I'm completely obsessed with those BeoVox models. I'm an admirer of Mondrian style so it's no surprise. Only problem is those three models seem to be few and far between for this American based enthusiast.

They do come up relatively regularly - I have a pair of lab 3000s and bought some 5000s not that long ago. Condition is the big decider on price - the Beovox range are clearly cheaper but seem less common. These were not huge sellers at the time so you do need to keep your eyes open. Lab 5000s - up to £1000 for a good pair - Lab 3000/4500 - £500/600. The prices can certainly be lower but watch out for condition!