Tascam US-144MKII User manual

US-144@#
USB 2.0 Audio/MIDI Interface
D01087720A
OWNER'S MANUAL

2TASCAM US-144MKII
IMPORTANT SAFETY PRECAUTIONS
TO THE USER
This equipment has been tested and found
to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reason-
able protection against harmful interference
in a residential installation. This equipment
generates, uses, and can radiate radio fre-
quency energy and, if not installed and used
in accordance with the instruction manual,
may cause harmful interference to radio com-
munications.
However, there is no guarantee that interfer-
ence will not occur in a particular installation.
If this equipment does cause harmful interfer-
ence to radio or television reception, which
can be determined by turning the equipment
off and on, the user is encouraged to try to
correct the interference by one or more of the
following measures.
a) Reorient or relocate the receiving anten-
na.
b) Increase the separation between the
equipment and receiver.
c) Connect the equipment into an outlet on
a circuit different from that to which the
receiver is connected.
d) Consult the dealer or an experienced
radio/TV technician for help.
CAUTION
Changes or modifications to this equip-
ment not expressly approved by TEAC
CORPORATION for compliance could void
the user's authority to operate this equip-
ment.
For U.S.A. Declaration of Conformity
Model Number: US-144MKII
Trade Name: TASCAM
Responsible party: TEAC AMERICA, INC.
Montebello, California, U.S.A.
Telephone number: 1-323-726-0303
This device complies with Par t 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received,
including interference that cause undesired operation.
This appliance has a serial number located on the bot-
tom panel. Please record the model number and serial
number and retain them for your records.
Model number
Serial number

TASCAM US-144MKII 3
IMPORTANT SAFETY PRECAUTIONS
1 Read these instructions.
2 Keep these instructions.
3 Heed all warnings.
4 Follow all instructions.
5 Do not use this apparatus near water.
6 Clean only with dry cloth.
7 Do not block any ventilation openings.
Install in accordance with the manufac-
turer's instructions.
8 Do not install near any heat sources such
as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that pro-
duce heat.
9 Only use attachments/accessories speci-
fied by the manufacturer.
10 Use only with the cart, stand, tripod, brack-
et, or table specified by the manufacturer,
or sold with the apparatus. When a cart is
used, use caution when moving the cart/
apparatus combination to avoid injury from
tip-over.
 • Do not expose this apparatus to drips or
splashes.
 • Do not place any objects filled with liquids,
such as vases, on the apparatus.
•Do not install this apparatus in a confined
space such as a book case or similar unit.

4TASCAM US-144MKII
IMPORTANT SAFETY PRECAUTIONS
Contents
1 – Introduction ............................ 5
Overview................................................5
Features................................................. 5
What is in the package .......................... 5
Conventions used in this manual........... 6
Trademarks ............................................ 6
Precautions and notes for placement
and use ..................................................6
Beware of condensation........................ 7
Cleaning the unit ...................................7
2 – Parts of the US-144MKII ......... 8
Top panel ............................................... 8
Front panel........................................... 10
Rear panel............................................ 11
3 – Installation............................. 12
System requirements ........................... 12
Windows ........................................12
Mac OS X .......................................12
Installing the driver.............................. 12
Installing the driver for Windows ...13
Installing the driver for Mac OS X .. 15
Uninstalling the driver.................... 15
Frequently asked installation
questions and answers (FAQ) ........15
Settings on your computer .................. 16
Installing Cubase LE4........................... 16
4 – US-144 MKII Control panel
settings.................................. 17
Overview.............................................. 17
Control panel settings ......................... 17
Audio Performance.........................17
Sample Clock Source...................... 18
Digital Output Format ....................18
“ch1 and ch2” and “ch3 and ch4”. 18
LINE OUTPUTS and DIGITAL
OUTPUT.......................................... 18
USB 1.1 Mode Input Selection........18
5 – Connections........................... 19
USB connections.................................. 19
Audio connections............................... 19
Mic................................................. 19
Guitar.............................................20
Sound module/MD/CD etc. (digital
connection) ....................................20
Keyboard/drum machine/sound
module/cassette deck/MD/CD etc.
(analog connection) .......................21
Analog record player......................21
Monitor speakers ...........................21
Headphones ...................................22
MIDI connections.................................22
6 – Application Guide ................. 24
Windows XP and Windows Media
Player................................................... 24
Windows Vista and Windows Media
Player................................................... 25
Mac OS X and iTunes........................... 26
Cubase LE4 .......................................... 26
7 – MIDI Implementation Chart . 27
8 – Troubleshooting.................... 28
9 – Specifications ........................ 31
Input/output ratings ............................31
Analog audio input/outupt ............31
Digital audio input/output..............31
Control input/output ......................32
Audio performance..............................32
Computer requirements....................... 32
Windows ........................................32
Macintosh ......................................33
General ................................................33
Dimensions ..........................................34

