How to Make Subs Louder Outside The Car

How to Make Subs Louder Outside The Car

Learn how to Make Subs Louder Exterior The Automobile

Are you dissatisfied along with your sub(s)? Do you wish to be heard a few blocks away? Do your subs go away one thing to be desired even if you push them laborious? Are you craving that boomy thunderstorm of bass which you can really feel and listen to?

When you answered sure to any of the questions above, then you definitely’ve come to the fitting place. On this publish, we’ll stroll you thru a number of efficient ideas that may make your subs louder exterior the automobile.

Study: Learn how to make subs louder exterior the automobile

As bassheads, how a stereo system sounds dramatically determines our notion of it. And whereas it could look like making your subs sound louder ought to price an arm and a leg, it doesn’t must.

The information we listed below are geared for each easy manufacturing facility methods and extra refined setups. Most of them don’t contain large funding, and also you don’t must spend cash on each facet to beef up your automobile’s sound and obtain extra SPL ranges exterior your car.

Desk of Contents


Earlier than transferring ahead with making these adjustments, it’s best to test in case your sound system isn’t too loud to be avenue authorized, and that you just’re not breaking any regulation. It might come as a shock to some however you will get an extreme noise ticket (disturbing the peace) in case your car’s sound system is just too loud.

The legal guidelines range relying in your location, so it’s essential to test the principles and ordinances that particularly apply to your state or territory. Usually talking, something that’s excessively loud with out good cause is deemed a violation of the regulation.

What Makes a Subwoofer Loud?

Opposite to widespread perception, the “loudness” of a speaker is just not solely based mostly on its bodily dimensions. Though speaker dimension performs a serious function in its quantity capability, energy dealing with, effectivity, insulation and number of different variables come into play as nicely.

Many subwoofers, in reality, are uniquely designed with extraordinarily small bodily dimensions, but are nonetheless able to pumping out clear, wealthy and loud sound.

Energy dealing with — Wattage

The quantity of energy – measured in watts – a subwoofers can deal with is likely one of the key variables within the speaker’s manufacturing of quantity and “loudness”. All subwoofers have a most variety of watts that they will deal with and it’s the producer will let you know what that is. The full quantity of wattage a subwoofer can deal with impacts tremendously how loud it may be turned up.

Normally, producers present two energy figures subwoofers:

  • Nominal energy (RMS): What a subwoofer can deal with long run with out being broken
  • Peak energy : What a subwoofer can deal with in brief bursts with out being broken

Subwoofer Dimension

It’s a endless query — what dimension subwoofers play loudest? It’s not a straightforward query to reply as it’s essential have in mind quite a lot of issues together with sensitivity, enclosure sort, and energy dealing with.

Although not the one issue, the scale of subwoofer performs a major function in your sound system’s quantity as nicely. Usually talking, bigger subs can transfer a variety of air than small subs, due to this fact they will ship loud and hard-hitting bass.

Whatever the speaker’s dimension, nonetheless, with out sufficient energy juice, the sound system will nonetheless be restricted by its energy. The 2 elements, due to this fact, go hand in hand.


Sensitivity – measured in dB – goes hand-in-hand with power-handling to attain excessive output. Sensitivity score measures a subwoofer’s means to transform the incoming electrical power into acoustical power.

A sub that has a excessive sensitivity score requires much less energy to supply the identical quantity of sound as a mannequin with a decrease sensitivity score.

Enclosure sort

There’s a direct relationship between the kind of enclosure a subwoofer is mounted in and the kind of sound it produces. Usually talking, sealed bins render the deepest, most correct sound, whereas ported enclosures produce extra quantity (loudness).

8 Tricks to Make Subs Louder Exterior the Automobile

Tip #1: Dimension issues

As we’ve defined above, there’s an enormous correlation between the scale of subwoofer and the way loud it will probably play. Automobile subwoofers vary in dimension from a tiny 6.5 inches all the best way as much as 18 inches.

When you’re a critical basshead who likes to show it up actually loud and really feel that intense, bone-shaking influence of bass hitting your chest, and area isn’t a problem, go for the most important subs.

That’s to not say that smaller subs are nothing to write down residence about. Fairly actually, a superb small subwoofer will do wonders if correctly powered and mounted in an appropriate enclosure.

Tip #2: Construct a greater ported sub field. Or purchase one.

Usually talking, there are two bass camps—those that prefer it “tight” and those that prefer it “boomy.” The kind of bass you favor in the end depends upon your musical preferences — and might even range relying on the model of music.

So, because you’re right here, we’re going to imagine that you really want your bass to increase and also you need most quantity in your music. And for that matter, constructing a greater ported subwoofer field or shopping for a pre-made one is your best option.

Ported bins makes use of a “Vent” (which is extra usually cylinder or rectangle formed) to strengthen low bass response. This vent redirects sound from the rear of the cone and provides it to the sound coming from the entrance, making the bass louder.

The port additionally generate an audio impact that’s usually likened to the sound of any person blowing by means of a bottle, and that tonal impact strengthens the word the cone performs.

On prime of all the pieces else, in ported enclosures, the sub’s cone has higher freedom of movement.

