Defacto

I bought a pair of Forte II speakers last weekend. I've been loving them! But, I cranked the volume to 80 and the Onkyo TX NR656 receiver shut down. (45-50 is more common for me.) Upon restarting it, error check speaker wires comes up. All is fine again until I crank to 80. I see no issues with the cables. Could this be a speaker problem?

@Iteachstem I am looking for two of your K-31-K but with KLF-30s attached. 🙂 I keep reading that you've refinished, glued and re-horned, etc the KLF-30s that I've come across.