Psi Car Audio Promo Codes & Coupons September 2026 — Up to 20% Off

Psi Car Audio’s bass line series is their entry-level subwoofer. These minimalist subwoofers were built with the same advanced components used in their large platform series of subwoofers, but have been stripped off leaving only the basic core components. These subwoofers offer great output and unexpectedly superior sound quality. For low-power applications or a limited budget, these subwoofers will not be defeated. The Star Power 2500 amplifier is a single-channel mono amplifier designed to operate at 1 ohm load and rated to produce 14.4 volts at 2,500 watts or more. Psi Car Audio's star power amplifier is designed to provide greater than rated power output capability, as well as maximum possible reliability. These amplifiers will meet or exceed their rated specifications.