The BenQ AK900ST is a 4K UHD short throw laser projector rated at 6,000 ANSI lumens. It is built for golf simulators and home entertainment bays, and it is the top model in BenQ's golf projector range, above the AK800ST and AK700ST.
Native resolution is 3840 x 2160 at a 16:9 aspect ratio. Golf Mode 2.0 is joined by Bright Golf and HDR Golf picture modes, and a dedicated AI video processor tunes each frame. It also offers HDR10 and HLG modes. An Ambient Light Enhancer uses the built-in camera to adjust color and saturation to the room's light.
Four-way lens shift, 3D keystone correction, Corner Fit adjustment and Smart Warping for curved screens help with awkward rooms. Auto Screen Fit 2.0 uses the camera to detect the shape and size of an impact screen when the lens is within 13.1 feet of the screen center, and auto focus keeps the image sharp. Golf Scene Memory saves up to five profiles, so switching between golf, a movie or a game takes one button.
- Resolution
- 4K UHD, 3840 x 2160 (8.3 million pixels), 16:9 native
- Brightness
- 6,000 ANSI lumens
- Light source
- Laser, 20,000 hours in Normal mode, 30,000 hours in ECO mode
- Contrast ratio
- 3,000,000:1
- Color
- 97% Rec. 709, 30-bit color
- HDR
- HDR10, HLG
- Picture modes
- Golf Mode 2.0, Bright Golf, HDR Golf
- Throw ratio
- 0.81 to 0.89
- Zoom
- 1.1x motorized
- Throw distance
- 150-inch image: 8.8 to 9.7 ft; 180-inch: 10.6 to 11.6 ft; 200-inch: 11.8 to 12.9 ft
- Lens shift
- Vertical ±60%, horizontal ±23%
- Keystone
- 3D keystone ±30 degrees, Corner Fit, Smart Warping
- Setup features
- Auto Screen Fit 2.0, auto focus, Golf Scene Memory (up to 5 profiles)
- Video ports
- 3 x HDMI (2 x HDMI 2.1 with 4K 60Hz and ALLM, one with eARC)
- Other ports
- 2 x USB-A, RJ45 LAN, RS232, 3.5 mm audio out
- Speakers
- 10W chamber speaker, 10W woofer
- Input lag
- 18.1 ms at 4K 60Hz, 4.8 ms at 1080p 240Hz
- Dust protection
- IP5X sealed engine
- Dimensions
- 20.5 x 13.8 x 6.5 in (W x D x H)
- Weight
- 22.5 lb
- Warranty
- 3-year parts and labor limited warranty from BenQ America