Owner`s manual
3 – Installation
TASCAM US-122 — 13
Macintosh
NOTE
Run the Installer with the US-122 NOT con-
nected to the computer.
There are two files for the Macintosh:
•
US-122_OS_9_x_yy.hqx for pre- OS X 
systems (OS 8.8 and above)
•
US-122_OS_X_x_yy.sit for OS X sys-
tems (OS X 10.2.3 and above)
Where x and yy refer to the version num-
bers of the software.
1 Insert the CD-ROM into the com-
puter, and drag the appropriate 
installer package to your hard 
disk.
2 Double-click on the appropriate 
US-122 installer package to expand 
it.
3 Double-click the resulting installer 
file, and follow its instructions. 
In OS X, you will need to enter an 
Administrator name and password 
to install the drivers, etc.
4 Connect the US-122 to the com-
puter. When the US-122 is con-
nected, the system will find the 
drivers which have just been 
installed by itself.
Setting Up OMS (Mac OS pre-X only)
Cubasis, ProTools and several other 
applications rely on OMS for MIDI 
implementation. OMS (Open Music Sys-
tem) is a standard for MIDI management 
on the Macintosh. Since the US-122 can 
send and receive MIDI, you will need to 
install OMS in order to use the US-122. 
The exception is Digital Performer, 
which utilizes FreeMIDI. The drivers 
support OMS and FreeMIDI indepen-
dently.
To set up OMS to work with the 
US-122: 
1
First, run the OMS installer. If you 
do not have the current version of 
OMS, it may be freely downloaded 
at www.opcode.com. 
2 Locate the US-122 Drivers folder, 
which was placed on your desktop 
when you ran the US-122 installer. 
In this folder, locate the US-122 
OMS driver. Drag the US-122 
OMS driver into the OMS folder 
inside your 
System folder. Do not 
drag this file into the Opcode 
folder on your hard drive - it will 
not work correctly
3 Restart your computer. Then con-
nect the US-122 and start the 
OMS 
Setup
 application (located in the 
Opcode folder on your hard drive).
4 Select New Studio Setup from the 
File menu. When prompted to 
select a serial (modem or printer) 
port, leave both selections 
unchecked. Click 
Yes and continue. 
OMS will assess all the MIDI ports 
attached to your computer and 
build OMS instruments for the 
ones it recognizes.
5 When the setup is complete you 
should see a list of all your con-










