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Listening to music with an amplifier or active
Listening to Music
speaker
Listening to music with headphones
Front of the unit
Left side of
the unit
Amplifier, active
speaker, etc.
Front of the unit
Prepare the connecting cord or cable
according to the equipment to be connected.
You can listen to music from an audio device connected to the
unit with the amplifier or active speaker connected to the AUDIO
IN/LINE OUT jack of the unit.
You can listen to music from an audio device connected to the
1
unit with the headphones connected to the PHONES jack of the
Connect an amplifier or active speaker to the AUDIO
unit.
IN/LINE OUT jack of the unit.
Notes
2
Connect an audio device to the unit, then turn on the
ˎ Connect the stereo mini plug to the unit.
ˎ
ˎ This unit does not support monaural headphones, headphones with a
ˎ
connected audio device.
remote control, or headsets with a microphone.
For details on connecting the audio device, see "Connecting to
1
Connect the headphones to the PHONES jack of the
an Audio Device."
unit.
3
Set the OUTPUT SELECT switch to LINE OUT.
2
Connect an audio device to the unit, then turn on the
4
Rotate the power/volume knob clockwise to turn on
connected audio device.
the unit.
For details on connecting the audio device, see "Connecting to
The POWER indicator lights up green. When the power is
an Audio Device."
turned on, you can check the battery level by the number of
3
Set the OUTPUT SELECT switch to PHONES.
times the POWER indicator flashes.
5
4
Start playback on the connected audio device.
Rotate the power/volume knob clockwise to turn on
When playing High-Resolution Audio format data on your
the unit.
computer with the unit, use "Hi-Res Audio Player."
The POWER indicator lights up green. Rotate the power/
For details on installing "Hi-Res Audio Player," see "To play
volume knob clockwise further to turn up the volume. When
High-Resolution Audio format data" of
the power is turned on, you can check the battery level by the
6
number of times the POWER indicator flashes.
Adjust the volume.
5
Adjust the volume on the connected audio device.
Start playback on the connected audio device.
For details on adjusting the volume, refer to the operating
When playing High-Resolution Audio format data on your
instructions of the connected audio device.
computer with the unit, use "Hi-Res Audio Player."
Note
For details on installing "Hi-Res Audio Player," see "To play
ˎ The sound from the AUDIO IN/LINE OUT jack of the unit cannot be
ˎ
High-Resolution Audio format data" of
Computer
.
adjusted by the power/volume knob or the GAIN select switch of the
6
Adjust the volume.
unit.
Adjust the volume by the power/volume knob. Depending on
List of the settings/outputs of each port/jack which is
the headphones, the volume may remain low, even if you turn
connected to the audio device
the volume up to the max.
In this case, turn off the unit, set the GAIN select switch to
HIGH, then turn on the unit. In normal use, the setting should
Port/jack which is
be NORMAL.
connected to the
audio device
"WALKMAN"
Left side of the unit
connecting port
iPhone/iPad/iPod
connecting port
Note
ˎ If you turn the volume up too high, it may damage your hearing. Be
ˎ
(USB) port (for
careful not to turn the volume up too high.
connecting to a
Tip
computer)
ˎ When connecting a device such as a smartphone or portable audio
ˎ
player, adjust the volume on the connected device beforehand.
*
1
When listening to music with headphones connected to the PHONES jack,
Depending on the device, audio output settings may be required.
set the OUTPUT SELECT switch to PHONES.
*
2
When listening to music with an amplifier or active speaker connected to
the AUDIO IN/LINE OUT jack, set the OUTPUT SELECT switch to LINE OUT.
Port/jack
which is
connected to
the audio
device
AUDIO IN/LINE
OUT jack
Fastening the Audio Device to the Unit
You can fasten a connected device to the unit using the silicone
Front of the unit
belts (supplied).
How to use the silicone belts (supplied)
Mount the connected device on the unit. Insert the lugs of the
silicone belts into the slots on one side of the unit. Pull the belts
over and insert the lugs in the slots on the other side, as shown
Left side of
below. (4 silicone belts are supplied.)
the unit
Tip
ˎ If the audio device does not mount on the rubber rails of the unit, insert the
ˎ
protection sheet (supplied) between this unit and the audio device, to avoid
scratching.
