uses a combination of high-powered yet lightweight speaker drivers made to our unique specifications and high-efficiency, Class-D amplifiers engineered to produce the mid-tone... for their speakers with an actual reading taken at a distance of 1 meter in laboratory or "near perfect" ambient conditions. A 600-watt PSAIR22 system produces an SPL of 138 dB @ 1... you can expect for your range will vary every time you use the speakers due to the noise of engines, traffic, crowds, weapons, etc. both near the speakers and near the audience...

of innovation in light weight, high-power, high-intelligibility speech projection for air, land and sea. Our engineers pioneered the first lightweight 100-watt speaker driver back...