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User Manual for Fostex HP-A4 24-Bit USB DAC Headphone Amplifier Click to enlarge the picture
Contents of the user manual for the Fostex HP-A4 24-Bit USB DAC Headphone
- Product category: AD/DA Converters Fostex
- Brand: Fostex
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Fostex AD/DA Converters
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User manual for the Fostex HP-A4 24-Bit USB DAC Headphone contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Fostex product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Fostex user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Fostex product will considerably shorten its lifespan!
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Product description The HP-A4 24-Bit USB DAC Headphone Amplifier from Fostex supports PCM audio up to 24-bit/192kHz and DSD audio up to 5.6MHz. It features a front-panel 1/4" stereo headphone output, rear-panel stereo RCA outputs, and optical S/PDIF I/O. The HP-A4 has 2 gain staging levels, allowing you to boost the output of the amp by 10dB without needing to touch the volume knob. The selectable filter allows you to cut-off lower frequencies if desired. A USB cable and 4 rubber feet are included. - Linear PCM audio up to 24-bit/192 kHz and DSD audio up to 5.6 MHz playback
- High-resolution playback in combination with "FOSTEX Audio Player" software
- HI/LO Gain selection (10 dB)
- Asynchronous transfer mode using custom-made crystal
- Digital filter with selectable roll-off and cut-off characteristics
- Complies with USB Audio Class 2.0 on Windows XP (SP2 or later), Vista, 7, 8 and Mac OS X 10.6 or later
- microSD (SDHC) card drive on the rear panel for future firmware updates
UPC: 636827304221 In the Box Fostex HP-A4 24-Bit USB DAC Headphone Amplifier 1m USB Cable 4 x Rubber Feet Limited 1-Year Warranty Table of Contents
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Technical parametersFostex HP-A4 Specs | | | Sampling Frequency | Up to 192 kHz (PCM)
Up to 5.6 MHz (DSD) | | Bit Depth | Up to 24-bit | | Connector | 1x USB high speed
1x S/PDIF TOSlink (16/24-bit, 44.1 to 192 kHz) | | | | Connector | 1x 1/4" (6.3 mm) stereo headphone output
2x analog RCA outputs
1x S/PDIF TOSlink (16/24-bit, 44.1 to 192 kHz) | | Maximum Output | 100 mW (32 Ω loaded)
RCA Outputs: 2 Vrms reference output level | | THD | Headphone Output: Less than 0.04% at 1 kHz, 32 Ω loaded, 100 mW
RCA Outputs: Less than 0.01% at 1 kHz | | Frequency Response | 20 Hz to 80 kHz +/-3dB (1 kHz, 32 Ω loaded, 100 mW, FS 192 kHz)
RCA Outputs: 20 Hz to 80 kHz +/-3 dB (at FS 192 kHz) | | | | SD Card Slot | 1x microSD slot (for firmware updates) | | Compatibility | Windows: XP (SP2 or later), Vista, 7, 8
Mac: OS X 10.6 or later | | Power | USB bus powered | | Power Consumption | 2.5 W | | Dimensions (W x H x D) | 4 x 1 x 6" (113 x 34 x 155 mm), excluding protruded parts | | Weight | 17 oz (500 g), approximate | | | | Package Weight | 1.7 lb | | Box Dimensions (LxWxH) | 10.3 x 6.3 x 1.9" |
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