All-in-one music systems have come a long way from the table-top-sized music centre. These days not only do they cram a lot into a very small space, but they’re also on a mission to prove that hi-fi separates are not the only way to get top audio performance.

Ever since Denon threw down the challenge with its earliest D-M series components, the heat’s been on in this sector of the market, with challenges from leading Japanese rivals, and companies better-known for full-size hi-fi components joining the party with gusto. Here, we put six of the best through their paces, in order to answer the all-important question: which gives you the biggest sound from the smallestsystem?