How much does this cost to the nearest dollar?

MartinLogan Dynamo 400 8-inch 150 Watt Powered Subwoofer - Black
Dynamo 400 features a 150 Watt (peak) amplifier, 8-inch audiophile grade woofer, and RCA and speaker level input options. Dramatic bass detail and attack, superb extension, and room-shaking output ensure a compelling music and home theater experience. Frequency Response 30–200 Hz ±3 dB. Anechoic in LFE mode. Low Frequency Transducer 8” high-excursion, inverted surround, polypropylene cone in a stamped steel basket with extended throw driver assembly. Ported. Amplifier 75 Watts (150 peak) Controls (Backplate) Level Min–Max Low-Pass Filter Bypass Phase 0°, 180° Power Mode

Price is $500.00
Price: $499.98