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Fostex HP-P1 Headphone Amplifier

15 customer reviews
| 10 answered questions

List Price: $799.00
Price: $469.99 & FREE Shipping. Details
You Save: $329.01 (41%)
Only 3 left in stock.
Sold by AudioDeluxe and Fulfilled by Amazon. Gift-wrap available.
  • 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
  • S/PDIF Digital Out for professional recording
  • Hi/Mid/Low 3-step gain control on the headphone out drives all headphone types
  • Auxiliary analog Line Input for other MP3 players
21 new 5 used from $279.99 1 refurbished from $399.99

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$469.99 & FREE Shipping. Details Only 3 left in stock. Sold by AudioDeluxe and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

Fostex HP-P1 Headphone Amplifier + Cable Adapter Female 1/4" 6.3mm to Male 1/8" 3.5mm Plug
Price for both: $486.98

Buy the selected items together

Product Description

The Fostex HP-P1 is a portable headphone amplifier with D/A converter that receives its audio signal digitally from your iPod/iPhone 30-pin dock connector. Featuring an ultra-high quality 32bit DAC and exclusively designed audiophile analog circuitry, the sonic performance and fidelity of the headphone signal simply has to be experienced to be believed. The tone, depth, and 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, aluminum alloy chassis and you simply have the best portable headphone amp available for the iPod or iPhone. Everything about the Fostex HP-P1 screams quality. The audio processing uses 32bit AKM’s AK4480 DAC, which features innovative on-chip symmetrical circuitry to avoid noise coupling, thus improving sound quality. There are 2 filters, including a 32-bit minimum delay filter designed specifically for acoustic sounds. The Fostex HP-P1 delivers exceptional sonic performance, allowing music to "flow through" to your ears in an supremely natural way. Engineered from aircraft grade aluminum and built to exacting standards, the HP-P1 is a tactile delight to handle and operate. 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.

Product Details

User's Guide [242kb PDF]
  • Product Dimensions: 2.8 x 7.1 x 5 inches ; 1 pounds
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B005QM5MD2
  • Item model number: HP-P1
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (15 customer reviews)
  • Amazon Best Sellers Rank: #52,417 in Musical Instruments (See Top 100 in Musical Instruments)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
  • Date first available at Amazon.com: July 14, 2011

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

23 of 23 people found the following review helpful By L. Topper on May 5, 2012
I have both the Fostex HP P1 and the combination ALO Continental/Cyperlab Algorhythm Solo. So I believe that I can compare both. The Fostex is an exceptionally well designed piece. It is good looking and relatively small. It is bigger than an Ipod, but will comfortably fit in a pocket with an Ipod. It is an all in one piece. As such, the battery is called upon to do a lot. The charge does not last very long. I think I get about 5-7 hours from a single charge. It comes with a USB cable and appears to be designed to be charged from the bus on your computer through USB. No problem. It takes longer to charge, but you can simply do it overnight.

With in ear monitors, the Fostex is a splendid performer. An Ipod with recordings in "loss-less" setting or better is simply deadly. I just about never listen to an Ipod (outside of a gym setting) without either the ALO Continental portable headphone amplifier/Cypher Labs Algorhythm Solo DAC/digital transport combination or the Fostex HP-P1. The performance enhancement is revolutionary.

However, the Fostex does not have the juice to make an inefficient headphone sing. For instance, the Sennheiser 650 or Audese LCD2 sounds much better on the ALO/Cypher Labs Algorhythm Solo combo. The Fostex sounds fantastic on probably all earphones and many efficient headphones. The ALO is two pieces and therefore is both bigger and heavier. It is not as convenient for truly portable use. I have the JH Audio-13 and the Fostex drives them extraordinarily well as does the ALO/Cypher Labs Algorhythm Solo.

I have to say that I often prefer (slightly) the sound signature of the ALO/Cypherlab combination. It competes very favorably with an excellent desktop Dac and headphone amplifier.
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14 of 14 people found the following review helpful By Paul on February 3, 2013
Verified Purchase
Let us begin:

It is believed that iPods are made for the great unwashed - A Lossy digital signal is put through a second rate DAC, then a third rate amplifier and the signal is finally made available to your earbuds.

An iPod plays a digital signal. The digital signal goes into a DAC (Digital-to-Analog Converter). The analog signal from the DAC is then Amplified. (EXAMPLE: MP3>DAC>Amp> Headphones).

The Apple Dock Connector can bypass either the Internal Amp (Analog Line Out (ALO)) or bypass the DAC and the Amp (Digital Line Out (DLO)).

An ALO is used by many third party amp makers to provide a cleaner signal to the headphones. (EXAMPLE: MP3>DAC>Apple Dock Analog Line Out>Third Party Amp>Headphones).

A DLO sends the digital signal out of the iPod to be both converted to analog and amplified. (EXAMPLE: MP3>Apple Dock Digital Out>Third Party DAC>Third Party Amp>Headphones).

Just about every Apple dock connector cable is analog out.

One of the few exceptions is the Fostex HP-P1. It uses a proprietary Apple Dock Connector that is digital line out. An iPod makes the digital signal available to the HP-P1. The digital to analog and the amplification is done within the Fostex.

To justify buying the HP-P1, your source MUST be Lossless and the headphones should have a MSRP North of $300.00. Anything less is a total waste of money. Sorry.

Pros: In many respects, this is as good as it gets with portable music.

Weight and Size: The Fostex HP-P1 is half again as big and heavy as an Apple Classic.
Cost: Even with a street price of $650.00, it is still a lot of money.
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4 of 4 people found the following review helpful By Gadget Lover on January 5, 2013
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It may be due to the headphones which are Graco PS-500 Professionals. It seems about 15% cleaner than the DAC from my iPad 3 and the sound is also about 15% louder. The headphones will breakdown at the highest setting, which realistically I should not be listening to them that loud.
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3 of 3 people found the following review helpful By C. Adam on November 27, 2012
Verified Purchase
I usually listen to FLAC files on my laptop and iPhone using DAC applications such as Audirvana (Macbook) and Capriccio (iPhone). They make a difference in sound, bringing out more detail, but in my opinion this Fostex HP-P1 blows those apps out of the water. The Fostex brings a robust detail of highs and lows with the right amount of warmth and coherence in the mids. You'll hear things you've never heard before. It adds a very nice bass punch too. Over the past few days I've run it through my music collection with 80's rock, classical, blues and a little jazz. I have to say that it has been addicting! It has held great dynamics, rhythm, and timing with no listening fatigue. I can't get enough of it.

I'm using B&W P3 Headphones with a 4G iPhone. You can also hook this into your laptop (I use MacBook) with a 3.5mm to 3.5mm connection cable as the Fostex allows for not only USB input but 3.5mm jack input. And you obviously do not have to use only headphones - I tested it with computer speakers (3.5mm line - Logitech USB Laptop Speaker Z305) and it sounded GREAT. This EASILY replaces my NuForce Icon headphone DAC which uses USB. The sound of the Fostex is amazing.

The price seems high but as I start to realize how much I enjoy using it and the versatility, I am starting to forget about that part. It also comes with a well constructed case to hold your iPhone or iPod together with the Fostex but I found it to be a bit of a pain accessing the iPhone screen and playing with inputs.
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