DREAMUS PPF31 User Manual

PPF31

INSTRUCTION BOOK

User Guide

CONTENTS

Getting Started

Package Contents Desc
ription of Each Part Po
wer Management Char
ging
Connections Firm
ware Upgrade

_01

02
03

05

06
07

12

Using the Device

Basi c Operations
Home Screen N

otification Bar

Purchasing Music from Store
AK CONNECT
Listening to Music
Manage Playlist
USB DAC Installation
How to Use USB Audio
Automatic CD Ripping
Using Bluetooth Setti
ngs
Connecting to Wi-Fi
Equalizer Setup

Miscellaneous

Safety cautions Troubl
eshooting Copyright C
ertifications Registere
d Trademarks Disclai
mers Specifications

_02

_03

13

17

19

22
23

29

32
35

36

37
39

41

46
47

50
52

53

54
54

54

55

User Guide

Package
Contents

Contents m ay be chang ed without prio r notice to improve the
perform ance or quality of the product.

PPF31

Protective Film

Type-C USB Cable

Protective Film: Pro tects the product’s scr een.

Type-C USB Cable: Connects the product to the PC or

charges the product.
Quick Start Guide: It desc ribe s t he bas ic me thod of usi ng
the product.
Warranty Card: The war ranty card is requ ired for cust omer
service s. Keep the w arr anty car d for te chnical support .
User Guide: The U ser Guide can be downloa ded fr om the
Aste ll&Ker n website.

[http://www.a stellnkern.com/ > Supp ort > Download]. Micr

o SD Card Slot Cover: Prot ects the mic ro SD card s lot wh
en not in use . It is inst alled on the product by default.

The product does not include any micro USB cable.

Quick Start Guide

& Warranty Card

Micro SD Card Slot Cover

Getting Started 2

User Guide

Description
of Each
Part

The appearance of the product as well as the printed and
engraved information may vary depending on the model.

3.5mm Unbalanced Port

microSD card slot

Balanced Port for
External Devices

2.5mm Balanced Port

Next/FF

Replay/Pause

Previous/
Rewind

Type-C USB Port

Power/

Volume

LCD
Touchscreen

3.5mm Unbalanced Port: Connects to the earphones and the

headphones with 3.5mm unbalanced ports.

2.5mm Balanced Port: Connects to earphones and headphones

with 2.5mm balance ports for audio output.

Balanced Port for External Devices: Provides balanced output

when connected with an external device.

Micro SD Card Slot: Reads the files on the inserted micro SD card.

Type-C USB Port: Connect to a computer or recharge the device.

Power/Volume: Turn the wheel to adjust the volume of the sound.

Click: Turns the screen on and off.

LCD Touchscreen: Display the screen, and touch it to start.

Clic k and Hold - Turns the device on and off.

Home Button

Getting Started 3

User Guide

Previous/Rewind:

Short press - Plays the previous song or restarts the song.

Long press - Rewinds.

Play/Pause: Short press - Plays/pauses.

Long press - Returns to the playback screen.

Next/FF: Short press - Plays the next music.

Long press - Fast-forwards.

Home Button: Returns to the home screen.

Getting Started 4

User Guide

Power
Manage-
ment

Turning on/off Power

1. Long-press the [Power/Volume] to turn on the device.

2. While the device is on, long-press the [Power/Volume] to

shut down the device. A confirmation message will appear.

3. Press [Confirm] to turn off the device.

This device has an automatic shutdown feature to save battery po
wer. The device will turn off if there is no user input during the pe
riod defined in [Menu - Power - Automatic Shutdown] (See Page 4

5.)

Turn the Screen On/Off

1. While the screen is on, press the [Power/Volume] to turn

off the screen.

2. Press [Power/Volume] again to turn it on.

This device has an automatic timeout feature to save battery power.
The screen will turn off if there is no user input during the period
defined in [Menu - Power - Screen Timeout]. (See Page 45.)

Reset Function

1. In cases of unexpected device failure or freeze, press

[Power] for 12 seconds to force a shutdown.

The device can be restarted after a shutdown.

Resetting the device will not affect the stored data or time setting.
Do not use the reset function while the product is in use. Doing so
may corrupt the data on the device.

Getting Started 5

User Guide

Charging

Charging Via PC

1. Connecting to PC via Type-C USB cable will also charge

the product.

Charging Time: Maximum 8 hours (Completely run-down and pow

er-off) Depending on the PC specifications, the charging process

may require turning on the PC.
When charging via PC connection, the charging time may vary dep
ending on whether the device is turned on or off.

Some PCs in power-saving mode may not charge the device.
The built-in battery will gradually lose capacity over time with rep
eated charging/running-down.
Do not use cables other than Type-C USB cable and micro USB ca
ble. Doing so may cause a malfunction.

Charging Via Adapter

1. Commercially available 9V 1.67A adapters may be used f

or charging.

Fast charging: Maximum 2 hours (Completely run-down, Power-off,
9V 1.67A adapter) / Normal charging: Maximum 2 hours (Complet
ely run-down, Power-off, 5V 2A adapter)
A fast c harger of 9V 1.67A may be used. Using a 12V adapter will not
charge the product and may cause malfunctions.

Getting Started 6

User Guide

Connec-
tions

3.5mm Unbalance Port

1. Connect earphones or headphones to the 3.5mm

unbalanced port.

