I had a solid state Peavey, I think it might have been a Mark 3, and an 18" Bass cabinet. THis would have been around 1978/79.
Burman was available at that time, Muir Music in Manchester had several of them, but they were certainly out of my reach as an impoverished student. Even so, some people thought they were too cheap: Dave Lunt remarked at the time that, given the cost of the components, he wouldnt even plug his soldering iron in for the profit margin.