Fill out the sound of any audio system with the Audioengine S8 Powered Subwoofer. The S8 comes with our Isolation Elastomer Feet, which reduces vibration and resonance so you'll experience cleaner, tighter bass. Pro Tip: Place the S8 under your desk or against a wall in larger rooms. The S8's down-firing design provides deep bass, making it ideal for home theaters or living rooms. 250 watt, 8-inch powered down-firing subwoofer with auto-sleep power saving mode. Solid hand-finished, front-ported MDF cabinet, dual line-level inputs (RCA and mini-jack) and LFE, selectable crossover frequency adjustment, and phase switch. Frequency response: 27Hz - 180Hz (+/-1.5dB). Elastomer isolation feet to reduce vibrations and resonance. The S8 also features connections for wireless expandability via the Audioengine W3. All Audioengine powered speakers via the analog output. Compatible with AV receivers or preamps and other powered speakers with variable line level output. Audioengine S8 Powered Subwoofer, RCA audio cable, mini-jack audio cable, AC power cord, Microfiber cloth bag, quickstart guide.