Preparing for a house move I came across "The Cube" (from IsoTek) in a cupboard which I had sort of forgotten about. Not used it for ages, from what I remember it cleaned up stuff nicely.

Before I plug it all back in (and commit say an amp to it) is there any way I can test it? Obviously mainly if it still works but also if it cleans things up.

Bloody heavy beast - must be over 30kg.