Avtomobilski zvočniki nimajo nizkih tonov? Evo, kaj storiti.

Povsem običajno je, da lastniki avtomobilov svoje tovarniške zvočnike zamenjajo z nadgradnjo, ki je veliko boljša od zvočnikov, ki jih ima avto. Toda ob zamenjavi tovarniških avtomobilskih zvočnikov z novimi se rado pojavi kar nekaj težav.

Ena od pogostih težav je odsotnost nizkih tonov iz zvočnikov. Kaj je torej razlog, da iz zvočnikov mojega avtomobila ne prihajajo basi?

Najpogostejši razlog, zakaj iz avtomobilskih zvočnikov ne prihajajo basi, je ta, da ste zamenjali polariteto zvočnikov tako, da ste pozitivno žico iz ojačevalnika ali sprejemnika povezali z negativnim priključkom zvočnika.

Če je na primer levi zvočnik pravilno priključen, desni pa obrnjen, bodo nizki toni »preklicani«.

Nastavitev vaših novih avtomobilskih zvočnikov se morda zdi nekoliko enostavna, vendar se morate prepričati, da to počnete na pravi način, zlasti kar zadeva polarnost.

Tisti, ki niso avdiofili ali tehnični strokovnjaki, verjetno ne bodo razumeli, kako pomembno je to, vendar smo tukaj, da vam razložimo, zakaj morate zvočnike nastaviti na pravi način, da povečate nizke tone.

Zakaj iz avtomobilskih zvočnikov ni basov? In kaj storiti glede tega.

Eden od številnih razlogov, zakaj mnogi ljudje svoje tovarniške avtomobilske zvočnike zamenjajo z novimi, je, da dodajo več moči in življenja glasbi, ki jo predvajajo med vožnjo.

Seveda je poleg glasnosti in splošne kakovosti zvoka zvočnikov eden najpomembnejših vidikov, ki izboljša dinamiko vaše glasbe, bas. Tovarniški zvočniki, ki so priloženi vašemu avtomobilu, običajno nimajo basa, ki bi bil dovolj močan za vaše potrebe.

Zato boste morda želeli zamenjati tovarniške zvočnike z novimi z močnimi nizkimi toni.

Bas glasbi doda moč ter dodatne udarce in utripe, zaradi katerih se vaše srce in telo premakneta ob glasbi. Nizki toni vam prav tako pomagajo dati več tistega potopljenega občutka, ko poslušate glasbo med vožnjo.

Brez nizkih tonov je vaša glasba videti ravna in preprosto nima tiste moči in vzdušja, ki ga iščete od zvočnikov.

Toda težava, s katero se ljudje pogosto srečujejo, ko sami zamenjajo svoje tovarniške zvočnike z novejšimi in boljšimi, je ta, da iz novih zvočnikov morda ne slišijo basov. Mnogi ljudje poskušajo prilagoditi glasnost zvočnikov, da bi slišali kakršen koli videz nizkih tonov, vendar jim to preprosto ne gre v prid, ker glasnost zvočnikov ni glavni razlog, zakaj ni nizkih tonov.

Kljub temu smo tukaj, da ugotovimo, zakaj vaši avtomobilski zvočniki nimajo basa pri nobeni glasnosti in kako lahko odpravite to težavo.

Razumevanje polarnosti zvočnikov

Glavni krivec, zakaj vaši na novo nameščeni avtomobilski zvočniki nimajo nizkih tonov, je povezana s polarnostjo zvočnikov. Da pa boste to razumeli, naj razložim nekaj stvari.

Ko vaši zvočniki oddajajo zvoke, se premikajo glede na signale, ki prihajajo iz ojačevalnika ali sprejemnika. Če poskušate odpreti ohišje zvočnika in opazovati stožec, se bo premikal naprej in nazaj, odvisno od signalov, ki jih sprejema.

Gibanje zvočnikov bo vplivalo tudi na kakovost zvoka, ki ga oddajajo, saj vpliva na zračne valove okoli njih.

Razmislite o tem na ta način. Ko udarjate po bobnu, bo bobnarska palica potisnila boben navznoter in tako ustvarila podtlak v zračnih valovih okoli njega. Isti pritisk vpliva na zvok, ki ga slišite. In takoj ko se boben dvigne nazaj, ustvari pozitivno silo v zračnih valovih in tako vpliva na zvok v okolici.

