Coming on for twenty years ago, I had a Trace Elliot 4x10 combo. It was, er, very heavy, so heavy that I think one of the girls I know (she was a 2m ex-blacksmith before the operation) would have had problems with it. I later finished up with a Tecamp Puma 900 and Barefaced BB2, which had the advantages not only of being lighter than the Trace but sounding better too. I've only played one gig with the current combo, a GR Bass carbon fibre combo at 9.5kg for 500W, so I have yet to confirm that the sound is as good but it was promising.