I've heard 1.7 vs. 3.7i - and they were surprisingly close.
the x.7 speakers have newer better technology and that might give the nod to the 1.7 over a 3.6 ... except for bass response
OTOH if you bi-amp the 3.6 you won't worry about the crossover
the x.7 speakers have newer better technology and that might give the nod to the 1.7 over a 3.6 ... except for bass response
OTOH if you bi-amp the 3.6 you won't worry about the crossover