Hello firstname.lastname@example.org! Thanks for posting and welcome to the Community.
With a little more information we may be able to identify the speakers you have and make a recommendation to get them a signal. Are you able to share some pictures? A front and back image of each type would be very helpful!
Greg - Community Support
Nov 12, 2015
Open a new message, look for the camera icon in the edit tool bar. When you click on the camera icon, you will be prompted to look for your photo file and add it to the message.
Based on what you have said you will require an Acoustimass module and some speaker wire to complete your inherited system. You might require a Bose speaker wire harness (8,9, 15 pin coupler) that connects to the Acoustimass.
The nice part of this you should be able to find the parts you require on many used speaker sites to complete the system quite easily.
First step...identifying what model cubes you have.