車のスピーカーから低音が出ない?すべきことは次のとおりです。

車の所有者が工場出荷時のスピーカーを車に付属のスピーカーよりもはるかに優れたアップグレードに交換することは非常に一般的です.しかし、工場出荷時の車のスピーカーを新しいものに交換するときに発生する傾向がある問題がかなりあります.

一般的な問題の 1 つは、スピーカーから低音が出ないことです。では、車のスピーカーから低音が出ない理由は何ですか?

車のスピーカーから低音が出ない最も一般的な理由は、アンプまたはレシーバーからのプラス線をスピーカーのマイナス端子に設定して、スピーカーの極性を逆にしたことです。

たとえば、左のスピーカーが正しい方法で接続され、右のスピーカーが逆に接続されている場合、低音は「キャンセル」されます。

新しい車のスピーカーのセットアップは少し簡単に思えるかもしれませんが、特に極性に関しては、正しい方法で行っていることを確認する必要があります.

オーディオ愛好家や技術の専門家ではない人は、これがどれほど重要かを理解していないかもしれませんが、低音を最大化するためにスピーカーを正しい方法でセットアップする必要がある理由を説明するためにここにいます.

車のスピーカーから低音が出ないのはなぜですか?そして、それについて何をすべきか。

多くの人が工場出荷時の車のスピーカーを新しいものに交換する傾向にある多くの理由の 1 つは、運転中に再生する音楽にパワーと生命力を加えるためです。

もちろん、スピーカーの音量と全体的な品質は別として、音楽のダイナミクスを向上させる最も重要な側面の 1 つは低音です。車に付属する工場出荷時のスピーカーには、通常、ニーズに十分に対応できるパワフルな低音が付属していません。

そのため、工場出荷時のスピーカーを強力な低音を持つ新しいスピーカーに交換することをお勧めします。

低音は音楽に力強さを加え、心と体を音楽に合わせて動かすキックとビートを追加します。低音は、運転中に音楽を聴くときに没入感を高めるのにも役立ちます。

低音がなければ、音楽はフラットに見え、スピーカーに求めているパワーと活気がありません。

しかし、工場出荷時のスピーカーをすべて自分で新しいより良いものに交換するときに人々が直面することが多い問題は、新しいスピーカーから低音が聞こえなくなる可能性があることです。多くの人はスピーカーの音量を調整して、低音が出るように聞こえるようにしようとしますが、スピーカーの音量が低音が出ない主な理由ではないため、これはうまくいきません。

とはいえ、私たちはあなたの車のスピーカーがどの音量でも低音が出ない理由と、この問題を解決する方法を見つけるためにここにいます.

スピーカーの極性について

新しく取り付けた車のスピーカーに低音がない主な原因は、スピーカーの極性と関係があります。しかし、これを理解していただくために、いくつか説明させてください。

スピーカーが音を出すとき、スピーカーはアンプまたはレシーバーからの信号に従って動きます。スピーカーのケースを開いてコーンを観察すると、受信している信号に応じて前後に動きます。

スピーカーの動きは、周囲の電波に影響を与えるため、音の品質にも影響します。

このように考えてください。ドラムを叩くと、スティックがドラムを内側に押し込み、周囲の電波に負圧が発生します。その同じ圧力が、あなたが聞いている音に影響を与えます。そして、ドラムが跳ね上がるとすぐに、電波にプラスの力が生じ、周囲の音に影響を与えます。

コーンの動きが聞こえる音に直接影響するため、同じことがスピーカーにも当てはまります。

アンプまたはレシーバーから正の信号を受信すると、スピーカーは自然に前方に移動し、電波に影響を与えて、スピーカーが再生している録音された音楽に適した正の圧力を生成する必要があります。

スピーカーがそのような信号を受信するたびに内側に移動する必要があるため、負の信号と同じです.

ドラムの例に戻りましょう。スピーカーが再生している録音された音楽にドラム サウンドが含まれている場合、サウンドが再生されるたびにスピーカーは内側に移動し、ドラムが叩かれる音を再生する必要があります。

その間、スピーカーがドラムが跳ね上がる音を再生するとき、それは前進しているはずです.

したがって、スピーカーを取り付けるときは、アンプまたはレシーバーからのプラス線をスピーカーのプラス端子に接続する必要があります。マイナス線を処理するのと同じ方法です。

そうすることで、スピーカーは、アンプまたはレシーバーからの音に応じて、前方に移動する必要があるときに前方に移動し、内側に移動する必要があるときに内側に移動できます。

しかし、ワイヤーを混ぜたらどうなるでしょうか?これは、スピーカーの位相がずれているときです。

スピーカーの位相がずれている =低音が出ない

前述のように、新しく取り付けた車のスピーカーから低音が出ない通常の理由は、スピーカーの位相がずれているか、スピーカーの 1 つが正しく配線されておらず、極性が混同されている可能性があります。

これは、プラスのワイヤをマイナスの端子に接続し、マイナスのワイヤをプラスの端子に接続すると発生します。

スピーカーの位相がずれているときに何が起こるかを視覚化するために、スピーカーの動きに戻りましょう。スピーカーが再生している録音されたサウンドが空気中に正圧を生成する場合、スピーカーは前方に移動する必要があると述べたので、スピーカーも空気中に正圧を生成します。同じことは、負圧にも似ています。

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.