This product is badass, its 500w, peak, but it still hits pretty hard, almost as hard as the 15' alpine type R, but my type r is way loud compared to this memphis. overall its a good sub

Good Bass response
Low cost
Easy to find.

Could be complicated to inexpirienced people who havent done much wiring

These subs are definatly bang for the buck. they produce a wide variety of high and low bass frequencies and you can hook them up to a wide variety of amplifiers. If you want a good system with little to no distortion and have good bass responces these are for you.