Chat
Contact us
Close contact box
Connect ID #
139 494 387 4
Connect ID #
139 494 387 4
Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  
Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

Thank you. We will be calling you .
We're sorry. We have encountered a problem.

Sony PHA-1A Portable headphone amplifier/USB DAC

Item # 158PHA1

I once lost a whole afternoon listening to Sony's fantastic PHA-3 headphone amp/DAC  — easily among...

I once lost a whole afternoon listening to Sony's fantastic PHA-3 headphone amp/DAC  — easily among...

2 questions - 6 answers

Item # 158PHA1

Shop all Sony Headphone Amps

About the Sony PHA-1A

Dave Bar

A portable high-res powerhouse

I once lost a whole afternoon listening to Sony's fantastic PHA-3 headphone amp/DAC  — easily among the best I've ever heard. But let's be honest, it's a lot more amp than some people will want to invest in. Thankfully, Sony has an outstanding, more budget-friendly alternative for those of us who simply want way better sound from our smartphones, tablets, portable music players, and computers, along with the luxury of enjoying that sound wherever we go. Say hello to the sleek, compact PHA-1A.

A portable high-res powerhouse

I once lost a whole afternoon listening to Sony's fantastic PHA-3 headphone amp/DAC  — easily among the best I've ever heard. But let's be honest, it's a lot more amp than some people will want to invest in. Thankfully, Sony has an outstanding, more budget-friendly alternative for those of us who simply want way better sound from our smartphones, tablets, portable music players, and computers, along with the luxury of enjoying that sound wherever we go. Say hello to the sleek, compact PHA-1A.

Small enough to take almost anywhere, this beautifully made little amp connects between your music player's or computer's digital output and your headphones to deliver the serious punch and clarity your tunes deserve. And for high-res music lovers, the PHA-1A can even decode PCM digital audio signals up to 24-bit/192kHz resolution, so you can enjoy better-than-CD audio quality. Its rechargeable battery supplies the power you need to pump out bigger, bolder sound for up to six hours at a stretch. Your favorite headphones will jump to attention, surprising you with greater bass impact, musical detail, and forceful dynamics.

Versatile connectivity and sturdy construction

Sony PHA-1A headphone amp/DAC

Sony's sleek and portable PHA-1A headphone amp/DAC delivers powerful sound for high-quality listening on the go.

The PHA-1A works with a wide array of devices. Its three separate USB ports give you a direct digital connection for your iPod®/iPhone®/iPad®, Hi-Res Walkman®, a PC or Mac®, plus a charging port. This allows the Sony to bypass the DAC in your player or computer, and decode your tunes with superior audiophile-quality precision.

Built like a Swiss watch, this Sony's rugged aluminum enclosure protects the precision circuitry inside from outside interference and impacts. The recessed volume knob reduces the chance of accidental level changes during playback. Plus, a built-in gain switch around back makes it easier to match the amp's output to a wide variety of headphones — from highly sensitive in-ear monitors to big, high-impedance power hogs.

READ LESS

Product highlights:

  • battery-powered portable headphone amplifier with built-in USB DAC
  • decodes PCM digital audio sources up to 24-bit/192kHz
  • gain select switch provides compatibility for a wide range of headphones and earphones
  • three USB ports:
    • micro type-B input for charging (adapter cable included)
    • micro type-B input for computer, Sony Walkman™, and Xperia™ smartphone or tablet connections (adapter cables included)
    • standard type-A input for iPod®/iPhone®/iPad® devices (these devices must use their own respective cables, not included)
  • Windows and Mac computers supported (free software downloads from Sony's website for playback)
  • built-in lithium-ion rechargeable battery provides up to 6 hours of playback
  • sleek and durable aluminum body
  • recommended headphone impedance: 8-600 ohms
  • frequency range: 10-100,000 Hz
  • 2-7/16"W x 4-7/16"H x 3/4"D
  • weight: 5.11 oz.
  • warranty: 1 year parts, 90 days labor
  • MFR # PHA1A

What's in the box:

