These are the biggest speakers from the Studiocraft ST-line. A real icon of the eighties. The sound is full, tight and clear, in my personal opinion one of the best sounding speakers ever made by Bose. They are quite rare and other from the models 200st & 300st which are still widely offered across the net, collectors tend to keep the 500STs (or ML5's) for themselves. These speakers are still in very good condition. They have some users traces but certainly nothing bad. Covers look great and both Studiocraft signs are still there. Speakers themselves are undamaged and can certainly play many more years in their current condition. See the photos for yourself. Recommended power: from 20 to 120 watts impedance 4-8 ohms weight: 8 kg height: 61 cm width: 34 cm depth: 21 cm Due to the size these will have to be shipped in 2 boxes!! Weight per box will be +/- 11kg.