Notes
ˎ Be careful not to pinch your finger when inserting the lugs of the silicon belt
ˎ
into the slots of the unit. It may cause injury.
ˎ Sony is not liable for damage to an audio device caused by using the
ˎ
silicone belts.
ˎ The silicone belts are not guaranteed to fasten all audio devices.
ˎ
ˎ Do not over-stretch the silicone belt. It may cause a malfunction.
ˎ
.
Computer
Setting position of
Output jack of the
the input select
audio signal
switch
Second position from
PHONES jack*
1
or
the left
AUDIO IN/LINE OUT
jack*
2
Second position from
PHONES jack*
1
or
the right
AUDIO IN/LINE OUT
jack*
2
Right edge position
PHONES jack*
or
1
AUDIO IN/LINE OUT
jack*
2
Setting
Setting
Output jack
position of
position of
of the audio
the input
the OUTPUT
signal
select switch
SELECT
switch
AUDIO IN (the
PHONES
PHONES jack
left edge
only
position)
‚ If the unit is not used for a long time, the CHG (charge)
ˎ
Troubleshooting
indicator may take a while to light up red when you connect
it to your computer. In this case, do not disconnect the
If you run into any problems using this unit, use the following
micro-USB cable from the unit, and wait until the CHG
checklist and read the product support information on our
(charge) indicator lights up red.
website. Should any problem persist, consult your nearest Sony
Charging time is too long.
dealer.
‚ Check that the unit and the computer are directly connected,
ˎ
No sound
not via a USB hub.
‚ Check that the unit and the audio device are connected
ˎ
‚ A cable which is not supplied is used.
ˎ
correctly.
Noise is generated.
‚ Check that the connected device is turned on.
ˎ
‚ When connecting an audio device to the AUDIO IN/LINE OUT
ˎ
‚ Check that the unit is turned on.
ˎ
jack of the unit, adjust the volume of the connected device,
‚ If the POWER indicator does not light up, charge the battery.
ˎ
then turn up the volume of the unit.
‚ Check that the input select switch is in the correct position for
ˎ
‚ Keep the computer away from the unit.
ˎ
the connected audio device.
‚ Restart the audio playback software.
ˎ
‚ Check that the OUTPUT SELECT switch is in the correct
ˎ
‚ Turn off the connected audio device, then turn it on again.
ˎ
position for the output jack.
Sound is interrupted when connecting to the computer.
‚ Turn up the volume of the connected device.
ˎ
‚ The CPU of your computer is overloaded. Close other
ˎ
‚ Turn up the volume of the unit.
ˎ
applications.
‚ Connect the headphone plug firmly to the unit.
ˎ
‚ Other USB devices are connected to your computer and
ˎ
‚ Check that the unit, amplifier and active speaker are
ˎ
being used simultaneously. Quit operating other USB devices.
connected correctly.
The remote control of the headset does not work.
‚ Check that the connected headphones are stereo, not
ˎ
‚ Remote control operation is not supported by this unit.
ˎ
monaural.
The microphone of the headset does not work.
The unit does not support monaural headphones. Do not
‚ Headset microphones are not supported by this unit.
ˎ
connect monaural headphones. It may cause a malfunction.
A connected radio or TV cannot receive a signal/ Noise is
When connected to a computer, there is no sound or the
generated.
sound is not played back properly.
‚ Keep the connected device away from the unit.
ˎ
‚ The computer does not recognise the unit as a USB device.
ˎ
Restart your computer.
Install the driver software for Windows "Sony Portable
Precautions
Headphone Amplifier USB Audio 2.0 Driver" on your Windows
computer. For details on installing, see
.
Computer
‚ Turn up the volume of your computer or software.
ˎ
On Safety
‚ If the unit was connected to the computer while using audio
ˎ
ˎ Do not put weight or pressure on this unit as it may cause the unit to
ˎ
playback software, restart the audio playback software.
deform during long storage.
‚ When playing High-Resolution Audio format data on your
ˎ
ˎ Do not drop the unit or subject it to external shock, as it may cause a
ˎ
malfunction.
computer with the unit, use the audio playback software
ˎ Clean the unit with a soft dry cloth.
