Can you put a Krell in an apartment?

I would get a house, or a cabin, where you can install a true dedicated 20 amp circuit, and also, have the benefit of non connecting walls with others. If Krell recommends a dedicated 20 amp line, with your current apartment, this would not be the amp for you. Usually, ime, 20 amp circuits require heavier gauge in wall wiring. If I recall, the attached power cord, has a 20 amp plug. 

I can just see the KRELL taking out all the electric for the whole apartment complex. Lol!! Sounds awesome!!! I am going to move forward with the purchase and see if I can get an electrician over here to run a line from the main box on the apartment building. True "GONERS" never quit. Even if they live in a 500 square foot apartment in the hood. 

You should have the electrician check it out before you buy the amp. You're putting the cart before the horse!

In an apartment I'd run a smaller amp with better power conditioning.

Looking at the spec, it draws 350 at idle, 3,000 max.
The 350 is do-able in an apartment, but it will be a room heater. The maximum power draw at 15 A (the usual, non dedicated circuit)  is usually given to be 1,800 W.

You could probably get away with it, but I'd still recommend power conditioning that can handle 15 or 20 Amps, mostly due to how dirty apartment power can be.

Keep in mind, apartments = small listening area. You don't need as much power, and smaller speakers tend to do better. Treat your room as much as you can, and you'll be amazed at how big a sound you can get.