Sony PHA-1A Portable Hi-Res DAC and Headphone Amplifier (Silver)

Model: PHA-1A UPC: 027242886759 Item: 163637


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PHA-1A Portable Hi-Res DAC and Headphone Amplifier (Silver)
$496.00 for two items
Save: $101.99 (17%)

Product Information


  • Battery-powered portable amplifier
  • Built-in USB DAC for ultra hi-res audio
  • Asynchronous USB data transfer
  • 2 Micro USB Type-B ports
  • 1 standard USB Type-A port
  • 1 standard minijack output
  • Rechargeable lithium-ion battery with 6 hour charge
  • Durable aluminum body for a tough amp
  • Includes Walkman and Xperia cables and USB Type-2 cable
  • Includes protective silicone sheet with 2 mounting bands
  • Dimensions: 2.44” W x 4.44” H x 0.75” D
  • Weight: 5.11 oz
  • Warranty: 1 year parts, 90 days labor
  • World Wide Stereo 60-day guarantee and expert product support

More Than a Handheld Stereo System 

Want better headphone sound? Take a look at our Sony PHA-1A High-Res DAC and Headphone Amplifier. In a stereo setup, the amp enriches and modulates sound to the speakers, and with this tough little beauty, you can do the same thing with your headphones. Plus, it’s able to play the very latest high-resolution audio files, giving you incredibly high quality sound, even when you're on the go!  

Small but Tough 

Built to withstand the rigors of portable life, the Sony PHA-1A features an extruded aluminum enclosure, the better for protecting delicate interior circuitry from impact and outside interference. It also sports a fully-integrated front and rear alloy bumpers, the better for protecting terminals from hard knocks. 

Don't Stop the Music 

This Sony DAC allows you to listen on -- and on -- with its built-in, fully-rechargeable lithium-ion battery. It’s good for 6 hours of balanced-audio playback when connected digitally via USB. 

Connect to Literally Anything 

Connect between your music source -- smartphone, tablet, MP3 player, and so on -- and your headphones to truly enjoy the rich, reference-quality sound previously only available on your speaker system. Or use the built-in array of connections to its fullest! With three USB ports -- two micro Type B’s and a standard Type A -- connect your computer and enjoy rich, full sound. A perfect add-on to mate your headphones with your brand-new iPhone 7. 

Music, Fourteen Times Richer 

Want more detail in your music than you can get with MP3s? Now you can. The PHA-1A supports Sony’s latest high-resolution audio formats -- with fourteen times the richness and detail of anything your iPod can offer. Enjoy the very latest music experience on our very latest amplifier. 

Perfectly Responsive 

With a built-in asynchronous USB clock, the PHA-1A supports extremely accurate digital-to-analog (DA) conversions. The ultra-precise clock reduces timing inaccuracies when converting digital 1’s and 0’s into analog waveforms. This results in superior audio with minimal noise and distortion, all the while maintaining sound stage-integrity audio response.



Amplifier Section

  • Impedance : Supported impedance: 8 - 600 Ohm (Normal - High)
  • Amplifier Inputs and Outputs
    • Digital Audio Input(s) : Inputs (2): USB Micro-B input (for PC, Walkman, and Xperia), USB Standard type A (for iPod/iPhone/iPad)


  • Volume Control : Rotary
  • Distortion : 0.01% or less (1 kHz)
  • Sampling Frequency : PCM (PC connection Maximum 192kHz/24-bit)
  • Frequency Response : 10 Hz - 100 kHz


  • Case Type : Aluminum chassis
  • Type of Use : Portable and Home
  • Impedance : Supports: 8 ohms - 600 ohms
  • Power On/Off : Integrated: Rotary power/volume knob

General Specifications

  • Recharging time : Approx. 3.5 hours (Connected to PC) Approx. 2 hours (Via AC-UD10, USB AC Adaptor, sold separately)

Inputs and Outputs

  • Digital Audio Input(s) : Inputs (2): USB Micro-B input (for Computer, Walkman, and Xperia), USB Standard type A (for iPod/iPhone/iPad)
  • DC-In : Inputs (1): USB Micro-B input
  • Output(s) : Output (1): Headphones (stereo mini-jack, only 3-pole supported)


  • Battery Type : Built-in Lithium ion rechargeable battery
  • Power Source : DC 3.7 V: Built-in lithium-ion rechargeable battery DC 5 V: When charging via USB
  • Battery Life (Approx.) : Approx. 6 hours
  • Battery Indicator : Red LED when charging
  • Battery Charging (Approx.) : When connected to computer: Approx. 3.5 hours from empty to full When connected to AC outlet: Approx. 2 hours from empty to full
  • Output Power : Maximum output (when using built-in lithium-ion battery):
    • Approx. 148mW+148mW (8 Ω, 10% distortion)
    • Approx. 80mW + 80mW (32 Ω, 1% distortion)
    • Approx. 26mW+26mW (300 Ω, 10% distortion)

Weights and Measurements

  • Dimensions (Approx.) : 62 mm x 18.5 mm x 1490 mm (2.4" x .73" x .22")
  • Weight (Approx.) : Approx. 5.11 oz. (145 g) - rechargeable battery included



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