ˎ
compatible with the High-Resolution Audio format data, such
ˎ If there is noise while listening to the radio, etc., move the unit farther away
ˎ
as "Hi-Res Audio Player."
from the connected device.
When "Hi-Res Audio Player" is not installed, install it on your
On placement
computer. For details on installing, see "To play High-
Resolution Audio format data" of
Computer
.
ˎ Do not place the unit in a location where it is:
ˎ
ˋ Subject to extreme high temperature (such as in a car with its windows
ˎ
‚ If the computer enters standby, sleep or hibernation mode,
ˎ
closed).
while the music is played back by using the audio playback
ˋ Subject to direct sunlight or near a heat source.
ˎ
software, restart the audio playback software.
ˋ Subject to mechanical vibration or shock.
ˎ
‚ Check that the sound device settings of your computer are
ˎ
ˋ Subject to a magnetic field.
ˎ
correct.
(such as near a magnet, speaker or TV).
‚ For Windows 8
ˎ
ˋ Subject to excessive dust.
ˎ
Press and hold the [Windows] and [X] keys to display the
menu, select [Control Panel], [Hardware and Sound],
[Sound], [Playback] tab, select [Sony Portable Headphone
Amplifier] for the playback device, then click [Set default].
‚ For Windows 7/Windows Vista
ˎ
Click the [Start] menu, select [Control Panel], [Hardware and
Sound], [Sound], [Playback] tab, select [Sony Portable
Headphone Amplifier] for the playback device, then click
[Set default].
‚ For Macintosh
ˎ
Click the [Apple] menu, select [System Preferences],
[Sound], [Output] tab, then select [Portable Headphone
Amplifier] for [Select a device for sound output].
‚ The volume control of your computer or the audio playback
ˎ
software is set to suppress the sound. Cancel the setting.
‚ The CD-ROM drive does not support the digital reproduction
ˎ
function. Use a CD-ROM drive that supports the digital
reproduction function.
‚ Digitally broadcast sound may not be output from a
ˎ
computer's USB port. In this case, connect the AUDIO IN/LINE
OUT jack of the unit to the analog audio output of the
computer.
Low sound
‚ Turn up the volume of the connected device.
ˎ
‚ Turn up the volume of the unit.
ˎ
‚ When using high-impedance headphones, set the GAIN
ˎ
select switch to HIGH.
‚ Use headphones that have a stereo mini plug. The unit only
ˎ
supports headphones that have a stereo mini plug. If you use
headphones/headset with a remote control or microphone,
there may be low sound or no sound.
The unit does not turn on.
‚ Charge the battery of the unit.
ˎ
‚ When battery life reduces to half, the battery is approaching
ˎ
the end of its service life. Consult your nearest Sony dealer
for replacement.
Distorted sound
‚ If the audio device is connected to the AUDIO IN/LINE OUT
ˎ
jack of the unit, turn down the volume of the connected
device.
‚ Set the equalizer setting of the connected device to off.
ˎ
‚ Charge the battery of the unit.
ˎ
The battery cannot be charged.
‚ Turn off the unit.
ˎ
‚ Check that the unit and your computer are firmly connected
ˎ
using the micro-USB cable (supplied).
‚ Check that the computer is turned on and not in standby,
ˎ
sleep or hibernation mode.
‚ Check that the unit and the computer are directly connected,
ˎ
and not via a USB hub.
‚ Try the USB connection procedure again in cases other than
ˎ
those stated above.
‚ The USB port of the connected computer may have a
ˎ
problem. Connect the unit to another USB port of the
computer if available.
‚ Charging methods that are not supported may not be
ˎ
possible.
‚ The battery is fully charged.
ˎ
If the battery is fully charged, the CHG (charge) indicator may
blink and go off, and charging may not start. This is not a
malfunction. For details, see "Charging the Unit."
