DIN size
The size of the car radio in width and height, which determines the possibility of installing it in a car. To successfully install the radio, it is necessary that the corresponding socket in the car is the same size as the radio itself, or larger.
The universal unit of measurement for installation dimensions is DIN: 1 DIN corresponds to a width of 178 mm and a height of 50 mm. In this case, devices of different standard sizes have the same width and differ only in height:
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1 DIN. The most common size of modern car radios (see dimensions above).
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2 DIN. This standard size corresponds to a radio height of 100 mm and a width of 178 mm. Typically, 2 DIN size devices have quite powerful devices with a large number of additional functions - for example, they are often equipped with large color screens, suitable even for watching videos.
A separate variety is the so-called.
standard radios. These are devices that were originally manufactured for a specific brand of car and, as a rule, are supplied immediately with them in one of the complete sets. Such radios have their own unique mounting dimensions, often not related to the DIN standard, as a result of which they cannot be installed in any car models other than tech for which they were originally intended. In addition, installation and dismantling of standard radios is usually much more diffi
...cult than that of universal ones. For additional information, see paragraph “Original radio for”.Line out
The number of line outputs (see above) provided in the design of the radio. It should be noted that usually these outputs use RCA connectors (“tulip”), and the analog format allows only one audio channel to be transmitted through one such. Therefore, to work with a stereo signal,
two RCA connectors are required, and just a pair of such jacks is considered to be one line output - a set designed for one set of stereo speakers. The main difference between this interface and the same RCA used to connect speakers (see above) is that the line output receives a signal from a preamplifier that is unsuitable for feeding to passive acoustics. Such a signal must be sent to active speakers or an external amplifier (whereas the speaker is connected to the output of a power amplifier designed for passive speakers).
Illumination colour selection
The ability
to choose the backlight colour for the control panel, and sometimes also for the radio display. The specific range of shades available can vary, whether it be a few colours or the entire
RGB palette; see "Illumination colour" for details. Anyway, this feature does not play a functional role, however, it allows you to customize the appearance of the device so that it is in harmony with the appearance of the dashboard and matches the user's mood.
Backlight
The colour of the backlight plays primarily an aesthetic role, allowing you to choose a radio for the design of the dashboard and user preferences. In addition, some colours have a practical meaning. So, the
red backlight is extremely popular nowadays also because it is almost perfect for the dark time of the day: this shade does not knock down "night vision" and has a stimulating effect on the nervous system. And
green, on the contrary, relieves excessive nervousness and promotes peace of mind. Other popular colours in modern times include
white,
blue,
orange,
yellow,
purple ; they do not have such pronounced effects, here the main selection criterion is “like or dislike”.
Also note that in many models several backlight colours are indicated at once. This means that the device has a backlight with adjustable colour selection. At the same time, there are models with a choice of a full range of RGB colours.
