would this work?

hi if i was to connect a external rocksan k2 amp to a usa onkyo 5009 and connect a phono interconnect from the pre amp outputs of the onkyo 5009 to the input of the roksan k2 amp would it give me 11.1 channels instead of 9.2 and would the roksan amp have the connections to work between the onkyo 5009 and roksan k2 amp and also what would i have to change in setup options on the onkyo 5009 and roksan k2 amp to make it all work please need help asap please