Enako velja za zvočnik, ker premiki stožca neposredno vplivajo na zvok, ki ga slišite.

Kadarkoli prejme pozitiven signal, ki prihaja iz ojačevalnika ali sprejemnika, bi se moral zvočnik naravno premakniti naprej in vplivati ​​na zračne valove, da ustvari pozitiven tlak, ki se dobro ujema s posneto glasbo, ki jo zvočnik predvaja.

Enako velja za negativne signale, saj se mora zvočnik premikati navznoter, kadarkoli prejme takšne signale.

Vrnimo se k primeru bobna. Če posneta glasba, ki jo predvajajo zvočniki, vključuje zvoke bobnov, se mora zvočnik premikati navznoter, kadar koli zvok predvaja zvok udarca bobna.

Medtem bi se moral premikati naprej, ko zvočnik predvaja zvok, ki ga oddaja boben, ko se dvigne nazaj.

Torej, ko nameščate zvočnike, morate priključiti pozitivno žico iz ojačevalnika ali sprejemnika na pozitivno sponko zvočnikov. Enako bi morali ravnati z negativno žico.

S tem se bo zvočnik premaknil naprej, ko bi se moral premikati naprej, in premaknil navznoter, ko bi se moral premikati navznoter, odvisno od zvokov, ki prihajajo iz ojačevalnika ali sprejemnika.

Kaj pa se zgodi, če se žice pomešajo? Takrat bo zvočnik izven faze.

Zvočnik izven faze =brez basa

Kot smo že omenili, je običajen razlog, zakaj iz na novo nameščenih avtomobilskih zvočnikov ne slišijo nizki toni, ta, da zvočniki morda niso v fazi ali morda eden od njih ni pravilno ožičen do te mere, da ste pomešali njihove polaritete.

To se zgodi, ko povežete pozitivno žico z negativnim polom in negativno žico s pozitivnim polom.

Da bi vizualizirali, kaj se zgodi, ko vaši zvočniki niso v fazi, se vrnimo k gibanju zvočnikov. Omenili smo, da bi se morali zvočniki premakniti naprej, ko posneti zvok, ki ga predvaja, ustvari pozitiven tlak v zraku, tako da bodo tudi zvočniki ustvarjali pozitiven pritisk v zraku. Enako je podobno negativnemu zračnemu tlaku.

But, when the speakers are out of phase, the speakers will be moving forward even though the recorded music it is playing created a negative pressure because of how you connected the wire transmitting negative signals to the positive terminal.

So, when the car speaker plays the sound of a drum getting struck, which should create a negative pressure in the airwaves, your out-of-phase speaker will now be moving forward instead of backward. As such, the pressure that the speaker is creating does not match with the sound that it is playing.

If this is what happens when the speakers are out of phase, why is there no bass coming from your car speakers?

How speaker polarity affects bass

The reason why bass is usually the most affected when your speakers are out of phase is that bass depends a lot on air pressure.

So, if you noticed in home theater setups compared to car speakers, they always come with a large subwoofer that handles most bass-related sounds.

And when you get close to the subwoofer, you can actually feel the changes in the air pressure made by the movements they make, especially during the parts of the music or the movie that are heavy on the bass.

Going back to your car speakers. The bass is affected when the speakers are out of phase primarily because they cannot create bass.

Because bass is mainly dependent on the air pressurization made by the positive and negative pressure caused by the speakers’ movements, you won’t be able to get any bass at all if you inversed the polarization of your car speakers.

The car speakers will be moving forward when they should be moving backward, and vice versa. As such, the bass will be inaudible at best.

When you have one pair of speakers in the car, and you were able to get the right polarization in one speaker, but you inversed the polarization in the other one, there is a good chance that you won’t be able to hear any bass. And this is because the speakers will effectively “cancel” each other out.

What happens is, the speaker that is out of phase will try to compete with the speaker that is in phase .

When the in-phase car speaker moves forward following the sound signals it is receiving from the amplifier or the receiver, the speaker that is out of phase will be moving inward instead.

