Features Peak Power 2000W RMS Power 6000W PP Cone with Diamond Array Pattern 2 Impedance Steel Mesh Grilles Included X-Motif Cap X-Motif Cap controls resonance frequency and cuts unnecessary frequency delivering a powerful and solid bass response. Closed Yoke with Advanced Airflow Control Subwoofers have a robust thermal management system implemented with Aluminum Bobbin Closed Yoke Design and Advanced Airflow Control. Stressed Controlled Spider Computer-optimized damper controls stress and increases mechanical durability. Multiple Position Options Forward Rear or Down-Firing installation available. Slant Back Design Easily fits behind the rear seat of an SUV and is more effective in suppressing standing waves that typically occur in a standard square enclose. 3/4" THICK MDF Baffle 5/8" MDF construction with 3/4" THICK Baffle provides more strength and durability ensuring accurate bass even at high volume. Included Steel Mesh Grilles The enclosure includes protective grilles for further enhanced durability. Enhanced Down-Firing Structural Support Extra thick legs support the weight of the system when installed in a down-firing application. This ensures the low-frequency energy is transmitted without loss resulting in powerful impactful bass. Reduced Port Noise The port's rounded shape reduces airflow resistance and noise generation. Precisely Power Matched The P-XW1221D Subwoofer enclosure is precisely power matched with the eXcelon XR601-1 amplifier. What's in the Box Tapping Screw 5 x 25 8pcs Mounting Plate 2pcs Warranty Card Specifications Electrical Impedance: 2 Peak Input / Maximum Power: 2000W Maximum Input Power: 1200W Rated/RMS Power: 600W Sensitivity: 88dB Frequency Response: 31Hz - 300Hz Mounted Speaker Woofer Size: 12" Number of Woofer: 2 Cone: Injection polypropylene Surround: Urethane Basket: Steel Gasket: ABS Magnet: Ferrite Enclosure