The H20-G is a powerful weatherproof industrial horn loudspeaker with compression driver. It offers a high sound pressure, which makes this loudspeaker ideally suited for speech and the reproduction of alarm signals in a noisy environment. The H20-G is ideal for long-distance and outdoor use.The stainless steel brackets and rust free bolts and screws make this horn suited for indoor and outdoor use. The bracket also makes it possible to rotate the speaker over a range of more than 180 degrees. Because this horn speaker is constructed in high impact ABS, it is able to withstand even the harshest of elements.The H20-G loudspeaker is equipped with a high quality 100 volt transformer with several power taps, and can also be used in 8 ohms systems. The Apart technology avoids any overload of your amplifier by controlling the impedance with the unique IMC protection device inside.