Altec Lansing DTS645-8AF is a high-powered, full-range loudspeaker system designed for permanent installation in architectural spaces. It features a vented bass horn type design with a 16-inch, high-efficiency Duplex® loudspeaker and a coaxially embedded 1.4-inch compression driver loaded with a 60° by 40° constant directivity horn.

This loudspeaker system is capable of delivering a maximum output of 133 dB SPL, with a frequency response ranging from 50 Hz to 18 kHz. Its high power handling capacity, low frequency extension, and excellent directivity control make it ideal for use in a variety of applications, including concert halls, houses of worship, and other large venues.