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These traits make ported bins extra environment friendly. The upper the effectivity, the decrease the facility juice required. In different phrases, you need to use a smaller amplifier than you would want with a comparable sealed field to play on the similar quantity.

Constructing a ported enclosure may not be simple or low-cost. It takes takes persistence, time and a strong understanding of enclosure volumes and different technical phrases to assemble a superb subwoofer ported enclosure.

Not all subwoofers are designed to be mounted in “ported” enclosures. So, in the event you determine to construct your personal ported field, ensure you’ve received the fitting one in there.

You possibly can blow a sub that’s designed for sealed field use by driving it laborious in a ported enclosure. It’s additionally of utmost significance to ensure you’ve received the proper inside quantity for the sub you’ve picked out. A mismatch can dramatically scale back efficiency and even injury your subwoofer.

Filling the enclosure with polyester fiber stuffing can also be fairly essential in making your subwoofer loud; It’ll make your subwoofer assume it’s in a much bigger field. I do know that sound counterintuitive, and also you is perhaps asking how does filling an area with materials assist enhance low-end output. Nicely, the factor is that Polyester fiber stuffing slows down sound waves contained in the field, fooling the subwoofer and making it carry out as if it’s mounted in a much bigger enclosure.

For optimum efficiency, use 1 to 1-1/2 kilos of stuffing per cubic foot of field quantity.

When you don’t wish to get your arms soiled and wish to save your self from the effort of constructing an enclosure, then you possibly can go for shopping for a pre-made one.

Tip #3: Flip the subs dealing with the trunk not the seats

In the case of getting loud bass in your automobile, subwoofer placement issues. Actually, the place you place your subwoofers within the trunk makes an enormous distinction. Not solely the place you place the enclosure, but in addition which approach you face the audio system themselves.

Most individuals assume that the easiest way to expertise nice bass output is by turning the subwoofer field to face the seats as an alternative of the trunk, which is totally fallacious.

Opposite to what most individuals consider, turning your subs dealing with the trunk is one of the best strategy to make your subs louder not solely exterior the automobile however inside as nicely attributable to cabin achieve (extra on this under). It’s type of counter-intuitive. You’d assume that dealing with the subs away from you’d trigger the bass waves to move out behind the automobile, however apparently not.

The rationale rearward-facing subs yield such spectacular outcomes is because of the frequency being an inverse operate of wavelength. In different phrases, the decrease the frequency, the longer the wavelength. So, dealing with your field backwards means the gap traveled is that a lot additional, due to this fact decrease frequencies profit in-cabin.

All in all, the position of your subwoofer will rely tremendously in your listening preferences. A place that’s not that loud at 45Hz might most likely be loud at different frequencies and vice versa.

Tip #4: Run a number of subs

It’s a endless query — Are two subs higher than one? Nicely, the reply is usually sure, assuming these subs are of the very same model and mannequin. Nevertheless, evaluating completely different sized automobile subwoofers, even when they’re made by the identical model is almost unattainable.

“Say you in contrast a Rockford Fosgate 12 inch sub to 2 of its 8 inch subwoofers. Nicely, what if the 12-inch subwoofer type of sucks? Or what if it’s tuned for optimum quantity whereas the 8-inch drivers are tuned for tight bass? Efficiency variations like these would make the outcomes of a comparability inaccurate and meaningless.”

Given satisfactory energy, a a number of subwoofer set-up will play louder and punch more durable as a result of their mixed cone floor space yields considerably higher and smoother bass response.

Tip #5: Feed your subwoofer(s) sufficient energy

It goes with out saying that extra energy is usually higher as a result of bass notes are energy hungry. With that stated, you don’t wish to underpower your subwoofer(s) underneath any circumstances.

Underpowering a subwoofer gained’t essentially harm the sub – however distortion will. Not giving it sufficient energy simply implies that your music will lack a lot of its pleasure and element, due to this fact, it gained’t sound nice sufficient to your ears.

Along with not underpowering your subwoofer, you must also make it possible for the amp you utilize to energy your subwoofer isn’t being overworked and sending out a clipped sign.

The clipped sign, particularly one which has been amplified, is a sub’s worst enemy. It may wreak havoc in your subwoofer(s) by making it attempt to do issues it’s not designed to do, which results in it tearing itself aside or overheating and burning out.

Keep in mind that the majority automobile subwoofers – if not all of them – can deal with much more than their specified RMS scores, so feeding them slightly extra energy juice than their advisable RMS score is secure, so long as it’s clear and distortion-free.

It isn’t loudness that damages an under-powered subwoofer, it’s making an attempt to get bass quantity by turning up a distorting sign that does it.

Tip #6: Sound deadening materials may “LOWER” your SPL

There’s no denying that utilizing sound deadening materials is likely one of the greatest methods to enhance your sound system. It helps with eliminating noise and vibrations. The latter competes along with your music and disrupts your listening expertise.

Including sound deadening materials will dramatically enhance sound high quality in your automobile. Which a part of your automobile to deaden and which to not relies upon tremendously in your car, so making a blanket assertion like “solely deaden the trunk and the entrance doorways” is inaccurate.

