The Sound Barrier SQUALL series extended-range passive loudspeakers are ideal for indoor and outdoor architectural design applications where high-quality sound is required. Its extended range allows a frequency response of 90Hz to 15kHz and sound pressure levels up to 115dB SPL. Features such as, low-saturation and low-loss 70/100V transformers with 8Ohm bypass, IP-65 certification for dust and splash resistance and fiberglass cabinet can withstand high temperatures, hits and drops making this loudspeaker ideal for the installation professional.