A boxed un-opened ASW608 active subwoofer. 8” sealed enclosure. Excellent quality and performance. Removable speaker grill Black finish Still under B&W warranty. Retail for £650 each. Really versatile as they accept speaker or line input. Can be used to improve small speaker performance by looping speaker cable through the subwoofer. Giving dedicated low end bass without needing to run additional cabling. If you can run line level into them they become dedicated LFE channel from your AV surround amp. Bargain price, brand new. Tight punchy bass, plenty of volume and settings for the most demanding set-up.
eBay