BenQ TH671ST: Ultimate Gaming Projector for Home Entertainment
By BenQ
Short Throw, Low Lag, Low Cost Of Entry.
The TH671ST started life as a gaming projector, and that heritage shows up where it matters in a sim bay — a short-throw lens that mounts behind the swing, and low input lag that keeps ball-flight rendering snappy. It skips golf-specific extras like Screen Fill and Golf Mode, but for a starter build or a tight budget, it is a proven, dependable way to get a simulator off the ground.
A Dependable Way To Start A Sim Build.
Native 1080P Clarity
Full HD 1920×1080 resolution keeps sim software UI, shot data, and ball-flight tracers sharp without upscaling artifacts.
Short-Throw Mounting
A 0.69–0.83:1 throw ratio lets the TH671ST mount behind and above the hitting area, out of the swing path.
Low Input Lag
As low as 16.7 ms at 1080p/60 in Fast/Game mode — built from the ground up as a gaming projector, so response feels immediate.
Simple, Proven Optics
1.2× optical zoom and vertical keystone correction cover most standard sim bay geometry without extra hardware.
Compact, Easy To Mount
At roughly 6 lbs, the TH671ST fits standard ceiling mounts and doesn’t demand a reinforced bracket.
Multi-Use Ready
Native 16:9 aspect ratio and a built-in speaker make it equally capable for movie nights and console gaming when the bay isn’t in golf mode.
Who Is It Best For?
Golfers building a first or budget-conscious simulator who want a real short-throw projector with responsive gaming performance, and don’t need golf-specific automation like Screen Fill or Auto Screen Fit.
Straightforward Geometry, No Surprises.
Short-Throw Geometry
Roughly a 100″ image from about 4.9–5 ft away puts the TH671ST comfortably behind a typical hitting area.
- 0.69–0.83:1 throw ratio for shadow-free mounting
- 1.2× optical zoom to fine-tune image size
- Native 16:9 aspect, selectable 4:3, Auto, Letterbox, Wide
- ~102.5% offset keeps the image low without extreme downward tilt
Installer Checklist
The TH671ST doesn’t include Auto Screen Fit, so plan for a bit more manual dial-in during install.
- Vertical keystone (±40°, 1D) for squaring the image on angled mounts
- Confirm mounting distance with the projector fitment tool before drilling
- 2× HDMI inputs (one MHL) plus USB-A power for a streaming stick
- Pair with a matte-white or gray impact screen for best contrast under a 240W lamp
A Gaming Projector Repurposed For Golf.
The TH671ST is a lamp-based short-throw projector originally built for home theater and console gaming, which is exactly why it performs well in a sim bay: low input lag and a short-throw lens are priorities for gaming projectors and for golf simulators alike.
Its 240W lamp is rated for roughly 4,000 hours in Normal mode, 10,000 hours in Eco/SmartEco, and up to 15,000 hours in LampSave — plan on a bulb replacement over the life of the projector, unlike the laser models in the lineup. For exact lens-to-screen distance based on your screen size and aspect ratio, run the numbers in the projector fitment tool and throw calculator before mounting.
Ceiling mount notes: the 1.2× optical zoom and vertical keystone give some flexibility on install position, but there is no Screen Fill or Auto Screen Fit automation, so plan for manual setup with the remote and OSD menu.
For PC-based simulators running GSPro, E6 Connect, TGC 2019, or Awesome Golf, the TH671ST connects via dual HDMI inputs and handles 1080p/60 without issue.
The Full TH671ST Feature Set.
1080P Full HD Resolution
Native 1920×1080 resolution for sharp sim UI, shot data overlays, and course detail.
Short-Throw Projection
0.69–0.83:1 throw ratio with 1.2× optical zoom mounts behind and above the hitting area.
3,000 ANSI Lumens
Solid brightness for garages and bonus rooms with typical indoor lighting.
92% Rec.709 Color
30-bit color depth (1.07 billion colors) for smooth gradients across skies and fairways.
16.7 ms Input Lag
Fast/Game mode response at 1080p/60 keeps sim feedback and console gaming feeling immediate.
Straightforward Connectivity
2× HDMI (one with MHL), USB-A power, audio in/out, and RS-232 for basic control integration.
TH671ST Key Specifications.
| Resolution | Full HD 1080P (1920 × 1080) |
|---|---|
| Brightness | 3,000 ANSI lumens |
| Contrast Ratio | 10,000:1 (FOFO) |
| Light Source | 240W lamp, up to ~15,000-hour life (LampSave) |
| Throw Ratio | 0.69–0.83:1 |
| Zoom | 1.2× optical |
| Keystone | Vertical ±40° (1D) |
| Aspect Ratios | Native 16:9; selectable 4:3, Auto, Letterbox, Wide |
| Color | ~92% Rec.709, 30-bit (1.07 billion colors) |
| Inputs | 2× HDMI (one MHL), USB-A, audio in/out, RS-232 |
| Weight | ~6.0 lbs |
| Dealer Status | Elite Sim Golf Authorized BenQ Dealer |
BenQ 1080P Golf Simulator Projectors.
The TH671ST sits at the entry point of BenQ’s 1080P lineup. Step up for golf-specific automation and a laser light source.
- Resolution: Full HD 1080p (1920×1080)
- Brightness: 3,000 ANSI lumens
- Light Source: Lamp (up to ~15,000 hr LampSave)
- Throw Ratio: 0.69–0.83:1
- Golf Features: None (no Screen Fill / Golf Mode)
- Input Lag: ~16.7 ms (Fast/Game mode)
- Resolution: Full HD 1080p (1920×1080)
- Brightness: 3,000 ANSI lumens
- Light Source: 4LED (20,000–30,000 hr)
- Throw Ratio: 0.69–0.83:1
- Golf Features: Screen Fill, Golf Mode
- Input Lag: ~16–17 ms (Game mode)
- Resolution: Full HD 1080p (1920×1080)
- Brightness: 4,000 ANSI lumens
- Light Source: Laser (~20,000 hr)
- Throw Ratio: 0.69–0.83:1
- Golf Features: Auto Screen Fit, Quick Focus, Golf Mode
- Input Lag: ~16 ms (Game mode)
The Right Starting Point For A First Sim Bay.
Choose the BenQ TH671ST for a proven, budget-friendly short-throw 1080P projector that mounts safely behind the hitting area, delivers low input lag for responsive sim play, and doubles easily as a movie and console gaming projector when the bay isn’t in golf mode.
Pair It With An Elite Sim Golf Enclosure
The TH671ST is a strong match for the Birdie 10 enclosure and a properly measured impact screen — a clean starter bay without a premium price tag.
Build A Complete SimKit
Configure a turnkey VTrack + enclosure + TH671ST simulator package using the SimKit Bundle Builder.