HiFiMAN HM-901 User manual

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HM-901 Owner's Guide
HM-901

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HM-901 Owner's Guide
Table of Contents
1 HM-901 Basics 1
Function Buttons 2
Power ON/OFF key 3
Accessories 4
Using HM-901 5
Note 5
Card Installation 5
Power ON/OFF 5
Charging 6
Replacing the battery 6
Replacing the amp module 7
Connections 8
Connecting HM-901 to PC 9
Disconnecting HM-901 from PC 9
2 Operation 10
Main menu 10
Insert SD Card 10
Artist, album and genre 11
All songs 11
Favorite 11
12
Setting 12
System version 13
Repeat 13
14
Backlight 14
Brightness 15
Language 15
S/P DIF-IN 16
Updating media database 17
Reset settings 17
3 Other information 18
HM-901 customer service 19
Recycling information 20

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HM-901 Owner's Guide
Basics Operation Other information
Dimensions: 72mm W×117mm H× 29mm D
Weight: 250g
Battery life: 9 hours
D/A Chip: ES9018×2
Frequency response: 20HZ-20KHz
Distortion: 0.008%(Line out)
S/N: 106±4db
SD Card Memory: 128G
Acceptable music formats:
GND COAX-ON/OFF EXT-DP EXT-DM DIGITAL-IN NC COAX-OUT EXT-USB TX-IN +7.5v-BAT +7.5v-BAT -7.5v-BAT -7.5v-BAT GND BAT-GND BAT-GND USB-DM USB-DP VUSB DET-B DET-A LOUT-R AGND LOUT-L
24
1
24-pin Dock
16Bit&24Bit: WAV, FLAC, ALAC (M4A)
16Bit: AIFF, AAC, APE(16bit/44.1KHz&48KHz)
Supports playing DSD(DFF) files

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HM-901 Owner's Guide
Basics Operation Other information
Phone out
Volume
Screen
Hold
Power
Back
Low/High Gain
Click wheel
OK
Classic/HD
Balance/Normal
Home
Play/Pause
Next
Previous
Base port
Function Buttons
Reset
Lock

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HM-901 Owner's Guide
Basics Operation Other information
Power ON/OFF
Hold the power key up for 2-3 sec to turn on the player when HM-901
is powered off.
Hold the power key up for 2-3 sec to turn off the player when HM-901
is powered on. A dialog box will appear for you to select the mode.
Wheel
The icon for the wheel will show on the main menu after the player is
powered on.
Rotate the wheel to fast forward or rewind in play menu.
Central button
Press the central key in play menu to select repeat.
Back
Press the button to return to the previous folder.
HOME
Press the HOME button to return to the main menu from anywhere.
Play/Pause
After pressing the Play/Pause button, the player will play music or
pause.
NEXT
Press the button to go to next song.
PREVIOUS
Press the button to return to previous song.

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HM-901 Owner's Guide
Accessories
1.USB cable, S/P DIF input/RCA Line out cable.
2.Charger, for charging HM-901.
3. Battery: Li-ion +7.4V 1600 mAh, -7.4V 520 mAh
4.Owner’s Guide/Manual.
5.Amp module.
Basics Operation Other information
Low/High Gain
The player is set in Low Gain. Press the button to choose Low or High Gain.
Balance/Normal
Phone output: Normal/Balance. Select “Normal” for normal headphones or
earphones but for balanced output, please select “Balance”.
Volume
Please turn the volume to “0” before playing music to protect your hearing.
After the player is powered on, adjust the volume as you like.
HOLD
Press the HOLD button to lock or unlock the player. When the switch is set
to hold, all the buttons (except for the volume button) are disabled.When the
player is unlocked, all the buttons are back to work.

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HM-901 Owner's Guide
Using HM-901
Note
Please read this manual thoroughly on how to best install and operate your
player for many years of enjoyment.
Insert SD Card
on the SD card. After the update, the HM-901 will be ready to play.
It is recommended that you install or remove the SD card when the player is
Power ON/OFF
Hold the power key on the right side of HM-901 up for 2 sec. After releasing
the power key, the player will power on and the HiFiMAN logo will appear.
With HM-901 on, push the power key on the right side of the player up. A
dialog box will appear for you to select the mode: power off or cancel. If
you select “power off”, the player will shut down.
Basics Operation Other information

