So xmax is not important I thought it had something to do with max spl or air moved . Thanks !!! Great information , theater subs go the lowest , car subs don’t go as low . PA subs aren’t really subwoofer cannot do under 38hz usually .Who cares what the max input of your sub is. Frankly, it's a figure that doesn't mean much. As long as you pay attention to the sound you can safely use any amplifier ever made regardless of it's output wattage rating. It's really quit simple. If you sense strain or distortion turn the volume down. You're either running out of amplifier power or the speaker is being driven to hard. In either case turn it down. Change whatever necessary to get the sound you want.
And please, stop mentioning X Max as if it makes a difference in how a subwoofer sounds. Subs for the home don't usually use that measurement as any sort of a determining factor for how they sound. It's how they sound, not a spec that makes the difference.
At your age you're most likely a bass head. Many of us older "listeners" are also bass heads. Most of us have learned that there is such a thing as too much bass.
I’ve never turned it up loud enough to clip it the amplifier. In 12x 12’ room is one sub enough?