Specifications
Frequency range
Included items
10 Hz – 100 kHz (AUDIO IN input)
PHA-2 (this unit) (1)
Distortion 0.01% or less (1 kHz)
Digital output USB cable for
"WALKMAN" (1)
Supported impedance
Micro-USB cable (1)
8 Ω - 600 Ω
Stereo mini cable (1)
Maximum input
Silicone belt (4)
1 Vrms (AUDIO IN)
Protection sheet (1)
Maximum output (when using
Operating Instructions (this manual)
the built-in lithium-ion
(1)
rechargeable battery)
Operating environment
Approx. 165 mW + 165 mW
Compliant OS:
(8 Ω, 10 % distortion)
Windows 8/Windows 8 Pro
Approx. 90 mW + 90 mW
Windows 7
(32 Ω, 1 % distortion)
Starter (SP1 or later)/Home Basic (SP1
Approx. 25 mW + 25 mW
or later)/Home Premium (SP1 or
(300 Ω, 10 % distortion)
later)/Professional (SP1 or later)/
Output jack
Ultimate (SP1 or later)
Windows Vista
Stereo mini jack*
1
(PHONES jack)
Home Basic (SP2 or later)/Home
Stereo mini jack*
1
(Switching the input
Premium (SP2 or later)/Business (SP2
and output of the AUDIO IN/LINE OUT
or later)/Ultimate (SP2 or later)
jack by the OUTPUT SELECT switch)
Mac OS X (10.6.8 or later)
Input jack/port
CPU: Intel Core 2 Processor 1.6 GHz or
Stereo mini jack*
1
(Switching the input
better
and output of the AUDIO IN/LINE OUT
Memory: 1 GB or better
jack by the OUTPUT SELECT switch)
USB port (USB 2.0 High Speed)
Micro-USB port (type B)
ˎ One of the above OS need to be
ˎ
"WALKMAN" connecting port
installed to the computer at the
iPhone/iPad/iPod connecting port
factory.
*
1
Only a 3-pole stereo mini plug is
ˎ The unit is not guaranteed to
ˎ
supported. Other plugs, including
operate with all computers.
2-pole mini plug or 4-pole stereo
ˎ The unit is not guaranteed to
ˎ
mini plug, are not supported.
operate with home built computers,
Operating temperature
operating systems that are
0 °C to 40 °C
personally upgraded, or multiple
Charging temperature
operating systems.
ˎ The unit is not guaranteed to
ˎ
5 °C to 35 °C
operate with functions such as
Power source
system suspend, sleep, or
DC 3.7 V built-in lithium-ion
hibernation, on any computer.
rechargeable battery
Rated current consumption
Design and specifications are subject
1000 mA
to change without notice.
Battery life*
2
Analog connection: Approx. 17 hours*
2
Digital connection: Approx. 6.5
hours*
2
Charging time
Approx. 7 hours*
3
*
when using the unit at 1 mW +
2
1 mW output (24 Ω). Time may vary,
depending on the immediate
environment or conditions of use.
*
3
Time required for empty battery to
recharge.
Dimensions
Approx. 68 mm × 29 mm × 140 mm
(w/h/d, projecting parts are not
included)
Mass
Approx. 270 g
Supported sampling
frequencies/bit
PCM: Maximum 192 kHz/24 bit
DSD: 2.8 MHz, 5.6 MHz*
4
*
4
When playing back DSD on your
Mac OS, or Windows in DoP mode,
2.8 MHz is the upper limit.
Trademark Notices
ˎ "WALKMAN" and "WALKMAN" logo are registered trademarks of Sony
ˎ
Corporation.
ˎ iPad, iPhone, iPod, iPod classic, iPod nano, and iPod touch are trademarks of
ˎ
Apple Inc., registered in the U.S. and other countries.
ˎ "Made for iPod," "Made for iPhone," and "Made for iPad" mean that an
ˎ
electronic accessory has been designed to connect specifically to iPod,
iPhone or iPad, respectively, and has been certified by the developer to
meet Apple performance standards. Apple is not responsible for the
operation of this device or its compliance with safety and regulatory
standards. Please note that the use of this accessory with iPod, iPhone or
iPad may affect wireless performance.
ˎ Macintosh and Mac OS are trademarks of Apple Inc., registered in the U.S.
ˎ
and other countries.
ˎ Microsoft, Windows and Windows Vista are registered trademarks or
ˎ
trademarks of Microsoft Corporation in the United States and/or other
countries.
ˎ All other trademarks and registered trademarks are trademarks or
ˎ
registered trademarks of their respective holders. In this manual, TM and ®
marks are not specified.
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