PianoForte
Head-Fier
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- Apr 26, 2006
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Does anyone have any information about the Fostex Hp-A7? I posted a truncated version of this in the source forum because it also contains a DAC, but it has an amp, which is why I post this more elaborate version here.
"
FOSTEX New Headphone Amplifier 32bit DAC HP-A7
HP-A7 has various digital input 32bit DAC and high quality headphone amplifier.
It also works as pre-amplifier supplying USB, OPTICAL, COAXIAL, ANALOG inputs.
HP-A7 does not use volume circuit, but direct out system.
Discrete headphone amplifier by TO-220 package big capacity transistor.
HP-A7 mounts 2 headphone output which is different type gain, adopting each impedance.
Adopt high quality 32bit DAC AKM AK4392
Low jitter designed L/R individual DAC power
DC detecting high performance headphone protection system
HP-A7 adopts high quality analog parts, Linear Technology Corporation high performance high through rate OP amplifier, Fostex original customized NICHIKON condenser, TAKMAN ELECTRONICS Precision metal film resistor, Panasonic PPS film condenser and WIMA film condenser.
Pure brass bases and tungsten compound washer suppress vibration."
"Input (USB) Terminal
Sampling Frequency: Maximum 24bit/96kHz
Interface: USB full speed
Input (DIGITAL INPUT-OPTICAL)1,2
Connector: Square type OPTICAL
Format: S/PDIF(32kHz~96kHz)
Input (DIGITAL INPUT-COAXIAL)
Connector: RCA pin jack
Format: S/PDIF(32kHz~192kHz)
Input (ANALOG INPUT)L/R
Connector: RCA pin jack
Output (PHONOES)1,2
Connector: Stereo standard jack
Sensitive: PHONES 1: Low gain / PHONES 2: Normal gain
Maximum Output: 700mW(32 ohms)
Rated Load Impedance : 16~600 ohms
THD: 0.002% or less (1kHz/32 ohms/1Vrms)
Frequency Response: 10Hz~150kHz (± 3dB)
Output (ANALOG)L/R
Connector: RCA pin jack
Rated Load Impedance: 10k ohms or more
THD: 0.002% or less
Frequency Response: 10Hz~80kHz (± 3dB/192kHz)
Output (DIGITAL OUTPUT)
Connector: Square type OPTICAL
Format: S/PDIF(32kHz~96kHz)
Power
DC 15 V
Power100V/ 50,60Hz
Power consumption15W
Dimensions194(W) x 44(H) x 230(D) mm
Weight450g"
I'm looking for a new source (currently have total bithead) and if this is good, it would be convenient to purchase it since I live in Japan, since many if not most components are expensive to ship from the U.S. Opinions, please!
Headphonia information"ette" -http://www.headfonia.com/news/fostex-hp-a7-and-hp-a3-32bit-dacs/
Japanese review: Phileweb Fostex HP-A7 Review
"
FOSTEX New Headphone Amplifier 32bit DAC HP-A7
HP-A7 has various digital input 32bit DAC and high quality headphone amplifier.
It also works as pre-amplifier supplying USB, OPTICAL, COAXIAL, ANALOG inputs.
HP-A7 does not use volume circuit, but direct out system.
Discrete headphone amplifier by TO-220 package big capacity transistor.
HP-A7 mounts 2 headphone output which is different type gain, adopting each impedance.
Adopt high quality 32bit DAC AKM AK4392
Low jitter designed L/R individual DAC power
DC detecting high performance headphone protection system
HP-A7 adopts high quality analog parts, Linear Technology Corporation high performance high through rate OP amplifier, Fostex original customized NICHIKON condenser, TAKMAN ELECTRONICS Precision metal film resistor, Panasonic PPS film condenser and WIMA film condenser.
Pure brass bases and tungsten compound washer suppress vibration."
"Input (USB) Terminal
Sampling Frequency: Maximum 24bit/96kHz
Interface: USB full speed
Input (DIGITAL INPUT-OPTICAL)1,2
Connector: Square type OPTICAL
Format: S/PDIF(32kHz~96kHz)
Input (DIGITAL INPUT-COAXIAL)
Connector: RCA pin jack
Format: S/PDIF(32kHz~192kHz)
Input (ANALOG INPUT)L/R
Connector: RCA pin jack
Output (PHONOES)1,2
Connector: Stereo standard jack
Sensitive: PHONES 1: Low gain / PHONES 2: Normal gain
Maximum Output: 700mW(32 ohms)
Rated Load Impedance : 16~600 ohms
THD: 0.002% or less (1kHz/32 ohms/1Vrms)
Frequency Response: 10Hz~150kHz (± 3dB)
Output (ANALOG)L/R
Connector: RCA pin jack
Rated Load Impedance: 10k ohms or more
THD: 0.002% or less
Frequency Response: 10Hz~80kHz (± 3dB/192kHz)
Output (DIGITAL OUTPUT)
Connector: Square type OPTICAL
Format: S/PDIF(32kHz~96kHz)
Power
DC 15 V
Power100V/ 50,60Hz
Power consumption15W
Dimensions194(W) x 44(H) x 230(D) mm
Weight450g"
I'm looking for a new source (currently have total bithead) and if this is good, it would be convenient to purchase it since I live in Japan, since many if not most components are expensive to ship from the U.S. Opinions, please!
Headphonia information"ette" -http://www.headfonia.com/news/fostex-hp-a7-and-hp-a3-32bit-dacs/
Japanese review: Phileweb Fostex HP-A7 Review