Sony PHA-1A
Portable hi-res DAC / headphone amplifier

  • Sale
  • $ 299.99

Sony PHA-1A Portable Hi-Res DAC / Headphone Amplifier allows you to easily connect to your portable digital music device or PC via USB input to enjoy powerful hi-res audio on the go. PHA-1A supports audio file formats up to 192kHz / 24 bit. The hi-res DAC and amplifier circuitry complete with lithium-ion battery ensure you make the most of your music wherever you go.     


  • 14x the detail of MP3s—affords a powerful high resolution audio experience through your headphones and can decode a variety of Hi-Res PCM audio file formats up to 192kHz / 24 bit format
  • Multiple connection options—compatible w/ a wide variety of digital devices and features a standard USB type A connection that is ideal for digital interconnectivity to compatible iOS® and other devices. A second micro-USB is good for digital interconnectivity w/ compatible Walkman® or Xperia® devices. A third micro-USB connector provides for charging the device using a USB AC adaptor (sold separately)
  • High-quality amplification circuits—WM8740 Wolfson DAC samples PCM audio up to 192kHz / 24 bit and the LME 49860 operational amp delivers outstanding signal and performance w/ ultra-low distortion, low noise and high slew rate. A high bandwidth TPA6120 headphone amp minimizes noise, delivering more than 120dB of dynamic range to ensure music is heard w/ every detail
  • Super-smooth audio—an internal, asynchronous USB 2.0 clock supports the highly accurate conversion of digital signals to analog sound. This precision clock signal generator also reduces timing inaccuracies when converting digital signals into analog waveforms. The result is superior audio performance w/ minimal noise and distortion.  
  • Built to last—a compact aluminum enclosure protects the delicate internal circuitry from outside interference and impacts while alloy bumpers protect the volume knob from external impact
  • Rechargeable lithium-ion battery—the internal rechargeable battery provides approximately 6 hours of Hi-Res music playback when connected digitally via USB input
  • Flexible headphone support—a two position, side mounted gain switch allows you to optimize amplifier output levels to match varying headphone impedances ranging from 8 to 600 ohms. Select between low or high settings to maximize your listening experience
  • Supplied accessories—PHA-1A comes w/ the following: digital connecting cables for both Walkman and Xperia silicone, one micro-B USB cable for PC and Mac®, two mounting bands, and one protective sheet. 
  • Amplifier Supported Impedance: 8 - 600 ohms
  • Audio Distortion: 0.01% or less
  • Audio Frequency Response: 10Hz - 100kHz
  • Audio Sampling Frequency: PCM (PC connection maximum 192kHz / 24 bit)
  • Audio Volume Control: rotary
  • Case Type: aluminum chassis
  • Impedance: supports 8 - 600 ohms
  • Power ON / OFF: integrated: rotary power / volume knob
  • Type of Use: portable and home
  • Recharging Time: approx. 3.5 hours (connected to PC) approx. 2 hours (via AC-UD10, USB AC adaptor sold separately)
  • DC-In: Inputs: USB Micro-B input (1)
  • Digital Audio Inputs: USB Micro-B input, USB standard type A (2)
  • Outputs: headphones (stereo mini-jack, 3-pole supported) (1)
  • Battery charging: when connected to a computer approx. 3.5 hours from empty to full; when connected to AC outlet approx. 2 hours from empty to full
  • Battery Indicator: red LED when charging
  • Battery Life: approx. 6 hours
  • Battery Type: built-in lithium-ion rechargeable battery
  • Output Power: maximum output (when using built-in lithium-ion battery) Approx. 148mW + 148mW; approx. 80mW + 80mW; approx. 26mW + 26mW
  • Power Source: DC 3.7 V: built-in lithium-ion rechargeable battery DC 5 V: when charging via USB
  • Dimensions: approx. 2.4"h x .73"w x .22"d
  • Weight: approx. 5.11 oz including rechargeable battery
60-Day Money-Back Guarantee

We want you to love every item you purchase from SKY by Gramophone. If you are not satisfied with your purchase, you may return items that are complete and like-new for any reason within 60 days. You may choose an exchange or a refund for the full amount of the items you purchased*. Refunds must be issued to the same credit card, debit card, gift certificate, or other form of payment used in the original transaction.

SKY by Gamophone is an authorized dealer for all products we carry, which means manufacturer warranties are valid on every product purchased from us.

In the unlikely event a television arrives damaged, we require notification of damages within 24 hours of receipt of the unit.

*Restocking fees apply for furniture and televisions, as well as for products without original packaging, missing accessories, and not in new or like-new condition.

~ Shipping fees are factored into all furniture prices ~

Product Reviews

Based on 2 reviews Write a review



Sold Out