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- Short-Throw 0.69–0.83: Mount above or behind the hitter for a shadow-free image.
- 3,000 Lumens: Bright, clear picture in rooms with some ambient light.
- 1080p Full HD: Crisp course detail and readable shot data.
- Low Input Lag (~16.4 ms): Responsive swing-to-screen feedback.
- Easy Setup: 1.2× zoom and vertical keystone (±40°) for fast alignment.
BenQ TH671ST 1080p Short-Throw Golf Simulator Projector
The BenQ TH671ST is a 1080p short-throw projector that delivers $949 entry into the BenQ golf simulator lineup. With 3,000 ANSI lumens, a 0.69-0.83:1 throw ratio, and 16.67ms input lag, it fills a 100-inch screen from just 5 feet away.
This is the smart budget choice for golfers building their first simulator. You get a proven BenQ short-throw optic, Full HD resolution, and fast response time at a price that leaves room in your budget for a quality launch monitor, enclosure, and software. The TH671ST uses a lamp light source -- honest trade-off for the lowest price in the BenQ golf lineup.
Why Golfers Choose the TH671ST
Best Value in the Lineup
At $949, the TH671ST is the most affordable BenQ short-throw golf projector. Save hundreds versus LED and laser models and put the difference toward your launch monitor or enclosure.
Full HD 1080p
1920x1080 resolution delivers sharp course graphics, clean data overlays, and detailed shot feedback on screens up to 150 inches.
Short Throw
0.69-0.83:1 ratio fills a 100-inch screen from about 5 feet. Mount close to the screen and eliminate swing shadows.
16.67ms Input Lag
Game Mode delivers 16.67ms response at 1080p 60Hz. Ball tracking and shot feedback feel instantaneous -- no perceptible delay between swing and screen.
3,000 Lumens
Bright enough for dedicated sim rooms with controlled lighting. In a darkened space, the image is vivid and detailed.
3-Year Warranty
BenQ's standard 3-year limited warranty covers parts and labor. Buy from an authorized dealer and your coverage is guaranteed.
Throw Ratio and Room Placement
The TH671ST's 0.69-0.83:1 short-throw ratio projects a large image from a short distance, keeping the projector out of your swing path. Combined with 1.2x optical zoom and vertical keystone correction, you have flexibility to dial in placement without moving the mount.
Is the TH671ST Right for Your Build?
First-Time Sim Builder
You are building your first golf simulator and want to keep the total budget under control. The TH671ST delivers quality BenQ optics at the lowest price in the lineup, leaving more room for a launch monitor and enclosure.
Budget-Conscious Golfer
You want a reliable short-throw projector without spending $1,500-3,000 on a laser or LED model. The TH671ST gives you 90% of the experience at a fraction of the cost.
Compact Space
Your room is tight and you cannot fit a standard-throw projector 10-15 feet back. The TH671ST fills a 120-inch screen from about 6-7 feet.
Casual Use (2-3 Hours Daily)
At moderate use, the lamp lasts 10,000+ hours in ECO or SmartEco mode -- years of golf before you need a replacement. This is where the lamp trade-off makes the most sense.
Starter Build, Future Upgrade
Start with the TH671ST now, upgrade to an LED or laser model later. BenQ's short-throw projectors share mounting positions, making future upgrades straightforward.
Entertainment Beyond Golf
Your sim room doubles as a movie room or gaming space. 1080p resolution and 3,000 lumens handle movies, sports, and console gaming with ease.
The TH671ST uses a lamp light source instead of laser or LED. That is the trade-off that makes this price possible. Lamp life ranges from 4,000 hours (Normal) to 15,000 hours (LampSave), and replacements cost approximately $120-150. For moderate use, you are looking at years before your first replacement.
Key Specifications
BenQ TH671ST vs LED and Laser Upgrade Options
The TH671ST is the entry point. When you are ready to upgrade, the path is clear. Every projector below is available from Top Shelf Golf.
| Feature | TH671ST ($949) | AH30ST ($1,499) | AH500ST ($1,999) |
|---|---|---|---|
| Resolution | 1080p | 1080p | 1080p |
| Brightness | 3,000 lumens | 3,000 lumens | 4,000 lumens |
| Light Source | Lamp (4K-15K hrs) | LED (30K hrs) | Laser (20K hrs) |
| Throw Ratio | 0.69-0.83:1 | 0.49:1 UST | 0.5:1 |
| Input Lag | 16.67ms | 16.67ms | 16.67ms |
| Golf Mode | No | Yes | Yes |
| IP5X Dust Protection | No | Yes | Yes |
| Lamp Replacement | ~$120-150 | None needed | None needed |
| Best For | Budget sim builds | Compact spaces / LED longevity | Premium 1080p / zero maintenance |
Get the Most Out of Your TH671ST
Five tips to get a perfect image from day one.
Ceiling Mount It
Overhead mounting keeps the projector out of your swing path and cables clean. Use a compatible BenQ ceiling mount and take advantage of the 102.5% offset for clean placement above the hitting area.
