Introduction, Overview, Supplied accessories

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 amplifier 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.

Personal. computer

USB

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 flash in green for alerting. If the indicator still flashes 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.

E-4

HP-P1 specifications

The Fostex HP-P1 is a portable headphone amplifier and digital-to-analog converter (DAC) that caters to audiophiles and music enthusiasts alike. This device cleverly combines high-performance audio technology with portability, making it an invaluable tool for those who wish to enjoy premium sound quality on the go.

One of the standout features of the HP-P1 is its high-resolution audio capabilities. It supports a wide range of formats, including 24-bit/96 kHz playback, ensuring that users can enjoy their music at its finest quality. The HP-P1 utilizes a proprietary DAC, which provides a significant upgrade over standard headphone outputs found in most portable devices. This DAC is responsible for converting digital audio signals into high-fidelity analog signals, creating a rich and immersive listening experience.

In terms of design, the HP-P1 is compact and lightweight, making it easy to carry around. It features a sleek aluminum casing that not only offers durability but also aids in shielding against electromagnetic interference, maintaining the integrity of the audio signal. The device is simple to operate, featuring an intuitive interface with clearly labeled buttons for volume control and source selection.

The headphone amplifier section is another highlight, delivering sufficient power to drive a wide range of headphones, from low-impedance models to higher-end audiophile gear. This versatility allows users to achieve optimal sound quality regardless of their headphone choice.

Connectivity options on the Fostex HP-P1 are robust. It includes a USB input for direct connection to computers and mobile devices, as well as a digital coaxial input for use with external digital sources. Additionally, it features a 3.5 mm headphone output and a line-out for those looking to connect to additional audio systems.

Battery performance is also noteworthy; the HP-P1 is equipped with a rechargeable lithium-ion battery that provides extended playtime, allowing users to enjoy their music without the need for constant recharging. This combination of high-quality audio processing, powerful amplification, and portability makes the Fostex HP-P1 a top contender for any serious audio enthusiast looking for a powerful yet convenient listening solution.