TASCAM US-144MKII 5
1 – Introduction
Thank you for your purchase of the
TASCAM US-144MKII USB 2.0 Audio/
MIDI Interface.
Please read this owner’s manual carefully
before you begin using the US-144MKII,
and use the product correctly as directed
in order to ensure long and trouble-free
enjoyment of all its functionality.
After you have read this manual, keep it
nearby for reference when required.
You can also download the Owner's
Manual from the supplied CD-ROM or the
TASCAM web site (http://www.tascam.
com).
We can accept no responsibility for any loss
of the data you record using this product
onto other MIDI equipment in your system
or onto storage devices such as hard disk.
Overview
The US-144MKII is a USB-based audio/
MIDI interface designed for use with Digital
Audio Workstation (DAW) software. It
provides a four-input, four-output 24-bit 96
kHz audio interface and a 16-channel MIDI
interface.
Because the US-144MKII is USB-based,
it is the ideal companion to any desktop or
laptop-based digital recording setup. And
since the US-144MKII operates using only
USB power, you can use it with a laptop
computer to create a very compact and
portable digital audio workstation system.
The US-144MKII is also an ideal way to
capture analog sources such as records
or cassette tapes into your computer and
preserve them as audio CDs.
Features
24-bit/96 kHz audio interface.•
4-channel (two analog and two digital)•
signals can be input at the same time
and recorded simultaneously into your
computer via USB.
Two XLR mic inputs (balanced) and•
two 1/4” phone mic inputs (balanced/
unbalanced) are provided. One of the 1/4”
phone inputs can be switched to allow
direct input of an electric guitar or electric
bass (R channel only).
Unbalanced stereo line output (RCA•
connector) and headphone output.
S/PDIF digital input and output•
MIDI IN/OUT.•
Direct Monitor function allows zero-•
latency monitoring of the input.
Power is supplied by the USB connector.•
A note about computer operation
If you are unsure about how to perform
basic computer operations appearing in this
manual, please refer to the owner’s manual
that came with your computer.
What is in the package
The US-144MKII package contains the
following items.
Take care when opening the package not
to damage the items. Keep the package
materials for transportation in the future.
Please contact the store where you purchased
this unit if any of these items are missing or
have been damaged during transportation.