  • PHA-1A portable DAC/headphone amplifier
  • 2 Silicone rubber mounting bands
  • Protective silicone rubber sheet (1-5/8" x 3-1/2")
  • 59" Micro USB cable (Type A USB on one end and Micro USB on other end)
  • 8.5" Digital cable for Xperia (Micro USB on one end and proprietary connector on other end)
  • 5.25" Digital cable for Walkman (Micro USB on one end and proprietary WM-Port connector on other end)
  • Startup Guide
  • Reference Guide
  • Listening for a Lifetime booklet
  • Limited Warranty (US)
  • Sony Consumer 1 Year Warranty (Canada)

Customer reviews for Sony PHA-1A

Loading reviews...

Average review:

4.5 out of 5 stars
8 reviews

Thanks for submitting your review

Filter by rating

Customer photos

Customer provided image, click to load a larger version.
Customer provided image, click to load a larger version.

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee review (What's this?)

Reviewed on Samsung.com

This review was collected as part of a promotion

Pros:

Cons:

Crutchfield response
Customer provided image, click to load a larger version.
<< >>

More details on the Sony PHA-1A

Mark G.

Features & specs

Design
Type ---
Built-in Rechargable Battery ---
Built-in DAC Yes
Amplifier Output Specs
Output Power ---
Output Impedance (Unbalanced) ---
Output Impedance (Balanced) ---
Audio Specs
Bit Depth (USB) 24
Max Sampling Rate (USB) 192 kHz
Bit Depth (S/PDIF) ---
Max Sampling Rate S/PDIF ---
S/N Ratio (Unbalanced, in dB) ---
S/N Ratio (Balanced, in dB) 0
THD (Unbalanced) ---
THD (Balanced) 0.01%
Supported File Types
PCM ---
DSD ---
DXD ---
MQA ---
Inputs
Total Inputs 2
USB Type A/MicroUSB
Optical Digital None
Coaxial Digital None
3.5mm Digital None
Stereo RCA Analog None
Stereo 3.5mm Analog None
Stereo XLR Analog ---
Headphone Outputs
3.5mm Unbalanced ---
1/4-inch Unbalanced ---
4.4mm Balanced ---
XLR4 Balanced ---
Other Headphone Outs ---
Line Level & Digital Outs
RCA Line Out None
3.5mm Line Out None
XLR Line Out ---
Subwoofer Out None
Optical Digital Out None
Coaxial Digital Out None
Wireless Connectivity
Bluetooth ---
Wi-Fi ---
Apple-compatible ---
Android-compatible ---
General Info
Width (inches) 2-7/16
Height (inches) 4-7/16
Depth (inches) 0-3/4
Weight 0.5 lbs.
Parts Warranty 1 Year
Labor Warranty 90 Days

Product Research

Features

Overview: The Sony PHA-1A is a battery-powered portable DAC (digital-to-analog converter) and headphone amplifier that lets you listen to high-resolution audio up to 192kHz/24-bit through your headphones. You can connect a PC, an iPod/iPhone/iPad, or a high-res capable Walkman or Xperia to the unit using one of the two USB inputs.

Aluminum Construction: The PHA-1A features a compact aluminum enclosure to protect the inside circuitry and components.

Connections: The PHA-1A has two USB digital inputs: a Type A USB port for connecting an iPod/iPad/iPhone (with the device's cable), and a Micro-B USB for connecting a PC. An extra pin beside the Micro-B USB accommodates the supplied cables for connecting a High-Res supported Sony Walkman or Xperia. Another Micro-B USB, labeled "DC In 5V", is provided for charging the built-in battery using the supplied cable. The front panel features a stereo 3.5mm headphone output that supports impedances from 8 to 600 Ohms. The output is compatible only with 3-pole stereo miniplugs. For this reason, in-line and on-board headphone remote controls will not work.

Controls: The front-mounted large power/volume control knob with plenty of headroom to let you set the volume just where you want it. A 2-position gain switch (normal/high) on the side lets you match the headphone amp to various headphone impedances.

