SKU: 86015327344

Fostex HP-A3MK2 32-Bit D/A Converter With Headphone Amp

$215.55 $239.50
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Description

Fostex HP-A3MK2 32-Bit D/A Converter With Headphone AmpBuilding upon the success of the original, the Fostex HP A3MK2 is a USB DAC that converts digital audio to analog audio. The unit is capable of handling up to a 32 bit, 192 kHz digital audio source from your computer's USB port. Additionally, the HP A3MK2 includes S PDIF optical I O that supports 32 to 96 kHz 32 bit. The HP A3MK2 features a dual RCA line output and a 1 4" headphone output that's powered by integrated headphone amplifier. The unit is

Building upon the success of the original, the Fostex HP-A3MK2 is a USB DAC that converts digital audio to analog audio. The unit is capable of handling up to a 32-bit, 192 kHz digital audio source from your computer's USB port. Additionally, the HP-A3MK2 includes S/PDIF optical I/O that supports 32 to 96 kHz / 32-bit.

The HP-A3MK2 features a dual RCA line output and a 1/4" headphone output that's powered by integrated headphone amplifier. The unit is USB bus powered regardless of input routing choice and does not have a separate AC input. The input and output routing is selectable by front panel selector buttons.

High-Quality Sound Reproduction
  • High-quality sound reproduction can be easily achieved by simply connecting a USB cable to a PC.
  • USB audio and optical digital audio signals from a PC can be converted to analog signals and output from the line output terminal and headphone output terminal.
  • When used as a USB DAC, it operates with the USB Audio 2.0 driver of the PC (Windows or macOS) and supports up to 32-bit/192 kHz. It can be used immediately after connecting the USB cable and performing simple settings.
ESS Technology DAC
  • ES9016K2M from ESS Technology is used as the DAC chip
  • The HP-A3 uses a high-quality DAC chip, and the supported sampling frequency has been greatly enhanced from 24-bit/96 kHz of the HP-A3 to 32-bit/192 kHz. This allows users to enjoy higher quality sound without sacrificing ease of use.
  • S/P DIF input is limited to a maximum of 96 kHz
Improved Analog Circuitry
The analog circuitry has been newly designed to match the higher supported sampling frequency, and has improved THD (Total Harmonic Distortion) and other performance features that are comparable to those of high-end products.
Gain Switch
  • The headphone output amplifier gain can now be switched between Hi and Lo positions, with the Hi position providing a 10 dB increase in volume over the Lo position.
  • The Hi position is effective for low-level input signals and can be used with a variety of playback sources.

Specifications

Number of Headphone Channels
Single Channel
Recommended Headphone Impedance
16 to 300 Ohms
Headphone Output Power
100 mW per Side into 32 Ohms (Max)
20 mW per Side into 300 Ohms (Max)
Digital Chipset
DAC:
1 x ESS ES9016K2M
EQ
No
Display
No
Connectivity
Analog Audio I/O
1x 1/4" TRS Unbalanced Stereo Headphone Output
1x Stereo RCA Coaxial Unbalanced Stereo Line Output
Digital Audio I/O
1x TOSLINK Optical S/PDIF Input
1x TOSLINK Optical S/PDIF Output
USB I/O
1x USB-C 2.0 (Digital Input, Power/Charging Input)
Wireless
No
Performance
Frequency Response
Line Outputs:
20 Hz to 20 kHz ±0.3 dB
Headphone Outputs:
20 Hz to 20 kHz ±0.3 dB (32-Ohm Load, 100 mW)
THD
Headphone Outputs:
< 0.03 dB (1 kHz, 32-Ohm Load, 100 mW)
Digital Audio
Sample Rates
Optical S/PDIF Input:
32 to 96 kHz
Bit Depths
32-Bit
Compatibility
OS Compatibility
Windows 10 or Later / macOS 10.15 or Later
Power
Power Requirements
USB Bus Power
DC Input Power
5 VDC (USB Bus Power)
Power Consumption
2.5 W
Physical
Dimensions
6.1 x 4.4 x 1.3" / 155 x 113 x 34 mm
Weight
1.1 lb / 500.0 g
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 86015327344

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4.5 ★★★★★
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A
Verified Purchase
Alicia
Omaha, US
★★★★★ 5
Love them
Color: White, Size: 15 inches, Color: White, Size: 15 inches
I have these floating shelves all over my house. The are made nice and sturdy and they come with simple instructions. They come it various sizes and can almost fit anywhere. These particular shelves are in my makeup closet and they look so great and organized.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
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callme1040
Massapequa, US
★★★★★ 5
Exceeds my expectations
Color: White, Size: 24 inches, Color: White, Size: 24 inches
Easy to install, exceeds my expectations. I’d buy it again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
M
Verified Purchase
Mariah
Massapequa, US
★★★★★ 5
Beautiful shelves!
Size: 48 Inch, Color: Natural, Size: 48 Inch, Color: Natural
Since new build homes typically don't come with towel rods this was what I envisioned instead. I purchased the hooks separately. The shelves are perfect! I ordered a 36in set as you see with the cream towels and a 48in set that you see with the green towels. They're not loose but not 100% sturdy. I recommend maybe gluing to the wall in addition to the rest and definitely screwing into a stud. They're easy enough to figure out without the instructions. But I will say they're supposed to be screwed in underneath to the rods but they did not come with an appropriate screw for that so I had to use some I already had on hand.
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Reviewed in the United States on May 20, 2025
Verified Purchase
2089991211
Bozeman, US
★★★★★ 5
Nice
Size: 30 Inch, Color: Natural, Size: 30 Inch, Color: Natural
Easy to install..comes with small magnetic leveler which made things even easier! Really nice for the price. Only thing is other than sliding the wood onto the metal brace, there’s only 2 screws that screw wood onto brace so it makes for a slightly wobbly shelf on the brace… although I have 6 screws/anchors holding each brace into the wall so it’s technically quite solid…I’m a bit nervous to keep delicates on the shelves
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Reviewed in the United States on February 16, 2025
L
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Linda M
Cuba, US
★★★★★ 5
Great Shelves! Drywall Anchors are the Bomb!
These shelves are very plain as I hoped they would be so as to not take away from the items displayed. The blue is true to the images so I was impressed by that. Word of knowledge: if you do not hit any studs, don’t use the mollies that came with them; use plastic drywall anchors! They work amazingly well!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026

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