KEF Kube 1 Subwoofers user reviews : 3.8 out of 5 - 0 reviews - audioreview.com
KEF Reference 8b Ultimate Subwoofer
Settled on a nice little 2.1 setup. KEF LS50 black edition, KEF Kube 8b. Nice and blended. May raise the LS50s to ear height with some stands but otherwise happy for now.
KEF - Kube KUBE8B 8" 300W Powered Subwoofer - Black - Open Box | eBay