I have an audio setup in room number one consisting of the Onkyo DS 595, and the Ascend Acoustics CBM -170 with the HSU VTF -2 subwoofer. I am using this to replace my older Bose Lifestyle 12 System. Can I connect the double cubes from the Lifestyle System to the second speaker outputs "B switch" of the Onkyo 595, and use it to listen to music in a second room. I will not be using both A and B at the same time? Also the Bose has a large base unit. How would I connect this, and /or do I need to connect it?