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Fostex HP-A3 32-Bit Digital to Analog Converter Headphone Amplifier High reso



Condition : NEW


Brand : FOSTEX
Model Number : HP-A3
Size : 108(W) x 140(L) x 36(H)mm
Weight : 450g

ShippingWeight: 1.0 kg

Description :
Compact 32-bit DAC + high-quality headphone amplifier driven by USB bus power.
The PLL dedicated power supply is mounted, and higher stability is realized by regenerating the power supply. High impedance headphones used in the studio are also equipped with a headphone amplifier that can be driven well
Accessories: Rubber feet (x 4), USB cable (2 m x 1)
USB terminal: Sampling frequency (up to 24bit / 96kHz), interface (USB full speed)
DIGITAL INPUT connector: connector (square optical), format (S / PDIF <32kHz ~ 96kHz>)

Battery: 1 Lithium ion battery
Manufacturer\'s part number HP-A3
Color black
Producing country Japan
Battery type Lithium ion
Digital Media Format Unknown Format
Download file format Unknown format
Media format Unknown format
OS not_machine_specific
Voltage 12 V

Product introduction
Compact 32-bit DAC + high-quality headphone amplifier driven by USB bus power.
Power supply drive by USB bus power.
The PLL dedicated power supply is mounted, and higher stability is realized by regenerating the power supply.
We have a headphone amplifier that can drive high impedance headphones used in the studio.
AKM 32-bit DAC AK4390 is adopted.
Employs carefully selected analog components such as high-definition capacitors for audio and OP amplifiers for high-end audio.
Equipped with a USB / digital (OPTICAL) input selector.
The headphone / RCA (analog) output selector is installed.
The PLL dedicated power supply is mounted, and higher stability is realized by regenerating the power supply.
The high impedance headphones used in the studio are also equipped with a headphone amplifier that can be driven sufficiently.
AKM 32-bit DAC Adopts AKM AK4390.
Employs carefully selected analog components such as high-definition capacitors for audio and OP amplifiers for high-end audio.


USB terminal
Sampling frequency: Up to 24bit / 96kHz
Interface: USB full speed
[DIGITAL INPUT terminal]
Connector: Square optical
Format: S / PDIF (32kHz to 96kHz)

PHONES terminal
Connector: Stereo standard jack
Compatible load impedance: 16 Ohm or more
Maximum output: 100mW (32 Ohm load)
THD: 0.04% or less (at 1kHz, 32Ohm load at 100mW output)
Frequency characteristic: 20Hz-20kHz Plus or minus 0.3dB (at the time of 32 Ohm load 100mW output)
ANALOG OUTPUT (L, R) terminal
Connector: RCA pin jack
Reference output level: -10 dBV
THD: 0.01% or less (at 1 kHz)
Frequency characteristics: 20Hz to 20kHz Plus or minus 0.3dB (reference level)
[DIGITAL OUTPUT terminal]
Connector: Square optical
Format: S / PDIF


Accessories: Rubber foot (x 4), USB cable (1 m x 1)
Dimensions: W108 x H36 (not including feet) x D140 (including protrusions) mm
Body weight: about 450g
Power supply: DC5V (supplied from USB terminal)
Power consumption: 2.5W




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