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Optoma EP1691

Optoma EP1691
alaAverage 4.5

10 reviews

Jul, 2018

alaTest has collected and analyzed 10 reviews of Optoma EP1691. The average rating for this product is 4.5/5, compared to an average rating of 4.2/5 for other Projectors for all reviews. People are impressed by the image quality. The size is also appreciated, whereas there are some critical reviews about the noise. There are some mixed reviews about the price.

usability, size, image quality


On average, users rate this product 90/100.

Review analysis

(Based on 10 reviews)

1 expert reviews

User Reviews  

Showing 6 review(s)

Expert Reviews User Reviews


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Showing 1 - 6 of 6 Show Reviews: in English | in other languages (4)

Consumer review (

Optoma EP1691 DLP Projector


Nice bright image, even when run on standard setting. Very easy to set up.

Lens focus adjustment is a bit coarse.

May, 2009

Consumer review (

Optoma EP1691 DLP Projector


Very light. Easy to use. Great quality image.

Mar, 2009

Consumer review (

Optoma EP1691 DLP Projector


Very happy with the picture quality and flexability, its easy to run external multimedia players through and watch movies from, although obviously you need an amp and speakers for the sound. Also good quality and easy to connect xbox 360 upto and have...

Can be noisy every so often the fan kicks in on it and makes a bit of a noise but only for a couple minutes at a time and not really that often, anyway i hardly notice because the volumes usually too high to hear it. It does help to have the lights...

Feb, 2009

Consumer review (

Optoma EP1691 DLP Projector


Easy to set up - widescreen matches my Sony laptop. Looks good on screen, much better than any I have previously borrowed

Jan, 2009

Consumer review (

Optoma EP1691 DLP Projector


does what it says

slight fan noise, only slight

Dec, 2008

Consumer review (

Optoma EP1691 DLP Projector


Size and ease of use

Small point no printed instructions. These I have now printed from disc.

Sep, 2008

Product Specifications

Energy Management

Power consumption (standby):5
Power consumption (typical):250


Bulb power:200
Service life of lamp:2000 / 3000
Service life of lamp (economic mode):3000

Lens System

Focal length range (f-f):0.839 - 0.965
Throw ratio:1.5 - 1.8:1


Number of built-in speakers:1
RMS rated power:1
Video compression format: No
Video formats supported:Not supported

Operational Conditions

Operating relative humidity (H-H):0 - 80 / 5 - 80
Operating relative humidity range:0 - 80 / 5 - 80
Operating temperature (T-T):5 - 40
Operating temperature range (T-T):5 - 40

Other Features

Aspect Ratio:4:3, 16:9, 16:10
Compatibility:WXGA+, WXGA, XGA, SVGA, VGA, Mac
Dimensions (WxDxH):8.66 x 7.01 x 2.8
Lens focal range:2.55 - 2.72
Power Requirements:100-240V, 50-60 Hz / 100-240V, 50-60Hz
Resolution:1400 x 900


Display scan frequency (horizontal):15 - 91.4
Horizontal scan range:15 - 91.4
Vertical scan range:43 - 87

Ports & interfaces

Component video (YPbPr/YCbCr) in:1
Composite video in:1
DVI port: Yes
Headphone outputs:1
S-Video in:1
S-Video inputs quantity:1
USB 2.0 ports quantity:1
VGA (D-Sub) ports quantity:1


Power consumption (standby):5
Power consumption (typical):250


Contrast ratio (typical):2500:1
Keystone correction, vertical:-30/30 / 30
Matrix size:0.65
Number of colors:16.78 million colors
Objective projection distance:1.2/12
Projection distance:1.2/12
Projection technology:DLP
Projector brightness:2500
Projector native resolution:WXGA (1280x768)
Screen size compatibility:0.79 - 9.43


Analog signal format system:NTSC, PAL, SECAM

Weight & Dimensions