Hello there, Im looking into making a sound system that makes deep bass sound that can be heard miles away and sound source direction cant be detect by human ears.

Has anyone made this kind of system before and can please share your knowledge?

Im completely newbie to the law of soundz although back in the days i loved the ministry of sound

I just know from googling that if the frequency is lower than 80hz, human ears cant detect the source of directeion.

So what i need to look for when purchasing a subwoofer? I see these big ass speakers at homestores for like 2K-6K bath.

but i have a feeling the sound wont go the distance.

is it wattage and hz compatiability i need to check out for?

Why do you want to pester and annoy your neighbors?

No he wants to aim it at the Wat.

Just now, VocalNeal said:

No he wants to aim it at the Wat.

Then he should know that the wat will aim back at him even worse and for hours and days at a time.

He wants to be careful what he wishes for , it does not take much to set Thai's off,

and too many of them have guns and don't seem to be afraid to use them .

regards worgeordie

For about 5 years I lived next to a wat and at 4 AM the big drum came:

da da da DA duh da da da each time faster and faster.

Edited July 13Jul 13 by JerryM

1 hour ago, bkkryn said:

Hello there, Im looking into making a sound system that makes deep bass sound that can be heard miles away and sound source direction cant be detect by human ears.

Has anyone made this kind of system before and can please share your knowledge?

Im completely newbie to the law of soundz although back in the days i loved the ministry of sound

I just know from googling that if the frequency is lower than 80hz, human ears cant detect the source of directeion.

So what i need to look for when purchasing a subwoofer? I see these big ass speakers at homestores for like 2K-6K bath.

but i have a feeling the sound wont go the distance.

is it wattage and hz compatiability i need to check out for?

What power is the amplifier? That will guide your speaker choice.

I suspect that while you may be able to hide the direction the sound is coming from to some extent, I doubt you will be able to hide the speaker. It will be massive. If the sound can still be heard miles away, it will be very uncomfortable close up.

You have a really bad concept.

Below about 80 Hz, humans become progressively worse at locating where a sound comes from. By around 40–60 Hz, it is difficult to pinpoint the source. That doesn't mean it's impossible, because harmonics, vibrations, reflections, and rattling objects often give away the location.

The bigger issue is distance.

Deep bass doesn't travel "miles away" from a home-sized speaker. While low frequencies are absorbed less than high frequencies, sound pressure still drops rapidly with distance. To produce bass that's clearly audible several kilometres away would require an enormous amount of acoustic power—think concert or industrial-scale systems, not a 2,000–6,000 baht home subwoofer.

When buying a subwoofer:

• Maximum SPL (Sound Pressure Level) is far more important than the wattage printed on the box.

• Frequency response tells you how low it can play (e.g. 25–120 Hz).

• Driver size (12", 15", 18") generally matters more for deep bass than amplifier wattage alone.

• Cabinet design (ported, horn-loaded, bandpass) has a huge effect on output.

• Ignore exaggerated "PMPO" watt ratings. Look for RMS power and measured SPL.

A 15-inch professional PA sub can produce far more bass than a cheap 18-inch home-theatre sub, despite similar advertised wattage.

If your goal is for people not to know where the bass is coming from, one high-quality sub crossed over below about 80 Hz can make localization difficult, but it won't be inaudible from miles away.

For the loudest sub you need a fan rotary subwoofer, google it.

Ive got 2 18" subs each powdered by a 2k amp in my home system.... the neighbours know all about it!

thanks for yall advices. i kind of get it that to get the boomy ones, the setup needs to be ported type and rotary fan for da extrme.

im not sure about the connection between the low frequency, wattage, dB, amplifier.

as i read, double the wattage increases 3dB. but dB is overall loudness of the sound, and dB alone can not measure loudness of low frequency sound?

amplifier provides extra electrical power and controls the volume of high/low frequency sounds? do u need additional amp to get the mile effect?

so if i would like the low frequency soundz to travel 1km, what kind of spec would you recommend?

awful sound quality is ok as i do not consider about treble high frequency sound quality.

like this under 10K baht from homepro, will it travel da distance?

https://www.homepro.co.th/p/888108800093?lang=th&gad_source=1&gad_campaignid=17611471329&gbraid=0AAAAADDk-KXtFQOKco47TTpt9R9eRTJoB&gclid=CjwKCAjwvNfSBhBiEiwAyaGMCXpQkE0gwp5Xv9NBwv3NHTyIMLgAtOI_B_M5cCx7HOfjHDKIumE9tBoCHn8QAvD_BwE

1 hour ago, bkkryn said:

thanks for yall advices. i kind of get it that to get the boomy ones, the setup needs to be ported type and rotary fan for da extrme.

im not sure about the connection between the low frequency, wattage, dB, amplifier.

as i read, double the wattage increases 3dB. but dB is overall loudness of the sound, and dB alone can not measure loudness of low frequency sound?

amplifier provides extra electrical power and controls the volume of high/low frequency sounds? do u need additional amp to get the mile effect?

so if i would like the low frequency soundz to travel 1km, what kind of spec would you recommend?

awful sound quality is ok as i do not consider about treble high frequency sound quality.

like this under 10K baht from homepro, will it travel da distance?

https://www.homepro.co.th/p/888108800093

No, it won't. Too small and too weak.