OR

Connect to the 2.5mm Balanced Port

1. Connect earphones and headphones to the 2.5mm balance port.

OR

Balanced Audio Device

1. Connect to an external audio device by using the Earphones

port and Balanced port in conjunction.

Earphones Balanced Port (LR)

Port (Ground)

Astell & Kern balanced cable (PEF12, PEF21) is not supported.

Getting Started 7

User Guide

Connecting to PC

1. Turn on the device and your PC.

2. Connecting the product to PC using Type-C USB cable will

follow the [Menu - USB Connection] settings.

Media Device (USB Drive): Transfer files from a PC to the

device.

DAC Input: Listen to music on a connected PC through

the device. (See Page 36.)

Mac users need to download and install the MTP program from the
Astell&Kern website. [http://www.astellnkern.com > Support > Do
wnload]
For an optimal connection, quit any unnecessary programs before
connecting the device to the computer.
Do not use cables other than the Type-C USB cable provided with the
product.
Windows XP users require Service Pack 2 and Windows Media Pla
yer 10 to be installed for the computer to recognize the USB device. Do
wnload Windows Media Player and required Service Packs from th
e Microsoft website. http://www.microsoft.com

Disconnecting from the Computer

1. Disconnect the Type-C USB cable after the transfer

between the product and PC is completed.

Disconnecting the device from the computer during an operation (
e.g., file transfer) may corrupt data on the device.

Getting Started 8

User Guide

Copy Files (Folders) to the Product

1. To copy files/folders from your computer, select the desired

files/folders and drag & drop them into the USB device.

Connect the Type-C USB cable correctly.
Turning off the product or disconnecting the Type-C USB cable while
copying or moving files/folders may cause serious damage to the
memory.
File transfer speeds may be affected by the computer and/or the OS
environment.

Getting Started 9

User Guide

Delete Files (or Folders) from the Product

1. Right-click the desired file/folder, and then select [Delete].

2. Select [Yes] in the [Confirm File/Folder Deletion] window

to delete the selected files/folders.

Insert/Remove a Micro SD Card

1. Refer to the diagram and gently

insert a micro SD card into the

micro SD card slot.

2. To safely remove a micro SD

card, select [Safely remove SD

card] from the Notification Bar

or select [Dismount SD card]

from [Menu - System Informa

tion].

3. Gently press the micro SD card

to release it from the slot.

Getting Started 10

User Guide

Recommended micro SD Cards

Micro SD: SanDisk, Transcend

Maximum Capacity: 256GB

Notes on In serting Micro SD Card

When inserting the micro SD card, do not use excessive force.
This may cause the product and the card to malfunction.

Do not repeatedly insert/remove the micro SD card.
If the card is improperly inserted, it may become immovable or
cause damage to the device.

Notes on removing a micro SD card

Be sure to safely dismount and remove the micro SD card from
the device. Not following the proper procedure may corrupt data
and cause serious damage to the system.
Do not disconnect the micro SD card during use. Doing so may
damage the micro SD card, corrupt or delete data and cause the
device to malfunction.

Notes on Using Micro SD Card

If the micro SD card is not recognized or is not functioning
properly, format the card, preferably in FAT32 system.
Using cards other than the recommended micro SD card may
cause malfunctions.
A micro SD card is not included in the product package. Purchase
a micro SD card separately.

Getting Started 11

User Guide

Firmware
Upgrade

Wi-F i Update / OTA (Ov er-the -Ai r)

1. Connect to a wireless network.

2. When a new firmware version is available, the screen will

display a Firmware Update Guide window.

3. Select [Update] and choose the items for update.

4. Follow the on-screen instructions and proceed with the

firmware upgrade.

Fo r Wi-Fi connec tions, se e Pag e 47.
The firm ware up grade may not initia lize if the batt ery lev el is too l
ow. (A min imum bat tery leve l of 50% is require d.)
Moving to another scree n dur ing a file downlo ad will ca ncel the do
wnload .
Do not disc onnect from the wirele ss ne twork whi le downlo ading a f
irmw are u pgrade. Doing so may cause data c orruption and/or d am

age to the sys tem.

If an e rror occ urs or the notice in the Not ification Bar disap pears d
urin g an upgrade, download the fir mware update aga in thr ough [M
enu - Upd ate - Syst em Update] .

Getting Started 12

User Guide

Basic

Operations

LCD Touchscreen

1. This device features an LCD touchscreen that allows you

to perform operations by touch.
Interact with the device by touching the screen to access

various features.

To prevent damage to the screen, do not use a sharp object or exce
ssive force.

Return to the Home Screen

1. Press [ ] to go to the Home Screen.

Home Screen

Using the Device 13

User Guide

Menus

1. Touch and drag to the right and left in the home screen to

display menus.

Notification Bar

1. Touch and drag up and down on the home screen to display

the notification bar.

Using the Device 14

User Guide

View Current Playlist

1. Touch and drag right and left on the home screen to display

the current playlist.

Now Playing

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

View Past Playlists

1. Touch and drag up and down on the home screen to display

previous playlists.

Play Histor y

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Using the Device 15

User Guide

Moving Up/Down on the List

1. Scroll through the list by dragging

up and down.

Now Playing

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Using the Device 16

User Guide

Home
Screen

1

2

3

4

5

6

7

8

1

Menus

Details

2

Song Duration

3

4

Current Album Goes to the album of the current

Add to Playlist Add the selected song to the

5

6

Title

Displays menus.

Displays current song information.

