Get INSANE Bass out of the JBL Charge 4 in LFM with this Simple MOD

Рет қаралды 409,917

4 жыл бұрын

The JBL Charge 5 portable bluetooth speaker was just announced in 2021 but it's predecessor still has plenty of power. In fact, the main driver is fed with the same 30 watts as the new JBL Charge 5, which also has a separate 10 watt channel powering it's newly added high frequency driver.
In this video I'll show you a simple mod that will take your JBL Charge 4 to another level if you like using the LFM (aka low frequency mode or disable DSP). Anyone who got a JBL speaker and used this mode have probably noticed that if you "push in" one radiator, the other has more excursion. But also the bass response improves slightly. That's because the speaker wasn't designed for LFM (obviously) so they've tuned the enclosure for a higher bass frequency (about 65 hz I think). By closing one end (basically eliminating one passive radiator) we are retuning the speaker for a lower frequency. From my tests, with this mod the Charge 4 can easily go down to 40 Hz or even lower giving music a nice low bass punch. Other benefit is that the speakers driver is more controlled so it won't bottom out that easily due to high excursion thus being a bit more protected from damaging. Of course, using LFM is risky either way, so I'm not recommending using it if you're not sure what you're doing and you should always keep volume under 70% to avoid damage.
Background music:
/ retnikdubs
Test songs:
Wizard - I don't mind
Yaboii - Dynasty

Пікірлер: 561

@AudioCuriosity 4 жыл бұрын

If you liked the video share it with your friends :) *For this to work:* the speaker needs to have it's DSP disabled (aka LFM) by pressing - and BT buttons for 10 sec. and songs have to be heavily bass boosted.

@sebastix01_98 4 жыл бұрын

Or use an good equalizer like viper4Android..

@dimitrisefstratiou4240 4 жыл бұрын

Would it be fine to try that with my charge 3?

@AudioCuriosity 4 жыл бұрын

@@dimitrisefstratiou4240 sure, try it. might work for the Charge 3 also

@dimitrisefstratiou4240 4 жыл бұрын

@@AudioCuriosityOK, thanks a lot!

@MegaJoaoarthur 4 жыл бұрын

Audio Curiosity what is the intro music??

@Bansku__ 4 жыл бұрын

this was an option back in the days when you could actually buy a toilet paper

@LifeofLeium 4 жыл бұрын

THE DAMM COUGH COUGH

@VIRGILSHELTONII 4 жыл бұрын

I sell it... 20$ a gram. 😂

@NothingToYou- 4 жыл бұрын

I'm alg I got 3 box's of toilet paper because my mom works at a grocery store

@NothingToYou- 4 жыл бұрын

I'm alg I got 3 box's of toilet paper because my mom works at a grocery store

@richchiarito9794 4 жыл бұрын

LMFAO. Selling it on my streets for $.50 cents a sheet. Cheapest in the state.

@TheSpeakerGuy_Official 4 жыл бұрын

To be honest, all that your doing is capping one of the passive radiators so that more of the bass frequencies go to one passive radiator which therefore lowers excess surface area and creates more pressure which in turn causes more excursion in the one exposed passive radiator. But one side note, try not to overpower it because doing this regularly could potentially create air leaks and damage the actual driver overtime from excess internal pressure.

@uprightrug 4 жыл бұрын

The Speaker Guy very true. He should’ve mentioned that

@AudioCuriosity 4 жыл бұрын

Most drivers are capable in running even in sealed enclosures with no issues if the power rating isn't exceeded so no worries there. The only real issue would be damaging the radiator in time because of the higher excursion and of course possibly overheating the amp because the high pass filter is disabled.

@asphalt8kanieong438 4 жыл бұрын

The Speaker Guy do u know how strong the Charge4 radiator is, it’s not that easy to be damaged as it is designed for big bass. It can even handle over 3kg of force.🤣🤣

@rdebeer4071 4 жыл бұрын

@@asphalt8kanieong438 where did you get that information?

