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Comparison Optoma X343e vs Optoma X342e

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Optoma X343e
Optoma X342e
Optoma X343eOptoma X342e
Outdated ProductOutdated Product
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Main functionuniversaluniversal
Lamp and image
Service life6000 h6000 h
Service life (energy-saving)10000 h10000 h
Lamp power203 W203 W
Brightness3800 lm3700 lm
Dynamic contrast22 000:122 000:1
Horizontal frequency15 – 91 kHz15 – 91 kHz
Frame rate
50 – 85 Hz /120 Hz for 3D/
50 – 120 Hz
Projection system
TechnologyDLPDLP
Real resolution1280x768 px1024x768 px
Image format support4:3, 16:94:3, 16:9
Projecting
Rear projection
Throw distance, min1 m1 m
Throw distance, max12 m12 m
Image size28 – 304.5 "28 – 304.5 "
Throw ratio1.94:1 – 2.16:11.94:1 – 2.16:1
Optical zoom1.1 x1.1 x
Zoom and focusmanualmanual
Keystone correction (vert), ±40 °40 °
Features
Features
3D support
3D support
Hardware
USB 2.011
Number of speakers11
Sound power10 W10 W
Video connectors
VGA /1 input, 1 output/
composite
VGA /1 input, 1 output/
composite
HDMI inputs11
HDMI versionv 1.4v 1.4
Audio connectors
3.5 mm input (mini-Jack)
3.5 mm output (mini-Jack)
3.5 mm input (mini-Jack)
3.5 mm output (mini-Jack)
Service connectors
COM port (RS-232)
COM port (RS-232)
General
Noise level (nominal)29 dB29 dB
Noise level (energy-saving / quiet)27 dB27 dB
Power sourcemainsmains
Power consumption
225 W /187W in economy mode/
225 W /187W in economy mode/
Size (HxWxD)108x316x244 mm108x316x244 mm
Weight3 kg3 kg
Color
Added to E-Catalogdecember 2018november 2018

Brightness

The brightness of the image produced by the projector at maximum backlight brightness. Usually, the average brightness of the screen, derived from a special formula, is indicated. The higher it is, the less the image depends on ambient light: a bright projector can provide a clearly visible image even in daylight, but a dim one will require dimming. On the other hand, increasing brightness reduces contrast and accuracy of colour reproduction.

Accordingly, when choosing this parameter, you need to consider the conditions in which you plan to use the projector. So, for office or school/university use, a brightness of at least 3000 lm is desirable — this allows you to get normal visibility without obscuring the room. In turn, among the top models a very low brightness can be found, because. such projectors are usually installed in rooms specially designed for them with good darkness level. And in ultra-compact devices it is impossible to achieve high brightness for technical reasons.

Detailed recommendations on the optimal brightness for certain conditions can be found in special sources. Here we note that anyway, it is worth choosing according to this indicator with some margin. As mentioned above, as brightness increases, contrast and colour quality decrease, and you may need to use the projector at a reduced brightness to achieve the desired picture quality.

Frame rate

Frame rate, simply put, is the frame rate supported by the projector.

For normal playback, it is highly desirable that the frame rate of the projector match the original frame rate of the video signal. However, most modern models do not support a specific frame rate, but a whole range of frequencies, and quite an extensive one at that.

Note that for viewing most video materials, the range from 24 to 60 fps is quite enough. The exception is 3D content, which may require double the frame rate, up to 120Hz (see " 3D Support " for details).

Real resolution

The native resolution of the image produced by the projector matrix.

The minimum for modern projectors is actually the VGA standard, which assumes a resolution of 800x600 or close to it. The most limited of modern high-definition standards is HD (720); the classic size of such a frame is 1280x720, but projectors also have other options (up to 1920x720). A more advanced HD format is Full HD (1080), which also has several variations (the most popular is 1920x1080). And among high-end projectors there are models of Quad HD, Ultra HD (4K) and even Ultra HD (8K) standards.

In general, the higher the resolution, the clearer and more detailed image the projector can produce. On the other hand, this indicator directly affects the cost, and all the benefits of high resolution can only be appreciated if the reproduced content also corresponds to it. Note that modern projectors can work with higher resolutions than the “native” ones – for more details, see “Maximum video resolution”.
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