I have the same problem few other users had complained
I have US-144MKii with Mac OS - Mavericks
Versions on the Tascam control panel (Driver 3.00 d8, firmware 2.03)
and midi setup is Core Audio as mentioned in the manuals.
The input is working, but output does not work.
Infact, I have formatted the mac and installed mavericks from scratch. Hence there are no chances of old versions present.
What could be wrong?/
I have US-144MKii with Mac OS - Mavericks
Versions on the Tascam control panel (Driver 3.00 d8, firmware 2.03)
and midi setup is Core Audio as mentioned in the manuals.
The input is working, but output does not work.
Infact, I have formatted the mac and installed mavericks from scratch. Hence there are no chances of old versions present.
What could be wrong?/