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- True 4K UHD: 8.3 million pixels for razor-sharp detail
- 4,000 Lumens: Bright enough for rooms with ambient light
- Short Throw (0.5:1): 100" image from under 4 feet
- HDR10 / HLG: Wide color gamut for lifelike visuals
- Golf Sim Mode: Color optimized for simulator graphics
- Four Corner Correction: Pixel-perfect alignment from any angle
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Optoma 4K400STx True 4K UHD Short-Throw Golf Simulator Projector
The Optoma 4K400STx delivers true 4K UHD resolution at a price that undercuts every other 4K short-throw on the market. At $2,289, it outputs 4,000 ANSI lumens with a 0.5:1 throw ratio -- fills a 100-inch screen from just over 4 feet away with 8.3 million on-screen pixels.
True 4K (3840x2160). HDR10 and HLG. 4.0ms input lag at 1080p/240Hz -- one of the fastest in any projector. Four-corner keystone correction handles imperfect mounting. S/PDIF optical audio, 12V trigger, and dual HDMI 2.0 round out a feature set that punches well above its price.
Why Golfers Choose the 4K400STx
True 4K UHD
3840x2160 native resolution. 8.3 million on-screen pixels. Fairways, greens, and data overlays render in razor-sharp detail on screens up to 300 inches.
4,000 Lumens
Bright enough for rooms with ambient light. Even with the lights on, the 4K400STx delivers vivid, detailed images across your entire screen.
0.5:1 Short Throw
Fills a 100-inch screen from just over 4 feet. One of the tightest throw ratios in any 4K projector -- ideal for compact simulator bays.
4.0ms Input Lag
Ultra-low input lag at 1080p/240Hz. One of the fastest response times in any projector -- your sim software reacts instantly to every swing.
HDR10 + HLG
High dynamic range support delivers richer blacks, brighter whites, and more detail in shadows. 1,000,000:1 contrast ratio brings courses to life.
Four-Corner Correction
Plus/minus 40-degree keystone in both horizontal and vertical planes. Warp each corner individually for a perfectly square image from any angle.
Optoma 4K400STx Throw Distance and Placement
The 4K400STx's 0.5:1 fixed throw ratio projects a large 4K image from very close to the screen. With 116% vertical offset and extensive four-corner correction, you have significant flexibility in placement even in imperfect rooms.
Is the 4K400STx Right for Your Build?
4K on a Budget
You want true 4K UHD without spending $2,500+. The 4K400STx delivers native 3840x2160 resolution at one of the lowest price points in its class.
Competitive Gamer
4.0ms input lag is among the fastest in any projector. If you care about responsiveness in your sim software, the 4K400STx delivers.
Compact Sim Room
A 0.5:1 throw ratio fills a 100-inch 4K image from just over 4 feet. Most competing 4K projectors need 6+ feet for the same screen size.
Dual-Purpose Room
Your sim room doubles as a home theater. 4K resolution, HDR10/HLG, S/PDIF audio output, and a backlit remote make the 4K400STx a capable entertainment projector.
Premium Launch Monitor Owner
You invested $5,000+ in a Trackman, GC4, or Skytrak+ launch monitor. The 4K400STx ensures your display quality matches your data accuracy.
Accepts Lamp Trade-offs
You understand this is a lamp projector (not laser) and accept periodic bulb replacements in exchange for 4K resolution at a lower upfront cost.
Deep blacks. Vivid colors. 8.3 million pixels. HDR10 pushes every blade of grass, every fairway contour into sharp, lifelike detail.
Optoma 4K400STx Key Specifications
Lamp vs Laser: An Honest Comparison
The 4K400STx uses a traditional lamp -- not a laser. This is how Optoma delivers 4K at this price point. Here is what that means for you:
- Lamp life: 4,000 hours (Bright), 10,000 hours (Eco), 15,000 hours (Dynamic)
- At 4 hours daily in Eco mode: approximately 7 years before replacement
- Replacement cost: lamp replacements run $100-$200
- Trade-off: you save $500-$1,000 upfront vs laser 4K alternatives
If you prefer laser and do not need 4K, consider the GT2000HDR ($1,199) with 30,000-hour DuraCore laser at 1080p.
Optoma 4K400STx vs Other Golf Simulator Projectors
Every projector in this comparison is available from Top Shelf Golf. Your ideal choice depends on resolution, budget, and room size.
| Feature | 4K400STx ($2,289) | GT2000HDR ($1,199) | BenQ TK710STi ($2,199) | BenQ AK700ST ($2,899) |
|---|---|---|---|---|
| Resolution | 4K UHD | 1080p Full HD | 4K UHD | 4K UHD |
| Brightness | 4,000 lumens | 3,500 lumens | 3,600 lumens | 4,000 lumens |
| Light Source | Lamp (4K-15K hrs) | Laser (30K hrs) | Lamp (4K-15K hrs) | Laser (20K hrs) |
| Throw Ratio | 0.5:1 | 0.496:1 | 0.68-0.83:1 | 0.69-0.83:1 |
| Input Lag | 4.0ms | 8.6ms | 16ms | N/A |
| HDR Support | HDR10 / HLG | HDR10 / HLG | HDR10 / HLG | HDR10 / HLG |
| Dust Protection | No | IP6X | No | IP5X |
| Best For | Budget 4K, tight space | 1080p laser value | Affordable 4K lamp | Premium 4K laser |
Get the Most Out of Your 4K400STx
Five tips to get a perfect 4K image from day one.
