ARQ 18 is a passive loudspeaker composed of an 8 "loudspeaker and a 1" compression driver, designed for fixed installations, both in low impedance and on a 100 volt line, with 240 W program at 8 Ohm or up to 40 W if it is used on a 100 volt line, having an impedance selector for this purpose.
Made of plywood, they incorporate a metal grill and their input connections are made through terminals.