Indicates the song’s total duration.

Pres s to switch from elapsed time

to remaining time.

song.

playlist.

Song title information.
File name is displayed when

ID3Tag is unavailable.

9

10

11

12

13

14

15

16

17

Using the Device 17

User Guide

Artist/Album

7

Previous/

8

Rewind

9

Playback Screen Displays the playback screen.

Album Cover

10

Progress Ba r

11

12

Song Duration

Play Mode

13

14

Repeat Mode

15

Details

16

Play/Pause

Next/FF

17

Displays the artist and the album.

Short press: Plays the previous

Long press: Rewinds the current

Display album covers. P ress the

album cover to view the lyrics.

Shows the progress bar. Drag the

indicator to move to the desired

track time.

Indicates the song’s total duration.

Pres s to switch from elapsed time

to remaining time.

Pres s [ ] to set the play mode.

:Sequential playback.
:Shuffle playback.

Press [ ] to set the Repeat mode.

:Repeat the entire playlist.
:Repeat the current song.
:Cancel repeat.

Displays bit rate and sampling

frequency data.

Plays or pauses the current song.

Short press: Plays the next song.

Long press: Fast-forwards the c

urrent song.

song.

song.

Using the Device 18

User Guide

Notifi-
cation
Bar

1 2 3 4 5 6 7 8 9 10

DA C

11

12

13

00:00 15:24

Flicking

Line Out Balanced Out

CD ripping connected

Clear

16bit / 44.1kHz

143

14

Title

Artist / Album title

Using the Device 19

User Guide

1

ON/

2

3

4

default.

5

Wi-Fi

Bluetooth

AK CONNECT

EQ

PC Connection

Mode

6

USB Audio

CD Ripping

7

Line-out

8

Screen Lock

9

Gapless Playback Pre ss [

Pres s [ ] to turn Wi-Fi

OFF.

Pres s [ ] to turn Bluetooth

Set AK Connect.

Pres s [ ] to turn the EQ

ON/OFF. The most recent EQ
settings are applied by

Select the mode to use when
connected to a PC.

:Listen to music on the

DAC

device through a con

nected PC.

:Enables transfer of

DISK

media files.

Plea se turn ON/OFF US B au

dio output after connecting t

o the portable US B DAC. (Se

e page ??.)

Turn ON/OFF automatic CD

ripping. (See page ??.)

Turns ON/OFF the line-out.

Pres s [ ] to turn the screen

lock ON/OFF. The volume wh

eel is disabled when the scre

en is locked.

] to turn Gapless

Playback ON/OFF.

Using the Device 20

User Guide

10

Displays

11

Use

control

12

Adjust

volume

13

Notification

displayed

14

Deletes

Settings

Brightness

Volume

Notification

s Display

Delete Notifications

[
corresponding screen.

/

/ / / ] Long-press them to move to the

a list of settings.

the adjustment bar to

the display brightness.

the volume with the

control.

contents are

in this area.

the notifications.

Using the Device 21

User Guide

Purchasing
Music fro
m Store

Conveniently purchase music from the Store when connected

to a wireless network.

Purchasing Music

1. Connect to a wireless network.

2. Select [Store] from the menu.

3. Select the desired store.

4. Check the user guide or help menu within each store for

detailed information.

Select [Menu > User Guide] within the Groovers Store

for instructions.

For Wi-Fi connections, see Page 47. Stor
e is currently available.

Show
Menu

User

Guide

Using the Device 22

User Guide

AK C ON
NECT

The PPF 31 can a cces s a nd play b ack musi c files stored on a

P C on the s ame netw ork as well a s output sound throu gh A

stell&K ern spea ker s.

MQS Streaming Server Installation

1. Visit the Astell& Ker n website and download the server

inst aller that cor res pond s to your ope rating system. [h

ttp://w ww.as tellnkern.com > Suppor t > Download].

2. Run the downloaded in staller a nd follow the on-s creen

inst ruction s.

3. Ch eck the Us er Guide within the progr am for detailed

information on usi ng the MQS S tre amin g S erver.

Please refer to the following P C/Mac minimum system requireme
nts.

Minimum PC Requirements
OS: Windows XP, Windows 7/8/10 (32 & 64-bit)
Mac Requirements

OS X 10.7 (Lion) or later

Connecting to the AK Connect Server/Speakers

1. Turn on the ser ver and connec t
to the sa me networ k as the PP F31.

Run the MQS st reaming serve r

on your PC .

2. Turn on [AK Conne ct] from th

e device sett ings.

3. P re ss [AK Co nnec t] on the menu.

Using the Device 23

User Guide

4. A list of servers on the same

network as the PPF31 will be

displayed.

AK Connect

Library

Local

icon

iriverN ASserver

icon

AK 380

icon

Speaker

Local

icon

T1

icon

5. Select the search option on the

home menu to display the music

list.

Songs

Title Te xt

Sub text

Title Te xt

Sub text

Title Te xt

Sub text

Title Te xt

Sub text

Title Te xt

Sub text

Title Te xt

Sub text

Title Te xt

Sub text

Title Te xt

Sub text

Title Te xt

For Wi-Fi connections, see Page 47.

Using the Device 24

User Guide

Streaming and Downloading from the Music Server

1. Select the search option on the

server menu to display the m

usic list.

2. Select a song to begin streaming.

3. Press [ ] button at the upper-

right corner of the music list.

4. Select the desired music, and pr

ess [ ] on the top to download the

music.

