250 mm / 10″ subwoofer 300 / 600 Watts (RMS / Max.) 4 x 3 Ohms quad voice coil for compact vented enclosures (18 liters net volume) Resonance frequency: 29 Hz Extremely stiff, hand-scooped paper cones High-temperature resistant voice coils with large winding heights Double ventilated voice-coils for minimum compression effects Powerful magnets for compact-sized vented enclosures Connector terminal for MATCH subwoofer cables included in delivery Optimized for the perfect interaction with MATCH Plug & Play amplifiers.