Received my Radial Engineering Cab-Link today. It is useful for linking (duh) two same ohm cabs to a single amp output. I have a Marshall Origin 20H and two 1x12 (8 ohm cabs: Celestion Greenback 25w and V-Type). This allows me to connect the two cabs and the amp output in series creating a 16 ohm load. It seems to work exactly as it should and seems to be solid/well built. There is an option to input in parallel that will half whatever your speaker impedances are. I hope that awareness of this product may be helpful to someone else searching for a solution to the same problem. I found that in my limited experience that I like the tone of the two speakers together more than each individually.