-3dB, 16bit/44.1KHz input): 10 Hz to 90 KHz Output/Input Full-Scale Voltage : Line output (RCA, 3.5): 2 Vrms (5.65 Vp-p) Headphone output: 7 Vrms ( Vp-p) |
| Chipset | Audio Processor:ASUS AV100 High-Definition Sound Processor (Max. 192KHz/24bit) |
| Digital-to-analog Converter(DAC) | TI Bur-Brown PCM1792A |
| Sample Rate and Resolution | Analog Playback Sample Rate and Resolution: 44.1K/ 48K / 96K / 192KHz @ 16bit / 24bit Analog Recording Sample Rate and Resolution: 44.1K / 48K / 96K / 192KHz @ 16bit / 24bit S/PDIF Digital Output: 44.1K / 48K / 96K / 192KHz @ 16bit / 24bit ASIO Driver Support: 44.1K / 48K / 88.2K / 96K / 176.4K / 192KHz @ 16bit / 24bit |
| Connectivity | Analog Output 1 x 6.3 mm jack (1/4") Headphone out 2 x RCA (Un-Balanced) Analog Input 1 x 6.3 mm jack (1/4") (Line-in/ Mic-in combo) Digital 1 x S/PDIF out (1 x Coaxial) 1 x Front-Panel Header |
| Special Features | Dolby® Technologies: Dolby® Digital Live Dolby® Headphone Dolby® Virtual Speaker Dolby® Pro-Logic II |
| Operating System | Windows® 8.1, 32bit / 64bit Windows® 8, 32bit / 64bit Windows® 7, 32bit / 64bit Windows® XP, 32bit / 64bit |
| Accessories | Op-amp swap kit x 1 3.5mm-to-RCA cable x 1 6.3mm-to-3.5mm adapter x 1 S/PDIF adapter x 1 Driver CD x 1 Quick start guide x 1 |
| Dimensions | 168 x 107 mm L x W |
| Note | Op-amp swap kit content: 1 x Needle-nose pliers 2 x LME49720 1 x MUSES8820 |
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