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BenQ SP831

BenQ SP831
alaScore 83

6 reviews

Mar, 2018

alaTest has collected and analyzed 6 reviews of BenQ SP831. The average rating for this product is 4.4/5, compared to an average rating of 4.2/5 for other Projectors for all reviews. Reviewers are impressed by the usability and image quality, but there are some mixed opinions about the price.

size, image quality, usability

We analyzed user and expert ratings, product age and more factors. Compared to other Projectors the BenQ SP831 is awarded an overall alaScore™ of 83/100 = Very good quality.

Review analysis

(Based on 6 reviews)

Expert Reviews  

Review Ratings

  (67% of reviews)
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Expert Reviews User Reviews


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Showing 1 - 4 of 4 Show Reviews: in English | in other languages (2)

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BenQ - SP831


Digital projectors don't come cheap, but at nearly £1,300 + VAT you'll need deep pockets to afford the BenQ SP831. But then it is a highly specified and capable device, with facilities to handle not one ...

BenQ's SP831 stands out from other projectors in that it can handle dual video sources and display them side by side using split-screen and picture-in-picture technology. It's also a very bright, professional product, but if you only ever need to...

Mar, 2008

Expert review by (

Review: Benq SP831 split-screen projector


An impressive projector with a split personality

Dec, 2007

Expert review by : Projector Reviews (

Expert Review

Sep, 2007

Expert review by (

BenQ SP830 / SP831 Large Venue Widescreen projector


The BenQ SP830 and SP831 are both feature packed large venue widescreen projectors, with plenty of brightness, some of the best colours available and offering many great features. The SP831 has an awe inspiring 4000 ANSI lumen brightness level with the...

The unit also includes a fully featured remote with laser pointer. The SP831 comes with the required base mounting holes so can be ceiling mounted.

Product Specifications

These intelligent serial I/O adapters use less than 1% system load so servers won't slow down as you run more applications, attach more devices or service more users. The Avocent line of SST Multiport Adapters deliver the performance and speed you need at a very affordable price. Installation and set up take just a few minutes. Multiport universal serial adapters are designed for ultimate flexibility. These intelligent leading-edge universal adapters support a 3.3V or a 5V PCI bus, which offload virtually all serial traffic from your system CPU so servers won't slow down as I/O demand increases. Engineered for reliability, Avocent serial adapters include 15, 000 volt surge suppression on every pin of every port eliminating blown ports from transient electrical spikes. With unmatched speed, surge suppression and superior performance, these intelligent adapters provide cost-effective, reliable connections to serial devices under most popular operating systems. Serial adapters used in conjunction with port modules and connector panels offer flexible distance options. Avocent serial adapters offer a variety of choices for retail/POS, multiport and expandable connectivity.


Cable lock slot:Kensington
Colour of product:Black, Silver

Dimensions & Weight



Built-in Display: No

Display (Projector)

Class:Digital projector
Colour Support:Up to 1.07 billion colours
Display Resolution Abbreviation:WXGA
Image Brightness:4000ANSI lumens
Image Contrast Ratio:2000:1
Max Image Size:7.62m / 762cm
Max Resolution:1280 x 768
Max Screen Distance:10.34m
Min Image Size:0.64m / 64cm
Min Screen Distance:1m
Native Aspect Ratio:Widescreen
Recommended Use of Projector:Presentation and multimedia
Type:DLP Projector


Compatibility:PC/PC / Unix
Model:SP831/SST-4P/LP UNIV
Packaged Quantity:1
Product Line:Avocent Multiport/BenQ


Bulb power:280 / 300
Service life of lamp:3000
Service life of lamp (economic mode):4000

Lens System

Aperture range (F-F):2.4 - 2.58
Focal length range (f-f):22.3 - 26.1
Throw ratio:1.5 - 1.8:1


Microsoft Certification:Works with Windows Vista
Vista Certification:Works with Windows Vista


Built-in speaker(s): Yes
Number of built-in speakers:2
RMS rated power:4


Connectivity Technology:Wired
Data Link Protocol:RS-232
Data Transfer Rate:920Kbps
Ethernet LAN: Yes
Form Factor:Plug-in card
Interface (Bus) Type:PCI
Type:Serial adapter
Wi-Fi: No

Other features

Aspect Ratio:15:9
Audio input:3
Connectivity Technology:Wired
Dimensions (WxDxH):115 x 277 x 375 / 375 x 115 x 277 / 375 x 277 x 115
Power requirements:100 - 240 V ac, 50 - 60 Hz
Resolution:1600 x 1200
Weight (imperial):10

Packaging Content

Batteries included: Yes
Cables included:AC, VGA
Handheld remote control: Yes
Manual: Yes
Quick start guide: Yes


Horizontal scan range:24 - 82 / 24 - 88
Noise Level:34
Noise level (economic mode):32
Noise Reduction: Yes
On Screen Display (OSD): Yes
On Screen Display (OSD) languages:CHI (SIMPL), CHI (TR), CZE, DUT, ENG, ESP, FRE, GRE, ITA, JPN, KOR, POL, POR, RUS, SWE, THA, TUR
Preset modes:Cinema, Dynamic, Presentation, sRGB
Vertical scan range:48 - 85

Ports & interfaces

Audio (L,R) in:1 / 3
Audio (L,R) out:1
Component video (YPbPr/YCbCr) in:1
Composite Video In:1
DVI port: Yes
Ethernet LAN (RJ-45) ports:1
PC Audio in: Yes
RS-232 ports:1
S-Video inputs quantity:1
Serial interface type:RS-232
USB 2.0 ports quantity:1
USB connector type:Mini-USB B
VGA (D-Sub) ports quantity:1 / 2


AC adapter frequency:50/60
AC adapter input voltage:100 - 240
AC input frequency:50 - 60
AC input voltage:100 - 240
Power consumption (typical):450
Power Source:AC


Contrast ratio (typical):2000:1
Maximum analog resolution:640 x 480
Maximum digital resolution:1600 x 1200
Number of Colours:1.073 billion colours
Projection Technology:DLP
Projector brightness:4000
Projector native resolution:WXGA (1280x768)
Screen size compatibility:25"/300" / 508 - 7620
Zoom capability:Manual
Zoom ratio:1.16:1

Projector Lamp

Bulb life cycle:3000hour(s)


Card reader integrated: No

System Requirements

OS Required:Linux / Microsoft Windows 2000 / NT / Microsoft Windows XP / SCO OpenServer / SunSoft Solaris / UnixWare


Analog signal format system:NTSC, PAL, SECAM
Full HD: Yes
HD-Ready: Yes

Video Input

Analogue Video Format:NTSC / PAL / SECAM
Analogue video Signal:Component video / Composite video / RGB / S-Video
Digital Video Standard:Digital Visual Interface (DVI)

Weight & Dimensions

Height :37.5