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Fostex HP-P1 Headphone Amplifier

| 9 answered questions

List Price: $799.00
Price: $485.77 & FREE Shipping. Details
You Save: $313.23 (39%)
Only 5 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
20 new 2 used from $394.50 2 refurbished from $399.99

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  • Buy Used and Save: Buy a Used "Fostex HP-P1 Headphone Amplifier" and save 50% off the $799.00 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Frequently Bought Together

Fostex HP-P1 Headphone Amplifier + FiiO L9 L-Shaped Line Out Dock (LOD) Cable For iPod and iPhone - L9
Price for both: $495.76

Buy the selected items together

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)
  • Shipping: Currently, item can be shipped only within the U.S.
  • 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 (14 customer reviews)
  • Amazon Best Sellers Rank: #52,229 in Musical Instruments (See Top 100 in Musical Instruments)
  • Date first available at Amazon.com: July 14, 2011

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.

Customer Reviews

Quality construction and performance!
C. A. Bayko
The rest of the sound spectrum sounds great.
L. Topper
I have to say that it has been addicting!
C. Adam

Most Helpful Customer Reviews

20 of 20 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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13 of 13 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 justsomeguy01 on April 5, 2013
Verified Purchase
I would call myself a 'dabbler' in the audiophile world, only able to test amps, dacs and cans within a limited budget due to me being a college student only carrying chump change. I do invest in what I believe to be good though, and this would be one of the products I've 'invested' in. For a start, this product is a definite step-up in SQ compared to that of the iPod classic (admittedly not tough to beat, as even a Zen X-Fi has better SQ on its own), verified not just by myself, but 3 other 'blind testers' whom I've let try this product out - a clarinet player, a (very good) bassist and a non-music playing bass-head. I cannot pinpoint 'where' the sound is better, because everything sounds better in general. The DAC in the HP-P1 is definitely of a good quality.

On to the amplification, there are 3 gain settings, default, medium and high. I keep to different settings for the different cans I own, default for my Audiotech ESW9A as the bass reaches fatiguing levels, medium for my Beyerdynamic DTX100 and Westone ES5. The gain is adequate and gives a noticeable difference to the sound, making everything seem 'tighter' and clarifying the soundstage, at the expense of drowning out the very subtle audio cues in the background. What I have found is that the HP-P1 gives better performance the better your cans/monitors are; the increase in enjoyment using my ESW9 or DTX100 is low as compared to the cost for this increase, while I consider it money well-spent when paired with my ES5.

I wouldn't call this a must-have for anyone considering it's clearly a luxury good. It depends on how much enjoyment you get out of your music and your priorities/cash-flow at the moment. For me, it was a painful purchase on a student's budget, but I've never regretted owning this amp for one day.
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Most Recent Customer Reviews