Modern car is almost impossible to imagine without a good audio system and decent bass. As a rule, regular-type cars cannot boast of good sound, so it is better to do this work yourself. When building an audio system, perhaps the main task is to create a so-called sound stage in the car, on which images will be clearly localized and perfectly focused. Usually, the rear location of the subwoofer significantly complicates the formation of sound in the low frequency region. If the woofer is set incorrectly and the parameters are set incorrectly, the overall melody can be destroyed, and the sound of instruments with a low and medium range scatters around the cabin. Can this be avoided? How to make sure that the basses in the car are installed correctly?
Sound theorem
In theory, the easiest method is to install a subwoofer in the front of your cabin. Only in this case, the emitter will be located next to the midrange and tweeters, and the alignment of the sound stage will be noticeably simplified. Quite often they do just that. Professionals are well aware of all the advantages of this particular solution. They evenready to accept some difficulties, for example, the rather complicated process of creating a case of an intricate shape. However, an ordinary sound lover is not capable of such a task. Does this mean that you should be content with a subwoofer that is always buzzing and giving incomprehensible bass into the car? Of course not.
Is there life below 100 Hz?
If you do not want to place a subwoofer in the trunk of a car, then you need to carefully understand what happens in the car at frequencies below 100 Hz, and, of course, just resort to those features of auditory perception that Nature has generously rewarded us. Acoustics researchers note that in the region below 700 Hz, the temporal localization of the sound source is triggered. This ultimately leads to the fact that our brain perceives the difference in the time of arrival of an acoustic signal to the right and, accordingly, to the left ear of a person. If this effect is not observed, then it seems to the listener that the sound source is located directly opposite him, and a sharp increase in the difference indicates a shift from the center. This localization scheme works well in the upper bass and lower mids.
Now let's look at what happens when we install the speakers. What kind of bass will the equipment produce in the car? During the middle frequencies, sound waves will begin to form. They will spread throughout the car, bounce off the interior walls and begin to interact with each other. As the frequency limits decrease, wave propagation will begin to decrease. However, let's not go deep intothe physics of all these processes, let's talk about more accessible and understandable things.
What should a subwoofer enclosure look like?
In order for the bass to go into the car really high quality and deep, you need to pay special attention to the subwoofer cabinet. Car audio experts do not recommend purchasing ready-made and cheap boxes that are in abundance on the markets. These boxes are usually made of very thin plywood, which is simply not suitable for working with powerful low-frequency sound-reproducing equipment, since such a case quickly begins to vibrate and rattle during operation. A really high-quality box can be built using strong, uniform and solid materials. It is best to use MDF and HDF for this business. Keep in mind that the walls of the case should be at least 2 centimeters thick, more is even better.
The thicker the better
Ideally, the front wall should reach 70 millimeters, and the side supports - 40 mm. To further enhance the strength of the structure, spacers should be used between the walls. When purchasing a case, be sure to tap it. If you hear a loud response in response, such a box will not work, and if the sound turns out to be muffled, then this is exactly what we need. Feel free to purchase such a case and install it in a car. With it, the bass for your car will be rich and really high quality. However, that's not all. Keep in mind that such cases can already be sources ofsound distortion, especially if bad design calculations were made.
A little about the salon
In order to get good bass, it is not enough to assemble a cool subwoofer cabinet, you also need to correctly set the filter division frequency. An unsuccessful box can become a source of extraneous sound, about the same thing happens with loose parts located in the passenger compartment of the car. Keep this in mind when preparing your car for audio installation. Of course, it is easier to install basses in a car of 2013, that is, in a “fresh” one that has not yet realized what Russian roads are, than on a used car. It has fewer poorly fixed parts, uses more technological and advanced materials, so the sound is richer and deeper.
