I will add to this post instead of your previous one. Without getting too technical, yes, it would be similar to running 150 watts to to a 4 ohm sub. In my expierence i have found a the following to be true. In order to get good sound, massive amounts of power aren't always necessary. a quality amp that pushes good quality signals is key, however, if your amp is low power, you will find that if you play it loud for 30 minutes to an hour your amp will be hot and will shut itself off. One thing I know is that lowering the impedence on the speakers can fry an amp because there is less resistance and more current being drawn and the amp will heat up a lot faster (bridging down to 2 ohms when the amp isn't rated for it) I don't know what happens when you do the opposite. Enough rambling, based on the styles of music you are listening to it doesn't seem to me like you are trying to play John Coltrane at 130 db so you may just want to play it safe and spend a bit more money for a 4 ohm sub. If you are trying for a decent amount of thump and the price is really that good, then you should buy 2 of them. They are only 10" subs and I don't know of many people that only use 1 10". A lot of people who use 10's actually go with 3 of them which brings the impedence down to 2.66 ohms