[jmciver]

When I tuned the underseat woofers (i.e. EQ’ed them) together with the rest of the system, I lowered the gain a bit on the two woofer channels to help prevent the distortion you described (and also match the target house curve I was shooting for). I set my crossover at 35 Hz on the Audisons which seems to work well. I also use the URC3 remote, which also gives me some additional volume control over the underseat woofers. As I said before, I don’t use SubXpander which was the biggest culprit for that type of low end distortion.

Lots of different ways you can adjust the low end frequencies for good sound without distortion. But the Audison woofers do ultimately have thier limits…