Not a very pretty sub but what it lacks in looks it makes up for with performance. The low-end is ****in monstrous and the sq is pretty good too. Believe me, with that little of watts, you will not find a sub that dips as low as loud as the shiva does.
Just call them up. The price is 125. If they don't have them in stock they will probably suggest their dpl12 which is a shiva with a spoke basket and a gasket on the front flange of the sub so it can easily be inverted (even though it doesn'y have to be inverted)