【Unused New】Fostex HP-A3mk2 USB DAC

Unused, brand new Fostex HP-A3mk2 USB DAC with a bonus item.
This was purchased as a backup unit, but since my main DAC was sufficient, I am selling it.

This is a Japanese-made USB DAC. While the previous model, the HP-A3, used the AK4390 DAC chip and supported up to 96kHz/32bit, this model, the HP-A3mk2, uses the ES9016K2M and supports up to 192kHz/32bit, a significant upgrade.

In addition to USB-C input, it also supports optical digital input.
It is bus-powered, allowing for a sleek connection.

It is equipped with RCA outputs, allowing it to be used as a standalone DAC and connected to a separate headphone amplifier or speaker power amplifier.

It appears to be capable of driving high-impedance planar magnetic headphones without issue, and is likely to have sufficient driving power for most headphones.

The dimensions are 113 mm (width) x 34 mm (height, excluding rubber feet) x 155 mm (depth, including protrusions), and it weighs approximately 500g. While slightly compact, it offers a full-fledged music experience.

Product Description:

[Equipped with ESS Technology's ES9016K2M DAC Chip]
Utilizing a high-quality DAC chip, the supported sampling frequency has been significantly enhanced from 96 kHz in the HP-A3 to 192 kHz. You can enjoy higher sound quality while maintaining the same ease of use.

[Analog Circuitry Further Improved for Sound Quality]
In line with the increased supported sampling frequency, the analog circuitry has also been newly designed. It achieves performance comparable to higher-end products, including improvements in THD (Total Harmonic Distortion).

[Added Gain Switch for Compatibility with Various Playback Sources]
The gain of the headphone output amplifier can now be switched between HI and LO. In the HI position, the volume is increased by 10 dB compared to the LO position.
The HI position is effective for input signals with low levels, allowing compatibility with a wide range of playback sources.

As a bonus, a new Fujiparts 3.5mm to 6.3mm conversion plug is included.

This is a new, unused item, but it has been stored by an amateur. Please refrain from purchasing if you are looking for a perfect condition item.
Feel free to ask any questions!