Hello,
We use a bose home system serie 3, with a subwoofer and 4 dual speakers and 1 central speaker, the system is now 12 years old, every time u set it up in a new room you need to callebrite the bose system with its dvd setup. We love the system as it adapt to the room acoustics you are using, it. I have contact the service from bose directly and they are very helpfull even for a old system. we purchaced it and registerd it, so they find us back and help us. (i dont now if second hand system has the same support) when we moved it to or current boat the dvd was not working annymore (11 years old) and the repaced it for free (only the transport we have to pay). there are a lot of sound systems arround, but bose is one of the specials that adapt it to the room acoustics. we love it
Best regards,
Patrick