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HM-901 Owner's Guide
Reset
Should the player LCD become “frozen”, insert a proper tool in the reset hole
to reboot the player. to reboot the player.
Charging
The average battery time of HM-901 is eight to nine hours. Please charge the
player when you see a reminder of low power. We recommend that you use
the original HiFiMAN charger.
Note: The player can only be charged fully with Power OFF.
Replacing the battery
When your battery is out of life, you should replace it with a new one which
can only be supplied by HiFiMAN or HiFiMAN authorized dealers. For more
information on replacing the battery, please visit: http://head-direct.com/
Basics Operation Other information
How to install the battery:How to remove the battery:

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HM-901 Owner's Guide
Press the
clamp down
Take out the
amp module
Amp module bay
Clamp
Please install the amp module in the opposite way of removing it.
Basics Operation Other information
Replacing amp module
your HM-901 to

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HM-901 Owner's Guide
1. Use the USB cable to connect HM-901 to the computer.
2. Wait for the system to show “USB connecting”.
Connecting
Connecting HM-901 to PC
Basics Operation Other information

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HM-901 Owner's Guide
Note:
1. It is important not to remove the USB cable while music is being
2. The speed for data transfer can vary depending on the size of the
Disconnecting HM-901 from PC
Click the USB device icon on the computer and disconnect the player. The
USB cable can then be removed.
Note:
1. The USB device icon might be concealed under other programs. If you
cannot see it, click the “show the concealed device” and you wi
USB device icon.
2. When the SD card is in operation, you do not disconnect the player.
3. Do not unplug the USB cable while music is transferring, you may corrupt
Basics Operation Other information

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HM-901 Owner's Guide
2 Operations
Main menu
When the player is starting, the
system will automatically detect
update database. After the update,
the HM-901 will go to main menu.
SD Card
On the main menu, rotate the wheel
to SD card and click the central
button to enter the SD card menu
the wheel highlights a single track,
press the central button to play the
will not be visible.
Basics Operation Other information

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HM-901 Owner's Guide
Artist, Album and Genre
according to
the artist, album and genre. Accordingly,
three menus are shown on the main menu.
All Songs
After the player is started, you can
go to “browse all songs” from the
main menu and play music.
Basics Operation Other information
Favorite
When you browse all songs, you will
view a hollow star following each
song on the right. If you press the
central button for several seconds,
the song you are browsing will be
added to “Favorite” with the star
being solid. By entering Favorite
from the main menu, you will see all
the added songs.

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HM-901 Owner's Guide
Basics Operation Other information
On the play list, press the Back
button for seconds and a window
will show up. Press Yes to delete
When HM-901 is playing music, or
you go to the play menu from the main
menu, the play menu will be visible.
Click the central button to select the
playing mode and press it for 3 sec to
add/remove one song to Favorite.
Setting

On Main Menu, select “Setting”
then go to “Repeat” to make your
selection.
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HM-901 Owner's Guide
System Version
Click to see the information on your
HM-901’s current software version.
Basics Operation Other information

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HM-901 Owner's Guide
On Main Menu, select “Setting”
selection.
Basics Operation Other information
Backlight
You have the option to set the time
for the player on as “always on,
10s, 30s, 1min and 2 mins”.

Brightness
Set the display brightness from 1 to
5.Note: The brighter your display the
more battery life will be affected.
Language
On Main Menu, select “Setting” then
go to “Language” to make your
selection.
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HM-901 Owner's Guide
Basics Operation Other information

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HM-901 Owner's Guide
Basics Operation Other information
S/P DIF
Switch between DAP and S/P DIF.
Press the go back button to exit S/P DIF.
Note:
To use the S/P DIF, a base is
needed. For more information,

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HM-901 Owner's Guide
Basics Operation Other information
Updating media
database
update the index information for all
Reset Settings
Perform Factory Data Reset.
Warning: Performing a Factory
Data Reset will clear the player's
memory and put it back to the
original factory default state.

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HM-901 Owner's Guide
3 Other information
Product Safety
Note:
Make sure not to place heavy items on HM-901 to avoid possible
damage to the player.
Be careful not to drop or hit your player.
Keep the player away from rain, water, drinks, chemicals and
cosmetics, etc. Any damage caused by the player being soaked
will not be covered in the warranty whether it is within or without the
warranty period.
Avoid putting the player in a humid, dusty or smoky environment.
Any attempt to remove, repair or modify the player without permission
is forbidden and will void the warranty.
Keep the player from direct sunlight. Proper operating environment:
21.2。
Ｆ~104。 Ｆ(-6℃~40℃).
Basics Operation Other information