Well....
If names like Manley, Sonic Solutions, GML, Crainsong, Apogee, Sadie, ProTools, Focusrite Red, TC Electronics, etc....don't ring a bell, you wouldn't know what they use. If you are asking, well, you either are not ready to do it, or you have nothing in the way of a budget for this stuff. I would say that the average competent mastering room would run you about $30K at the very least!
T-Racks? Not even close to the same league. Just no way you can spend 1/10th the price and get something that has the fine detail and resolution of a real mastering system. Plus, it is a 24 bit internal dsp path, which really doesn't equate to "pro" quality.
If you are interested in putting something together, and have at least $30K to spend on it, send me a email and we can talk about me consulting on putting together a suite for you....
Good luck.
Ed