R.25-94Z by Community The R.25-94Z is a 2-way, full-range loudspeaker system designed to provide high quality voice and music reproduction in applications requiring extreme weather resistance. It is designed to withstand long-term exposure to tough, environmental conditions and to provide performance normally associated only with indoor loudspeakers. The R.25-94Z has an 8-inch (203mm)cone LF driver and a -inch (20 mm) exit HF compression driver with a weather resistant diaphragm. The HF driver is coupled to a nominal 90 x 40 horn. The HF assembly is coaxially mounted with the LF driver.