well the two ohms would give you the most power but it doesn't look like your amp can handle it. At 4 ohms bridges if i remember right it is like each side sees 2 ohms. If you run 2 ohms bridged each side will see 1 ohm and if the amp isn't stable it will get hot or shut off. To keep it safe the only option i can see is 8 ohms bridged. To get 8 ohms you would go positive from amp to positive on one speaker then the neg side to the pos of other and then the last neg would go back to the amp. With a bandpass box i would only run the amp bridged.
amp(+)----(+)speaker 1 (-)----(+)speaker 2 (-)------(-)amp.
Turn it up slowly and if you get no sound or little turn it off quick and flip the + and - on one speaker.