DBX 640M 6x4 Digital Zone Processor - 6 Inputs, 4 Mic/line + 2 stereo Line w/ Front Panel ControlThe ZonePRO 640M from dbx is a digital zone processor that features six channels of input and four outputs. The unit is suitable for installation in restaurants, fitness centers, retail stores, nightclubs and any other situation that requires multiple zone control of audio sources with paging features. The processor provides two balanced inputs on Euroblock terminals that are selectable as line or microphone level (with phantom power), along with four