Ceiling Mount It
The Optoma ceiling mount keeps the projector above the hitting area. Combined with four-corner correction, you can perfect the image from almost any ceiling position.
Use HDMI 2.0
Both HDMI 2.0 ports support 4K/60Hz with HDCP 2.2. Use a certified high-speed HDMI cable to ensure full 4K HDR signal passes through without issues.
Enable HDR
Turn on HDR10 in your source device settings. The 4K400STx's HDR processing delivers visibly richer contrast and color compared to SDR mode.
Use Four-Corner Correction
The 4K400STx offers +/-40 degree keystone correction in both planes. Warp each corner individually for a perfectly aligned image, even from off-center positions.
Pair with Quality Enclosure
4K resolution is only as good as your screen. A quality enclosure setup with the right screen material maximizes the detail the 4K400STx can deliver.
Read the Manual
Optoma's documentation covers every setting. Download the 4K400STx manual (PDF) for the full setup walkthrough.
True 4K. Short Throw. Under $2,300.
In stock. Ships free via FedEx. Financing available through Affirm.
Add to Cart - $2,289Learn More About Golf Simulator Projectors
Explore our in-depth guides to make the most informed decision for your golf simulator setup.
4K vs 1080p: Do You Really Need 4K for Your Simulator?
When 4K makes a visible difference, when 1080p is plenty, and how screen size factors into the decision.
BenQ vs Optoma: Which Projector Fits Your Simulator?
We compare throw ratios, brightness, price, and features side by side to help you pick the right projector brand.
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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 4K400STx outputs 4,000 ANSI lumens. This is bright enough for most simulator environments including rooms with moderate ambient light. Combined with true 4K UHD resolution, the image remains sharp and vivid even when total light control is not possible.
The 4K400STx has a fixed 0.5:1 throw ratio. For a 100-inch screen, the projector sits approximately 4.1 feet from the screen. For a 120-inch screen, approximately 4.9 feet. This short throw distance lets you mount the projector close to the screen and eliminate swing shadows.
The 4K400STx uses a traditional lamp light source (240W), not a laser. Lamp life is rated at 4,000 hours in Bright mode, 10,000 hours in Eco mode, and up to 15,000 hours in Dynamic mode. Replacement lamps are available when needed. This keeps the purchase price significantly lower than comparable laser 4K projectors.
The 4K400STx has an ultra-low input lag of just 4.0ms at 1080p/240Hz. This is one of the lowest input lag figures available in any projector, making it exceptionally responsive for golf simulation and gaming.
Yes. The 4K400STx supports both HDR10 and HLG (Hybrid Log Gamma). This delivers richer contrast, brighter highlights, and deeper blacks compared to standard dynamic range content. Combined with 4K resolution and 1,000,000:1 contrast ratio, the visual quality is exceptional.
Yes. The Optoma ceiling mount is compatible with the 4K400STx. You can also use four-corner keystone correction (+/-40 degrees) to perfectly align the image even with angled or off-center mounting.
Both are 4K short-throw projectors at similar price points. The 4K400STx ($2,289) has a tighter 0.5:1 throw ratio and 4,000 lumens with 4.0ms input lag. The BenQ TK710STi ($2,199) offers 3,600 lumens with a 0.68-0.83:1 throw ratio. Both use lamps and offer HDR support. The 4K400STx is better for very tight spaces; the TK710STi offers more throw flexibility with its zoom lens.
The 4K400STx includes 2x HDMI 2.0 (HDCP 2.2), audio 3.5mm out, S/PDIF optical audio, USB-A (5V/1.5A power), RS232 for control integration, and a 12V trigger for automated screen or light control. It is one of the most connectivity-rich projectors in its class.
Yes. The 4K400STx connects via HDMI 2.0 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.
The Optoma 4K400STx includes a 2-year limited manufacturer warranty covering parts and labor, with a 90-day warranty on the lamp. Top Shelf Golf is an authorized Optoma dealer, so your warranty is fully backed. See our return policy for additional details.
Yes, it has a built-in 10W speaker. It also includes S/PDIF optical audio output for connecting to an external sound system. For most simulator setups, an external sound system delivers a better experience, but the built-in speaker works for basic use and testing.
We ship the 4K400STx free via FedEx. Orders typically ship within 1-2 business days when in stock. The projector weighs approximately 10.3 lbs packaged and ships in Optoma's original packaging with all included accessories including a backlit remote control.
As an authorized Optoma dealer, every projector purchased from Top Shelf Golf comes with Optoma's manufacturer warranty. The 4K400STx is covered by a 3-Year Limited Warranty on projector parts and labor, plus a 90-Day lamp warranty. If anything goes wrong, Optoma 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 this 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.
