How To Make Car Speakers Louder Without An Amp

How To Make Car Speakers Louder Without An Amp

How to make car speakers louder without an amp is a question many people who don’t have spare cash ask. Can it be done? Do you need an amplifier to make your speakers louder?

Installing an amplifier makes a huge difference to the volume and sound quality of your music, and is the best way to get the best out of your loudspeakers.

But what can you do if you don’t want or don’t have the space for an aftermarket amp? Is it possible to make car speakers louder without an amp? The answer to that is yes. In fact, there are many ways of making your music louder, such as sound deadening material, capacitors and other devices that improve the soundstage of your car.

How To Make Car Speakers Louder Without An Amp

There are several hacks to make your music louder without an amplifier. Some of them are better than others but the following will all have a positive impact on the volume of your music.

Sound Deadening

Want to know how to make car speakers sound louder without an amp? Sound Deadening is the best, albeit a time-consuming way to make your car audio louder.  That said, it is very effective and will definitely give you a more immersive soundstage while driving the car.


Sound Deadening comes in spray and mats is basically reducing the amount of resonance your car makes with all the vibrating. It acts as a decoupler from the things that can rattle, and dampens the vibration of any sound treated area.

It’s a bit of work, because you have to put the sound insulation material behind the panels of your car. The best place to add insulation is your doors, floor, trunk and headliner, but you can completely soundproof your car by putting it everywhere, even the engine hood of your vehicle.

Of course, you don’t play music in your engine, but cutting down on your engine vibration will dampen your car interior and make your music sound clearer and louder.

This is definitely the best way to cut all the noise and make your speakers sound louder. Want a look at the best sound deadening material for cars? Look no further.

Use a Subwoofer

Using a subwoofer is an obvious way to get more volume out of your speakers. A subwoofer is a specialized driver designed to produce low frequencies, and boy do they boom.

Adding a subwoofer to your car stereo system ensures you will get more sound from your whole system. You should install the sub and connect it to your head unit. Once installed adjust the phase and make sure it’s in phase with the rest of your system.

Many subs have a single-phase output or a variable dial set anywhere between 0-180 degrees. Simply, adjust the outlet or the phase dial to get level of bass you need.

This is important because if it’s not done properly with car speakers will compete for sound against the subwoofer. And that’s one way how NOT to make car speakers louder without an amp.

It’s not just the phase settings, but the crossover frequency on your subwoofer should also be set correctly.

A crossover and phase work in tandem to set frequencies, and they ensure your subwoofer works how it’s supposed to. You will get louder and clearer bass, and a subwoofer that’s free to work how it is intended, ensure your speakers will be free to do wht they specialize in.

As with the wrong phase setting, the crossover settings are out will cause both the sub and car speakers to compete for sound and will result in a distortion and poor sound quality.

Use Tweeters

If subwoofers are the biggest drivers, tweeters are definitely the smallest drivers, but if you install a pair of tweeters in your car it’s a sure way for how to make your car speakers louder without an amp.

Tweeter are about 1 inch in diameter and can go anywhere really, and they really make a big difference to your soundstage. All factory speakers have tweeters, but installing a separate aftermarket set will ensure you get more volume and clarity.

If you add both a set of tweeters and a subwoofer it will make your soundstage much louder and clearer, as it will free up the midrange to concentrate on a narrower frequency.

Use Capacitors

A capacitor is another device that can help in your quest for how to make car speakers louder without an amp.

A car audio capacitor filters out high frequencies in order to make the sound clearer and less distorted for the listener.

A capacitor is a necessary car audio device as it stores electricity when pressure is applied by way of voltage from the battery. This ensures it has enough charge at times when current demand becomes greater than what can be supplied via input.

This makes them efficient in regulating energy wastage while playing music, and allows you to play bass, which is generally louder. This allows your subwoofer and speakers to work optimally, which of course results in you getting the best out of your speakers.

Play Only High-Quality Music Files

Nowadays there’s a host of files that allow us to play our music, but as with everything else not all files are made the same.

Different file types for music

Compressed files are a good way to store more files on your device, but you lose quality in the stereo, so they’re not a good way to augment your speakers.

In general, the larger the size of the file, the higher quality the music will be, and better files will definitely make your car louder. Some sound of the best file formats that will make your music sound louder and better include: WAV, FLAC, AIFF, ALAC, DSF, DFF, SACD ISO. Although, Mp3 is to a high standard and will play with pretty much any device

If you stream or download songs, there are several options with the best being 256 kbps, 320 kbps, to use. Anything less than 126 kpbs will give you a lesser quality sound, all good if you to reminisce with an 1980s commentator.

Non-Invasive Add-Ons

There are many digital gadgets that will help make your speakers sound louder. Known as non-invasive add-ons, these gadgets are portable and easy to use and will surely enhance your listening experience.

Sirius Portable Satellite Radio

Some of the most common non-invasive add-ons include portable satellite radios, which will attach to your dash and sync with Bluetooth stereos. This will give you access to lots of stations and while manipulating the sound with the Bluetooth stereo application.

Other Bluetooth kits allow you to connect your smartphone to your head unit, so you’ll be able to enjoy good quality files that aren’t compressed as already mentioned.

These are a great way, and usually a cheaper way to get more out of your speakers, and ultimately enrich your listening experience.

Replace The Wires

Read all that and you’re still looking for ideas for how to make car speakers sound louder without an amp? Fear not, there are more ways.

An often-overlooked way is to replace your wires with new ones. As with everything else, wires need to be replaced from time to time.

Worn wires affect the electrical signaling, which affects the quality of the sound output. So, if you can hear the sound quality isn’t so good, replace your wires and make your music sound louder.

How To Make Car Speakers Louder Without An Amp

The obvious way to amplify your volume is to install an amplifier, but for those of you who don’t want to you can make your car louder.

So, how to make car speakers louder without an amp? It’s quite simple really: look after your equipment and make sure you have all the settings of your other devices optimally set.

Are your wires aged? If so, they might need replacing, and this will give you more power and better sound quality. As will getting some electrical gadgets to boost your signals or give you more options for better file formats.

And if you really want to make the biggest difference and get the loudest volume out of your speakers without an amp, you should look into soundproofing your car.

Have you tried any of the above methods? If so, leave a comment letting us know the outcome. If you have any other ways to get more out of your speakers without an amp, please leave a comment and we will look into it.

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