@tijmen7839 4 жыл бұрын

i like most videos of you are about your sony speaker

@Randy_bosss 4 жыл бұрын

Me : doesn't own a charge 4 Also me :sitting here with a 12" sub in my room *hmmm yes*

@LeroyJenkins666. 4 жыл бұрын

Right

@martinsb28 4 жыл бұрын

😂😂 me with two 18”

@xxg.tester7851 4 жыл бұрын

Me with a 4", 8" subs, 2 5" woofers and 1" tweeters

@ethanenchilada9341 4 жыл бұрын

Me with a 7" and a 6"

@leonklingler6499 4 жыл бұрын

Randy_bosss me chilling in my bed, having a charch 4 but also a sonos sub, two play 5 speakers, a sound bar and four play 1 speakers in my eoom, if i want bass, yea a modify my charch 4

@brynnond.6952 4 жыл бұрын

The corners of walls work the best to get maximum bass out of these speakers at least with my experience

@xavionhenley8977 4 жыл бұрын

In the corners it work especially with my flip 4

@forbiddenkalamari 4 жыл бұрын

I put my boombox in the bathtub and listen to it from across the house lmao

@bryaneditiontv600 4 жыл бұрын

Thats just gonna sound boomie

@xxg.tester7851 4 жыл бұрын

Yeah, my bath is in the corner, so i get the best bass

@sergeysmelnik 4 жыл бұрын

Bingo

@MOGLazarsharkk 4 жыл бұрын

Dude. This is a vibrator 100%

@finnworchurst6408 4 жыл бұрын

MOG Lazarsharkk bro legit thought that it was just a mod to turn it into a vibrator ahah

@lucash1955 4 жыл бұрын

2:12 OH MY GOD THIS BASS IS INSANE

@christopheralban4017 4 жыл бұрын

We gotta bass virgin over hea

@nikoniimperkeleesti 4 жыл бұрын

@@christopheralban4017 yeah :D these jbl people are sooo bass virgin

@soundchecc5081 4 жыл бұрын

@@nikoniimperkeleesti luul

@puresesh7985 4 жыл бұрын

You are all cringe

@bendinucci3766 4 жыл бұрын

you mean you all are cringe Smh u simp

@kurttug 4 жыл бұрын

With this mod the speaker will reach lower frequencies but at the expense of maximum volume.

@tegrqbruh4158 4 жыл бұрын

On JBL Xtreme you can hold down 1 passive radiator. When doing that you can hear about 45 hz and up clearly.

@nikoniimperkeleesti 4 жыл бұрын

@KrobzSmokes nope

@nikoniimperkeleesti 4 жыл бұрын

@KrobzSmokes tell me how? If you push radiators t Your speaker will move because air and air dont harm speakers

@nikoniimperkeleesti 4 жыл бұрын

@KrobzSmokes when u press radiators, speakers will move little bit not that much when the music is playing do you even have jbl speaker i have and i have pressed them so fast and never speakers move much

@nikoniimperkeleesti 4 жыл бұрын

@KrobzSmokes and btw spider cant extend they do max not extend

@soundchecc5081 4 жыл бұрын

@KrobzSmokes i didnt find any news of broken drivers in sealed enclosures

@tali_m8766 4 жыл бұрын

So now I want to see this done to a JBL Boombox

@snappishxs2643 4 жыл бұрын

Everyone: This has so much bass! Me with 4 10s in my car: Hmmmm

@Shomare100 4 жыл бұрын

Jeremy Bradshaw slightly relatable

@GEOVANNYQUEZADAgeov4nny 4 жыл бұрын

Soundstream?

@MentalExistence 4 жыл бұрын

2 12s 3000w 650rms

@918Kustomz 4 жыл бұрын

2 Skar evl 18s,taramp 3k. 45ah lto

@F__k-Society 3 жыл бұрын

If you need 4 10s they are strait ass Garbo. I have one 10 that would make your 4 10s sound like a kid's toy

@tanjunna 4 жыл бұрын

Music : Wizard/Akay - I Don't Mind

@melaniaslatan1177 4 жыл бұрын

Tanjun'na Gamers pls link

@tanjunna 4 жыл бұрын

@@melaniaslatan1177 kzfaq.info/get/bejne/mq-CoKhyvb6dg2w.html

@melaniaslatan1177 4 жыл бұрын

Tanjun'na Gamers Thanks very much

@cebedojames 4 жыл бұрын

yes removing the other radiator halves the tuning frequency. It will lower the power handling on the upper bass though.

@xxg.tester7851 4 жыл бұрын

Thankssss! Its working very fine, it jumps and the passive radiator moves more!!!

@AudioCuriosity 4 жыл бұрын

awesome :)

@Shirtlessaudiophile 4 жыл бұрын

My god I was using my iems and i didn't expect such a. Low to come out of this video

@supernova8948 4 жыл бұрын

This helped me a lot in my videos

@dochriskyo 4 жыл бұрын

Guys! Best modding if you just put the speaker down to the ground somewhere close to one of the corner. It needs some patience untill you get the best spot in the room but worth that hassle. Bas will be richer and lower 😎 try it!

