Fostex
Fostex HP-A4BL
The Fostex HP-A4BL is a desktop USB DAC and headphone amplifier designed to offer a balanced connection for headphones. It supports playback of 24bit/192kHz PCM and 11.2MHz DSD audio formats, featuring a high-performance Burr-Brown PCM1792A DAC. The unit complies with USB Audio 2.0 for asynchronous transfer up to 192kHz/24bit. It includes a 4-pin XLR balanced output and a 1/4" unbalanced output, with HI/LO gain selection for wider headphone compatibility. The device also offers digital filter selection for adjusting roll-off characteristics and cut-off frequencies.
$479.99
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Owner Satisfaction
4.4
/ 5
Category Rank
706
/ 807
#706 in Headphone Amplifiers
Price vs Category Average
-66%
Below average
Input Interface
2.0
/ USB Hi Speed
Who it's for
- Exceptional Balanced Output
- High-Resolution Audio Fidelity
- Compact and Desktop-Friendly Design
Who should skip it
- Limited Connectivity Options
- Moderate Power for Ultra-Demanding Headphones
- Requires Specific Drivers for PC
Key Specs
Input Interface
USB 2.0 Hi Speed
Supported Sampling Frequencies (USB)
PCM 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz; DSD 2.8MHz, 5.6MHz, 11.2MHz
Quantization (USB)
16bit, 24bit
Digital Input Format
S/PDIF (Optical)
Supported Sampling Frequencies (Digital In)
44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Quantization (Digital In)
16bit, 24bit
PHONES BALANCED Output Connector
XLR (4-pin)
Maximum Output (BALANCED)
300mW or more (32 ohm)
Features
- Equipped with 4-pin XLR balanced output
- Newly developed audio-grade capacitor
- Highly precise crystal with low phase noise
- Playback 24bit/192kHz PCM and 11.2MHz DSD audio
- High performance DAC (Barrbrown PCM1792A)
- Asynchronous transfer up to 192kHz/24bit compatible with USB Audio 2.0
- HI/LO Gain selection (10dB) for wider selection of headphones
- Digital Filter selecting Roll-Off characteristics and Cut-off frequencies
What customers say
Customers consistently praise the Fostex HP A4BL for its exceptional sound quality, noting a clean and detailed audio experience. Many users highlight its robust build and reliable performance, suggesting a product designed for lasting enjoyment. Its ability to elevate headphone listening is a recurring positive, making it a favored choice for those seeking an impactful audio upgrade. The device is often seen as a solid performer, delivering on its promise of high fidelity sound without unnecessary complexity. This focus on core audio excellence and dependable construction resonates strongly with its audience.
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$480