Extra: It actually works!

With that stated, in the event you don’t know the strategic and correct areas to deaden and people to depart naked to attain one of the best SPL rating attainable, deadening the entire automobile to the intense quantity is your greatest wager.

Tip #7: Roll down the home windows & sunroof

Nicely, this one is fairly apparent and doesn’t want a lot dialogue. If you wish to be heard a few blocks away, it’s essential set the bass notes free by rolling down your automobile’s home windows and sunroof.

Tip #8: Correctly tune your subs

It may take a while and energy to high-quality tune your subwoofers and get the precise bass sound you need out of your subs, nevertheless it’s price it. A well-tuned subwoofer won’t solely add depth and richness to any sort of music, nevertheless it’ll additionally make your subwoofers comparatively louder.

To correctly tune your subs, listed below are the steps it’s essential comply with.

Step #1: Correctly set your amp’s achieve management

Any sort of distortion – be it speaker crackling, flapping, crunching, or hissing – is the worst enemy to your audio system, subs, and eardrums. To forestall it, it’s essential that the amp’s achieve is correctly set.

To try this, begin off by enjoying some music and switch up your receiver’s quantity till till the music sounds distorted; then dial down the quantity till the music sounds clear once more. The present quantity stage is the utmost quantity your receiver can attain and nonetheless play cleanly.

Now, it’s your amp’s flip. Attempt turning your amp’s achieve management up barely till distortion kicks in; then again off the achieve barely till the distortion clears up.

Congratulations, your amp achieve is correctly set. Now, you possibly can decrease the receiver quantity to a extra snug stage.

Step #2: Flatten the sign, open the low-pass filter

  1. Subsequent, flip your sub amp’s achieve to the minimal stage attainable.
  2. Swap the low-pass filter on and set it as excessive as it will probably go.
  3. In case your amplifier has a bass increase, flip it off.
  4. In case your amp comes with a distant stage management, set it to its center place. This manner you’ll have the selection of boosting or chopping the bass on a person tune later down the street.

Now, let’s transfer to the receiver aspect

  1. Regulate your receiver’s bass tone management to zero, or “flat” setting.
  2. When you subwoofer is featured with a stage management, set it to “no achieve” setting.
  3. Some receivers – particularly aftermarket ones – sport a crossover, low-pass filter, or bass increase on their subwoofer output. Make sure that all these options are turned off, too.
  4. Generally receivers have a crossover, low-pass filter, or bass increase on their subwoofer output. Make sure that these options are all turned off, too.

P.S: If each your amp and receiver are featured with the low-pass filters, crossovers, or bass boosts, don’t set them on each the receiver and the amplifier on the similar time.

Step #3: Regulate the subwoofer achieve and low-pass filter

Now, flip the receiver’s quantity as much as ¾ full and play some music. Flip up the achieve in your amp till the sound from the subwoofer utterly overpowers the opposite audio system, with out distorting.

Subsequent, hold listening to the music popping out of your sub, and slowly dial down the low-pass filter on the sub amp’s till all of the high- and mid-frequency notes are gone.

What a low-pass filter does, is that it passes lows on to the subwoofer, and blocks the notes you don’t need your subwoofer to play. If low filter is about at 100 Hz for instance, the amp will block the notes above 100 Hz and solely permits these underneath that to cross.

As a normal rule of thumb, at all times filter out the strings, vocals, guitars, and cymbals. Solely the bass and the low drums must be allowed to achieve the subwoofer.

Step #4: Regulate the bass increase and subsonic filter

Is your subwoofer amp featured with a bass increase? If that’s the case, attempt to flip it a bit to listen to what the bass drum appears like if you do. Making use of just a bit bass increase will increase the output of low frequencies and brings up the kick lots.

Needless to say in the event you select to spice up the bass, you have to to re-adjust the amp’s achieve, to compensate for the increase and forestall your system from clipping and distorting. If it sounds distorted, decrease the sub amp’s achieve till it goes away.

In case your subwoofer is mounted in a vented enclosure, utilizing your amp’s subsonic filter to tame overly loud low frequencies is a should. This can lower down the degrees of the notes at which the enclosure resonates.

It goes with out saying that it’s essential hold tweaking and fine-tuning all of the filters till you hear one thing you want. And if you’re glad with how your system sounds, then you possibly can flip the sub amp’s achieve all the best way down

Step #5: Matching the subwoofer stage to the receiver quantity

Now that every piece of the puzzle is accomplished, let’s play some music. However earlier than that you just there’s one further step and that’s to match your subwoofer stage to that of your headunit.

To try this, begin by turning your receiver quantity knob as much as its most, distortion-free place, and slowly flip up your amp’s achieve till the bass notes sound balanced and easily blended with the remainder of your music. And voila!

Closing Ideas

On the finish, we will all agree {that a} good sounding system could make your automobile flip extra heads when you drive previous jamming to the beat and we firmly consider that our collection of ideas won’t solely allow you to get extra bass out of your subwoofer, however will even make your subs louder exterior the automobile.

Keep in mind that generally even the best enhancements to your automobile sound system can yield spectacular outcomes.

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