I have 2-10" JLWO 8ohms in seperate sealed cubes run by a JL 250/1 (up from my sony xplode 300w bridged).
I had both speakers wired on one line to the amp bridged when I had the sony running 8guage wire to the amp. I just swapped the amps and ran the setup again.
This amp can move the speakers!!!!!!!
My ears are now aching more than ever. My concern is that I was driving around and drew down the sound completely and heard a little fuzzzz-like sound coming out like a baloon deflating slowly. No sound, no lyrics, no bad sounding disturbance. It reved down after 5 seconds or so. I thought it might be engine noise but my sound was good before the amp swap. I bumped back the speakers and heard it coming out lightly under the sound and go away.
Yesterday, I pulled the wires and seperated the speakers to the amp. I has 2 + & - for this purpose. I couldn't hear it but I still need to tweak my sys. I was running them at the amp setting of 24db since the manual says this is the best if they are directly firing in the sounding environment.
BTW, all this is set up in a 2001 Toy Tundra AccessCab.
Could it be the higher output in the new amp is just stretching the speakers. I don't think I blew them but who knows. Now and then I hear a small tap in the speakers like when you tap the cap with pen or pencil.