A message on the Notification

Bar will indicate a completed

download.

Depending on network conditions, song loading may be slow or st
reaming may stutter.

Server response may be slow when the server computer is busy.
If you do streaming and download at the same time, it may slow the
device’s response time depending on the speed of the Wi-Fi network
or server.
Terminating music streaming or pressing the item being downloa
ded within the Notification Bar will stop the downloading.

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Sub text

Title Text

Using the Device 25

User Guide

AK Connect Usa ge Examples

Case 1

LIBRARY SPE AKER

AK T1 PPF31

Case 2

AK500N

LIBRARY REMOTE SPE AKER

AK T1 PPF31

Using the Device 26

User Guide

Case 3

PPF31

REMOTE & LIBRARY

AK500N

SPE AKER

Case 4

AK T1 PPF31 AK500N

LIBRARY SPE AKER

REMOTE

Using the Device 27

User Guide

Case 5

PPF31

LIBRARY

or

AK500N

LIBRARY

AK Connect APP

REMOTE

AK T1

SPE AKER

Using the Device 28

User Guide

Listening
to Music

Selecting Music

1. Select a search option at the bottom of the home screen

to display the playlist.

2. Select a song from the list to begin playback.

Select [Folder] to search music by folder.
Continuous Playing Time: Approximately 12 hours (Music: FLAC, 1
6bit, 44khz, Unbalanced, LOW Gain, Volume 50, EQ Off, LCD Off) Su
pported Formats: PCM [8~384kHz(8/16/24/32bit)]

DSD [2.9/5.6/11.2MHz]

Lis te ning t o Music

Pres s [ ] on the menu list and enter the title. The search

result wil l be displayed.

Press [ ] on the past playlist. The music will be displayed

from the most frequently played selections.

Select [MQS] and press [ ] on top. The music wil l be

displayed from the highest quality selections.

Select [Folder] as the music searc h option to copy/move

the music files.

Pres s [ ] on the music list to add all music to the

current playlist.

Pres s [ ] on top of the music list to view the options. :

: Add the file to the end of the list or next to the

current song.

: Add the selected file to the playlist.
: File selection box
: Delete the selected file.

: Exit

Turn the [volume wheel] to adjust the volume.

Using the Device 29

User Guide

Pres s [ ] during playback to pause and [ ] to resume

playback.

Pres s [ / ] during playback for the previous/next song. Lo

ng-press [ / ] during playback to rewind/fast-forward. Drag

the indicator to the desired location during playback. Pres

s the Album Cover during playback to show lyrics.

Pres s the [ ] to go to Home Screen.
Select an album cover from the home screen to begin

playback.

Using the Device 30

User Guide

1

Previous

Return

2

Playlist

Displays

3

Music

Displays

4

Play

Play

Playlist Screen

1

3

4

2

Options

All

to the previous screen.

the playlist for the current location.

all music options.

all songs from the current playlist.

Using the Device 31

User Guide

Manage
Playlist

Creating a Playlist

1. Press [Playlists] on the Home

screen to view the playlists.

2. Press [ ] on the upper-right

corner, and select [+ Add].

3. Enter a name for the playlist,

and then press [Add] to create

a new playlist.

Adding a Song to a Playlist

1. Pres s [Playlists] to display the

list of playlists.

2. Select a playlist and press

[+ Add] to display a list of songs.

3. Select a song, and pr ess [Add]

to add the song to the selected

playlist.

새로 만들기

01 재생목록(Title Text)

1곡 / 최근 추가목록 (Sub text)

02 재생목록(Title Text)

18곡

03 재생목록(Title Text)

18곡

04 재생목록(Title Text)

18곡

05 재생목록(Title Text)

02 재생목록

Album

Song Title

Art

아티스트 이름

Image

Album

Song Title

Art

아티스트 이름

Image

Album

Song Title

Art

아티스트 이름

Image

Album

Song Title

Art

아티스트 이름

Image

Album

Song Title

Art

아티스트 이름

Image

Album

Song Title

Art

아티스트 이름

Image

Art

아티스트 이름

Image

음원 추가

Using the Device 32

m

m

m

m

m

m

m

m

m

m

User Guide

Removing a Song from a Playlist

1. Press [Playlists] to display the

list of playlists.

2. Select the playlist, and then press

[ ] at the top of the screen.

3. Select music, and press [ ] on t

op to delete the music from the

playlist.

Editing the Playlist Order

1. Press [ ] next to the playlist t

o change the playlist order.

Playing a Playlist

1. Select the desired playlist for

playback.

2. Press [ ] on top of the playlist t

o move it to the end of the current

list or next to the current song.

Albu

Song Title

Art

아티스트 이름

Image

Albu

Song Title

Art

아티스트 이름

Image

Albu

Song Title

Art

아티스트 이름

Image

Albu

Song Title

Art

아티스트 이름

Image

Albu

Song Title

Art

아티스트 이름

Albu

Song Title

Art

아티스트 이름

Image

Albu

Song Title

Art

아티스트 이름

Image

Albu

Song Title

Art

아티스트 이름

Image

Albu

Song Title

Art

아티스트 이름

Image

Albu

Song Title

Art

아티스트 이름

새로 만들기

01 재생목록(Title Text)

1곡 / 최근 추가목록 (Sub text)

02 재생목록(Title Text)

18곡

03 재생목록(Title Text)

18곡

04 재생목록(Title Text)

18곡

05 재생목록(Title Text)

80곡

Using the Device 33

User Guide

Renaming a Playlist

1. Press [Playlists] to view the

playlists, and press [ ].