The positive air pressure that the speaker that is in phase makes is basically getting canceled by the negative air pressure that the speaker that is out of phase is creating.

Cancellation happens more often in smaller cars because of how the speakers are usually close to each other. However, it can still occur in larger cars, but the bass may not be as audible as you might have wanted it to be.

All in all, the biggest culprit as to why you do not hear any bass from your newly installed car speakers is that you may have inversed their polarity, and one of the speakers is out of phase.

How to fix the missing bass issue?

Test speakers polarity

Suppose your wires are mixed up, and you accidentally placed the positive wires of your amplifier or receiver with your speakers’ negative terminals and vice versa. In that case, you might think that the fix is relatively easy because all you have to do is to re-wire everything again and make sure that you did things right this time.

Well, to some extent, that is true because the best way for you to fix the polarity of your car speakers is to make sure that you connected the right wires with the correct terminals. However, there are still reasons why it might not always be as easy as we may think.

There are some cases wherein the wires and terminals on the car speakers are not labeled properly to the point that it will be difficult for even the most experienced user to get the wiring right.

Usually, the red wires denote positive wires while the black ones are the negative wires. However, again, there are times when neither the wires nor the terminals are correctly colored or labeled. That’s when the confusion tends to happen.

So, the first thing you need to do to know if your speakers are wired correctly is to test the polarity. Here are some of the ways you can do:

Use a speaker tester

The easiest way for you to test your speakers’ polarity when the wires are not labeled is to make use of a speaker tester. They are relatively affordable and quite easy to use, depending on the speaker tester you purchased.

Speaker testers are not only useful for testing your car speakers’ polarity, but they can also be used for other reasons because they generate their own signal.

As such, a speaker tester can be a good investment for you, especially if you are an audiophile.

The tester I often use and I am happy with is the PAC TL-PTG2 . It does not only test the speakers, but it also checks if they work properly in general, and can be used with all sort of speakers thanks to the ability to create tones from 13Hz, up to 10,000Hz.

You can find PAC TL-PTG2 tester on Amazon, and if you want to test your speakers with a product of really good quality, click this link and check the latest price.

Use a 9V battery

A relatively cheaper way to test your speaker polarity out is by using a 9V battery that you may have lying around in your home. If you do not have one, click this link and check the latest price on Amazon.

Using a battery is a relatively easy method and will not hurt your budget, especially if you had just spent a lot on your new car speakers.

Here is how you use a 9V battery to test your car speakers’ polarity:

• Open one of your car speakers so that their wires are revealed.

• Place one of the wires of a speaker to the positive terminal of the battery. Do the same with the other wire and connect it to the negative terminal of the battery.

• Observe how the speaker reacts and moves after you had made the connection to the battery. If the speaker moves outward, then it only follows that the wire you connected to the positive terminal is the positive one and the wire you connected to the negative terminal is the negative one. But if the speaker moves inward, it only means that you inversed the polarity, and you connected the wrong wires with the wrong terminals on the battery.

• Find a way to label the wires on the car speakers so that it will be easier for you to remember which is which.

• Do the same with your other car speakers if you are unsure which wires are positive or negative.

After you had tested your car speakers’ polarity and it came out that all or some of them were actually out of phase, the logical step to do next is to fix the wires. During fixing wires, make sure that the positive wires are connected with the positive terminals, and the negative wires are connected to the negative terminals.

Additional reasons for missing bass and fixes

If your car speakers’ polarity were correct all along and you still encounter bass problems, the reason might not be a problem with the wiring.

• Instead, it could be because you installed new speakers that are much stronger than your factory speakers. This can happen if you, for example, left the factory speakers in front but only replaced these in the rear of the car.

You won’t be able to hear any bass from the front because the new speakers will be canceling the bass coming from the factory speakers.

In this case, an easy solution is to remove the factory speakers so that you’ll only be hearing the sound from the new speakers or to replace the factory speakers with the same aftermarket as already installed.

• There are also cases wherein the wires may have been correct, but the speakers are not getting enough power. That is where external amplifiers come into play to provide the speakers with the energy they need to run well enough to produce the bass you wanted.

The bottom line is that your car speakers need something that could give them more watts so that they would be able to work efficiently and at their full capacity.