Lithium-ion Rechargeable Battery: The PHA-1A is powered by a built-in 3.7-volt Lithium-ion rechargeable battery. Battery life is approximately 6 hours (operating at 1 mW+1 mW output). The battery charges in approximately 6 hours via USB when connected to a PC. With the optional AC-UD10 USB AC adapter, charging time is only 2 hours.

Compatible Devices: The Sony PHA-1A is compatible with a wide variety of devices (click here for the latest list). With two USB inputs, it can connect to most computers, iPhone/iPod/iPad, and select Sony portable digital audio devices:

  • Computer: The unit can play digital audio files stored on your computer. The unit includes a Micro USB cable for connecting it to your computer's USB Type A port. The PHA-1A is compatible with the following Operating Systems: Windows 8.1, Windows 8, Windows 7 (SP1), Windows Vista (SP2), and Mac OS X 10.6.8 or later. Note: For Windows PCs, you must first install the driver software "Sony Portable Headphone Amplifier USB Audio 2.0 Driver" before connecting the PHA-1A. Playing high-resolution audio files on your computer may require you to download and install "Hi-Res Audio Player" software to your computer.
  • iOS Devices: The PHA-1A is compatible with iPhone, iPad, and iPod. The Type A USB input is provided for connecting the i-device using the USB cable provided with the device. The digital audio data from the device is transferred directly to the DAC, and bypasses the device's internal DAC. On most iOS devices, the maximum resolution played through the PHA-1A is 96kHz/24-bit PCM. Compatible models include:
    • iPhone: 6Plus, 6, 5S, 5C, 5, 4S, 4, 3GS, 3G, iPhone
    • iPad: Air 2, mini 3, Air, mini 2, mini, 4th gen, 3rd gen, iPad 2, iPad
    • iPod:
      • touch: 1st through 5th generation
      • classic: 120GB, 160GB (2009)
      • nano: 2nd through 7th generation
  • Sony Devices: Special digital cables are supplied for connecting the PHA-1A and the following Hi-res Walkman and Xperia devices:
    • Sony Walkman: NWZ-A15/A17, NWZ-F884/F885/F886/F887, NWZ-ZX2/ZX1
    • Sony Xperia Tablets: Xperia Z2 tablet, Xperia Z3 tablet compact
    • Sony Mobile Phones: Xperia A2, E3, M, M2, T2 Ultra, T3, Z Ultra, Z1, Z1 Compact, Z2, Z3, Z3 Compact

Silicone Belts: The PHA-1A is designed to allow you to conveniently attach your portable device to the top. Two silicone rubber bands are provided to strap your portable to the headphone amplifier, and a silicone rubber pad helps to prevent scratches.

Specifications:

  • Frequency Range: 10 Hz - 100 kHz
  • Distortion: 0.01% or less (1 kHz)
  • Supported Impedance: 8Ω - 600Ω
  • Maximum Input: 1 Vrms (Audio in)
  • Maximum Output (with built-in battery):
    • 148 mW + 148 mW (8Ω, 10% distortion)
    • 80 mW + 80 mW (32Ω, 1% distortion)
    • 16.4 mW + 16.4 mW (300Ω, 10% distortion)

Loading accessories...

Customer Q&A

2 questions already asked

Q
Can you charge this device, while using it?
andrew  Jan 25, 2018
3 answers
A
I have to be honest and say I have not tried to do so! But I must say that the time to charge the device on a portable charger I purchased (Insignia NS-MAC2U2NW) is shorter than the Teac (HA-P50) that I also own. And although both devices are outstanding at what they do, the Sony seems to have a longer battery life.
elmer  Feb 18, 2018
A
Never tried
robert  Jan 25, 2018
A
No you can not
david  Jan 25, 2018
Q
how is it possible to play hi 24 bit 196 hz def audio thru iphone with no special software?
napoleon  Oct 07, 2015
3 answers
A
Try Onkyo HF player for iOS. It plays FLAC & DSD!
christopher  Jan 26, 2016
A
No, only 48/44.1 on iOS/iPods. See the link to the Sony site for supported devices on their detail tab.
acofny  Dec 31, 2015
A
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
kristina  Oct 09, 2015 (Staff)

Loading articles...

Compare the sound