Fostex HP-P1 Headphone Amplifier & DAC

Our Price $469.99 Regular Price $699.99
No Longer Available

$0.00 Tax Outside NY and NJ 


  • 32-bit D-to-A Conversion
  • Digital Connection to iPod/iPhone
  • Headphone Amplifier
  • S/DIF Output
  • Auxiliary Analog Line Input
  • Battery or USB Powered

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The Fostex HP-P1 Headphone Amplifier & D/A Converter is a portable headphone amplifier with a D/A converter that receives its audio signal digitally from your iPod/iPhone 30-pin dock connector. It's designed to provide exquisite tone, depth and effective headroom for unsurpassed sonic performance and fidelity. The HP-P1 features a 3-step gain control to accommodate all types of headphones, as well as a built-in S/PDIF digital out.

This headphone amp employs AKM's 32-bit AK4480 DAC, which offers on-chip symmetrical circuitry to avoid noise coupling, thus improving sound quality. It has two digital filters including a 32-bit minimum delay filter designed specifically for acoustic sounds. Engineered from aircraft-grade aluminum and built to exacting standards, the HP-P1 is a delight to handle and operate. Also included is a carrying case that can be clipped to a belt for easy transport.

Digital connection from iPod/iPhone via 30-pin dock connector

High quality 32-bit D/A converter (AKM4480) and headphone amp for maximum sound quality

Powered by Lithium-ion battery or USB

3-step gain control (high, mid, low) on the headphone out drives all headphone types

Auxiliary line input for other MP3 players

S/PDIF digital out for professional recording

Analog line out for connection to an analog amplifier or a recorder

Unique digital filter -- use regular filter or unique "minimum delay filter" without pre-echo

Housed in a rigid aluminum alloy chassis


More Information
Stock Status No Longer Available
Manufacturer Fostex
Mfr Part No AMS-HP-P1
Upc Number 636827300995
Condition New
Refundable / Cancelable? Yes

Digital Input

USB type A (for dock connector for iPod/iPhone connection)

Analog Input

Connector: Stereo mini jack
Maximum input: 3.0 Vrms (approximate)

Headphone Output


Stereo mini

Maximum Output Power

80 mW + 80 mW

Load Impedance

16 ohms or more

Frequency Response

20 Hz to 20 kHz +/- 0.3 dB (at 32 ohm load, 80 mW output power)

Line Output


Stereo mini

Nominal Output Level

-10 dBV

Digital Output

Digital optical


S/PDIF format (IEC 60958-3)


Power Supply

Internal Lithium-ion battery or USB

Charging Time

Approximately 5 hours 1

Please Note:

HP-P1 power at off


Operating Time

Approximately 7 hours continuous 2

Please Note:

iPod/iPhone connected, headphone output, 32 ohms, normal temperature


External Dimensions

3.0 x 1.0 x 5.1" (75 x 25 x 130 mm) (W x H x D)


9.2 oz (260 g) (approximate)


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