Some condos may have double thick walls between them. Some that are smaller may be designed to have a garage between them on the lower floor which is almost like having a house.
Bass frequencies will travel through alot. If you like to listen at any significant volume with good bass then consider building a false wall and use resilient channel to mount the sheetrock. Also putting some lead sheeting between these two walls would help.
Your worst problem is most likely the bass. As I said it will travel along trusses and through walls. I've heard of people also mounting their speakers on something soft so as to not transmit vibrations to the floor.
Bass frequencies will travel through alot. If you like to listen at any significant volume with good bass then consider building a false wall and use resilient channel to mount the sheetrock. Also putting some lead sheeting between these two walls would help.
Your worst problem is most likely the bass. As I said it will travel along trusses and through walls. I've heard of people also mounting their speakers on something soft so as to not transmit vibrations to the floor.