There are some drivers for Avid Mbox2 Pro edition (?)
& says some for Mavericks, & were available Jan 2013.
http://avid.force.com/pkb/articles/en_US/Download/Mbox-2-Pro-Drivers?
However I don't really know much about the product
or the difference between the Mbox2 vs Pro, if any...
{The original product came out in about 2006 and used
a FireWire audio interface according to driver site info.}
And then another page goes to other Avid products & drivers, etc.
where they go on to say Mavericks is not supported by those...
Note the Mavericks alert and other later OS X information on the
following page... starts with wording like this:
Important Note: Mac OS X 10.9.1 Mavericks is NOT approved at this time.
• Drivers for Avid Audio Hardware
>Last Updated : January 7, 2014
>Products Affected : Eleven_Rack, M_Audio_FireWire_Interface, Mbox_2,
Mbox_2_Micro, Mbox_2_Mini, Mbox_2_Pro,Pro_Tools_Mbox,
Pro_Tools_Mbox_Mini, Pro_Tools_1_6, Pro_Tools_HD
http://avid.force.com/pkb/articles/en_US/download/en379411
++ -- ++ -- ++ -- ++
I can't say as I have Avid Mbox ^ knowledge of/or where else to look.
One idea may be to revert to an older OS X, maybe have it on an
external hard disk drive & be able to boot from it, to use older Stuff.
Back to the Samsung TV as display, not sure if the 'DVI adapter
and cable' would add High Definition to output final resolution.
Someone at the Apple Sales support or a retail store may know,
but a product specialist for the MacBook Pro should, or a genius.
Sorry to not know more about those things.
Good luck & happy computing! 🙂