I've had a genuine experience with the Behringer B2030A monitors. For positioning, I keep them at ear level and make sure they're angled slightly towards my listening position to create an equilateral triangle with my head. This setup really helps in maximizing the stereo imaging and overall sound accuracy.
As for acoustic treatments, adding some bass traps in the corners of the room and placing acoustic panels at first reflection points can significantly improve clarity. Adjusting frequencies will depend on your room's acoustics, but starting with a flat EQ setting and then tweaking minor boosts or cuts around 100 Hz or 3 kHz based on what you hear can be helpful.
Integrating them with other equipment has been straightforward. Just ensure balanced connections if possible to minimize noise. If you're using a subwoofer, set the crossover frequency appropriately to ensure smooth frequency response across all speakers.