BenQ AK900ST: 6000-Lumen 4K AI Short-Throw Golf Simulator Projector
By BenQ
The Most Advanced Projector In The Sim Bay.
The AK900ST sits at the top of BenQ’s golf lineup. It pairs 6,000 ANSI lumens and true 4K UHD with BenQ AI Sim Sense™, a built-in AI processing unit that reads the course on screen, the room light, and the impact screen itself, then tunes color, contrast, and clarity in real time. Add full optical lens shift, a motorized zoom, and camera-driven Auto Screen Fit 2.0 with curved-screen support, and the result is a projector that installs cleanly in almost any bay and looks like the real course once it is dialed in.
Every Upgrade A Serious Bay Asks For.
AI Sim Sense™ Processing
A built-in APU continuously reads the on-screen course, ambient room light, and impact screen, then fine-tunes color vibrancy, contrast, resolution, and clarity. AI Super Resolution sharpens launch-monitor content down to fairway mowing patterns and green grain.
6,000 Lumens + Golf Mode 2.0
The brightest output in the BenQ golf family, paired with 97% Rec. 709 coverage and a real-time Golf Mode 2.0 that reproduces natural fairway greens, bunker sand, and sky tones even with the lights on.
Auto Screen Fit 2.0
The integrated camera detects impact-screen shape, size, and curve, then aligns the image with one press. Smart warping adds control points after the initial fit, making curved-screen calibration faster and more intuitive.
Full Optical Lens Shift
±60% vertical and ±23% horizontal lens shift let the image move without digital keystone, so full 4K sharpness holds whether the projector mounts high, low, or off-center.
Sealed IP5X Laser Engine
A dust-proof, laser-sealed optical engine rated for 24/7 use. No filters to clean, no bulbs to replace, and up to 20,000 hours of consistent brightness in Normal mode.
Scene Memory + Picture-in-Picture
Save up to five complete display profiles covering picture mode, zoom, focus, geometry, audio, and input. Switch from golf to movies or gaming with one click, or run a YouTube lesson alongside the sim with dual-source PiP.
Who Is It Best For?
Premium home simulator rooms, SimTheater builds, and commercial bays that want the brightest 4K image BenQ makes, the most flexible install geometry, and AI-driven picture tuning — without stepping up to interchangeable-lens installation projectors.
Flexible Mounting, One-Press Alignment.
Short Throw + Lens Shift Geometry
The AK900ST is built for bays where the projector has to stay behind the golfer, out of the swing path, and still fill a large impact screen without shadows.
- 0.81–0.89:1 short-throw ratio for shadow-free mounting behind the hitting area
- 1.1× motorized zoom adjusts image size from the remote without moving the mount
- ±60% vertical / ±23% horizontal optical lens shift for high, low, or off-center mounts
- Image sizes up to 300″ diagonal
- Screen Fill presets for 16:9, 16:10, 3:2, 4:3, 5:4, and 1:1
Auto Screen Fit 2.0 & Smart Setup
Camera-driven automation handles the alignment work that used to take ladder trips and GPU menu digging.
- Auto Screen Fit 2.0 detects flat or curved impact screens and fits the image with one press
- Motorized Auto Focus for sharp 4K clarity from the remote
- 3D Keystone with ±30° vertical, horizontal, and rotation
- Corner Fit for corner-by-corner adjustment in real-world rooms
- Confirm throw distance with the ESG fitment tool before mounting
A Golf Projector With A Brain.
The AK900ST is a 4K UHD short-throw DLP projector driven by a laser light source rated for 20,000 hours in Normal mode and 30,000 hours in Eco mode. That is years of daily simulator use without the brightness loss and replacement cost that come with lamp-based projectors.
With a 0.81–0.89:1 throw ratio, 1.1× motorized zoom, and full optical lens shift, the AK900ST mounts behind the hitting area and well above the swing plane, then moves the image into position without sacrificing resolution. It supports image sizes up to 300″ diagonal, which covers everything from a standard 10 ft bay to oversized commercial screens. For the exact lens-to-screen distance for your screen size and aspect ratio, run the numbers in the ESG projector fitment tool and throw calculator before mounting.
Ceiling mount notes: at roughly 22.5 lbs, the AK900ST is a heavier chassis than the AK700ST, so use a rated mount such as the BenQ Universal Ceiling Mount CM00G3 and secure it to framing. The lens shift and motorized zoom give meaningful slack on install position, and Auto Screen Fit 2.0 handles final alignment from the ground.
For PC-based simulators running GSPro, E6 Connect, TGC 2019, or Awesome Golf, the AK900ST connects through two HDMI 2.1 inputs plus a third HDMI input, accepting 4K at 60Hz or 1080p up to 240Hz. AI Super Resolution and AI-Enhanced Contrast lift standard launch-monitor output so sim software looks sharper and deeper than its native render.
The Full AK900ST Feature Set.
True 4K UHD Resolution
Native 3840 × 2160 with 8.3 million addressable pixels delivers crisp course textures, sharp ball-flight tracers, and clean UI overlays at simulator-sized image dimensions.
Short Throw With Motorized Zoom
0.81–0.89:1 throw ratio and 1.1× motorized zoom fine-tune image size from the remote, backed by ±60% vertical and ±23% horizontal lens shift.
