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”.Short body
Tape recorders with a
shortened body.
In this case, shortened means a case that has a shallower depth than classic radio tape recorders equipped with CD drives. Due to this, such models are quite compact, which, in particular, simplifies installation and facilitates wiring. Of course, CD / DVD discs are not supported in principle by such radio tape recorders, but this is not a serious drawback — nowadays there are quite enough alternatives to such media. Also note that the shortened layout does not affect the mounting size (see above) — it can be 1 DIN or 2 DIN, and standard solutions are even larger.
CPU speed
The clock frequency of the processor (CPU) installed in the radio.
Many modern car radios (especially premium ones, with large displays and an abundance of additional functions, as well as regular models — see "Installation size") are actually multimedia computers. Therefore, their characteristics may indicate moments characteristic of computers — including the frequency of the processor. Theoretically, the higher this indicator — the more operations per second the CPU can perform and the higher its computing power. However, the actual speed of the processor depends on so many other factors that, compared to them, the clock speed is secondary; and it's not uncommon for a "slower" chip to be more powerful in fact. Do not forget that the capabilities of the entire system depend not only on the CPU, but also on the amount of RAM, the operating system used, and a number of other characteristics. And manufacturers usually select such processors that would allow radio tape recorders to cope with all the main tasks normally. In the light of all this, we can say that information about the frequency of the processor in fact has a purely reference and marketing (advertising) value.
