Living Voice OBX-RW4 LoudspeakerOBX RW4 Loudspeaker OBX RW4 is the top model in the range, with outboard (OBX) crossovers. The OBX RW4 outboard crossover variant allows the capacitors, inductors and resistors to be isolated from the high levels of mechanical energy inside the loudspeaker cabinet. All crossover components are microphonic to a greater or lesser extent, so housing them externally minimises this feedback and provides appreciable benefits. Furthermore, an external