6,000 ANSI Lumens
High output for garages, basements, and commercial bays with ambient light. The Ambient Light Enhancer uses the integrated camera to adjust color and saturation as room lighting changes.
HDR Golf + Cinema Modes
HDR Golf, HDR10, and HLG support with local and global contrast enhancement and Dynamic Black. Dedicated Golf, Bright Golf, Cinema, Game, and Sports modes cover every use of the room.
Low Input Lag Up To 240Hz
18.1 ms at 4K 60Hz and as low as 4.8 ms at 1080p 240Hz, with ALLM on the HDMI 2.1 inputs for automatic low-latency switching when gaming.
Pro-Level Connectivity
3× HDMI (two HDMI 2.1 with HDCP 2.3, one with eARC 7.1 audio return), 2× USB-A, RJ45 LAN, RS232, 3.5 mm audio out, and wireless projection with iOS mirroring, Google Cast, and Miracast.
AK900ST Key Specifications.
| Projection System | DLP |
|---|---|
| Resolution | 4K UHD (3840 × 2160) |
| Brightness | 6,000 ANSI lumens |
| Contrast Ratio | 3,000,000:1 (FOFO) |
| Color | 97% Rec. 709; 30-bit (1.07 billion colors) |
| Light Source | Laser, IP5X sealed engine (20,000 hrs Normal / 30,000 hrs Eco) |
| AI Processing | BenQ AI Sim Sense™ with built-in APU |
| Throw Ratio | 0.81–0.89:1 |
| Zoom | 1.1× motorized |
| Lens Shift | ±60% vertical / ±23% horizontal |
| Keystone | 3D (±30° vertical, ±30° horizontal, ±30° rotation) |
| Screen Size | Up to 300″ diagonal |
| Aspect Ratios | Native 16:9; Screen Fill for 16:10, 3:2, 4:3, 5:4, 1:1 |
| HDR Support | HDR Golf, HDR10, HLG |
| Input Lag | 18.1 ms (4K 60Hz), 9.7 ms (1080p 120Hz), 4.8 ms (1080p 240Hz) |
| Inputs | 2× HDMI 2.1 (HDCP 2.3, ALLM), 1× HDMI (HDCP 2.3), 2× USB-A, RJ45 LAN, RS232 |
| Audio | 10W chamber speaker + 10W chamber woofer, 3.5 mm out, eARC 7.1 |
| Noise Level | 34 dB (Normal) / 29 dB (Eco) |
| Power Consumption | 348.3W typical (110V) |
| Dimensions (W × H × D) | 20.5″ × 6.5″ × 13.8″ (521 × 166.3 × 350.6 mm) |
| Weight | ~22.5 lbs (10.2 kg) |
| Optional Accessories | CM00G3 ceiling mount, EZC-5201BS Wi-Fi/BT dongle |
| Dealer Status | Elite Sim Golf Authorized BenQ Dealer |
BenQ 4K Golf Simulator Projectors.
All three BenQ 4K laser projectors below are built for golf simulation. The right pick depends on bay size, ambient light, mounting flexibility, and budget.
- Resolution: 4K UHD (3840×2160)
- Brightness: 4,000 ANSI lumens
- Light Source: Laser (~20,000 hrs)
- Throw Ratio: 0.69–0.83:1
- Zoom: 1.2× motorized
- Lens Shift: None (digital keystone)
- Inputs: 2× HDMI 2.0 + USB-C DP Alt
- Golf Features: Auto Screen Fit, Quick Focus, Golf Mode
- Resolution: 4K UHD (3840×2160)
- Brightness: 6,000 ANSI lumens
- Light Source: Laser (20,000 hrs / 30,000 Eco)
- Throw Ratio: 0.81–0.89:1
- Zoom: 1.1× motorized
- Lens Shift: ±60% V / ±23% H
- Inputs: 2× HDMI 2.1 + 1× HDMI, up to 240Hz
- Golf Features: AI Sim Sense™, Auto Screen Fit 2.0, Golf Mode 2.0, 97% Rec. 709
- Resolution: 4K UHD (3840×2160)
- Brightness: 5,100 ANSI lumens
- Light Source: BlueCore laser (20,000 hrs / 30,000 Eco)
- Throw Ratio: 0.81–0.89:1
- Zoom: 1.1× optical
- Lens Shift: ±60% V / ±23% H (manual)
- Inputs: 2× HDMI + HDBaseT
- Golf Features: Golf Mode, 3D keystone, Corner Fit
The Centerpiece Of A Premium Sim Room.
Choose the BenQ AK900ST for the brightest, most advanced 4K golf projector BenQ builds — one that mounts safely behind the hitting area, shifts the image optically instead of digitally, fits flat or curved screens with one press, and moves from championship golf to movie night with a single button.
Pair It With An Elite Sim Golf Enclosure
The AK900ST’s 6,000 lumens and lens shift are built to fill a wide screen. Pair it with the Albatross 13 for a maximum-width bay or the Eagle 12 for a standard premium room, each with a 4K-ready impact screen.
Build A Complete SimKit
Build a custom bay around the AK900ST — launch monitor, enclosure, hitting mat, and projector — using the SimKit Bundle Builder.