Yes, very compatible. As mentioned above, the BL 2000 is ML cable linked to your BS 3200 stereo.
1. They work very well in smaller rooms, hallways, garage workshops, etc. I suspect they can be used in an outdoor setting (if covered from the weather) as I have used 4 inter-connected in a high humidity, salt air location without problems near the Equator since 2001.
2. The BL 2000 can be controlled in these locations using a BEO4, or BEO5 remote, or by hand using the selection buttons and turning knobs. Very easy to keep clean.
3. From a remote location, you can select sound sources such as RADIO, N.RADIO, N.MUSIC, CD, N.TAPE (the 400 CD option stored onto the BS 3200 ), TV, and if your BS 3200 is used as a Home Theatre source, DVD, and SAT TV audio.