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The Sony PHA-1 Portable Headphone Amplifier and USB DAC can be used for portable audio playback from analog and digital audio sources such as compatible computers or iOS devices. It has a built-in digital to analog converter with asynchronous digital transfer to reduce jitter. It supports sampling frequencies up to 24-bit/96kHz. The PHA-1 has a micro-USB input for use with compatible computers as well as a dedicated digital input for iOS devices. It also supports analog audio sources via its 1/8" stereo mini jack input.
The amplifier comes with a built-in rechargeable battery that provides up to 10-hours of playback when in use with an analog audio source and up to 5-hours of playback with a digital source. Its gain switch provides compatibility with a range of headphones ranging from 8 to 600 ohms. The unit's analog and digital circuits are isolated and housed in an aluminum-shielded case to reduce electrical noise.
In the Box
Sony PHA-1 Portable Headphone Amplifier and USB DAC
30-Pin to USB Cable
Walkman Audio Cable
Stereo Mini Cable
Limited 1-Year Warranty
Table of Contents
1x 1/8" (3.5 mm) Stereo Mini Jack 1x Micro-USB Type B 1x iOS Device Connector
1x 1/8" (3.5 mm) 3-Pole Stereo Mini Jack
Audio In: 10 Hz to 100 kHz (Distortion 0.01% or less @ 1 kHz)
Lithium-Ion Rechargeable Battery: DC 3.7 V USB Power: 5 V
Windows 7: Starter (SP1 or later) Home Basic (SP1 or later) Home Premium (SP1 or later) Professional (SP1 or later) Ultimate (SP1 or later)
Windows Vista Home Basic (SP2 or later) Home Premium (SP2 or later) Business (SP2 or later) Ultimate (SP2 or later)
Windows XP Home Edition (SP3 or later) Professional (SP3 or later) Media Center Edition 2004 (SP3 or later) Media Center Edition 2005(SP3 or later)
Mac OS X (10.5.8 or later) CPU: Pentium II 266 MHz or better USB port (USB 2.0 Full Speed)
Note: Unit is not guaranteed to work with the below: With all or home built computers With operating systems that are personally upgraded With multiple operating systems simultaneously With power-saving functions such as system suspend, sleep, or hibernation on any computer.
Dimensions (W x H x D)
2.6 x 1.0 x 5.1" (6.7 × 2.6 × 13.0 cm) (approximate)