aball...
the 803's are an 8ohm / 90 db speaker, which means they are fairly easy for an amp to drive. the totem mani2 is a 4 ohm / 85 db speaker, which means that it is going to be MUCH more difficult to drive. i'm not much of a techie, but i believe that my speaker would be about 3x more difficult for an amp to drive than the 803's.
if i'm way off base, someone please correct me!