BenQ MX825STH 3,500 lumens XGA short-throw projector for business and classrooms
- 1,024 × 768 Resolution · pixels 4:3
- 20,000:1 Contrast
- 3,500 ANSI lumens, 33/29 dB(A) Light & noise
- ST (short throw), TR 0.6:1 Lens
- 1D keystone Setup
- LAN control Connections
- MHL support Features
- PointWrite compatibility Features
Matching accessories
BenQ MX825STH is always included 597,90 €
Together
Tax included
The items have different delivery times and will arrive in several shipments.
Questions about the product?
Whether it's a conference room, school or home cinema – Florian Langkamp, our Projectors and tenders specialist, will advise you personally and prepare an individual quote for you.
Conference room, school or home cinema: we give you personal advice and put together a tailored quote.
Florian LangkampProjectors and tendersspecialist
Description

BenQ MX825STH
- 0.61:1Throw ratio
- 30–120 cmThrow distance
- 0.0 %Vertical lens shift
- 3,500ANSI lumens
Overview
The BenQ MX825STH was developed specifically for use in educational institutions and small conference rooms. Thanks to its short-throw lens, it produces large projections from a minimal distance, effectively preventing distracting shadows cast by the presenter. With a light output of 3,500 ANSI lumens, the device delivers clearly visible images for interactive learning and presenting even in rooms with ambient light.
Benefits and special features
- Short-throw lens with a throw ratio of 0.6:1 for shadow-free presentations directly in front of the screen.
- SmartEco technology optimises lamp performance and extends lamp life to up to 15,000 hours.
- Interactive expansion option with optional PointWrite and FingerTouch modules for collaborative work.
- LAN control allows central management and control via the local network (RJ45).
- MHL connectivity allows content from compatible mobile devices to be mirrored directly via HDMI.
- An integrated 10-watt speaker provides clear audio support for multimedia content in classrooms.
- Vertical keystone correction of +/- 30 degrees precisely compensates for image distortion when the projector is tilted.
Picture and sound quality
Based on DLP technology with a 0.55-inch DMD chip, the MX825STH delivers native XGA resolution and a high contrast ratio of 20,000:1. This ensures sharp text and clear definition in graphics. With 3,500 ANSI lumens, the system is designed for use in normally lit training rooms.
The audio solution consists of an integrated 10-watt speaker that is sufficiently powerful for medium-sized classrooms. If required, an external sound system can be connected via the 3.5 mm jack output.
In terms of connections, two HDMI inputs (one with MHL), two VGA inputs as well as S-Video and composite are available. The USB interfaces (Type A and Mini B) support powering accessories as well as the interactive PointWrite functions.
Mounting and installation
The projector supports classic table placement as well as ceiling mounting. A projection offset of 115% makes it easier to align the image flush with the top edge of the screen. For physical security in publicly accessible rooms, the housing has a Kensington lock slot and a security bar.
In the box: remote control, power cable, warranty card and quick start guide. The full manual is available as a digital e-edition.
Wall distance planning note: add 23.9 cm plus approx. 7–12 cm for plug/cable exits.
According to the manufacturer, this projector supports image sizes from 60 inches (152 cm) to 120 inches (305 cm).
| Screen size | Image width (approx.) | Throw distance |
|---|---|---|
| 80 inches | 163 cm | 0.98 m |
| 100 inches | 203 cm | 1.23 m |
| 120 inches | 244 cm | 1.48 m |
The calculated throw distances are based on the manufacturer's throw ratio and are intended as guide values. As measuring points (e.g. from the centre of the lens vs. the front of the housing) often vary between data sheets, calculations accurate to the centimetre cannot always be guaranteed.
Running and follow-up costs
Power consumption is 260 watts in standard operation and drops to less than 0.5 watts in standby. SmartEco technology helps minimise operating costs by dynamically adjusting lamp brightness.
| Operating mode | Service life | 2 hrs/day | 8 hrs/day |
|---|---|---|---|
| Standard mode | 6,000 hours | 8.0 years | 2.0 years |
| ECO mode | 10,000 hours | 13.5 years | 3.5 years |
Conclusion
The BenQ MX825STH is a reliable solution for the education sector, impressing with its short-throw lens and high brightness. The combination of low maintenance thanks to SmartEco mode and optional interactivity makes it a future-proof tool for modern teaching concepts. It offers excellent value for money for schools that value simple installation and central control.
From a single device to a complete system: we plan your turnkey projector solution including suitable accessories and integration. Request an individual package offer from the specialists at Beamer-Discount now!
Technical data
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General
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Condition
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Manufacturer
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Brand
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Model name
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Manufacturer part number
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EAN
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Product type
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Product series
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ApplicationEducation projector, Short-throw projector
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FeaturesIntegrated speaker
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Image
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Projector type
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Resolution
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Aspect ratio
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ANSI lumens
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Contrast ratio
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Light source
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Light source
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Lamp life
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Lamp life (Eco)
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Projection and lens
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Projection distanceShort throw
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Throw ratio0.61 : 1
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Throw distance0.3 to 1.2 m
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Lens included in deliveryYes
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Lens shift vertical0 %
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Lens shift horizontal0 %
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Keystone correction horizontal
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Keystone correction vertical
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Connections and wireless
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Inputs1x Composite-Video, 1x Ethernet, 1x S-Video, 1x USB-A, 2x 3.5 mm jack, 2x HDMI, 2x VGA
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Outputs1x 3.5 mm jack
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Wireless technologyn/a
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Energy and noise
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Operating noise
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Operating noise (Eco)
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Power consumption in operation
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Dimensions and weight
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Dimensions (W × H × D)29.6 × 12 × 23.9 cm
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Weight
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Colour
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Scope of delivery and warranty
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Scope of deliveryBatteries, Remote control
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Warranty
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Warranty type
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WEEE number
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Documents & downloads
Throw distance calculator – Optimal setup for BenQ MX825STH
Optimal setup for BenQ MX825STH
More settings
Aspect ratio
Borderlinebelow 500 lm/m²
Darkened roomfrom 500 lm/m²
Room with ambient lightfrom 1,000 lm/m²
Bright roomfrom 1,500 lm/m²
Borderline: at this image size the picture looks flat and low in contrast even in a darkened room – better to choose a smaller image.
Reviews
Product safety information
Manufacturer
BenQ
EU responsible person
BenQ Deutschland GmbHEssener Str. 5
46047 Oberhausen
Germany
Contact
E-Mail: info.de@benq.com