6TASCAM US-144MKII
US-144MKII main unit•
USB cable•
CD-ROM• ( containing driver and manuals )
DVD-ROM (Cubase LE4)•
Cubase LE4 Quick Start Guide•
Warranty card•
Owner’s manual (this document)•
Conventions used in this
manual
The following conventions are used in this
manual:
Front panel keys, knobs, and indicators,•
and rear panel connectors are designated
in all-capital letters.
Example: LINE IN jacks
This typeface
•is used to designate
messages displayed by the software.
Example: Control Surface Protocol
This typeface
•is used to designate
software menu functions and on-screen
controllers.
Example: ASIO Device
Additional information is introduced in•
the styles below when needed:
TIP
Useful hints when using the unit.
NOTE
Explanation of actions in special situation
and supplement.
CAUTION
Instructions that should be followed to
avoid injury, damage to the unit or other
equipment, and loss of data.
Trademarks
TASCAM is a registered trademark of•
TEAC Corporation.
Microsoft, Windows, Windows XP, and•
Windows Vista are either registered
trademarks or trademarks of Microsoft
Corporation in the United States and/or
other countries.
Apple, Macintosh, Mac OS and Mac OS•
X are trademarks of Apple Inc., registered
in the U.S. and other countries.
Pentium and Intel are trademarks of•
Intel Corporation in the U.S. and other
countries.
AMD Athlon is a trademark of Advanced•
Micro Devices, Inc.
Cubase is a registered trademark of•
Steinberg Media Technologies GmbH.
ASIO is a trademark of Steinberg Media
Technologies GmbH.
Other company names, product names and•
logos in this document are the trademarks
or registered trademarks of their respective
owners.
Precautions and notes for
placement and use
Do not place any object on the unit for•
heat dissipation.
Avoid installing this unit on top of any•
heat-generating electrical device such as a
power amplifier.
1 – Introduction

TASCAM US-144MKII 7
Beware of condensation
If the unit is moved from a cold to a warm
place, or used after a sudden temperature
change, there is a danger of condensation;
vapor in the air could condense on the
internal mechanism, making correct
operation impossible. To prevent this, or if
this occurs, let the unit sit for one or two
hours at the new room temperature before
using.
Cleaning the unit
To clean the unit, wipe gently with a soft dry
cloth. Do not wipe with chemical cleaning
cloths, benzene, paint thinner, ethyl alcohol
or other chemical agents to clean the unit as
they could damage the surface.
1 – Introduction

8TASCAM US-144MKII
Top panel
1MIDI IN indicator Lights when MIDI
data is being received at the MIDI IN
connector.
NOTE
A device that transmits the MIDI Active
Sense message will cause this indicator to
blink constantly.
2MIDI OUT indicator Lights when MIDI
data is being transmitted from the MIDI
OUT connector.
3USB indicator Lights to indicate a valid
USB connection to the host computer.
2 – Parts of the US-144MKII

TASCAM US-144MKII 9
4MON MIX balance knob Controls
the balance of the signal sources being
output from the LINE OUT jacks and the
PHONES jack. When this knob is turned to
the INPUT side, the signal being input to the
US-144MKII (from the MIC IN jacks, or
1/4” LINE IN jacks) will be output. When this
knob is turned to the COMPUTER side, the
output signal received from the computer via
USB will be output.
5MONO switch Turn this switch ON
if you want to monitor in monaural. This
switch affects only the MIC/LINE input
signal.
6INPUT L knob Adjust the level of the
audio signal being input to the MIC IN L
jacks and LINE IN L jacks.
7PHONES level knob Controls the output
level of the PHONES jack.
CAUTION
Use the PHONES knob to minimize the
volume before connecting headphones.
Failure to do so could cause a sudden burst
of loud noise, which might result in hearing
damage, for example.
8LINE OUT level knob Controls the
output level of the LINE OUT jacks.
9INPUT R knob Adjust the level of the
audio signal being input to the MIC IN R
jacks and LINE IN R jacks.
0
MIC/LINE-GUITAR select switch Set
this switch as appropriate for the input source
you have connected to the LINE/GUITAR
IN R jack. Use the GUITAR position if you
have directly connected an electric guitar
or electric bass. Use the MIC/LINE position
if you have connected an electronic musical
instrument, audio device, or mic.
qSIG/OL indicators Light when signals
are being input to the input channels (L, R).
They will light green to indicate a signal
is present, and will light red immediately
before distortion occurs.
These indicators will light green when the
maximum level is between -30 dB and -2
dB. The indicators will light red when the
maximum level is within -2 dB.
wPHANTOM switch/indicator Turns
on the +48V phantom power supplied to the
MIC IN jacks.
The indicator lights when the PHANTOM
switch is ON.
CAUTION
Use the PHONES and LINE OUT knobs to•
minimize the volume before turning the
PHANTOM switch ON or OFF. Depending
on the mic, loud noises might be
produced and damage could be caused
to equipment or to people’s hearing.
Microphones should not be connected•
to or disconnected from the US-144MKII
with phantom power switched on.
Turn this switch on only if you are using•
condenser microphones that require
phantom power.
Unbalanced dynamic microphones•
should never be connected to phantom-
powered connectors.
Please note that if you are operating•
the unit with a battery-powered
laptop computer, the battery life of
the computer will be reduced if the
PHANTOM switch is on.
2 – Parts of the US-144MKII

