The peak power is a brief burst of wattage. This sub has a 200W RMS rating, but a 400W peak. I have the sub sitting on an Auralex Gramma foam isolation pad to prevent too much room shaking with the laminate flooring. I have it at 60% volume, and an 80HZ crossover point, and my chair at 10ft distance.
https://www.amazon.com/Polk-Audio-Subwoofer-Technology-Experience/dp/B075LQ2TNQ