X7-DAC MQA

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Officially MQA certificated DAC

X7-DAC MQA

Over more than 10 years, with essence of audio technologies, JAVS launched traditional Hi-Fi DA converter that delivers harmonious sound.

Support full decoding MQA (Use JAVS-only MQA driver)

Velvet sound AK4497EQ DAC installed

Support PCM384kHz/NativeDSD 256

Dual super precise Femto Clock installed

High performance XMOS Chip

RTOS (Real Time OS) for IoT software adapted

Various inputs

Moving further via hardware full decoding.

The full decoding operating in hardware is originally equipped that goes ‘unfold’ process twice. You will hear every details of nuance that musician intend.

Please experience true high-end sound through the strongest streaming format MQA that express stunning high resolution and depth.

Hi-Fi sound that close to the original.

Supporting all sample rates that existed

With connections of PCM 384kHz, DXD 384kHz, Native DSD 256 etc, enjoy your music via total three USB type (A, B, Mini) alongside of super precise Femto Clock that support quite but precise Hi-Fi sound.

X7 also supports optical, Co-axial, AES/EBU, I2S (JAVES LINK III) inputs that connecting various sources. Galvanic Isolation, which uses ground to block noises from any external devices, is also adapted on Co-axial & AES/EBU inputs.

Velvet sound for next generation architecture and core technology

AK4497EQ DAC installed

In X7-DAC MQA, VELVET SOUND AK4497EQ DAC from AKM that using SNR 128dB (THD+N:-116dB), which has been used in various Hi-Fi devices, is equipped. VELVET SOUND series maximize performance of audio DAC and guarantee purity of the original audio data for precise audio paly. Its priority is performing high resolution digital audio.

Also, 6 units of HEXAD IV converter circuit that optimized for AK4497EQ are deployed in Spread method. Designed to supply optimized power from RTOS to OPAMP, detailed high-resolution audio play has become available.

XU216-512-TQ128 chipset that provide flexible solution to wide range of audio devices has been adopted.

The chipset is capable of 4000 MIPS (millions of calculation unit per second) process including high speed USB 2.0 PHY, flexible high speed GPIO (versatile input/output), maximum of 32 logical cores. Technology of xCORE series based on zero latency guarantees perfect audio streaming.

Adopted software for RTOS (Real time OS) of IoT analysis sound source in real time with OS. It will make system desynchronization that removes Time Jitter from the system. Applying the RTOS software that converting to analogue, the strongest DA converter that provide perfect data processing.

Power socket also adopted real time distribution via RTOS which provides the best optimization for each phase power.

Yes Femto, NO Jitter

X7-DAC MQA uses 2 units(22.5792MHz & 24.576MHz) of independent super precise Femto Clocks to process data for all input sources. Therefore, even for long time of usage, the device does not affected by the environment so very stable running is available.

High quality Headphones output

Exclusive headphone socket from JAVS that applied OPAMP “AD8397AR” from Analog Device for quick driving power. Designed with full matched TR by JAVS, Class “A” Discrete AMP is added that support from 16Ω to 600 Ω for powerful and dynamic sound.


Sample rate of noise-free and clean power is essential to achieve true Hi-Fi Audio. To achieve smooth and realistic sound, this should be basic.

Size

Specifications

Dimensions / Weight

  • 215mm × 260mm × 67mm / 2.6kg

USB Audio

  • USB A : MAX PCM 32Bit 384kHz, DSD Native 256, DOP 128
  • USB B : MAX PCM 32Bit 384kHz, DSD Native 256, DOP 128
  • USB Mini : MAX PCM 32Bit 384kHz, DSD Native 256, DOP 128

Digital Input

  • OPT: MAX PCM 32Bit 192kHz
  • COAX: MAX PCM 32Bit 192kHz
  • AES/EBU: MAX PCM 32 Bit 192kHz
  • JAVS Link3 (HDMI): MAX PCM 32Bit 192kHz, DSD Native 256, DOP 256

Line Output

  • Type: Balanced XLR (Fix out) MAX 3.0 Vrms
  • Unbalanced RCA (VAR / Fix out) MAX 2.5 Vrms

Ear/Headphone Output

  • Earphone: 3.5mm Stereo mini jack
  • Max Out Level: ± 5Vpp @ 160Ω
  • Output Impedance: 2Ω (Load: 16Ω – 300Ω)
  • Headphone: 6.35mm Stereo phone jack
  • Max Out Level: ± 10Vpp @ 600Ω
  • Output Impedance: 2Ω (Load: 16Ω – 300Ω )

DA Converter

  • AK4497EQ, THD+N: -116dB DR, SNR: 128dB (2.6 Vrms Output)

OPAMP

  • IV Converter: LME49710MA (SMD x 4) PCB Type
  • Differential Amplifier: LME49710MA (SMD x 2) PCB Type
  • Balanced Out: OPA2134 (DIP x 2)
  • Unbalanced Out: OPA2134 (DIP)
  • Ear/Headphone: AD8397AR (DIP) + TR Discrete

Precondition for best sound quality, Clean Power from JAVS is highly recommended.

Product Name : X7-DAC MQA
Release year : Sept 2019
Certification Number : MSIP-REM-JNE-X6-DAC
Distributor : SOUNDCAT
Manufacturer : JAVS
Manufacturing Country : Republic of Korea