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EarStudio - HUD100 MK2 Hi-Fi USB DAC

HUD100 MK2 | AK4377 DAC Chip | PCM 32Bit/384khz and DSD128 | ARM Cortex | 8 Elaborate Circuit Design | Compatible with Mac or Windows PC, iOS Devices, Android Devices | Versatile Sound Modes | Compact | Jitter Resistant | Led Colors

Rs. 7,290.00 Sale price Rs. 15,999.00
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10 Days Replacement Policy Info All products are covered by 10 Day Replacement Guarantee. This product is eligible for a free replacement, in case you receive a damaged, defective or different item. Please keep the product in its original condition with all accessories & packaging for a successful return. We may contact you to assess the damage or defect before issuing a replacement.

Please note that physical damage cases need to be brought to our notice within 24 hours.

COMPACT, YET HIGH PERFORMANCE: Only 43% Volume Size Compared to ES100MK2. HUD100 provides incredibly powerful performance you can’t expect from such a small device.

YOUTUBE TO HI RES: From YouTube streaming to Hi-Res audio, HUD100 Supports up to PCM 32Bit/384khz and DSD128.

ARM CORTEX: The First portable Dac adopting ARM Cortex processor to implement radsone proprietary algorithms.

ELABORATE CIRCUIT DESIGN: Elaborate 8 Layers circuit design to bring the best audio performance out from such a small size.

HUD100 IS THE FIRST AUDIO DAC TO ADOPT MEMS OSCILLATOR AS A MASTER AUDIO CLOCK: We utilized MEMS oscillator because it provides more clear clocks for all audio circuitry, while conventional crystal oscillator tends to have much more jitter in most situations.


  • BYPASS: Bypass processing mode for pure sound enthusiasts.
  • DCT: Dct Processing mode for users searching for well-dithered analog like sound.
  • DYNAMIC: Radsone-tuned dynamic processing mode for more powerful sound with balance.

HIGH POWER MODE: HUD100 Offers special 2.26Vrms high power output (3.5mm) for high impedance oversized headphone (250 ohm and more)

CONSISTENT FIRMWARE UPDATE: Continuous firmware update will be provided for the best performance of HUD100

COMPATIBLE WITH: Connect directly with Mac or windows PC, ioS device, Android device.


  • Compact, yet high-performance / Plays up to PCM 32bit/384kHz and DSD128 / 45 x 32 x 8mm / 21.5g / USB Type C
  • Jitter-Resilient / The first audio DAC to adopt ARM Cortex processor and MEMS oscillator to implement Radsone's proprietary algorithm and minimize jitter
  • 2 Power x 3 Sound Processing Modes / 1.29Vp Standard, 3.20Vp High Power Output
  • Bypass processing mode for pure sound enthusiasts / DCT processing mode for users searching for well-dithered analog-like sound / Radsone-tuned Dynamic processing mode for more powerful sound with balance
  • Elaborate 8-layer circuit design to bring the best performance out from such a small size



Model Name: HUD100

Product Name: Earstudio HUD100



  • Standard 0.914 Vrms (1.29 Vp)
  • High Power: 2.26 Vrms(3.20 VP)


  • Standard- 105Db(0.00056%)
  • High Power- 102 Db(0.00079%)

Dynamic Range: Standard 118Db

High Power 118Db

Sample Rates: Up to PCM 32bit 384khz, DSD128(Dop)

DAC Chip: AK4377

Desktop Compatibility: Mac OS 10.10 or later windows 7(32/64bit) or later

Mobile Compatibility: Ios 10.3.3/iPhone 6 or later Android 6.0 or later

Dimensions: 45*32*8mm

Weight: 21.5Gram

Package Include:

  • 10cm USBC to C (OTG Included) Cable
  • 12Cm USB A TO C Cable
  • Protective Case
  • Case Holder x 2
  • Double-Sided 3M Sticker x 2
  • Owner’s Manual