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Vivitek D791ST
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Vivitek D791ST Projector

2500:1 XGA (1024x768) 27dB 3,000 ANSI Lumens Feb 2013
Contrast Ratio Native Projector Resolution Noise Level Projector Brightness Release Date
The Vivitek D791ST is the ultimate education projector with the world record shortest throw-ratio of 0.24:1 (for a 4:3 aspect ratio projector), enabling perfect presentation for the presenter... More
$76.61 Electricity cost over 5 years. Calculate
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4 Reasons For

Vivitek Has Good Reviews for Its Projectors

We checked the reviews from owners and experts of hundreds of multimedia projectors to determine an average rating for each projector manufacturer. On average Vivitek projectors have good ratings from users and experts.

Has a Built-In Speaker

Like most of the other 2500:1 contrast ratio data projectors that are a comparable age to the D791ST, the Vivitek D791ST has a built-in speaker.

We compared this data projector to all the other projectors with a built-in speaker and we think the Vivitek D795WT which has better reviews is also worth considering.

Alternative multimedia projectors which also have a built-in speaker that you might want to consider include the Sony VPL-SX536.

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Fairly Long Lamp Service Life

The lamp service lives of data projectors that came out around the same time as the D791ST range from 1,500h to 30,000h, and the average lamp service life is 4,000h. At 5,000 hours, the Vivitek D791ST has a fairly long lamp service life compared to most of the other 2500:1 contrast ratio data projectors that were released around the same time as the D791ST.

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Very Quiet Noise Level

The Vivitek D791ST has one of the quieter noise levels (only 27 decibels) amongst multimedia projectors of this age. The average noise level of 2500:1 contrast ratio data projectors that were launched more than two years ago is 33dB.

It may also be worth considering one of the other 27dB noise level projectors currently available including the Vivitek D795WT which has better reviews.

Projectors with a louder noise level that might be worth considering include the Sony VPL-SX536 (28dB).

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4 Reasons Against

Does Not Support Full HD Projection

The Vivitek D791ST does not support Full HD projection. Most of the other 2500:1 contrast ratio data projectors that have been available for around the same time as the D791ST also do not support Full HD projection.

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Does Not Support 3D Image Projection

Like most of the other similar spec projectors that have been around for more than two years, the Vivitek D791ST does not support 3D image projection.

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Does Not Support WiFi Connectivity

The Vivitek D791ST does not support WiFi connectivity, although it is worth noting that most of the other projectors of this age and type also do not support WiFi connectivity.

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Only Fixed Zoom Ratio

This multimedia projector supports a Fixed zoom ratio, which is typical of many 2500:1 contrast ratio data projectors that have been around for more than two years.

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3 Other reasons to consider the Vivitek D791ST

Released Over Three Years Ago

It was over three years ago when this data projector was released.

Average Projector Brightness

The Vivitek D791ST has a fairly typical projector brightness (3,000 ANSI lumens) compared to most of the other similar spec data projectors that have been on the market for more than two years.

It may also be worth considering one of the other 3,000 ANSI lumens brightness projectors currently available including the Vivitek D795WT which has better reviews.

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XGA (1024x768) Native Projector Resolution

This projector has a native projector resolution of XGA (1024x768), which is the most frequently found native projector resolution on 2500:1 contrast ratio data projectors that have been around for more than two years.

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Specification

Projector
Contrast Ratio
Native Projector Resolution
Projector Brightness
Zoom Ratio
Supported Aspect Ratio
Compatible Screen Size
Native Aspect Ratio
Projection Technology
Lamps
Service Life of Lamp in Economic Mode
Lamp Power
Lamp Service Life
Video
Full HD Projection
Analog Signal Format System
Ports & Interfaces
RS-232 Port
S-Video Input
Component Video in Port
HDMI Version
Audio in Port
Composite Video in Port
Ethernet LAN (RJ-45) Port
HDMI Port
VGA (D-Sub) Port
Networking
Performance
Noise Level
Horizontal Scan Range
Vertical Scan Range
Multimedia
RMS Rated Power
Built-In Speaker
Design
Form Factor
Colour
Product Type
Power
Power Source
Power Consumption On Standby
Typical Power Consumption
Input Frequency
Input Voltage
AC Adapter Frequency
AC Adapter Input Voltage
AC Input Frequency
AC Input Voltage
Weight & Dimensions
Weight
Height
Depth
Width
Packaging Content
Cable Included

Brochures and Manuals

Running Cost

Hours of Use Per Day: hours
Show running costs over: years
Electricity cost when switched on $72.13
Electricity cost when on standby $5.72
@ $0.107873376 per kwh - Edit electricity price and usage
kwh per hour
kwh per hour left on standby
Electricity price $per kilowatt hour
Annual electricity price inflation %
Water cost when switched on
@ $0.00153981568 per litre - Edit water usage and price
litres per hour
Water price $per litre
Annual water price inflation %
Submit Energy Consumption Figures
Total running cost over 5 years $77.85
Running costs for this projector have been estimated based on other similar projectors. If you know how much electricity and water the Vivitek D791STuses then please let us know by entering those figures in the boxes above.
0.5T
Running this projector over 5 years will generate 0.5 tonnes of carbon dioxide (CO2).
13
To offset that much CO2 you would need to plant 13 tree seedlings and grow them for 10 years.

+- Manufacturer's Description

Product Identifiers

Manufacturer Part Numbers d791st, acer d791, acer d791s, acer d791st, vivitek d791, vivitek d791s, vivitek d791st
Barcodes 00814964335333
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