Advice please ; speakers for sunroom

[richmod]

Hi - new here, hoping for some expert opinions.

I currently own a Sony DAV-BC150 home theater system (100W per channel + passive subwoofer). I have the left & right channels hooked into a speaker selector, which allows me to select between the main room (where the system is) and also a pair of oudoor deck speakers. Well, we got rid of the deck and in it's place is a 15X15 sunroom (currently being built).

I would like to have a subwoofer and two small speakers in the sunroom. I don't need top-of-the line, but would like to be able to occasionally crank up Nirvana without distortion. The speakers will be mounted on the corners of one wall about 8 ft high. The sub will go in the corner of the opposite wall. I will use the existing deck speaker switch for the new speakers.

So, several questions:

- What recommendations do you have for speakers/sub? I am willing to spend up to $300 or so.
- What do I do as far as the subwoofer? My speaker selector only has one input, which is currently left and right channel. How do I switch between the main system sub and the new sunroom sub? Should I just get an A/B selector switch?
- If I go with Bose AM-3, that will solve the subwoofer issue mentioned above, but I'm wondering - since the main system has a separate subwoofer, will there be enough bass signal in just the left/right connection for the Bose bass module to put out decent bass?

Thanks in advance.