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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4.2 ★★★★★
Based on 19 reviews
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Verified Purchase
Larus
Phoenix, US
★★★★★ 4
Amazon Essentials Mens shirt review - Good shirt, great value.
Fit Type: Slim Fit, Color: Grey, Size: X-Large
First, this is Oxford. This is a tough fabric that looks a little like pinpoint and feels a little like flannel. That is, it does not have the sheen of a dress shirt and is not as thick and soft as flannel. It hits a nice spot in between. The fabric is soft enough and thick enough to wear casually in the heat of summer. (It is cooler than a very thin and very cheap shirt due to it's absorbancy.) The fabric appears and feels to be quality. The cut is good for me. It is tailored enough to look good tucked in and roomy enough for work and play. The seams are doubled and good quality. I did not find mid seam knots, broken threads, etc. Seams are likely very durable. The Goodthreads shirt is a little more expensive. It is a little thicker and softer. It is almost a flannel. However, the thickness and softness caused it to shrink more in the dryer. It loosened OK as I wore it, but I think after multiple washings and dryings, the Goodthreads may get a little tight. I have no concerns with the Essentials. Good shirt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 8, 2020
C
Verified Purchase
Cartripa
Alexandria, US
★★★★★ 5
nice fit
I am thoroughly impressed with this Amazon Essentials white shirt. For the price, the quality is outstanding. The fabric feels soft, breathable, and has a good weight to it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
R
Verified Purchase
rms
Grantham, US
★★★★★ 5
Nice shirt, great price.
Fit Type: Regular Fit, Color: White, Size: Medium
Worn it twice and I find it very comfortable. I wear it outside and casually to protect my arms and neck from the sun and find it more comfortable than a long sleeve t-shirt. The price is comparable. If I was to wear it to the office it would have to be ironed. I bought one shirt to try it and I will be buying more.
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Reviewed in the United States on May 8, 2026
A
Verified Purchase
Anthony Carabello
Battle Creek, US
★★★★★ 4
Nice shirt!
Fit Type: Regular Fit, Color: White, Size: X-Large
I added one of these shirts to another order just to see if they were any good. I was pleasantly surprised by the quality. It fits perfectly and looks pretty nice for a low cost casual dress shirt. Materials seem decent quality. Comfortable, soft fabric. Didn’t shrink too much in the washer and dryer. We’ll see how it holds up long term but so far so good
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Reviewed in the United States on November 12, 2025
M
Verified Purchase
madison
Grantham, US
★★★★★ 5
nice quality
Fit Type: Regular Fit, Color: White, Size: Small
nice quality shirt. bought this just so i had at least one nice white button down and it's great. fits well and is a nice white color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026

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