I used to have some Bullpowers They are actually very good for the money. They have quite a bit of punch. I had the 6.5in components, with moulded in crossovers.
Obviously they arent going to blow the world away though, for the money they cost. If you want a cheap solution, Id heartily recommend them.
Since getting the Clio I have noticed more bass from its standard fit jobbies, altough the clarity isnt as good. So Id say the Magnats were quite punchy and deliver more mid and top than bass. Just make sure youve got a sub or summat and youre sorted.