2. Select a playlist to be renamed.

3. Press [ T ] at the top of the screen

to display the renamed window.

4. Enter a name for the playlist, and

then press [Rename] to save the

playlist under a new name.

Deleting a Playlist

1. Press [Playlists] to view the

playlists, and press [ ].

2. Select the playlist to be deleted.

3. Press [ ] at the top of the screen t

o delete the selected playlist.

새로 만들기

01 재생목록(Title Text)

1곡 / 최근 추가목록 (Sub text)

02 재생목록(Title Text)

18곡

03 재생목록(Title Text)

18곡

04 재생목록(Title Text)

18곡

05 재생목록(Title Text)

80곡

06 재생목록(Title Text)

18곡

새로 만들기

01 재생목록(Title Text)

1곡 / 최근 추가목록 (Sub text)

02 재생목록(Title Text)

18곡

03 재생목록(Title Text)

18곡

04 재생목록(Title Text)

18곡

05 재생목록(Title Text)

80곡

06 재생목록(Title Text)

18곡

Using the Device 34

User Guide

US B DAC
Installation

The USB DAC allo ws PP F31 to be rec ogni zed as a soun d card

on a PC . Music from the PC is played through the device

ear phon es port for an en hanc ed list enin g exper ience.

USB DAC Specifications

Supp orted OS

Windows XP(32bit) / Windows 7(32bit/64bit) /

Windows 8(32bit/64bit) / Windows 10(32/64bit)

MAC OS 10.7

US B DAC Suppor t Spec ifications

Supp orted Format s: PCM [8~384kHz(8/16/24/32bit)]

DS D [2.8/5.6/11.2MHz]

Cont rol the vo lume with the P PF31 ’s volume wheel.

Playback is unavailable when settings exceed the support formats.
Volume control is unavailable when the LCD screen is turned off d
uring USB DAC connection.

The Previous, Play, and Next buttons are unavailable during USB

DAC connection.
Playback may stutter when computer performance is slow or the
USB connection is experiencing heavy usage.
There may be issues with audio-to-video synchronization during vi
deo playback depending on the sound quality and operating enviro
nment.
Volume cannot be adjusted via the Windows volume control. The v
olume wheel on the device or volume control on the appropriate
program must be used to adjust the volume.

Using the Device 35

User Guide

How to
Use USB
Audio

Enjoy USB audio by connecting a portable amp and DAC

available on the market.

How to Link Portable USB DAC

1. Connect the device’s micro USB jack with the portable

USB DAC with dedicated cable.

2. Press [ ] after scrolling down the notification bar.

3. Once [ ] is activated, you can enjoy the music through t

he portable USB DAC’s audio output jack.

The USB Type-C cable provided with the product is to be used to c
onnect to the PC or to charge the product.
For instructions on the dedicated cable, please refer to the manual
of the portable USB DAC manufacturer.

How to Change USB Audio DSD Output Type

You can change the output type of DSD data output from USB

audio.

1. Select a DSD output type on [Menu - USB audio].

PCM : The device’s DSD is converted into PCM and is

output through USB audio.

DoP : The device’s DSD is converted into DoP and is

output through USB audio.

The portable USB DAC must be able to receive digital input through
the micro USB’s OTG.
Output may not be optimum depending on the digital input specs of
the micro USB of the portable USB DAC. This is not a defect in the

device and not a reason for exchange or refund.

In the case of using DoP as a DSD output type, no sound may be o
utput except noise depending on the specs of the portable USB DAC.

Using the Device 36

User Guide

CD
Ripping

Connect the AK Ripper (sold separately) to rip CDs.

Turning the AK Ripper ON/OFF

1. Connect the micro USB port and the AK ripper of PPF31,

and press [ ] to use the AK ripper.

2. While the AK Ripper is turned on, p ull down the notification

bar and press the CD ripping icon to stop the AK Ripper

operation.

Automatic CD Ripping

1. Connect the AK Ripper and insert a CD.

2. The metadata (ID3 tags) for the inserted CD will be retrieved

via Gracenote.

3. CD ripping will begin automatically after the metadata has

been retrieved.

4. When finished, press [OK] on the results prompt to complete

automatic CD ripping.

Manual CD Ripping

1. When the AK Ripper is connected and a CD is inserted, the

[CD Ripping] menu will be activated on the home screen.

2. Press the [CD Ripping] menu and select the desired file

format (FLAC or WAV).

3. The Gracenote database will be searched for matching CD

metadata after the file format is selected.

4. When the database search is complete, press [Start] to

begin CD ripping.

5. Rip only selected songs.

Using the Device 37

User Guide

CD Ripping Results

: Indicates that CD ripping is complete, or that although

an error occurred, CD ripping was successfully completed

via error correction.

: Indicates that the song currently being ripped can be

canceled via user input.

: Indicates that CD ripping failed due to a scratch on the

CD or other similar reasons. Also indicates that CD r

ipping was canceled due to user interruption.

