How do they work? Ive got a good pair of DCM Loudspeakers that I love, and a pair of some Orions I picked up for real cheap at a garage sale. One of the Orions work, the other has 2 speakers missing. My question...Is there a circuitboard or some kind of crossover inside the speaker to divide the frequency? Im thinking about fixing up the Orions with tottally new speakers because the cabinets are pretty decent.