I'd look at the sensitivity and impedance specs to see what would be more appropriate for the amp you have; as was said the speaker wattage ratings aren't very useful except as melting points usually (and not likely they'll sound good at these levels of input). Klipsch tends to have fairly good sensitivity ratings so they work well with most amps well enough. Should choose the speaker on what sounds better to you more than worry about the amplification, tho. What specific models of Klipsch do you have?
I'd look at the sensitivity and impedance specs to see what would be more appropriate for the amp you have; as was said the speaker wattage ratings aren't very useful except as melting points usually (and not likely they'll sound good at these levels of input). Klipsch tends to have fairly good sensitivity ratings so they work well with most amps well enough. Should choose the speaker on what sounds better to you more than worry about the amplification, tho. What specific models of Klipsch do you have?
Considering Klipsch RP-160m