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Remove the three screws that attach the
printed circuit board, and remove the lithi-
um-ion battery from the top panel.
Included accessories
Check to be sure the box includes all the supplied accessories
shown below. Please contact the store where you purchased
this unit if any of these accessories are missing or have been
damaged during transportation.
DC power supply cable (DC plug to USB A connector) × 1
USB cable for computer connection (USB micro-B connector to
USB A connector) × 1
RCA conversion (RCA to mini plug) cable × 1
Owner's manual × 1 (this document including warranty)
o Users in the USA and Canada should see pages 53-54 and
users in Europe and other countries and regions should see
page 54 in this document for information about the warranty.
Features
This portable headphone amplifier with a built-in USB DAC
supports Apple iOS products. Using asynchronous mode that
supports USB audio (192kHz/24-bit and 5.6MHz DSD/DSD128),
this unit can convert signals from digital to analog accurately
with its built-in high-precision clock to enable playback of
high-resolution audio contents.
This product has a Blackfin® 16/32-bit embedded processor
made by Analog Devices, Inc. This processor controls digital
signal processing.
Inclusion of this Blackfin® processor in the product increases its
performance and reduces its power consumption.
User registration
Please register online at the following TEAC website if you are
in the USA.
http://audio.teac.com/support/registration/
Apple products that can be used
with this unit
This unit can be connected to and used with the following
Apple products.
iPhone 6 Plus, iPhone 6, iPhone 5s, iPhone 5c, iPhone 5,
iPad Retina (4th generation), iPad Air, iPad mini,
iPad mini Retina, iPod touch (5th generation)
o Always use the USB cable that was included with the iPod,
iPhone or iPad to connect it to this unit's iPod/iPhone/iPad
connector. Operation cannot be guaranteed when using a
non-genuine cable.
Playback application software
You can use the free TEAC HR Audio Player app, which is a play-
back application that supports high-resolution files.
http://teac-global.com/
Supported operating systems
Computers running the following operating systems can be
connected by USB to this unit (as of February 2016).
Microsoft Windows
Windows 7, Windows 8.1, Windows 10
o To use a Windows computer for playback, you must install
the dedicated driver on the computer beforehand.
Download the dedicated driver from the TEAC Global Site:
http://teac-global.com/
Important notice
Always install the dedicated driver software on the Windows
computer before connecting the unit to it using a USB cable.
If you connect this unit to a Windows computer that does not
already have the driver installed on it, proper operation will not
be possible. Furthermore, be aware that it might also become
impossible to install the driver normally if they are connected
before installation.
Mac OS X
OS X Lion (10.7)
OS X Mountain Lion (10.8)
OS X Mavericks (10.9)
OS X Yosemite (10.10)
OS X El Capitan (10.11)
o This unit can be operated with the standard OS driver, so
there is no need to install a driver.
Use with operating systems other than the above is not
guaranteed.
Recharging
This unit has a built-in rechargeable lithium-ion battery.
o Charge it before using the unit the first time after purchase
and after it has not been used for a long time.
o Make sure the temperature of the surrounding environment
is between 5−35°C when charging.
Charging might not occur properly outside this temperature
range.
o A computer connected using the included USB cable can
also charge the unit.
o Always connect this unit and the computer directly. If con-
nected through a USB hub or other device, charging might
not occur properly.
o When connected to a computer using the included USB
cable, charging might not start if the computer does not
recognize this unit as a valid USB device.
o The unit can be charged more quickly than with a computer
by using the included DC power supply cable and connect-
ing a commercially-available USB AC adapter.
Use a USB AC adapter that has an output current of at least 1.0 A.
o Even after starting charging, the battery charge could still
decrease depending on the operational status of the unit.
o When the included DC power supply cable and the USB
cable for computer connection are both connected, the unit
will charge from the DC power supply cable. Power will not
be supplied from the computer in this case.
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