Whether you’re new to car audio contests or a seasoned ... Frequency range, measured in hertz (Hz), tells you how low a subwoofer can go. But how you mount the speaker is important too.

Whether upgrading your car's current audio system or replacing ... You can choose to mount the subwoofer down-facing, upright, or on its side, giving you the flexibility to mount the subwoofer ...

We recently installed the Seventour ST-800 in our car and were impressed with the results. The subwoofer is slim and lightweight, making it easy to mount under our car seat. The bass is powerful ...