I'd go by the 1st power rating since that represents a more realistic output across the entire music spectrum, not just at 1 kilohertz.
I have that receiver connected to Klipsch speakers (which tend to be highly efficient). This is enough to create painfully loud, but clean sound. Sorry, but I don't know the efficiency of the Diva's.
I have that receiver connected to Klipsch speakers (which tend to be highly efficient). This is enough to create painfully loud, but clean sound. Sorry, but I don't know the efficiency of the Diva's.