So many are quick to rip on McIntosh, calling the sound dated, slow, dull etc.. I have owned quite a bit of Mac gear throughout the years and have always found it ultimately listenable for hours on end. Build quality is top drawer. I think that you will find that all Mac preamps have a similar sound (I did), whether tubes or solid state. That always impressed me, because they are equally voiced. And yes, I love tone controls. When I want a little more top end I adjust the treble, a little more bass, same thing. I have too many friends that adjust their treble and bass by changing cables.. I just shake my head.
Enjoy your C-22. It's and excellent choice.