To search the Gracenote database, the device must be connected to
Wi-Fi. The database access time may vary depending on the netwo
rk environment.
Please note that metadata for certain CDs may not be available on
the Gracenote database.
You may not access the Home screen while CD ripping is in progre
ss.
The AK Connect service will be disabled during CD ripping. The se
rvice will automatically restart when CD ripping is completed.
Music playback will be disabled during CD ripping, and tracks that
have been ripped will not be available for playback until the entire
CD has been ripped.
You can set the desired file format and ripping speed from the [Me
nu - CD Ripping] menu.
Several attempts at correction will be made for data with errors w
hen the feature is enabled under [Menu - CD Ripping - Error Corr
ection]. Please note that the CD ripping speed will be affected wh

en this feature is enabled.

Using the Device 38

User Guide

Using Bl
uetooth

Connect a Bluetooth device to listen to music wirelessly.

Turning Bluetooth ON/OFF

A Bluetooth device must be paired

with the AK320 prior to use. Refer

to the Bluetooth device's instruction

manual for details.

1. Select [ ] from the home screen,

or select [ON/OFF] from [Menu -

Bluetooth].

Bluetooth Pairing

1. Select the appropriate Bluetooth device from the list of

available devices.

Terminating a Bluetooth Connection

1. Press the connected Bluetooth

device and confirm the message

prompt to disconnect the device.

Using the Device 39

User Guide

Removing a Bluetooth Pairing

1. Press [ ] to the right of the pa

ired device to go to settings.

2. Select [Remove Pairing] to

complete the process.

Bluetooth Support Specifications

Profile: A2DP, aptX HD
Device performance may be affected during a Hi-Fi playback.

Do not turn off the device while connected to Bluetooth.

Power cycle the Bluetooth device in case of malfunction.
Pairing methods may differ for each individual Bluetooth device. A
lways refer to the respective instruction manual for details.
When connecting the product to a Bluetooth device, the distance b
etween the two must be within 20 cm. Audio quality will degrade
with longer distances, and the pairing may disconnect at a distance
of 2 m (6.5 ft) or more. (Distances may vary depending on device and
environment.)

Crosstalk may be heard while using Bluetooth.
For multi-point devices, make the necessary connections prior to use.
Car audio Bluetooth connections are not supported.
Malfunction, noise, and other undesirable effects may occur due to
the device's battery level and the environment.

If signal interference affects data transmission. (e.g., holding the
device while wearing a Bluetooth device, holding the device while
holding another electronic device, etc.)
If the device or Bluetooth headset's radio transmitters are
touching parts of the body.
If the transmission strength is affected by walls, corners,
partitions, etc.

If devices using the same frequencies cause interference. (e.g.,

medical devices, microwave ovens, Wi-Fi, etc.)
Areas with an excessive amount of interference or weak si gnals.
(e.g., elevators, underground, etc.)

Using the Device 40

User Guide

Settings

Set up the device according to the user's needs. The settings

menu may vary depending on the firmware version.

Setup

1. Select [ ] on the notification bar of the home screen.

2. Select the desired item for setup.

Wi-Fi

Change wireless network settings and turn Wi-Fi ON/OFF.

See page 47 of the manual for more information on setting Wi-Fi.

Bluetooth

Connect a Bluetooth device to listen to music wirelessly.

See [Using Bluetooth] on page 40 for more information.

AK CONNECT

Set whether to use AK Connect.

Using the Device 41

User Guide

Equalizer

Set the equalizer according to the user's preferences. PR

O EQ: Preset EQ recommended by professionals. U SER

EQ: Adjust the frequencies according to the user's prefe

rences.

Supported Formats for EQ: PCM [8 ~ 192kHz(8/16/24bit)], DSD [2.
9/5.6/11.2MHz]
Using the equalizer may negatively affect device performance.
See pages 48 - 50 for more information on using the equalizer.

Gapless Playback

Play the next song without any interruptions/silence.

Gapless playback is only supported between two files

with identical bit rates, sample rates, and channels.

Line-out

The volume through Line Out cannot be adjusted.

Do not use earphones with the Line Out feature enabled. Doing so
may cause permanent hearing loss.

Left-Right Balance

Adjust the left-right balance for earphones/headphones.

Playback Setting

Set the destination to add the selected music.

Using the Device 42

User Guide

Amp

The AMP output may be set LOW/HIGH.

CD Ripping

Set the automatic CD ripping function as well as the file

format and ripping speed.

USB Connection

Media Device (USB Drive): Select the mode to use when

connected to a PC.

DAC Input: Listen to music on the device through a connected PC.

USB Audio

It sets up the output type of DSD being output through the

portable USB DAC.

Screen Brightness

Adjust screen brightness settings.

Date & Time

Set the current date and time.

Device Name

Set the name of the device.

The maximum name length is 30 characters.

Using the Device 43

User Guide

Language

Select the display language.

Supported languages: English, Korean, Japanese,

Chinese (Simplified/Traditional), French, Russian,

German

Keyboard

키Select the keyboard language.

Supported languages: Korean, English, Japanese,

Chinese (Simplified/Traditional), Russian

Power

Automatic power off: If a certain amount of time passes

while there is no operation of the product and buttons, i

t will be automatically powered off.

Turning off the screen: Screen Timeout: The screen will

turn off after a defined period when there is no user input.

Set Sleep Timer: Music playback will stop, and the device

will turn off after a defined period.

Download

Select a folder for downloaded files.

The default folder is set when using AK Connect to download files.
When [Select Folder] is selected, the user is prompted to choose a

download folder each time a file is downloaded.

Using the Device 44

User Guide

Update

System Update: Update the system when a new version is

available.

Application Update: Update the default applications (

including the Store) when new versions are available.

