Asus
**B Grade** Xonar Essence STX II 7.1

  • Essence STX II and STX II 7.1 build on the success and huge popularity of ASUS Essence STX

Stock Code: BG-90K-AS

EAN: 00000000

MPN: BG-90K-AS

Manufacturer: Asus

 
 

Product information: **B Grade** Xonar Essence STX II 7.1

Below is the original description for this product, any reference to warranty is to be ignored. Warranty for this item is 90 days as with all B Grade items.

B Grade items may have been used, have damaged packaging, missing accessories or a combination of these.

Some items may have scuff marks or slight scratches but should otherwise be an operable product.

7.1-channel Hi-Fi quality sound card with 124dB SNR clarity, top-notch headphone amplifier and premium TCXO clock source

  • Industry-leading 124dB SNR (signal-to-noise ratio) audio quality inherited from the revolutionary and widely-acclaimed Xonar Essence ST/STX
  • Ultra-low jitter with premium TCXO clock source
  • Clean and consistent power supply thanks to high-fidelity low-dropout (LDO) regulators and WIMA® capacitors for uncompromising sound
  • Top-notch headphone amplifier supports up to 600ohm-headphone impedance with additional gain for in-ear monitors (IEMs)
  • Exclusive op-amp swap kit includes three op-amps and tool for easy tone tuning
  • Celebrated MUSES op-amps deliver true-to-life musicality
  • Ultra-fidelity (120dB SNR) 7.1-channel output via the exclusive daughterboard

KitGuru

“We found that it took a seriously high end system to expose any weaknesses with the STX II, and we doubt that many people spending just over £200 on a dedicated sound card will be disappointed.”

Vortez Hardware

“ASUS and the Xonar team have refreshed and expanded upon the formidable STX design, that will give top class sound quality in your music, movies and games.”

 

 

Keeping the audiophile spirit and philosophy alive

Four 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 better

Industry-leading 124dB SNR

Essence 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

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 (TCXO) 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 (LDO) 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.

Impeccable headphone amplification

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.

Easily adjust the sound for your ears

Three swappable op-amp sockets

Essence STX II benefits from swappable op-amp sockets that allow users to create different timbres and tonal combinations.

 

Additional op-amp swap kit

Essence 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.

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.

 

Specifications

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
8 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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