10 TASCAM US-144MKII
Front panel
eMIC IN (L, R) jacks (XLR balanced)
These are analog mic input jacks. The wiring
is as follows: pin 1 = ground, pin 2 = hot, pin
3 = cold.
rLINE IN L jack (TRS 1/4” phone jack)
These are balanced line input jacks.
tPHONES jack (stereo 1/4” phone) This
is a headphone output jack.
CAUTION
Use the PHONES knob to minimize the
volume before connecting headphones.
Failure to do so could cause a sudden burst
of loud noise, which might result in hearing
damage, for example.
yLINE IN R/GUITAR IN jack (TRS 1/4”
phone jacks) These are balanced line input
jacks. This also accommodates guitar input.
If the top panel MIC/LINE-GUITAR select
switch is in the GUITAR position, this
operates as an unbalanced input jack for
guitar. If the MIC/LINE-GUITAR select switch
is in the MIC/LINE position, this operates as
a balanced input jack. (Sleeve = ground, tip
= hot, ring = cold)
2 – Parts of the US-144MKII

TASCAM US-144MKII 11
Rear panel
uUSB connector Use the provided USB
cable to connect this to the host computer’s
USB 2.0 port.
NOTE
If the US-144MKII is operating•
with a USB 1.1 (USB 2.0 Full Speed)
connection, the sample rate choices
will be limited to 44.1 kHz and 48 kHz.
If the unit is operating with a USB 1.1•
(USB 2.0 Full Speed) connection, the
transfer of audio data with the computer
by USB is limited to either 2 channels of
input or 2 channels of output.
The US-144MKII obtains power from the•
host computer via the USB cable. In rare
cases, a computer’s USB port may not be
able to supply enough power to operate
the US-144MKII. If this occurs, consider
purchasing a USB 2.0 hub that comes
with its own external power supply.
iDIGITAL IN (COAXIAL) connector
Coaxial digital input jack that conforms
to the IEC60958 (S/PDIF) standard for
consumer use.
oDIGITAL OUT connector Coaxial
digital output jack that conforms to the
IEC60958 (S/PDIF) standard for consumer
use and the IEC60958 (AES/EBU) standard
for professional use.
NOTE
Simultaneous input and output at
24-bit/96-kHz is possible with this unit’s
DIGITAL IN and OUT jacks.
pMIDI OUT connector Transmits MIDI
messages.
aMIDI IN connector Receives MIDI
messages.
sLINE OUT L/R jacks (RCA connector,
unbalanced) These are analog stereo output
jacks.
2 – Parts of the US-144MKII

