Ports & interfaces
| Digital audio optical out |
1 |
| Audio (L,R) out |
2 |
| Host interface |
PCI |
| Line-in |
Y |
| Microphone in |
Y |
| S/PDIF in port |
Y |
| Line-out |
Y |
| Digital audio coaxial out |
1 |
Technical details
| Dolby technologies |
Dolby Digital Live, Dolby Pro-Logic IIx, Dolby Virtual Speaker |
| OpenAL |
Y |
Audio
| Frequency range |
10 - 90 Hz |
| Audio quality |
24 bit |
| Internal |
Y |
| Audio A/D Converter (ADC) |
24-bit/192kHz |
| Audio system direct 3D sound |
Y |
| Line-in Total Harmonic Distortion (THD) |
0.0002% |
| Line-in Signal-to-Noise Ratio (SNR) |
118 dB |
| Line-out Signal-to-Noise Ratio (SNR) |
124 dB |
| Line-out Total Harmonic Distortion (THD) |
0.0003% |
Xonar Essence ST - 7.1 channel, 124 dB
World's first Precision Clock Tuning for Revolutionary PC Hi-Fi audio
Industry-leading 124dB SNR
Choosing only the best components and finest design, Xonar Essence STX achieves unprecedented 124 dB SNR – 64 times clear than on-board solutions, bringing top-o-the shelf audio experience for audiophiles.
Precision clock tuning for perfect audio
Xonar Essence ST is the world’s first audio card to focus on precision clock tuning to minimize audio jitter. The result is extensive musical details and lively sound image presented for revolutionary experience.
Multi-channel Upgradable
Essence ST is designed to allow full 7.1 surround enjoyment with future upgrade. The high fidelity Xonar H6 multi-channel extension board sold separately in the future provides 120dB signal-to-noise ratio, offering the ultimate surround sound quality ever in the market.
Built-in headphone amplifier
Most quality headphones require extra driving power from amplifier to perform their best, otherwise, they distort and lose details
Driving with Ease and Quality
Xonar Essence STX’s built-in headphone amplifier is ready to drive ANY headphone to it’s full performance stage, with under 0.001% distortion
Designed in Essence to achieve Excellence
EMI-free analog output path
EMI shielding seals all analog output signals perfectly from noise, offering distortion-free audio enjoyment
Independent power for analog signals
Draw additional power from MOLEX ensures the power-sensitive analog signals treated with the cleanest power source
Hyper-Grounding circuitry design
Utilizing multi-layer PCB design to separate audio from noise
