New serialization [Speaker next move] Get adjustment function ... Renewed main unit

Many drivers have already performed "speaker replacement" as the first step in upgrading the sound system. This special feature is presented to such people. Introducing the know-how to further bring out the performance of the replaced speaker one by one.

If the main unit is replaceable, replace it with a high-performance model ...

This time, I will explain about "main unit replacement". If the speaker has been replaced, then the replacement with a high-performance main unit will bring out the goodness of the attached speaker.

There are two main reasons for this. One is "because it can give the system advanced control functions", and the other is "because the potential as a source unit increases".

So, before explaining the contents of those merits in detail, I would like to explain what kind of person this strategy is suitable for. First of all, in carrying out this operation, it is of course a prerequisite that the main unit can be replaced. If it is difficult to remove the genuine main unit, or if the genuine main unit has functions other than audio, it is difficult to select this strategy in the first place. And even if the main unit you're using is still new, this strategy isn't for you.

Conversely, if the main unit is replaceable and you are not happy with the model you are currently using, this strategy will be even more effective.

For example, if the main unit in use is an AV-integrated navigation system, and if the map data has not been updated for a long time, it is ant to update the navigation system. It takes a lot of cost and effort to update the map, so if you replace it with the latest model, the sound will be better and the navigation will be easier to use.

In other parts, the difference from the latest model is remarkable after 5 years. For example, if your favorite device does not support Bluetooth, it will be much more convenient just to be able to use it. And the operation response and image quality are generally improved in the latest models. In addition, some models are equipped with highly specialized functions. Therefore, if the main unit in use is old, replacing it with the latest model will improve the comfort of the drive in various aspects. And the sound will be better.

If advanced control functions can be added to the system, it will be possible to improve the acoustic disadvantages in the passenger compartment!

Now, let's explain in detail the reason why the performance of the speaker can be further enhanced by executing "main unit replacement". First, I will explain from "the ability to give advanced control functions to the system".

To tell the truth, there are some acoustic disadvantages in the vehicle interior environment. So, while replacing the speakers clearly improves the quality of the sound you hear, it's also certain that there's probably some stretched white that makes the sound even better. So, if you can add advanced control functions to the system, you can improve them, and the way you hear will change drastically.

There are two main acoustic disadvantages. One is that the listening position is biased to the left or right. This is a big behind in trying to enjoy stereo playback. Stereo is to record music separately on the left and right channels and play it back on the left and right speakers so that the sound image can be felt three-dimensionally. Since there is no such thing, it is difficult to feel the sound image in three dimensions. However, if you replace it with a main unit that has advanced control functions, you can deal with it. You can create a pseudo-situation as if you were equidistant from all speakers.

Another disadvantage is that the frequency response tends to be disturbed. Since the interior of the car is small, you can hear a lot of sound reflected from the glass and panels. So, when sound is reflected, only the sound in a specific frequency band is amplified or attenuated. Furthermore, some sounds are absorbed by a sheet or the like. In this way, the frequency characteristics tend to be disturbed. However, by making full use of advanced control functions, it is possible to correct the disturbance of frequency characteristics.

If the quality of the upstream music signal improves, the quality of the sound heard from the speakers will also improve!

Next, let's explain "the potential as a source unit can be raised". Replacing it with a high-performance main unit will also improve the quality of the read music signal. Furthermore, since the capacity of the built-in power amplifier is enhanced, the condition when amplifying the signal is also improved. In this way, a higher resolution signal is sent to the speaker, and the performance of the replaced speaker is further enhanced.

In addition, the range of content that can be enjoyed often expands. For example, if you select a model equipped with an HDMI terminal, you can mirror your smartphone, so you can watch YouTube videos on the screen of the main unit and enjoy the audio through the car speaker. By the way, with Carrozzeria's "Cyber ​​Navi," you can enjoy YouTube via the browser installed in this unit, and you can also watch programs recorded on your home Blu-ray recorder.

Now, let me give you a concrete example of what is the main unit that can obtain these advantages. Although there are differences in the content that can be enjoyed, Mitsubishi Electric's "Diatone Sound Navi", Carrozzeria's "Cyber ​​Navi X Series", and "10V Cyber ​​Navi for exclusive use of vehicle models" have high-performance tuning functions and high sound quality. , "Cyber ​​Navi", Alpine's "Big X Series", these. In addition, Panasonic's "Strada" high-end model, Kenwood's "Ayasoku Navi" high-end model, and Carrozzeria's "Raku Navi" are also equipped with tuning capabilities similar to those mentioned above.

If the main units are replaceable, it is well worth considering replacing them. I want you to refer to it.

That's all for this time. Next time, I will continue to explain the next move from speaker replacement. looking forward to.

Shozo Ota | Writer After graduating from university, worked for a publishing company and gained a career as a magazine editor. After he was the editor-in-chief of car magazines, interior magazines, and car audio magazines, he retired from the company he worked for for about 20 years and became freelance. He is developing a wide range of writing activities centered on car audio, car navigation, and other car electronics related items. He is also involved in music activities as a life work.