



Optima Technology
Optoma 4K400STx | 4K UHD 4000lm Short-Throw Golf Sim Projector (16:9) (4:3) Aspect Ratio
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Optoma 4K400STX 4K UHD Short Throw Projector
General Description
The Optoma 4K400STX is a short-throw laser projector designed for golf simulation environments. It features a native 16:9 UHD resolution (3840x2160) and supports a 4:3 aspect ratio, making it compatible with square or rectangular simulator enclosures.
Equipped with a 0.5:1 short-throw lens, the unit projects large images from a short distance, allowing placement that keeps the player out of the light path to prevent shadows during a swing. For installation flexibility, the projector includes horizontal and vertical keystone correction along with four-corner image adjustment.
Technical Specifications
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Resolution: True 4K UHD ($3840 \times 2160$)
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Brightness: 4,000 ANSI Lumens (suitable for rooms with ambient light)
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Contrast Ratio: 1,000,000:1
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Throw Ratio: 0.5:1 (Fixed Zoom)
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Input Lag: 4.2ms (at 1080p 240Hz) / 16ms (at 4K 60Hz)
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Inputs: 2x HDMI 2.0 (HDCP 2.2), RS232, 12V Trigger
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Dimensions: 12.4" x 10.63" x 4.65"
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Weight: 8.7 lbs
Screen Size & Aspect Ratio Compatibility
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16:9 Widescreen Mode: Optimized for golf impact screens 12 feet wide or larger.
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4:3 Square Mode: Optimized for golf impact screens 12 feet wide or smaller. Fits standard GuardianBay™, Wedge™ Bay, and InstaBay™ enclosures.
Computer & System Requirements
Running simulation software in true 4K resolution requires a high-performance computer to prevent image downscaling, choppy frame rates, or input lag.
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Recommended Graphics Cards (GPU): NVIDIA RTX 3070, RTX 3080, or any RTX 40-Series card (4070, 4080, 4090).
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Performance Standard: These specifications ensure the software runs at 60+ FPS, allowing the projector to utilize its 4.2ms input lag for real-time ball flight tracking.
What’s Included in the Box
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Optoma 4K400STX Projector
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Remote Control (with batteries)
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AC Power Cord
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Quick Start User Manual
Premium Projector Accesories (Sold Separately)
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High-Speed HDMI Cables: Ultra-high bandwidth cables designed to deliver a flawless, lag-free 4K video signal from your computer to the projector.
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Optic Cage Ceiling Mount Shield Enclosure: A heavy-duty, vibration-isolated ballistic shell that completely encases and protects your hanging projector from stray shots.
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Optic Cage Projector Floor Mount: A low-profile floor ramp enclosure engineered to deflect low-launching ball strikes safely over the lens.
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SkyRail Projector Mount: A premium ceiling-mounted track system for smooth adjustments and clean alignment.
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No-Drilling Rail-Glide Projector Mount: A drill-free, modular rail tracking mount that lets you easily slide and lock your projector into position.
Custom Studio Technical Design
For assistance with room layout planning, throw distance math, or hardware specifications tailored to your space, contact the engineering team directly:
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Email: sales@turnkeyprostudios.com
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Phone: 402-577-0167
We respond within 24 hours!
Optoma 4K400STx 4K Short Throw Golf Sim Projector Further Information
Processing: 3-5 Business Days (Quality check & packaging).
Shipping: 3-5 Business Days via UPS/FedEx.
Total Delivery: Expect your order within 6-10 Business Days.
