I embarrassed to let you know the true extent! However I think I had almost every type of Beomaster with very few exceptions - I didn't have a 6500 but did have 5000, 5500 and 7000. Equally I had the BC9500 (actually on my third! - fantastic bit of kit!) but neither 9000 or 9300. I essentially stopped audio when they stopped doing touch sensitive controls, only going back for the BC2 with the touch sensitive aluminium - very clever and I don't know why the stopped this. I have relatively few bits now: BC2, BC9500, BM4401, BG CDX, BG4000, 4004 and ahem 4001. Also BM/BL 5000 and BG3000 Thorens, a collection of phones though just given Multicare a box full of 6000s. I did have a stupid number of speakers including 3800s with the tulip stands - these are a UK speaker really for complex reasons due to purchase tax. Now have far fewer though do have M100.2s and Beovox 2500 Cubes. Have a fair amount 'lent' to friends but don't want it back. One of my most used items is a Beolit 700 - fantastic device! I have not mentioned the TVs ... To be honest, B&O TVs are no longer in my view what they were - B&O used to be all about ease of use and ergonomic brilliance and the new equipment has rather lost that in the pursuit of styling. Still like it and there is nothing else that has taken its place. Sadly my most used music devices are Amazon devices! I did tell B&O that voice control was the most important step forward about 20 years ago but that was before Amazon and Google perfected it. Laughably, the major use of my Moment is to allow an Amazon Dot to play through Beolab 4000s via the line input!   I do have a close typed list of all I had - on three pages!  However I am slowly recovering!