Sony Pha3 Owners Manual

							Portable Headphone Amplifier
PHA-3
About  the supplied manuals
The  following three manuals come  with the headphone  amplifier.
Help Guide (this data)
Operation manual on the Web, which can be accessed  by a PC or smartphone, provides the detailed  information  on how
to use the headphone  amplifier and troubleshooting, etc.
Start Guide (enclosed paper)
Provides basic information  on how to connect  or use the headphone  amplifier.
Reference Guide (enclosed paper)
Provides precautions and specifications.
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Help Guide
How  to Use
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							Portable Headphone Amplifier
PHA-3
How  to use  the silicone  belts
You can fasten  a connected device to the headphone  amplifier using the silicone belts (supplied). 1.  Mount the connected device on the headphone  amplifier.
2 .  Bind  the headphone  amplifier and the connected device using the silicone belt with its wider part  placed  under the
bottom of the headphone  amplifier.
4 silicone belts are  supplied.
If the connected device  does  not fit on  the rubber rails
If the audio  device does not mount on the rubber rails of the headphone  amplifier, place the protection sheet  (supplied)
between the headphone  amplifier and the audio  device to avoid scratching.
Note
Help Guide
How  to Use
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							Be  careful  not to pinch your  finger  when binding  the headphone  amplifier and the connected device with the silicone
belt. It may cause injury.
Sony is  not liable for damage to an audio  device caused  by using the silicone belts.
The  silicone belts are  not guaranteed to fasten  all  audio  devices.
Do not over -stretch  the silicone belt. It may cause a malfunction.
Stop using the silicone belt if it is  cracked.
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							Portable Headphone Amplifier
PHA-3
What  you  can  do with the headphone  amplifier
Balanced output support for clean signal ground *
for balanced output, a balanced-connection headphone  cable and balanced headphones  are  needed.
Selected parts  for high quality sound  (ES9018/TPA6120)
USB Audio PCM  384 kHz/32 bit, DSD compatible
WALKMAN, Xperia, iPhone/iPad/iPod Digital connection
All content you hear  is  enhanced.
The  DSEE  HX upscales  the existing sound  file to near  High-Resolution  sound  quality, making  you feel as though you
are  really there at the recording studio or concert.
High-quality analog  circuit with dedicated master clock
High-quality line-out operation amplifier (LME49860)
Low-resistance high-quality rotary volume  for clear and pure  sound
* Works as a  normal headphone  amplifier.
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Help Guide
How  to Use
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							Portable Headphone Amplifier
PHA-3
About  High-Resolution Audio format files
High-Resolution  Audio, which is  typically 96 kHz/24 bit or higher, is  made  by digitally sampling  an original  analog  audio
source. The  number of times at which sampling  is  performed (in one-second  increments)  is  called the sampling
frequency, which is  expressed in hertz  or “Hz.” Digitizing refers to the audio  process  where  the sampled signal is
converted (or  quantized) into binary  digits, consisting  of 1’s and 0’s, and expressed as “bits”. The  higher the number of
bits, the closer the sample  is  to the original  source. CDs  are  standardized  at 44.1  kHz/16 bit, but there is  no single
standard for High-Resolution  Audio.
An  alternative way of digitizing an analog  source  is  a method called DSD (Direct  Stream  Digital) which captures sound
information  as a sequence of single bit values with an extremely high sampling  rate  of either  2.8 MHz or 5.6 MHz. This is
approximately  64 or 128 times the sampling  rate  of CD  audio  and is  simply known as DSD 2.8 MHz or DSD 5.6 MHz.
For some  engineers, this is  the closest a digital file sample  can get to an original  analog  source.
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Help Guide
How  to Use
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							Portable Headphone Amplifier
PHA-3
About  the balanced connection
Unbalanced connections have commonly been  used for portable audio  devices. This connection method works as L+/R+
signals go through an amplifier and L-/R- signals go through the ground. Devices with unbalanced output are  normally
less expensive  and easy to handle  compared  with the balanced output devices, but unbalanced connections cannot
prevent noise occurrence  since noise can be picked up if there is  a difference in voltage  potential on the ground of the
chassis of your  device.
One of the biggest  advantages of balanced connection is  that it can stabilize the voltage  potential by transmitting the
signals as the opposite phase,  L+/L- and R+/R -, to an amplifier. Not only does this prevent the signal distortion caused
on the ground, but also eliminates  noise and hum  with opposite polarities  relative  to each other. As a result  of this,
balanced connections brings  you clear sound  with noiseless signals and improved crosstalk.
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Help Guide
How  to Use
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							Portable Headphone Amplifier
PHA-3
Parts  and  controls
Front  and  left side
Rear side
1 .  GAIN  select switch
2 .  DSEE  HX select switch
3 .  Hi -Fs (High Sampling Frequency) indicator
4 .  DSD indicator
5 .  POWER/CHG (power/charge)  indicator
6 . 
(headphones) NORMAL jack
7 . 
(headphones) BALANCED L/R jack
Help Guide
How  to Use
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							8.  Power/volume knob
9.  INPUT select switch
10 . OUTPUT select switch
11 . Xperia/WALKMAN/PC (USB AUDIO) connecting port
12 . iPhone/iPad/iPod connecting port
13 . OPT IN port
14 . AUDIO IN/LINE  OUT jack
15 . DC  IN 5V  port
Related Topic
About the  indicators
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							Portable Headphone Amplifier
PHA-3
About  the indicators
POWER/CHG (power/charge) indicator
When the headphone  amplifier is  being  charged, the indicator flashes/lights up in red.
When the headphone  amplifier is  turned on, the indicator flashes/lights up in green.
While the headphone  amplifier is  being  charged
Turns off
The  headphone  amplifier is  fully charged.
Lights up (red)
The  headphone  amplifier is  being  charged.
Flashes  (red)
The  headphone  amplifier is  not being  charged properly.
When  the headphone  amplifier is  not in the battery  charge status
You can check the battery level by the number of times that the indicator flashes when the headphone  amplifier is  turned
on.
Turns off
The  headphone  amplifier is  not turned on.
Lights up (green)
The  headphone  amplifier is  turned on.
Flashes  three times (green)
The  battery is  substantially  charged.
Flashes  twice (green)
The  battery is  half charged.
Flashes  once (green)
The  battery level is  low. It is  necessary to charge the battery.
Always  flashing (green)
If you continue to use the headphone  amplifier without charging, it will turn  off in a few minutes.
Hi-Fs (High  Sampling Frequency) indicator
Help Guide
How  to Use
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							Turns off
The  headphone  amplifier is  being  input with;
the linear  PCM  digital signal of sampling  frequencies under 48 kHz
the analog  signal
Lights up
The  headphone  amplifier is  being  input with;
the linear  PCM  digital signal of sampling  frequencies not under 48 kHz
the DSD digital signal of the High-Resolution  Audio format
DSD indicator
Turns off
The  headphone  amplifier is  being  input with;
the linear  PCM  digital signal
the analog  signal
Lights up
The  headphone  amplifier is  being  input with the DSD signal of the High-Resolution  Audio format.
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