While I agree strongly with what N. Abstentia says, there is actually an even more compelling reason for it than the fact that the Bose system is no good. I have had a Bose system cause malfunctions in TWO AVR135's, as I described in another thread before. Basically, feedback (I figure) from the Bose system caused the recievers' volume controls to malfunction, which incidentally is a problem that doesn't usually occur on the latest series of HK's. When I took them off and hooked them to another system, they both worked flawlessly. The combination (AVR135 / AM15II) worked fine (didn't sound good, mind you, but it functioned) for a few days, and then started going all wonky on me. I'll grant that it was likely an isolated incident, but it wouldn't surprise me a bit to find out that Bose systems send out enough feedback to harm your other equipment.

If for some inane reason you decide not to take our advice and replace the speakers , you'll want to first set both of your front speakers to "large", then center and surrounds to "small", and then subwoofer to "none". This will allow full-range information to be sent through the front left and right outputs into the bass module, where it will then be hacked and mangled (Brave Sir Robin), retaining all information below 200 Hz for itself to belch out, whilst anything over 280 Hz or so will then be reproduced by the satellites with a startling fidelity reminiscent of William J. Clinton himself. If ever you decided to add a subwoofer to your system using the LFE output, you would then change the subwoofer setting to LFE+L/R.

Seriously though, return the Bose system, buy yourself some better speakers, and then buy all those movies you've never found time to watch with the money you have left over.