Use SmartEco Mode
SmartEco mode automatically adjusts lamp power based on content brightness. It extends lamp life to 10,000 hours while maintaining image quality -- the best balance of longevity and performance.
Enable Game Mode
Game Mode reduces input lag to 16.67ms for real-time ball tracking. Access it through the picture settings menu -- essential for responsive simulator gameplay.
Connect via HDMI
Two HDMI 1.4a ports let you run your sim PC and a streaming device simultaneously. Use a high-speed HDMI cable for the best signal quality.
Control Ambient Light
At 3,000 lumens, the TH671ST performs best in a darkened room. Blackout curtains and dim overhead lighting make a noticeable difference in contrast and color accuracy.
Read the Manual
BenQ's documentation covers every adjustment in detail. Download the TH671ST manual (PDF) for the full setup walkthrough.
Start Your Sim Build Without Breaking the Bank
In stock. Ships free via FedEx. Financing available through Affirm.
Add to Cart - $949Your Purchase is in Good Hands
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From the moment you first contact us, we offer the very best advice and service to find the right product at the right price. We do not just sell boxes -- we help you build the sim room you have been planning.
Frequently Asked Questions
The TH671ST produces 3,000 ANSI lumens. This is bright enough for most dedicated golf simulator rooms with controlled lighting. For rooms with significant ambient light (large windows, overhead fluorescents), blackout curtains will improve contrast and color accuracy.
The TH671ST has a 0.69-0.83:1 short-throw ratio. For a 100-inch screen, the projector sits approximately 5.0 to 6.0 feet from the screen. For a 120-inch screen, approximately 6.0 to 7.2 feet. This short throw distance keeps the projector behind your swing path.
The TH671ST uses a traditional lamp light source -- not a laser or LED. Lamp life ranges from 4,000 hours in Normal mode up to 15,000 hours in LampSave mode. Replacement lamps (BenQ part 5J.JGT05.001) cost approximately $120-150 and are user-replaceable. This is the key trade-off that makes the TH671ST $550-1,050 less expensive than LED and laser alternatives. For moderate use (2-3 hours daily in SmartEco mode), expect years before your first replacement.
Yes. The TH671ST supports ceiling mounting and has a 102.5% projection offset. BenQ makes compatible ceiling mounts for their projector lineup. The projector uses vertical keystone correction (plus or minus 40 degrees) for alignment since it does not have lens shift. Plan your mount position carefully for the best results.
The TH671ST achieves 16.67ms input lag at 1080p 60Hz when Game Mode is enabled. This is fast enough for real-time ball tracking and smooth golf simulator gameplay. You will not notice any delay between your swing and the on-screen response.
No. The TH671ST does not have lens shift (horizontal or vertical). It uses digital keystone correction (vertical plus or minus 40 degrees) and 1.2x optical zoom for image alignment. This means mount position planning is more important than on projectors with lens shift.
The TH671ST ($949) uses a lamp with 3,000 lumens and 4,000-15,000 hour lamp life. The AH30ST ($1,499) uses an LED light source with 3,000 lumens and up to 30,000 hours -- no replacement needed. The AH30ST also adds Golf Mode, an ultra-short 0.49:1 throw ratio, and IP5X dust protection. The TH671ST costs $550 less and is the best entry point for budget sim builds.
Yes. The TH671ST delivers a sharp 1080p image with 3,000 lumens and 16.67ms input lag. Hundreds of golfers use this projector in their home simulators. It does not have the feature set of newer laser and LED models, but at $949 it is the most affordable way to get a quality BenQ short-throw projector into your sim bay.
BenQ provides a 3-year limited warranty covering parts and labor. Top Shelf Golf is an authorized BenQ dealer, so your warranty is fully backed. See our return policy for additional details.
Yes. The TH671ST connects via HDMI 1.4a and works with any simulator software including GSPro, E6 Connect, TGC 2019, Creative Golf 3D, Awesome Golf, and more. It is simply a display device -- compatible with any PC-based or console-based simulator setup.
We ship the TH671ST free via FedEx. Orders typically ship within 1-2 business days when in stock. The projector weighs just under 6 lbs and ships in BenQ's original packaging with all included accessories.
As an authorized BenQ dealer, every projector purchased from Top Shelf Golf comes with BenQ's 3-Year Limited Manufacturer's Warranty covering the projector and laser light source under standard terms. If anything goes wrong, BenQ covers it directly.
Returns are accepted within 30 days of receiving your order on undamaged and unused products (15% restocking fee applies). Please inspect your package when it arrives and contact us within 24 hours if there is any shipping damage. For full details, see our Return Policy.
Shipping is free within the continental United States on most products over $150. If you find any BenQ projector cheaper on another authorized dealer website, we will beat their price.
Building a sim room? Browse our complete projector collection or call us at 1-888-871-6110 for a personalized recommendation based on your room size and budget.
