JL Audio manual for troubleshooting-funny...
Got two JL Audio F110 subs recently and I'm enjoying the improvement they've made in my 2 channel system. Bass is back! Also enjoyed the last item in the troubleshooting portion of the owner's manual:
Your Fathom is clearly audible outside of your house.
1. Revisit the “Master Level” setting on your Fathom(s) or your home theater receiver/
2. Inquire with your JL Audio dealer about noise isolation strategies.
3. Move the Fathom away from windows.
I might add, "ask your neighbors if they want to come in and enjoy the music".