you mean whats the number it sees before it dies? AKA max wattage?
10,000 or a wall socket.
Seriously, never EVER talk about max or peak wattage again. Garbage useless trash numbers that you should NEVER look at or take into account for anything EVER again.
The extra weight means a MUCH stronger motor translate to loudness and better quality then whatever else you suggested.
Also higher wattage numbers doesnt mean the sub is louder it just means you need to feed it that much amplifier power for it to get loud. aka power handling. unless you have ridiculous amounts of amplifier power like over 3k rms, you shouldnt worry about power ratings. Look into the sub's contruction, basket, motor, voice coil, designs cone construction, Electromechanical parameters aka ts specs. all those are the proper way of knowing if a sub is good or not.
When you go out and shop with just power numbers and ratings in mind is how you get led to buying garbage products aka boss, pyle, power acoustik, lanzar.