The catch
Epson Home Cinema 3800
The 20-foot example is beyond its 2.15 maximum throw.
Side by side
Home Cinema 3800 is the better pick if a manual lens works in your room and you would like a lighter, 15.2-pound body to install. The LS11000 is for 4K120 input, powered optics or a longer rear mount. As the laser model it weighs 12.8 pounds more, so an existing mount needs a load check as well as a throw calculation.
Before you buy
From 20 feet, a 120-inch 16:9 image calls for a ratio near 2.295. The 3800 ends at 2.15 and LS11000 reaches 2.84, so the 3800 would have to move closer or show a larger image.
Where this comes from
Image width = 120 × 16 / √337 = 104.589 in, and 240 / 104.589 = 2.295. Compare that with the ranges of 1.32–2.15 and 1.35–2.84.
The catch
The 20-foot example is beyond its 2.15 maximum throw.
The catch
The mount takes on 12.8 more pounds with its 28-pound body.


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Epson 3800 or LS11000? See which suits a permanent theater with a 20-foot rear mount, and how they differ on 4K120 gaming, weight and remote lens adjustment.
Home Cinema 3800 is the better pick if a manual lens works in your room and you would like a lighter, 15.2-pound body to install. The LS11000 is for 4K120 input, powered optics or a longer rear mount. As the laser model it weighs 12.8 pounds more, so an existing mount needs a load check as well as a throw calculation.
Which one fits
The 3800's 2.15 maximum falls short of the required 2.295 ratio.
Just the LS11000 documents that 4K input rate.
With LS11000's powered adjustments, no hands-on lens changes are needed.
Before mounting hardware is added, the 3800 weighs 12.8 pounds less.
Where the 3800 has a UHE lamp, LS11000 has a laser array.
In practice
From 20 feet, a 120-inch 16:9 image calls for a ratio near 2.295. The 3800 ends at 2.15 and LS11000 reaches 2.84, so the 3800 would have to move closer or show a larger image.
Image width = 120 × 16 / √337 = 104.589 in, and 240 / 104.589 = 2.295. Compare that with the ranges of 1.32–2.15 and 1.35–2.84.
Even if the new lens fits, the extra 12.8 pounds counts for a ceiling plate or wall shelf. Compare the mount's documented capacity with the complete installed assembly.
28.0 - 15.2 = 12.8 lb, and 12.8 / 15.2 × 100 = 84.2%. Only the projector bodies are counted. Brackets and cables are left out.
The LS11000 accepts 4K120, but buying it does not upgrade an older HDMI cable or receiver that only passes 4K60. Check the source-to-projector path as one system.
In the US signal table for LS11000, 3840 × 2160 at 120 Hz and HDMI 2.1 are listed. The 3800 specifies 4K at up to 60 Hz. Both resolution and refresh rate have to be met.
Plug in your numbers
This checks hard limits only. Personal preferences are left out of the math.
For a 120-inch 16:9 picture, the calculated lens range is about 11.50 to 18.74 ft. You entered 9.50 ft. Optical estimate only: rounded throw ratios do not replace the manual’s 16:9 placement table. Check optical zoom, combined lens-shift limits, body/cables and ventilation before mounting. Digital correction adds no optical range.
For a 120-inch 16:9 picture, the calculated lens range is about 11.77 to 24.75 ft. You entered 9.50 ft.
Measure distance from the lens to the screen. The math assumes a 16:9 picture and uses the verified throw range for each exact model.

Epson, V11H959020
For a forgiving traditional setup, this bright lamp-based 3LCD projector offers wide manual lens shift, active 3D and equal color and white output.

Epson, V11HA48020
For fixed theaters, this motorized 3LCD laser projector offers broad lens memory and 4K120 input, and it has no sequential-color rainbow mechanism.
Spec by spec
| Spec | Epson Home Cinema 3800 | Epson Home Cinema LS11000 | In practice |
|---|---|---|---|
| Light source | 250 W UHE lamp | Laser diode array | With the laser, routine projection-lamp replacement goes away. |
| 4K input | Up to 60 Hz | Up to 120 Hz | 4K120 also depends on a compatible source and cable, along with any receiver in the path. |
| Optical throw | 1.32 to 2.15:1 | 1.35 to 2.84:1 | The LS11000 reaches farther back, which helps rear-shelf installations. |
| Lens operation | Manual focus, zoom and shift | Powered focus, zoom and shift | You do not need to reach the body to adjust the LS11000. |
| Projector weight | 15.2 lb | 28.0 lb | Before swapping out a lighter projector, check the mount and shelf ratings again. |
| Maximum centered-axis shift | Vertical ±60%, horizontal ±24% | Vertical ±96.3%, horizontal ±47.1% | The maximums hold with the axes centered and not with both at their limits at once. |
Trade-offs
Change of plan
Go with Epson Home Cinema LS11000. Those signal and optical-range requirements are met by LS11000.
Go with Epson Home Cinema 3800. At 15.2 pounds, the 3800 suits that simpler plan.
Decision guide
Go for Home Cinema 3800 when a manual lens suits the room and installing a 15.2-pound body is simpler. Go for LS11000 when you need 4K120 input, powered optics or a longer rear mount. Because the laser model is 12.8 pounds heavier, check the load on a reused mount along with the throw calculation.
More weight can call for a different mount or shelf, even if the bolt pattern looks workable. Put the mount, cables and safe access into your upgrade plan. The LS11000's lens-distance advantage only helps if the room can support and ventilate its larger installed assembly.
When most of what you watch is 24 or 60 Hz material, the 120 Hz input ceiling may not give you much in practice. Someone who wants a console kept at 4K120 has a clearer case for the LS11000. Before you blame the projector for a 60 Hz limit, confirm the signal formats and receiver settings.
If the 3800 sits somewhere accessible and never moves, manual focus and shift are reasonable. Mount it high and the LS11000's remote adjustments become more valuable. Both offer real optical adjustment, so work within their supported lens ranges instead of leaning on digital keystone to make up for a badly placed mount.
By the numbers
What we found across the home projectors we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Epson Home Cinema 3800 |
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| Epson Home Cinema LS11000 |
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Ready to buy
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