Speed of Sound Audio Experts showcases a clean and powerful 2025 Ford F150 subwoofer install built for deep, controlled bass. This upgrade features a Ground Zero subwoofer for F150, DB Drive amplifier, Fox Acoustics F150 sub box, and bass restore amp install with bass roll-off fix. Trusted truck audio experts in NH, we deliver professional truck subwoofer installations and full F150 sound system upgrades.