Fostex HP-A4BL High-Resolution DAC / Balanced Headphone Amplifier
Features
- Balanced Headphone Output: 4-Pin XLR
- Unbalanced Headphone Output: 1/4"
- Up to 24-Bit/192 kHz PCM Support
- Up to 11.2 MHz DSD Support
- USB 2.0 Input
Description
The HP-A4BL High-Resolution DAC / Balanced Headphone Amplifier from Fostex is a high resolution digital-to-audio convertor and balanced headphone amplifier well suited for professional audio engineers, mastering engineers, and audiophiles. The HP-A4BL supports PCM audio up to 24-bit/192 kHz and DSD audio up to 11.2 MHz. The front-panel offers a balanced 4-pin XLR headphone output, an unbalanced 1/4" stereo headphone output, while the rear-panel offers stereo RCA outputs, optical S/PDIF I/O, and a USB 2.0 connector. The HP-A4BL has 2 gain staging levels, allowing you to boost the output of the amp by 10 dB without needing to touch the volume knob. The selectable filter allows you to cut-off lower frequencies if desired. The HP-A4BL ships with a power supply, USB cable, and 4 rubber feet.
Features
- Equipped with 4-pin XLR balanced output
- 1/4" / 6.35mm unbalanced output
- Newly developed audio-grade capacitors
- Highly precise crystal with low phase noise
- Playback 24-bit/192 kHz PCM and 11.2 MHz DSD audio
- High performance DAC (Burr-Brown PCM1792A)
- Asynchronous transfer up to 192 kHz/24-bit compatible with USB Audio 2.0
- HI/LO Gain selection (10 dB) for wider selection of headphones
- Digital Filter selecting Roll-Off characteristics and Cut-off frequencies
Specifications
Input | |
Sampling Frequency | PCM: 44.1 to 192 kHz DSD: 2.8 to 11.2 MHz |
Bit Depth | 16/24-bit |
Connector | 1x USB 2.0 high speed 1x S/PDIF Optical (Square) (16/24-bit, 44.1 to 192 kHz) |
Output | |
Connector | Balanced Headphone: XLR (4-pin) Unbalanced Headphone: 1/4" / 6.3 mm Line Output: 2x analogue RCA outputs S/PDIF Digital: Optical (Square) (16/24-bit, 44.1 to 192 kHz) |
Maximum Output | Headphones: 300 mW or more (32 Ohms loaded) RCA Reference Output Level: 2 Vrms (0 dbFS) |
Load Impedance | Headphones: 16 to 600 Ohms Line Output: <10 kOhms |
THD | Headphone Outputs: Less than 0.04% at 1 kHz RCA Outputs: Less than 0.01% at 1 kHz |
Frequency Response | Headphones: 20 Hz to 80 kHz ±3 dB (32 Ohms, 100 mW) RCA Outputs: 20 Hz to 80 kHz ±3 dB Digital: 44.1 to 192 kHz |
General | |
SD Card Slot | 1x microSD slot (for firmware updates) Format: FAT32 Compatible Card: microSD card (SDHC), up to 32 GB |
Power | Power Supply: 12 VDC, 1.5 A |
Dimensions (W x H x D) | 150.0 x 34.0 x 157.0 mm, excluding protruded parts |
Weight | 630.0 g, approximate |
In The Box
- Fostex HP-A4BL High-Resolution DAC / Balanced Headphone Amplifier
- AC Power Adapter
- USB Cable
- 4 x Rubber Feet
- Limited 1-Year Warranty
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Details
- Product: Fostex HP-A4BL High-Resolution DAC / Balanced Headphone Amplifier
- Manufacturer: Fostex
- Model: HP-A4BL
- SKU: HP-A4BL
- RM Product #: 42894