Monolith by Monoprice M-15 V2 15in THX Certified Ultra 1000-Watt Powered Subwoofer $875.19 (save 724.80) w free shipping

[JMB]

https://www.monoprice.com/product?p_id=42851

 

[JMB]

12 inch also on sale
https://www.monoprice.com/product?p_id=42849