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Fostex HP-P1 Headphone Amp & DAC


Sold Out & Discontinued.

The Fostex HP-P1 is the World’s first portable headphone amplifier with D/A converter which receives it’s audio signal digitally from iPod/iPhone 30-pin dock connector.

Headfonia Review

HiFi HP-P1 Review by Alan Sircom, Aug. 15, 2012

Only iPod/iPhone etc with iOS 4.35 and after are supported and is made for:

iPod Touch (2nd, 3rd, 4th, 5th, 6th Generation)
iPod Classic (6th Generation)
iPod Nano (4th, 5th, 6th, 7th Generation)
iPhone 3, 4, 5, 6, 7 ,8, X

For upgrade cable options for a portable system, see cable options below.

For use with desktop or tablets, Drew recommends using the Silver Dragon V3 LOD to USB or Black Dragon IEM V1 LOD to USB. For New Apple Lightning connector Please order Apple Adapter HERE. And order below the Micro USB B (used with Lightning connector) to Mini USB B or USB A connection. We Can Not do a Micro USB to 3.5mm mini plug. As this is an analog connection and requires a special chip.

These cables can be found in the Mini Cables as well as longer versions of the portable cables listed below. 

Featuring an ultra-high quality 32bit DAC and exclusively designed audiophile analogue circuitry, the sonic performance and fidelity of the headphone signal simply has to be experienced to be believed. The tone, the depth and the effective headroom is nothing short of stunning, giving the impression of almost limitless audio power reserves on tap at all times.

Add to this a 3-step gain control to accommodate all types of headphones, an in-built /PDIF Digital Out, twin digital filters and a rugged, yet cool, aluminum alloy chassis and you simply have the best portable headphone amp for your iPod / iPhone available.

Everything about the Fostex HP-P1 screams quality. - First up is the audio processing. Utilising 32bit AKM’s AK4480 which features innovative on-chip symmetrical circuitry to avoid noise coupling, thus improving sound quality, coupled with 2 filters including a 32-bit minimum delay filter designed specifically for acoustic sounds the HP-P1 delivers exceptional sonic performance, allowing music to ‘flow through’ to your ears in an supremely natural way. Then there’s the build quality and the sheer beauty of the thing. Engineered from aircraft grade aluminium and built to exacting standards, the HP-P1 is a tactile delight to handle and operate.

Exclusive Carry Case Included The HP-P1 comes complete with an exclusively designed carry case which can be clipped to a belt if desired. In addition, a 50mm Dock connector USB cable and a USB power cable (Type A to mini B) are also included.

Main Features

  • Digital connection from iPod/iPhone to HP-P1 via 30-pin dock connector
  • High quality 32-bit DAC (AKM4480) and headphone amp for maximum sound quality
  • Battery or USB powered
  • Hi/Mid/Low 3-step gain control on the headphone out drives all headphone types
  • Auxiliary analog Line Input for other MP3 players
  • S/PDIF Digital Out for professional recording

Check out the latest review from HeadFi TV

Product Reviews

Digital Input

  • Connector: USB type A for Dock Connector iPod/iPhone connection

Analog Input

  • Connector: Stereo mini jack
  • Maximum input: Approx. 3.0 Vrms

Headphone Output

  • Connector: Stereo mini
  • Maximum output power: 80 mW + 80 mW
  • Applicable 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 Out

  • Connector: Stereo mini
  • Nominal output level: -10 dBV
  • Digital Output
  • Connector: Optical
  • Format: S/PDIF format (IEC 60958-3)


  • Connector: USB Type mini B


  • Power supply: Internal lithium-ion battery or USB
  • Charging time: Approx. 5 hours (HP-P1 power at off)
  • Continuous operating time: Approx. 7 hours (iPod/iPhone connected, headphone output, 32Ω, normal temperature)
  • Accessories: 50mm Dock connector USB cable, USB power cable (Type A to mini B) Exclusive carrying case
  • External dimensions: 75(W) x 25(H) x 130(D) mm
  • Weight: Approx. 260 g 

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