Lugging great big guitar amps around is no fun, although if you’re a professional roadie, at least you get to nick the band’s drugs (ace if you’re on the road with Led Zeppelin, not so much fun with Babyshambles). However, the new Roland Micro Cube will give roadies’ backs a treat.

Okay, so it’s more for buskers than touring bands. It’s an ultra-compact guitar amp that’s powered by batteries or mains, and weighs just 7.5 pounds, despite squeezing in enough oomph to raise the hairs on passing commuters’ necks if you’re playing it down the underground.