We've owned a pair of Klipsch Chorus II speakers since 1998. These are stated as 101 db efficient.
We've been playing our Decware Zen amp through them for a year now. Plenty LOUD/CLEAN and..................... beautiful!
Don't know what else to say. We've never been happier with a stereo component in our lives. Period. Decware~

It's 6 degrees right now...but outside I go
~All the best~ US. In the sticks~