12 TASCAM US-144MKII
3 – Installation
System requirements
See the TASCAM website for updated
information about OS compatibility.
Windows
Windows XP 32-bit SP2/SP3
Windows XP 64-bit SP2
Windows Vista 32-bit SP2
Windows Vista 64-bit SP2
or later
Supported computer system:
Windows compatible computer with a USB
port (USB 2.0 is recommended)
CPU/clock:•
Pentium 4 1.4 GHz or faster
AMD Athlon 1.4 GHz or faster
(or equivalent processor)
Memory:•
512 MB or more for Windows XP 32-bit
and Windows Vista 32-bit
1 GB or more for Windows XP 64-bit and
Windows Vista 64-bit
NOTE
Although this product has been checked for
use with typical computers that meet the
above operating requirements, we cannot
guarantee that it will operate with all
computers that meet these requirements.
Please be aware that even under the same
conditions, processing capability may vary
depending on differences of the design
and system.
Mac OS X
Supported operating system:
Mac OS X 10.4.11
Mac OS X 10.5.6
or later
Supported computer system:
Apple Macintosh series equipped with a
USB port as standard equipment
CPU/clock:•
Power PC G4 1 GHz or faster, or Intel
processor
Memory:•
512 MB or more
Installing the driver
In order to use the US-144MKII, you must
install the appropriate driver into your
computer. As described below, this is an
easy process using the CD-ROM included
with the US-144MKII.
Driver are updated from time to time. You
can download the most recent version of the
driver from the TASCAM website <http://
www.tascam.com/>.
Do not connect the US-144MKII to your
com puter before you have installed the driver.
CAUTION
Handle the enclosed CD-ROM with care.•
If the disc becomes scratched or dirty,
your computer may be unable to read it
and the software cannot be installed. If
the disc becomes unreadable, a fee will
be charged for its replacement.
Never attempt to play the enclosed CD-•
ROM in a conventional audio CD player,
as the resulting noise may damage your
speakers or your hearing.

TASCAM US-144MKII 13
Installing the driver for Windows
NOTE
During driver installation, a warning that•
“this software ... has not passed Windows
Logo testing“ will appear. If this message
appears, click Continue to proceed with
the installation.
During installation, you must connect,•
disconnect and reconnect the unit in
steps 7, 8 and 9. You should complete
each of these installation steps in less
than one minute. Installation may fail if
you take too much time.
Confirm that the unit and the PC are1
not connected by the USB cable.
Insert the included driver installation2
CD-ROM into the PC where you will
install it.
Click the “3 Install Driver” button when
the screen below appears. (If this sreen
does not appear automatically, find
and open the “Autorun2.exe” program
in the “Autorun” folder on the driver
CD-ROM.)
When the language selection screen4
(below) appears, select the language
you prefer and then click the “OK”
button.
Click the “5 Install the Driver” button
when the screen below appears.
Read the contents of the License6
Agreement, and select “I accept the
agreement” if you agree to the terms.
Next, click the “Install” button to start
installation.
When the screen below appears, use7
the supplied USB cable to connect the
unit to the PC.
3 – Installation

14 TASCAM US-144MKII
When the screen below appears, unplug8
the connecting USB cable from the unit
or the PC.
When the screen below appears once9
more, reconnect the unit and the PC
with the USB cable.
When the screen below appears, the10
installation is complete. Click the
“Reboot now” button to restart the PC
to use the driver.
After the PC has restarted, open the11
TASCAM US-122 MKII / US-144 MKII
(Start > Control Panel) or US-122 MKII
& US-144 MKII Control Panel (Start
> All Programs > TASCAM). If the
Driver Version, Device and other data
appear correctly, the installation has
succeeded.
3 – Installation

TASCAM US-144MKII 15
Installing the driver for Mac OS X
Confirm that the US-144MKII is not1
connected to the computer.
Double-click the "2 US-122MKII_US-
144MKII_1.14.dmg" on the included
CD-ROM. The "TASCAM_US-
122MKII_US-144MKII_1.14.mpkg" is
created on the desktop.
Dboule-click the "3 TASCAM_US-
122MKII_US-144MKII_1.14mpkg" on
the desktop to launch the installer.
Follow the instructions on the screen to4
conduct the installation.
Restart the computer and then connect5
the unit.
Uninstalling the driver
Windows
There are two ways to uninstall the driver as
shown below.
Using the Installation CD-ROM:•
Follow steps 1 to 4 under “Installing1
the driver for Windows” (See page 13.)
At step 5 of the procedure, click2
“Remove the driver”.
Follow the instructions on the screen3
for the remaining procedure.
Using Windows “Add or Remove•
Programs”
Open the “1 Control Panel” from the
“Start” menu.
Double click on “2 Add or Remove
programs”.
Select “3 US-122 MKII / US-144 MKII”
from the list and click “Change or
Remove Programs”.
Follow the instructions on the screen4
for the remaining procedure.
Mac OS X
Insert the CD-ROM into the PC and1
double click “TASCAM US1xx remover”
icon.
Follow the instructions on the screen2
for the remaining procedure.
Frequently asked installation
questions and answers (FAQ)
Windows driver installation
Q: When I connect the unit to a computer,
the Windows “Hardware Wizard”
appears and I cannot install the
driver. Am I making a mistake in the
installation procedures?
A: Close the Windows “Hardware Wizard”
and disconnect the unit. You must install
the driver before connecting this unit.
Insert the CD-ROM included with the
product. The menu for installing the
driver appears automatically.
3 – Installation

