— Projector Throw · Premium home cinema
Epson QB1000 throw distance & placement
Problem. A premium home cinema build wants a 120-inch 16:9 image, and the real question is how much room-length flexibility the Epson QB1000's zoom lens actually buys before the projector position is locked in. Placement decisions made before the throw distance is understood often end up either too close for a clean image or box the projector into a spot that conflicts with seating or joinery.
Answer. For a 120-inch 16:9 screen (2.66 m wide), the Epson QB1000's 1.35-2.84:1 zoom range works out to a throw distance of roughly 3.59-7.55 m. That is a 2.1x zoom spread, so the room can place the projector anywhere across nearly 4 m of depth and still land a correctly sized image without moving the screen.
02 / In depth
How this preset reads — the engineering view.
The QB1000 uses a zoom lens, not a fixed or ultra-short-throw optic, so the throw ratio is expressed as a range rather than a single number. Across 1.35-2.84:1, a 120-inch screen maps to a throw distance of roughly 3.59-7.55 m — meaning the same image size is achievable from a shelf near the back wall or a mid-room ceiling mount, whichever the room's furniture and joinery allow.
At 3300 lumens with a laser light source, the QB1000 is built for a room with real light discipline: blackout curtains or a dedicated cinema space rather than a living room with daytime windows. Native 1920x1080 resolution keeps the panel matched to the projector's actual pixel grid, which matters more for text and UI sharpness than for typical film content. This combination suits a treated home cinema room built around a 120-inch (or similarly sized) screen, not a multi-purpose lounge with uncontrolled ambient light.
From this preset, drag the screen-size slider to see the throw distance move in step — larger screens push the minimum and maximum throw further out, smaller screens pull them in. The zoom range and any lens-shift the installer sets are what create the placement latitude shown here; use that latitude to check the projector position against your actual room depth before finalising a mount point.
The calculator only resolves throw distance and screen-size geometry. It does not decide screen gain or material, ambient-light rejection performance, mount type or drop length, the exact lens variant if the body ever ships in interchangeable-lens configurations, or anything about the audio system feeding the room. Those remain separate specification decisions for the room design.
What this preset deliberately does not solve
- Throw figures assume the full native zoom range is usable; lens shift limits and keystone correction are not modelled here.
- 3300 lumens is a manufacturer-rated figure and will read lower on-screen depending on screen gain and ambient light.
- This preset assumes a 120-inch 16:9 image; other screen sizes shift both ends of the throw-distance range shown.
How this preset differs from its siblings
Other premium home cinema projectors in this category use different throw-ratio bands and light engines, so the same 120-inch target can demand a noticeably different room depth or brightness budget. This page exists because the QB1000's specific 1.35-2.84:1 zoom and 3300-lumen laser engine produce a distinct 3.59-7.55 m placement window that a reader searching for this exact model needs calculated against their own room, not approximated from a generic premium-tier figure.
03 / Hydrated calculator
Try the configuration — live.
The calculator below is preloaded with this preset’s state. Adjust any input — your URL stays shareable.
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Presets are a typology starting point. The brief wizard captures the room geometry, programme and constraints we need to translate this configuration into a real design.