System Information

System Information: View model number, firmware version,

and data storage information. The micro SD card can be

mounted/dismounted, and data can be deleted.

Formatting the micro SD card will delete all data on the memory c
ard. Be sure to backup any important files before formatting.
When formatting the micro SD card from a computer, be sure to s
elect the FAT32 system.

System Restore

DB Restore: Resets the internal database. The database

initialization time may vary depending on the number of

files stored on the device.

Reset: Resets all user settings back to the default setting.

Factory Reset: Delete all user data and restore the device

to its original factory settings.

Using the Device 45

User Guide

Connecting
to Wi-Fi

Connecting to a Network

1. Long press [ ] from the Notifica

tion Bar or select [Menu

- Settings - Wi-Fi] to display a

list of Access Points (AP).

2. Select the desired AP to connect

to the wireless network.

Additional information such as

key index and network key may

be required depending on AP

settings.

3. Long-press the network name

and select [Network Settings]

to edit specific network settings.

Networks requiring browser or other additional certifications are
not supported.

Channels 1 through 13 are supported (but channels 12 and 13 are no
t supported for FCC).

Using the Device 46

User Guide

Equalizer
Setup

Equalizer Setup

1. Se lect [Menu - Sett ing - Equa lizer] .

2. P res s [Pro EQ] an d se lect [ + ].

3. Adjus t the f requenc ies up and

down acc ording to the use r's

prefere nces.

4. The numb er valu es at the lower-

left c orner of the s creen can be

adjuste d for fine -tunin g.

Equalizer

Gain Q

Pro EQ

PRO EQ는 변경 하실 수

없습니다.

Equalizer

Gain

User EQ 01

0 0 0 0 0 0 0 0 0 0

1 2

1 2 3 5 7

1 . 2 .

8 5 8 0 5

K 5 K 5

0 0 0 0 0

K K

30

60

Gain

45

18

Freq. 150

210

0

Q

Using the Device 47

User Guide

5. Press [Q] tab on top to view the

PEQ setting screen.

6. Press [Save] on the bottom. Set

the equalizer name, and select

[Save].

Resetting the Equalizer

1. Select the desired EQ setting and

press [ ] at the top of the screen t

o revert the EQ to its default setti

ngs.

Equalizer

Gain

User EQ 01

Freq. 30

0.

0.3

0.4 0.04

Gain

5 05

2.

Q 1.9

2.1

0

Equalizer

Gain

User EQ 01

Freq. 30

0.

0.3

0.4 0.04

Gain

5 05

2.

Q 1.9

2.1

0

저장

Equalizer

Gain

User EQ 01

0 0 0 0 0 0 0 0 0

1

2 3 5

3 4 6 9

18

2

5 8 0

0 5 0 0

0

0 0 0 0

30

60

Gain

45

Freq.

150 180 210

0.

0.

Q

0.06

Q

0.06

Q

Using the Device 48

User Guide

Deleting Equalizer

1. Press [Pro EQ] at the upper-left

corner of the screen.

2. Press [ ] next to the desired i

tem to delete the selected eq

ualizer.

Renaming an Equalizer

1. Press [Pro EQ] at the upper-left

corner of the screen.

2. Press [ ] next to the desired it

em and enter a new name for

the selected equalizer.

3. Press [Rename] to apply the

changes.

Using the Device 49

User Guide

Safety
cautions

Device

When a plug is inserted into the earphones, balanced, or

USB port, do not apply any force or impact to the plug.

Do not insert any metal objects (coins, hairpins, etc.) or

flammable debris into the device.

Do not place heavy objects on the device.
In case the device gets wet (rain, water, chemicals, medicine,

cosmetics, sweat, moisture, etc.), do not power on the de

vice and allow it to dry thoroughly. Contact the nearest iri

ver Customer Support Center. (Malfunctions due to expo

sure to liquids wil l be repaired for a fee regardless of the

warranty period and such damage may not be repairable.) Avo

id exposing the device to direct sunlight or extreme temp
eratures (-10℃ ~ 50℃) such as the inside of a car during t

he summer.

Do not store or use in hot and humid places such as saunas.

Avoid places with excess moisture, dust, or smoke.

Do not use for extended period on blankets, electric

blankets, or carpet.

Do not place near a fire or in a microwave.
Never attempt to disassemble, repair, or alter the product.

Do not store for extended periods in a confined space with

the power on.

Do not place the device near magnetic objects (magnets,

televisions, monitors, speakers, etc.).

Never use chemicals or cleaning products on the device

since they can damage the paint and surface coating.

Avoid dropping or subjecting the device to a strong impact

(excessive vibration, etc.).

Do not press multiple buttons simultaneously.
Do not disconnect the Type-C USB cable during data transfer.

Miscellaneous 50

User Guide

When connecting the Micro-USB cable, use a USB port on
the back of the PC. Connecting to a defective or damaged
USB port may damage the device.
Displaying one image for an extended period may cause
screen burn-in (afterimage).
Using poor quality protective films or adhesive stickers on
the screen may cause damage.
Do not insert any foreign objects into the earphones port.
When playing for extended periods, consider that the device
can become hot.

Other

Do not use earphones/headphones or use the product while
operating any type of vehicle. It is not only dangerous but
may be a violation of the law in certain regions.
Do not use the product during physical activities (driving,

walking, hiking, etc.).

Always use in a safe environment to avoid the risk of accidents.