@FLUFFS 4 жыл бұрын

Damn that’s crazy :0

@AudioCuriosity 4 жыл бұрын

yeah :) thanks for stopping by

@nasrvkvsh 4 жыл бұрын

Привет флаффс. Я твой зритель. (Im Russian)

@reinis8862 3 жыл бұрын

For thoose who are wondering, the spaker makes pressure inside the speaker which then tries to go out but the air is blocked by the radiator. And the radiator compresses the air into the speaker for better bass sound quality. And there are 2 on portable jbl speakers (not on jbl go, clip and partybox series) and they basically push out. If you use this trick it stops the radiator from moving and because you stopped only one from moving the other one is forced to take the pressure thats meant for both of them. Also sadly i have an xtreme 2 which is much bigger and im not able to make this mod. P.S. If you make the radiators take too much pressure it may rip because they are not made to take that much pressure.

@StaticVapour590 4 жыл бұрын

Best way to do this without that mod is to place the speaker about arm length from corner of the room, this will boost the low frequency output and you can play around with different placement, this works with any speaker. Height you can decide yourself

@AudioCuriosity 4 жыл бұрын

Indeed, room corners amplify low frequencies, thanks for the additional tip. But with this mod it only gets better because the speaker can produce even lower frequencies which then gets amplified by room placement.

@StaticVapour590 4 жыл бұрын

@@AudioCuriosity Yep

@everythingbro4786 4 жыл бұрын

Audiocuriosity Pls buy xtreme 2 and connect it to charge 4 and of corse do video with the mod both-lfm😏😏

@jasperlambrecht1906 4 жыл бұрын

how to break your Jbl charge 4!

@suro5753 3 жыл бұрын

Yhsper L is it true?

@RenanJeffrey 3 жыл бұрын

@@suro5753 oh course it will. Starve anything from what it needs and that's what will happen.

@ryuzinho2 3 жыл бұрын

*these speaker testing video are a great way to find awesome music* *I was in need for some new music and i found this way to get some good ones*

@mikehonda7934 4 жыл бұрын

Pretty much creating a 4th order band pass using the passive radiators. It’s a 5th order bass reflex design he made when you count the drivers.

@shouldiupload24 4 жыл бұрын

best comment

@kaedeschulz5422 4 жыл бұрын

Not really. It's just standard passive rad design

@dzsemx 4 жыл бұрын

These speakers are tuned for around 80 Hz. Fixing one passive radiator will tune down to about half frequency. You can stick some weights like coins to the passive radiators and you can tune down both. Just keep the extra weights balanced.

@AudioCuriosity 4 жыл бұрын

The Charge 4 is tuned to around 65 hz I think but yeah I guess you're right. And I've been considering retuning it with weights but that would have been more complicated and semi permanent solution so I chose the simpler method, but might try that also in the future.

@user-bm2qy1yf8p 4 ай бұрын

To activate the LFM Mode (its real expect charge 5 Flip 6) first press the Bluetooth button and minus ➖ button the same time for few seconds and this ring will pop up it actually activates LFM Mode more bass hope this helps!

@melaniaslatan1177 4 жыл бұрын

This feature is real good for bass (^_^) so nice!

@brentjepson5275 4 жыл бұрын

With the music bass test, you should've included that it distorts more without the mod

@hzd1494 4 жыл бұрын

Nice, i have the JBL BoomBox which you should indeed make a video for as well, i know it's big but imagine how much more bass can be added :)

@AudioCuriosity 4 жыл бұрын

I might get the new one when it comes out

@hzd1494 4 жыл бұрын

@@AudioCuriosity Even better, well if you do i'd like to also see what type of transducers it has compared to my old boombox. it's either 1 big Race-track styled driver or bigger regular woofers

@newviewzizo5898 3 жыл бұрын

try to activate the bass mode by clicking both the Bluetooth bottom together with the minimum volume bottom simply it will shift you to the bass mode with great performance differences

@ZAProjects 4 жыл бұрын

Nice MOD👍😀

@marcusm5127 4 жыл бұрын

Watching on my S8 with mono audio incapable of hearing the bass at all. While I have 2 15" beside me. Also I don't have a jbl charge 4. I don't know what I am doing and I shouldn't be here.

@RaymondDay 3 жыл бұрын

Nice job doing that. But I think the speakers and fighting with each other now. The air pressure in them. Maybe put some holes in the out side part of the side speakers. Make a temp plate to do it nice and even. That my make the speakers move battery.

