For the customers in the USA
Owner’s Record
The serial number is located at the bottom of the unit.
Record these numbers in the spaces provided below. Refer to 
them whenever you call upon your Sony dealer regarding this 
product.
Model No. PHA-2
Serial No.
 
   
Information
If you have any questions about this product, you may call:
Sony Customer Information Service Center 1-800-222-7669 or 
http://www.sony.com/
Declaration of Conformity
Trade Name: SONY
Model No.:PHA-2
Responsible 
Party: Sony...
                                            

                                                    Portable Headphone Amplifier
PHA-3
The  following explains how to use the headphone  amplifier. Select a topic from the navigation pane  on the left.
Getting Started
Making connections
Listening  to music
Information
Troubleshooting
Headphone amplifier
Connected device
How  to Use
Help Guide
How  to Use
Troubleshooting
List of Topics 
                                            

                                                    USB DAC AMPLIFIERUDA-1
How to Use
About the USB DAC AMPLIFIER
Features of the USB DAC AMPLIFIER
Features  of the USB DAC AMPLIFIER [1]
Supported environment
System requirements for computers connected to the USB DAC AMPLIFIER [2]
Supported driver and application
Driver for the USB DAC AMPLIFIER [3]
Hi -Res Audio Player [4]
Preparations and connections
Preparations
What you need  to do before starting to use the USB DAC AMPLIFIER [5]
Prep 1. Connecting speakers [6]
Prep 2. Connecting to a computer [7]...