16 TASCAM US-144MKII
Select “Install Driver,” and follow the
instructions shown on the screen. If you
have downloaded the driver from the
TASCAM website (htt://www.tascam.
com), expand the ZIP archive, launch
the “setup.exe” file, and follow the
instructions on the screen.
Q: I loaded the installation CD-ROM into
a Windows computer, but the driver
installation menu does not appear. How
can I access this menu?
A: The automatic playback settings for the
disc drive might be disabled.
Open the CD-ROM using Windows
Explorer, and double-click the
“Autorun2.exe” file to manually open
the installation menu.
Settings on your computer
Here are a few basic points to help you set
up your computer for best performance with
audio applications.
Do not run other applications. You•
will probably use your computer for
applications other than audio, but we
recommend that you avoid running
other applications at the same time you
are running audio programs. Processing
digital audio places a considerable load on
your computer.
This means that if you are running other
applications (especially graphics or
Internet tools) at the same time as your
audio application, the processing may not
happen fast enough.
Installing Cubase LE4
For details see the Cubase LE4 Quick Start
Guide.
3 – Installation

TASCAM US-144MKII 17
Overview
The Control Panel lets you make various
settings for the US-144MKII’s functionality.
On Windows XP and Windows Vista, the
US-122MKII & US-144MKII Control Panel
shortcut can be found in the Windows Start
menu > Control Panel or the Start menu >
All Programs > TASCAM.
On Mac OS X, the US-122MKII & US-
144MKII Control Panel is located in the
Applications folder. Other useful audio and
MIDI settings for Mac OS X can be found in
Applications/Utilities/Audio MIDI Setup.
The Control Panel is divided into the
following two sections.
Status section
This shows the current status of the driver
and the connected hardware.
You cannot edit the settings from this
section.
Setting section
You can edit the various settings of the
driver.
NOTE
The Mac OS X US-144MKII control panel
has no settings.
Control panel settings
Audio Performance
The US-144MKII driver temporarily stores
input and output audio sample in buffers.
The size of these buffers can be adjusted.
A smaller buffer size will reduce the delay
when monitoring the audio signal, but
will require your computer to perform the
processing faster. If the processing does
not occur in time (e.g., if other system
operations are occurring), you may hear
clicks, pops, or dropouts in the audio signal.
A larger buffer size provides more safety
against such problems caused by other
system activities, but will produce greater
delay when monitoring the audio signal. You
should select the buffer size that works best
for your system.
On the Windows version of the US-144MKII
Control Panel, the Audio Performance
setting permits you to adjust the buffer size
that will be used by all audio applications.
The lowest latency setting is the minimum
buffer size, and the highest latency setting
is the maximum buffer size.
On Mac OS X, the buffer size is determined
by each audio application. Consequently,
there is no Audio Performance setting on
the Mac OS X version of the US-144MKII
Control Panel. Some applications select
the buffer size automatically while others
permit the user to select the buffer size.
Please consult your audio application’s
documentation for details.
4 – US-144 MKII Control panel settings

