Been using my ESW since I bought it new years ago. Works very nicely with my Allison Ones. I have 2 Carver 4.o's bridged and they power them quite nicely. It only really shines when there is content down that low. Otherwise, you won't notice it. I would have loved to get the one mentioned above. Sad Roy passed away in 2016. If you have clean power those woofers are bullet proof....