Bazookas are real good setups for when you need a lot of bass but you don't have a lot of space....such as Mustangs..Focus's ...Hondas..etc.However they sound comepletely oppositte when you use them in large vehicles with cavernous interior space.They were meant for vehicles with very little air space.Thats where they perform their best.You will hear them in the suburban,but you will be rather disappointed with the results.You're not going to get much volume (db) out of this.Your best bet would be to use a ported enclosure.And use a different set of speakers.The subs in the bazooka tubes wont do as they were specifically designed for the tight airspace,and calibrated for the tube dimensions.If your strapped for cash and on a budget,check E-bay for some cheaper but nicely performing subs.Good enough for the time being and well within your budget.Should be good for that amp even.Alpine amps ,especially the class D types are good performers.