Optoma EH412 Bright Full HD DLP ProjectorExceptional brightness and lamp life Project incredibly bright 4,500 lumens, 1080p images with the Optoma EH412. Support for 4K HDR input sources, sRGB and REC. 709 color profiles with a 50,000: 1 contrast ratio ensures sharp and vivid images, ideal for classrooms, meeting and training rooms. Incredible 4,500 lumens and 50,000: 1 contrast ratio Flexible installations with 1. 3x zoom and RS232 4K UHD and 1080p HDR (HDMI 2. 0) input compatible Accurate

8K / 60Hz and 4K / 120Hz passthrough support

2 channel 8K AV amplifier with 205W per channel that fully supports 3D audio formats like Dolby Atmos®

The video processor can also scale up any existing video source up to 8K

Highly integrated

Combining it with QRD technology for full-spectrum treatment

5 Network Control On Consumption in W 3

Polk Audio Signature S50 owner's manual

12 inch loudspeaker with neodymium magnet

Static Noise: -105dB

Import loudspeaker cone

including deep bass

By mimicking how sound waves move through varied terrain