The ASW675 is basically a workhorse subwoofer. It has a 10″ paper/kevlar woofer which is powered by an onboard 500W amplifier. Frequency response is from 22Hz to 110Hz which proved to be plenty in most applications unless you have a large room and want to fill that room with bone shaking bass. In a small to medium size room, the ASW675 was prefect. Subwoofer has some marks here and there from use but works 100%. We don’t have the original box but will securely packed it for safe shipping. Manual is available online.