Free Standard Shipping
General Information
- Model: 4K400STX
- Display Type: DLP Projector
- Lamp Power: 240 Watts
Image Performance
- Native Resolution: 3840 x 2160 (4K UHD)
- Image Brightness: 4,000 ANSI Lumens
- Image Contrast Ratio: 1,000,000:1
- Image Aspect Ratio: 16:9 and 4:3 compatible
- Minimum Image Size: 36.43 Inches
- Maximum Image Size: 300.53 Inches
Optical & Lens Specs
- Minimum Throw Distance: 1.31 ft (15.75 In)
- Maximum Throw Distance:
10.83 ft (129.92 In) - Zoom Type: Fixed
- Optical Zoom: 1x
Connectivity & Audio
- Video Inputs: 2 x HDMI 2.0
- Audio Outputs: 1 x 3.5mm Audio Jack, 1 x S/PDIF (Digital Audio)
- Power Output: 1 x USB-A Power (1.5A)
- System Control: 1 x RS232, 1 x 12V Trigger
- Integrated Speakers: Yes
Power Requirements
- Power Supply Type: Internal Power Supply
- Voltage Required: 100V ~ 240V, 50 ~ 60Hz
- Operational Power Consumption: 220 Watts
- Standby Power Consumption: 0.5 Watts
Dimensions & Weight
- Width: 12.4 Inches
- Depth: 10.63 Inches
- Height: 4.65 Inches
- Weight: 8.7 lbs.
Compliance & Special Features
- Country of Origin (COO): Available upon inquiry
- TAA Compliance: Available upon inquiry
- UNSPSC Code: 45111609
1. What is Aspect Ratio, and why does it matter?
Aspect Ratio is the relationship between the width and height of your image.
- 4:3 Ratio: Produces a more "square" image. Best for rooms with high ceilings but limited width. To find your width, multiply your screen height by 1.25.
- 16:9 Ratio: The standard "Widescreen" look (HDTV). Best for wider enclosures like the Guardian Bay™ Commercial size. To find your width, multiply height by 1.78.
- 16:10 Ratio: A professional compromise often used in high-end simulators. Multiply height by 1.60.
How far away from the screen should my projector be?
Each projector has a specific throw ratio, which is an expression of image width divided by distance from the screen. For example a projector with a 0.5 throw ratio can produce a 10ft wide image from 5 feet. For Golf simulation we recommend short throw projectors with a throw ratio of 0.5 to 0.7 as they place the projector close enough to the screen so that the golfer will not block the image.
Throw distance from the screen can be calculated for other projectors using online projector throw calculators for your projector model.
How can I protect my projector from golf balls, club strikes, or other hits?
The Projector Shield from Turnkey Pro Studio is designed to do just that! Optic Cage™ Projector Floor Enclosure Isolates and Protects Your Golf Simulator Projector from Getting Hit by Golf Balls or Clubs. Check it out here:
You can find it in Frameworks under Simulator Accesories menu.
Pro Tip: For the sharpest image, always match your PC software settings (GSPro, Uneekor, etc.) to your projector's native resolution.
Electronic Products: Warranty & Return Policy
At TurnKey Pro Studios, all electronic products; including Golf Launch Monitors, Projectors, and Computer Systems; are shipped factory-new, pre-tested, and in original factory packaging. To maintain our professional-tier pricing, we adhere to the following strict policy:
1. Zero-Return Policy for Electronics
We only accept returns for electronic items that are documented as damaged during shipping. There are no exceptions to this policy. Once an electronic item is accepted from the carrier, the sale is final.
2. Shipping Damage & The 24-Hour Rule
Every shipment is fully insured for your protection. We will facilitate a return or replacement only for items damaged in transit, provided the following conditions are met:
- Photographic Evidence: You must provide clear photos of the damaged external packaging and the damaged product.
- 24-Hour Window: Damage must be reported to TurnKey Pro Studios within 24 hours of the delivery date. * Refusal of Delivery: We strongly encourage you to reject any delivery that shows obvious external evidence of damage (torn, crushed, or badly dented boxes).
3. Manufacturer Warranty Support
All electronics are fully covered by their respective manufacturer’s warranties (e.g., Optoma, BenQ, Uneekor). In the rare event a hardware problem arises after you have accepted delivery, TurnKey Pro Studios will assist you in receiving warranty service directly from the original manufacturer.
4. Non-Electronic Items (Enclosures & Mats)
For non-electronic hardware (Guardian™ Enclosures, Impact Screens, Mats):
- Unopened Items: May be returned within 15 days, subject to a 25% Restocking Fee.
- Shipping Costs: Original shipping and return shipping costs are the responsibility of the customer and are non-refundable.
Office Phone number: 1-402-577-0167
Email: sales@turnkeyprostudios.com




