Ali:
If the amps you list are the only ones available to you, buy the Levinson, as it is, by far, the highest current amp on your list (it has really big power supplies for a stereo amp and weighs 155 lbs.) that is reasonably young. The Krell monoblocks are even more powerful, but are so old that you should avoid them.
As I explained above, you should really bi-amp N801's, but the 333 is an appropriate amp for N801's.
I otherwise refer to my first post above.
If the amps you list are the only ones available to you, buy the Levinson, as it is, by far, the highest current amp on your list (it has really big power supplies for a stereo amp and weighs 155 lbs.) that is reasonably young. The Krell monoblocks are even more powerful, but are so old that you should avoid them.
As I explained above, you should really bi-amp N801's, but the 333 is an appropriate amp for N801's.
I otherwise refer to my first post above.