Amazon offers the Sony SA-W2500 Performance Line 10" 100-Watt Subwoofer for a low $59.99 plus FREE shipping. Limited time offer. You save 17% off the price! That's the lowest price we could find. This has a 4.5 out of 5 star rating with 452 reviews at Amazon.

• 100-watt amplified subwoofer
• 10" mica reinforced woofer
• Motion feedback technology
• Speaker and line-level inputs
• Frequency response of 28-200Hz
• 18.5 x 17 x 14.6 inches; 22.4 pounds weight