Fostex
Fostex HP-A4
Experience high-resolution audio with the Fostex HP-A4, a compact desktop USB DAC and headphone amplifier. It effortlessly handles PCM audio up to 24-bit/192kHz and DSD up to 5.6MHz, powered conveniently via USB bus. Tailor your listening with HI/LO gain selection for diverse headphones and selectable digital filter characteristics to match your audio sources. Enjoy precise clocking with asynchronous transfer mode and easy setup for high-resolution playback. The HP-A4 offers both RCA analog outputs and optical digital outputs, making it a versatile centerpiece for your audio setup.
$399.99
More HP-A Options
Owner Satisfaction
4.5
/ 5
Category Rank
581
/ 807
#581 in Headphone Amplifiers
Price vs Category Average
-71%
Below average
Input Sampling Frequency
241925.6
/ up to -bit/ kHz (PCM), MHz (DSD)
Who it's for
- Pristine Audio Fidelity
- High-Resolution DSD Support
- Compact Desktop Design
Who should skip it
- Modest Headphone Power
- Basic Connectivity Suite
- Dated Feature Set
Key Specs
Input Sampling Frequency
up to 24-bit/192 kHz (PCM), 5.6 MHz (DSD)
USB Interface
High-speed USB
Digital Input Connector
Optical, Square S/PDIF (16-bit/24-bit: 44.1 – 192 kHz)
Headphone Output Max Power
100 mW (32 ohms loaded)
Headphone Output THD
less than 0.04% at 1 kHz, 32 ohms loaded, 100 mW
Headphone Output Frequency Response
20Hz - 80kHz +/-3dB
Analog Output Connector
RCA pin
Analog Output Reference Level
2Vrms
Features
- Supports high-resolution PCM and DSD audio
- USB bus powered for simple setup
- HI/LO gain for headphone compatibility
- Asynchronous transfer for accurate sound
- Selectable digital filters for source matching
- Compact desktop design
- Easy high-resolution playback
What customers say
Customers consistently praise the Fostex HP A4 for its exceptional sound quality, noting a clear and detailed audio experience that significantly elevates their listening. Many appreciate its straightforward plug and play functionality, making it incredibly easy to integrate into existing setups without complex configurations. This combination of superior audio performance and user friendly operation makes it a highly regarded choice among enthusiasts.
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$400