18 TASCAM US-144MKII
Sample Clock Source
The clock source can be set to “Automatic”
or “Internal.”
Automatic (default): If a clock signal is•
input through the DIGITAL IN jack, it is
used. If no signal is input through the
DIGITAL IN jack, this unit’s internal clock
is used.
Internal: This unit’s internal clock is•
always used.
When using digital input, set this to•
“Automatic.”
Digital Output Format
Set the digital output format to “AES/EBU”
or “S/PDIF.”
“ch1 and ch2” and “ch3 and ch4”
This unit sends 4 channels of signals to the
computer by USB.
Use these settings to select which of
this unit’s inputs signals are sent to each
computer input pair.
Select analog inputs or digital inputs.
LINE OUTPUTS and DIGITAL
OUTPUT
The computer inputs 4 channels of signals to
this unit by USB.
Use these settings to select the signals to
be output from this unit’s LINE OUT and
DIGITAL OUT jacks.
Set them to “ch1 and ch2” or “ch3 and
ch4.”
NOTE
If you want to output Windows Media
Player or iTunes, for example, through
this unit’s DIGITAL OUT, set the “DIGITAL
OUTPUT” to “ch1 and ch2” in the Control
Panel.
USB 1.1 Mode Input Selection
This appears only when operating with USB
1.1.
Set the input source to “analog” or “digital.”
4 – US-144 MKII Control panel settings

TASCAM US-144MKII 19
USB connections
Using the included USB cable, connect the
US-144MKII to your computer as shown in
the illustration.
NOTE
Some USB devices access the USB bus
frequently. To avoid dropouts and clicks in
the audio signal, we strongly recommend
that you do not connect other USB devices
to the USB bus used by the US-144MKII.
USB keyboards and mice are exceptions to
this, and will probably not cause problems.
Audio connections
Connect the output signal of your mic,
guitar, keyboard, or other audio device to
the US-144MKII, where it will be converted
into digital audio and sent via USB to
your computer. Connect the output of the
US-144MKII to your speakers (via an
amp) or headphones, so you will be able to
monitor the audio signals coming into the
US-144MKII or being produced by your
computer.
The balance between the input signal from
the mic and guitar and the output signal
from the computer should be adjusted by the
MON MIX knob.
NOTE
The US-144MKII has two input channels (L,
R), with a MIC IN jack (XLR) , LINE IN and
LINE/GUITAR IN jack (1/4” phone jack)
provided for each channel. Do not connect
signals to both of these analog input jacks
at the same time. If both are connected,
the signal will not be correctly input to the
US-144MKII.
Mic
Connect your mics to the MIC IN (L, R) jacks
(XLR). If you are using a condenser mic
that requires phantom power, turn on the
PHANTOM switch.
Computer
USB
5 – Connections

20 TASCAM US-144MKII
CAUTION
Connecting a dynamic mic with an•
unbalanced connection could damage it
if the PHANTOM switch is ON.
Do not connect or disconnect mics when•
the PHANTOM switch is ON. Doing so
could cause loud noise or damage the
equipment.
Use the PHONES and LINE OUT knobs to•
minimize the volume before turning the
phantom switch ON or OFF. Depending
on the mic, loud noises might be
produced and damage could be caused
to equipment or to people’s hearing.
NOTE
When the PHANTOM switch is ON (and•
the unit's power is ON) the PHANTOM
indicator lights on the top panel.
The pin configuration of the unit's XLR•
connector is:
Pin 1 = Ground
Pin 2 = Hot
Pin 3 = Cold
Guitar
Connect your guitar to the R-channel LINE/
GUITAR IN jack (1/4” phone jack) on the
front panel and set the MIC/LINE-GUITAR
switch on the top pannel to GUITAR.
Sound module/MD/CD etc. (digital
connection)
Connect the digital audio output of these
devices as follows.
Sournd module/
MD/CD or similar
device
DIGITAL OUT
DIGITAL IN
NOTE
This unit’s digital input jack is an RCA pin•
jack.
This unit can output either S/PDIF or•
AES/EBU digital signals. Set the type of
output using the control panel.
Guitar
5 – Connections