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Introduction
Thank you very much for purchasing the Fostex
HP-P1.
To ensure the best performance, read this manual
thoroughly before using the unit. Keep this manual
handy for future reference.
Overview
The Fostex HP-P1 is the high performance portable
headphone amplier featuring 32-bit stereo DAC.
It converts digital audio signals from your iPod or
iPhone into analog audio signals. The converted
analog signal is output from the headphone and
line output jacks. The DA conversion section em-
ploys the newly-developed AKM AK4480, a high
performance 32-bit stereo DAC.
The HP-P1 also features the digital-to-digital con-
version function that allows to convert iPod or
iPhone digital audio data into an S/PDIF signal and
feed it from the [S/PDIF] output.
Supplied accessories
The following are supplied with the HP-A3.
• Dock Connector to USB cable x 1
•
USB mini-B to USB A cable for battery charging x 1
• Carrying case x 1
• Owner’s manual (this manual) x 1
After purchasing the HP-P1, check all the accesso-
ries are included in the package.
Power supply
The HP-P1 runs on the lithium-ion battery integrat-
ed with in the unit.
You can charge the battery from your personal
computer that is USB-connected to the unit.
When you purchase the unit, the battery is not
fully-charged. Therefore, it is recommended to fully
charge the battery before using.
Note that even when the battery is exhausted, you
can use the unit by USB-connecting to your per-
sonal computer.
Charging the battery
You can charge the internal battery by USB-
connecting a personal computer to the [DC-IN]
port (USB mini B) using the supplied USB mini-B to
USB A cable.
You can charge the battery even when the power of
the HP-P1 is off.
USB
Personal.
computer
While the battery is being charged, the status in-
dicator on the top panel lights in green. When the
battery is fully charged, the indicator turns off.
Note that, if your iPod or iPhone is connected, the
indicator lights in orange while the battery is being
charged, or lights in red when the battery is fully
charged.
<Memo>:Do not leave the unit in an extremely
hot place, such as an overheated car. The bat-
tery must be charged in a normal temperature
environment.
When the unit is left in a hot or cold place, the
status indicator may ash in green for alerting.
If the indicator still ashes in green after leaving
the unit in a normal temperature environment
for about one hour, consult your local Fostex
dealer or service station.
Status indicator lighting conditions
Lit in red When the power is on while an iPod/
iPhone is connected.
Lit in green While charging
Lit in orange While charging when the power is on
and an iPod/iPhone is connected.
Unlit When the battery is fully charged or
when the power is off.