I'm pretty happy with the 450 watt premium "Dimension" audio system that came with my new Hyundai and I do not wish to devote much space or money to upgrading it. However, I think a powered subwoofer like the 100 or 250 watt 8" Bazooka tube may be a nice addition. Opinions?
I noticed the 250 watt Bazooka tube comes with a "Class D" amplifier instead of a "2-channel" amplifier. Assuming I keep my audio system's stock amplifier, would the 250 watt subwoofer tube be overkill? According to the Bazooka website, the Class D amplifier allows you to connect a second non-amplified subwoofer to double the bass output. If I do not use a second subwoofer, would the "Class D" amplifier still have some advantage over a similar wattage "2-channel" amplifier?
I'm leaning toward the 8" subwoofer tube which I think would fit snugly under the front dashboard on the passenger side. The Bazooka website says their tubes are optimized for placement in corners. Would it sound crappy if the speaker end was touching (or almost touching) a hard plastic surface? Does the tube need to be bolted/screwed securely to steel or will it still sound good cradled in foam (to prevent vibration noise) as long as the speaker is facing a hard solid surface?