argos 
Deal Score+26
$979
$1300
$979
$1300
Monoprice.com has Monolith M15-S 15″ THX Certified 1000-Watt Powered Subwoofer on sale for $979.34. Shipping is free.
The Monolith™ THX® Certified Sealed Subwoofer series sets the standard for bass output, low distortion, and affordability. With chest thumping bass that plays down to well under 20Hz, the Monolith subwoofer unleashes cinema level volume, with the ability to convey and articulate the subtle nuances of music.