@harithagotbeat1759 3 жыл бұрын

Wow deep Bass support you👍

@TechnikToni-Overtribe 4 жыл бұрын

I know that mod to that you have to block one passive Radiator in lfm that tunes the speaker deeper giving it more deep bass I tryed the same with xtreme 2 it’s insane

@AudioCuriosity 4 жыл бұрын

Yeah I can imagine the Xtreme 2 would be so much better

@faze_stypanh7902 3 жыл бұрын

It’s because when the passive radiator hits it creates air when you block it has no space so I pushes the passive radiator and make it more powerful

@thelmc 4 жыл бұрын

Playing this through my un-modded JBL and trying to tell if there’s a difference 🤔🤔

@qweater2161 4 жыл бұрын

My charg 4 sound like big bass when I out it under the table, so its bass is really cool.Or sometime coner of my room

@kaedeschulz5422 4 жыл бұрын

Get a good stereo for home use and you will know what real bass is. Not these portable toys.

@alberto-sama2022 4 жыл бұрын

@@kaedeschulz5422 i have it and i prefer my small jbl's. Maybe the bass is too much for me.

@alberto-sama2022 4 жыл бұрын

@@kaedeschulz5422 i have it and i prefer my small jbl's. Maybe the bass is too much for me.

@kaedeschulz5422 4 жыл бұрын

@@alberto-sama2022 idk but a good home audio system should sound a LOT better and the bass should go lower and not only 70hz or whatever these small JBL's can do. Every speaker manucfacture tunes their speakers different even inbetween models. Or maybe you should build your own speakers with a DIY kit :)

@LydonLewisDoUbLeZz 4 жыл бұрын

Welp I'm definitely gonna have to try this!

@AudioCuriosity 4 жыл бұрын

you should, it's worth it

@xavionhenley8977 4 жыл бұрын

I’ll try it with my flip 4

@inessentialtitle1994 3 жыл бұрын

It’s just too bad these speakers didn’t have a line/sub out. Great tweeters!

@user-wl5ph3wu1u 4 жыл бұрын

*This bass is the best on charge 4 😍*

@daveporter1507 4 жыл бұрын

Charge 3 was better. All fucking day

@TheSpeakerGuy_Official 4 жыл бұрын

Overall great video! :D

@antkoos 3 жыл бұрын

what mic are you using? bass sounds really good through it

@beanacomputer 4 жыл бұрын

Could make something like this with nicer materials as a sort of base/stand for it. Like a little dock you just put it in for LFM.

@uueu 4 жыл бұрын

Just me or that look like a "Pocket Pus"

@LydonLewisDoUbLeZz 4 жыл бұрын

It's just u😂

@randomgamertag 4 жыл бұрын

I clicked on the video just to find this comment. So I would say no your not the only one.

@cj4809 3 жыл бұрын

i put mine in my sock drawer and close it. that really amps up the bass

@Geniusinventor 4 жыл бұрын

I don't know that this speaker has bass. wooow soo much basss!.

@redrone6026 3 жыл бұрын

why is that that the charge 4 can go lower using LFM and why in LFM has more bass(very noticable)?

@kassn8 3 жыл бұрын

How to break your passive radiator... Block one end sending pressure to other end and eventually, one over pressurised and leaking radiator.

@JasonWGamingnProd 4 жыл бұрын

Advantages of this mod: -make the bass more direational - Bass sounds louder if it is facing towards you Disadvantage: - you can hear less bass if you are standing from the other side of the speaker Yes, indeed this mod can make you hear louder bass, but please don't take that as a "bass booster". This mod simply block one of the passive radiators, causing it not functioning, so all the bass can only come out from the other passive radiator, which is why you can see it vibrates crazy when he put on the cap. The reason why the bass is louder, is because it focuses the bass to a particular direction, instead of coming out from the left and right passive radiators, the bass now only comes out from the right passive radiator and facing towards you, so you can hear the bass much louder.

@dzsemx 4 жыл бұрын

Blocking one radiator tunes down the resonant frequency from 80hz to about 40-45Hz. In the meantime you give up a lot of surface area. Attach extra weights to the radiators to tune down to lower frequencies. The weights must be precisely equal on both sides.

@nonkynonk 4 жыл бұрын

One thing you have to consider, why wouldn’t the designers include something like this stock

@RenanJeffrey 3 жыл бұрын

Because its not safe and will be damaging to the unit in the long run.

@arminaspenkauskas702 4 жыл бұрын

You are just blocking 1 of the sides for more closure but the speaker will brake after a period of time because of the bigger output on the passive radiator

@carlosvarela5367 3 жыл бұрын

Great! is there a way that the bass in Charge 4 doesn't decrease with maximum volume?

@leqitletriax_4811 4 жыл бұрын

Thanks for the tip cuz I want to buy the charge 4 for myself pretty soon and what‘s the name of the backgroundmusic cuz you just linked his channel...