Take a bass drum, for example. There is a reason why they aren't the size of a snare drum. Size matters.

A 10" speaker on it's own cannot move the requisite amount of air. You'll be looking at 15" and above or an array. Then you would need the power behind it.

In other words, a gigantic and heavy speaker box and speakers.

Example: https://www.erinsaudiocorner.com/loudspeakers/jbl_m2/

Of course, as you stated, you want just the low frequencies. You can buy a gigantic one, ready made from a sound system shop or have one specially made for you. The HomePro speaker is just for in-room usage.

You'll want something that weighs as much as you do, solidly anchored to the ground.

On 7/13/2026 at 5:42 AM, Ralf001 said:

Ive got 2 18" subs each powdered by a 2k amp in my home system.... the neighbours know all about it!

I shouldn't laugh...

On 7/13/2026 at 5:33 AM, JBChiangRai said:

For the loudest sub you need a fan rotary subwoofer, google it.

That won't work, as the room acts as a speaker box. The OP wants to direct their sound outside. He'll need to build a room/box.

does low frequency work with horn speakers?

these muslies are blasting their horn speakers and can hear miles away and im guessing its much cheaper set up?

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Has anyone made this kind of system before

Yes, I put a giant subwoofer in the back of a 1988 Honda Civic Hatchback.

can please share your knowledge?

When you got far away from the car, you could only hear the bass which sounds like BZZZ BZZZZ BZZZ BZZZZ.

You're welcome.

On 7/13/2026 at 7:33 PM, JBChiangRai said:

For the loudest sub you need a fan rotary subwoofer, google it.

A Lesly box?

with a Hammond as well.

On 7/15/2026 at 9:51 PM, bkkryn said:

does low frequency work with horn speakers?

these muslies are blasting their horn speakers and can hear miles away and im guessing its much cheaper set up?

It should be banned.

https://en.wikipedia.org/wiki/The_Hum My life has been destroyed by this type of insidious low frequency noise, I implore you to not do it. Why would you want to cause so much suffering?

On 7/13/2026 at 12:08 PM, bkkryn said:

I just know from googling that if the frequency is lower than 80hz, human ears cant detect the source of directeion.

So what i need to look for when purchasing a subwoofer? I see these big ass speakers at homestores for like 2K-6K bath.

but i have a feeling the sound wont go the distance.

is it wattage and hz compatiability i need to check out for?

Are you looking for a music-sound system or a system to annoy neighbours?

Some military equipment manufacturers would have good knowledge in the latter.

Deep bass is omnidirectional. For music, you can use a low sub system, where your electronic crossover cut at or 100Hz — or even 80Hz — by 12dB or more per octave. You will need an active system, so you have enough amplifier power for the very low frequencies; watts in the amp is more important than quality for the deep spectrum. In general, you will be talking about a 4-way system, with normal 3-way system for anything above the deep sub. Speakers for deep sub works best on ground level to use floor-coupling; preferably 2x18", or 1x21", or 1x24" sub-bass in dedicated sub-boxes. 24" was the size of speaker used in the "Earthquake" film-sound system, but 21" works equally good — I used it in cinema designs — you only need a mono system for that deep frequencies, which is same way Dolby-stereo works. It saves you for buying more than one speaker box and one huge amp — preferably one that can be bridged — if it's not a larger open air concert set-up, you are considering.

If you instead had wished to point the sound on one direction, a kind of original "Turbosound"-tube with a 10° dispersion might work with less amp-power.

So, your suggested modest 10k baht-system won't do anything more than working in a living room as sub on your flatscreen. For travelling one kilometer — be aware of both wind and air temperature, works better at night than in daytime — you'll likely need something like 4 deep subs, or more, with 1,000 to 3,000 watt amp-power for each sub; talking from experience. Note, it's the real stuff mentioned here, not Thai-style watts...

3 hours ago, ibjoe said:

https://en.wikipedia.org/wiki/The_Hum My life has been destroyed by this type of insidious low frequency noise, I implore you to not do it. Why would you want to cause so much suffering?

hahahahahaha.

Recently removed my 4 x 12" subs set up from my daily.

Going to a wall with 6 15" subs.

I wanna do hair tricks!

Edited July 18Jul 18 by Ralf001

On 7/13/2026 at 11:12 AM, novacova said:

Why do you want to pester and annoy your neighbors?

Not just neighbors; it can be heard (and felt) in homes kilometers away! This has been the bane (pain) of my life since they started selling cheap super Bass speakers in Thailand. Although in the last couple of years this bass nuisance, thankfully, seems to have abated. I'm hoping that it is not just temporary because of the death of the Thai Queen. The OP must be insane to want to do this.

https://www.speakersincode.com/best-subwoofer-for-deep-bass/