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Edit: I should also add that the reason I wanted 2 speakers in parallel (I normally would have purchased 1 speaker) is because I am going to be putting one above and below my 92" projection screen, to make it sound like dialog is coming from the centre of the screen.



Get yourself enough power and you can have two runs of 8ohm speaker sets (each set in series) in a parallel configuration, giving you four speakers with a total of 8ohm resistance.

1/R=1/(8ohm+8ohm)+1/(8ohm+8ohm)
R=8ohm

Play it loud...