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Fostex HP-A4 32 bit multi-format audio converter D/A and premium Headphone Amplifier

100% Positive Reviews
Rated #67 in DACs

Posted

Pros: Format support, sound quality, amazing build quality

Cons: Front panel easily scratched, low output power

Excuse my English

 

First off the DAC is 24bit no matter if its on PC/Mac/Linux
it Decodes PCM 192K and DSD 2.8/5.6 MHz

 

Build quality: One of the best on the market. the casing of the unit is 3mm thick aluminum. Components on the circuit board are neatly laid out. The HP-A4 have its own power regenerator, therefore inconsistant usb power output during operation don't affect the sound quality much.

 

Sound Quality: I don't have high end headphones, but Low impedance phones really sounds good (<150 ohm). The sound is balanced.

 

Filters: Fast and Slow roll-off for PCM, Low and High cut for DSD. I can't really hear the difference though, but DSD tend to sound better with the Low cut filter.

 

There are also other features:
Optical input and output, can be used as a converter. the output is always on.
RCA output, i also have powered speaker that I use with the HP-A4.

 

Specs from fostex jp website:

 

Output power:

32 ohm load: 100mW

300 ohm load: 20mW

 

DAC chip: Taxas Instrument PCM1792A

Fostex HP-A4 32 bit multi-format audio converter D/A and premium Headphone Amplifier
By:
Description:

Fostex HP-A4 is a new, improved version of the acclaimed HP-A3. It offers up to DSD 5.6MHz and PCM 192kHz for superior audio playback functionality as well as the sophisticated and class-leading appearance of the flagship HP-A8C - See more at: http://www.fostexinternational.com/docs/products/HP-A4.shtml#1

Details:
DetailValue
BindingElectronics
BrandFostex
EAN0636827304221
FeatureAsynchronous transfer mode by using the custom made crystal HI/LO Gain selection (10dB) for wider range of headphones Quick and easy hi-resolution playback in combination with "FOSTEX Audio Player" software Linear PCM audio up to 24bit/192kHz and DSD audio up to 5.6MHz playback - See more at: http://www.fostexinternational.com/docs/products/HP-A4.shtml#1 USB buss powered operation without AC adapter
LabelFostex
ManufacturerFostex
MPNHPA4RB
PublisherFostex
StudioFostex
TitleFostex HP-A4 32 bit multi-format audio converter D/A and premium Headphone Amplifier
UPC636827304221
Package Height2.7 inches
Package Length10.3 inches
Package Weight1.65 pounds
Package Width6.2 inches
PackageQuantity1
PartNumberHPA4RB
ProductGroupCE
ProductTypeNameHEADPHONES
UPCList - UPCListElement636827304221
Models:
Model Name/TypeMPNEAN/UPC
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