Always be aware of your surroundings when using the d

evice while moving.

Avoid using the device during thunderstorms to reduce

the possibility of electric shock.

If there is a ringing in the ears during or immediately after

use, reduce the volume or discontinue using the product

and obtain medical advice.

Do not listen to music at excessive volumes for extended periods.
Do not use the earphones/headphones at excessive volumes.
Be careful not to get the earphones/headphones caught in

other objects.
Do not sleep with earphones in your ears or leave them in
for extended periods.

Miscellaneous 51

User Guide

Trouble-
shooting

Check for solutions to common problems.

1. The device won't turn on.

The battery may need to be recharged. Charge the device

for at least one hour and try again.

Reset the device and try again. (See Page 5.)

2. The device wi ll not charge when connected to a computer

via USB cable.

Connect to the PC using the Type-C USB cable. C

onnecting to the PC via a micro USB cable will not

charge the product.

Connect the adapter using the Type-C USB cable.

3. The computer won't recognize the device or an error occurs

when connected.

Use a USB port on the back of the computer.
Check that the Type-C U SB cable is properly connected.

For Windows XP, verify that Service Pac k 2 (or higher)

and Windows Media Player 10 (or higher) are installed.

Check if the device connects properly on a different computer.

4. The screen turns off repeatedly.

The screen turns off automatically after a defined period

to reduce battery consumption. Set the time at [Menu-

Power Saving - Screen Timeout].

5. The screen does not display images properl

y. Check the screen for debris.

6. There is no sound, or there is static/interferenc

e. Check that the volume setting is above [0].

Check that the earphones are plugged in properly, and

make sure debr is isn't obstructing the port connection.

Verify that the music file is not corrupted.

Verify that the audio settings have been properly set.

(Balanced out, line out, etc.)

Miscellaneous 52

User Guide

7. A file does not play, or the product is unstable when a c
ertain file is used.

The following may occur due to the condition of the file: P

layback is unstable or difficult.
The product may not work normally.

The file may sound different from a computer. The
re may be a difference in the performance of play

back or other functions.

There may be differences in the playable specs.

A file conversion or use of a different file is recommended.

Copyright

iriver Limited retains the rights to patents, trademarks, copyri
ghts, and other intellectual property rights related to this man
ual. No contents of this user manual may be duplicated or re

produced in any format or by any means without the prior ap

proval of iriver.
Using or reproducing, in whole or part, the contents of this doc
ument is subject to penalties. Software, audio, video, and any
other copyrighted contents are protected in accordance with r
elevant copyright laws.
The user accepts all legal responsibility for the unauthorized re
production or distribution of the copyrighted contents from this

product.

Companies, organizations, products, people, and events used i
n the examples are not based on actual data. iriver has no inten
tion to be associated with any company, institution, product, per
son, or incident through this instruction manual, and no such in
ference should be made. It is the responsibility of the user to co
mply with applicable copyright laws.
©1999~2017 iriver Limited. All rights reserved.

The PPF31 was designed and audio-tuned under the
advisement of MSD.

Miscellaneous 53

User Guide

Certifica-
tions

Registered
Trademarks

Disclai-
mers

KC / FCC / CE / TELEC

Class B Device (Communication equipment for residential use):

This is a Class B Device and is registered for EMC requirements

for residential use. This device can be used in residential a

reas and all other areas.

FCCID: QDMPPF31
This device complies with Part 15 of the FCC Rules, Operation is su
bject to the following two conditions: (1) this device may not cause h
armful interference, and (2) this device must accept any interfere
nce received, including interference that may cause undesired ope
ration.

Windows 2000, Windows XP, Windows 7, Windows 8, Windows

10, and Windows Media Player are registered trademarks of

Microsoft corp.

The manufacturer, importer, and distributor shall not be liable

for damages including accidental and personal injury due to

the improper use or operation of this product. The information

in this user manual was written based on current product s

pecifications. The manufacturer, iriver Limited, is adding ne

w complementary features and will continue to apply new te

chnologies in the future. All specifications may be changed

without prior notice. There is no warranty against data loss

due to the use of this product.

The device must be used minimum 5mm away from the human (body) in
normal use conditions.

Miscellaneous 54

User Guide

RISK OF EXPLOSION IF BATTERY IS RE

CAUTION

PLACED BY AN INCORRECT TYPE. DIS

POSE OF USED BATTERIES ACCORDIN

G TO THE INSTRUCTIONS.

FCC Caution

Any changes or modifications not expressly approved by the pa
rty responsible for compliance could void the user's authority to
operate this equipment.

Miscellaneous 55

User Guide

Model

DAC

LCD

NAND

XMOS

Battery

Key

Audio

Data

Charging

Material

Operating

Frequency

Maximum Output

Specifi

- catio
ns

PPF31

AK4497 x 2 (Dual DAC)

5.0inch HD 720 x 1280 touch screen

Interface

Format

Interface

Temperature

Band

0.5TB (256GB x2)

New version (xCore-200)

3,700mAh (3.8V Li-Polymer Battery) / TBD

Click wheel (Power on/off, Volume up/down)
Home touch key (Front)

Play/Pause, Next, Back Key (Left)

WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC,
AIFF, DFF, DSF

USB 3.0 C type, microSD slot x1

USB 3.0 C type (quick charger)

Stainless Steel

-10℃ ~ + 50℃

2.4GHz

Level

2.2Vrms

Miscellaneous 56