Sony PHA-1A Portable High-Resolution DAC and Headphone Amplifier

Model #PHA1A

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Sampling ResolutionPCM: Max 192 kHz/24-bit

Impedance 8 to 600 ohm
Frequency Response 10 to 100,000 Hz
Maximum Output Approximately 148 mW + 148 mW 98 ohm at 10% distortion)
Approximately 80 mW + 80 mW (32 ohm at 1% distortion)
Approximately 16.4 mW + 16.4 mW (300 ohm at 10% distortion)
Input Computer/Walkman/Xperia connecting port, iPhone/iPad/iPod connecting port
Power Source Built-In Lithium-Ion rechargeable battery
Battery Life Approximately 6 hours
Battery Charging Time Approximately 2 hours
Dimensions 2.4 x 0.7 x 4.3" (62.0 x 18.5 x 109.0 mm)
Weight 5.11 oz (145 g)

Packaging Info

Package Weight 0.95 lb
Box Dimensions (LxWxH) 6.1 x 3.6 x 2.6"
Expert Reviews
27 August 2018

Pour conclure, sous des dehors discrets le DAC Sony PHA-1AEU offre d'excellentes performances sonores avec un amplificateur pour casque dont la puissance, si elle n'est pas démentielle, permet cependant d'en profiter pleinement. Un Qobuzissime mérité.

User Reviews
27 April 2018

I've been looking for something to give the music on my phone and Ipod (yes, I still have one) a little more backbone. The Sony PHA-1A is exactly what I've been looking for. It's small enough to be easily carried around but it produces a BIG sound.

  • +

    Makes portable music sound betterEasy to carry with your mobile deviceHolds a good charge

  • -

    A little expensive (but you get what you pay for)

B h photo.34921152
25 June 2015

I use the PHA-1A to play FLAC file 44-192kHz from Nexus 5 mobile phone and Samsung Tab-S tablet, both android. I use the USB Audio Player Pro application on both. I connect the PHA-1A to both devices with the supplied cable (Sony says very little on compatibility, seems the cable is micro-usb to...

Head fi.34992701
24 October 2014

Overall Impressions This is a amazingly looking device, it does not matter how you look at it, it is simply a pleasure to look at. That is the first impact that one have once you look at it, it calls your attention, I even make a point of not keeping it visible when I’m on the go.

  • +

    - looks amazing, built like a tank, gives your iOS device new life

  • -

    - Battery, no proprietary carry case

29 August 2018

Extremely limited application. I plan to return for refund. Team has a similar product with more broad application.

1 June 2018

All good.Thank you

29 May 2018

Works well. Clear sound. Not fatiguing. Excellent construction. Holds battery charge well. Lasts only around 6 hours hence 4 stars.

21 May 2018

I was intending to buy a new Fiio x5 mk3 with an external amp but decided to try this paired with my underused Ipod 6g as it is a somewhat cheaper option. The standard apple cable connects into the usb socket on the base of the PHA-1EU.

6 May 2018

I recently purchased the Sony PHA-1A. I have this coupled with the Sony NW A35 a hi-rez player. I was a bit skeptical that this would significantly improve the sound. However, I was pleasantly surprised. The Sony PHA-1A provided more detail and clarity.

3 May 2018

Great audio, very powerful and well built

20 March 2018

I own both this Sony and also the Teac. They are both terrific pieces of equipment and greatly enhance the listening experience and I actually recommend both. However I will give a slight edge to the Sony in that it does provide an even clearer and more precise interpretation of the music I listen...

  • +

    Great music enhancement. Really makes your headphones pop.Light weight. Good battery life.

  • -

    Kind of expensive but if you're a real headphone fan they are well worth the investment.

Product Highlights
  • Pocket Sized Amplifier Design
  • 192 kHz/ 24-bit PCM Conversion
  • Direct Digital Connection to Mobiles
  • Wolfson DAC with Separate Headphone Amp
  • Durable Aluminum Enclosure
  • Works With MDR-1A and Walkman A10
  • Immersive Three-Dimensional Sound
  • 10 to 100,000 Hz Frequency Response
  • Weighs Only 5 ounces
  • Includes Silicone Band for Mobile Device
Average Expert Score
Average User Score
In The Box
  • Sony PHA-1A Portable High-Resolution DAC and Headphone Amplifier
  • Digital Cable for Xperia
  • Digital Cable for Walkman
  • Micro-USB Cable
  • 2 x Silicone Belts
  • Protection Sheet
  • Limited 1-Year Warranty
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