I tried each of my speakers with that amp config. At least in my listening room (which I'll admit is not huge), it was not really an improvement. Even when running the amps in stereo, with "only" 230-240wpc available to the speakers, I hit the limits of the woofers before I run out of amplifier power. The woofers making a loud "pop" as the voice coil slams into the pole piece can ruin a good night of music listening quickly, but unfortunately increasing my power to the speakers doesn't help me with that problem.