@mylofryett9160 4 жыл бұрын

Simple bass boost on any Bluetooth speaker with iPhone or android iPhone. go into settings and goto music and click on eq select bass boost Android. Download bass boost app Conclusion it’s easier to bass boost a android than and iPhone but on iPhone you don’t need to download an app unless you have delete Apple music

@H4rM0n1cpeezy 4 жыл бұрын

I’m sorry, but what’s a “toilet paper?”

@prodblxck0ut. 4 жыл бұрын

It’s a tissue u clean ur butt with

@H4rM0n1cpeezy 4 жыл бұрын

genius Bass Fan Opex r/wooosh

@joshuareese3871 3 жыл бұрын

Song the passive radiator is only sending one low hz to the driver

@kerrypence4201 4 жыл бұрын

OK here’s what you’re doing, you’re creating an Isobarick enclosure. By capping off one side like that the passive radiators are moving in conjunction with each other instead of opposite of each other. This will effectively double the output of the bass response. There’s much more to this explanation but basically this is what you’re doing...double the bass in half the space.

@AudioCuriosity 4 жыл бұрын

Hi Kerry, thanks for your comment. But I wonder, isn't the volume created under the cap way too small to be counted as an actual enclosure? Personally I think that all I'm doing is eliminating a PR and basically retuning the enclosure at a lower frequency. Just like in ported enclosures when you use a narrower port instead of a wider one but with the same length.

@weenieroastpyro5497 4 жыл бұрын

The W-King D8 dominates the Charge 4 mod or no mod for $75 US

@marcioalcantara4789 4 жыл бұрын

But with the pressure would increase the expenditures of energy?

@alberto-sama2022 3 жыл бұрын

Gg charge 4 sounds so good

@nikolaiandreev5299 3 жыл бұрын

I watch the video with 2x party box 300 sounds good

@LifeofLeium 4 жыл бұрын

Its going to slowly ruin your passive radiators so you can do it and it will work but I do not suggest to do it for long periods of time that all

@Krakadil 4 жыл бұрын

Hehe gonna use it :D

@baku60x48 4 жыл бұрын

Try with the Flip 4😳👌

@toq_5520 4 жыл бұрын

I will check on my ch3

@AudioCuriosity 4 жыл бұрын

Do it and let us know! It should work.

@techdude9325 4 жыл бұрын

What's the name of the background beat

@noskill7820 4 жыл бұрын

Are a dexter or something because you are so smart

@nu7166 4 жыл бұрын

i have 2 questions: 1. why your speaker distors on those "low" frequencies in normal mode, is it because u used it too much in LFM? 2. have u tried to do this mode to the both sides, like both passive radiators? try it, and if it is nice, show us

@AudioCuriosity 4 жыл бұрын

in this video I don't use normal mode so the distortion you're hearing is over excursion of the driver in lfm

@nu7166 4 жыл бұрын

@@AudioCuriosity oh, i thought it was on lfm but i m curious how does it sounds with this mode on the both passive radiators

@DU60 4 жыл бұрын

So it only need one passive radiator

@Shirtlessaudiophile 4 жыл бұрын

But also what if you put actual sibs instead of diaphragms on both sides

@6.8.5.sahhh.m9 4 жыл бұрын

I've tried it on my jbl boombox and got as low as 32 hz........... But I wouldn't put it at full volume though because of distortion... maybe 60% - 70% depending on what song you're playing.....

@AudioCuriosity 4 жыл бұрын

32 Hz that's nice! yeah definitely don't go past 70% in LFM as the radiators will have crazy excursion and bottom out

@wawilked1 4 жыл бұрын

Ive been considering using a passive radiator and a single 12 in an underseat truck box

@AudioCuriosity 4 жыл бұрын

Should work but you'd need a shallow mount sub.

@multyryex1761 4 жыл бұрын

Its anything than Good for the speaker

@stashgaming4723 3 жыл бұрын

This will work on jbl flip3

@b-e-j-dvideos2751 4 жыл бұрын

This sounds sooooo goooddd

@AudioCuriosity 4 жыл бұрын

yup!

@nathanrojas7725 4 жыл бұрын

It’s cool that you thought of this idea, but kids that don’t care about sound quality will not even give this video a chance. Design a cap to push a “bass enhancing” product and it will do better

@AudioCuriosity 4 жыл бұрын

well whoever appreciates better bass quality I think will find this useful, the rest can simply entertain :) thanks for your comment!

@nathanrojas7725 4 жыл бұрын

Audio Curiosity I see what you are saying. Wish more people cared about this like me

@emmettmarbury6571 4 жыл бұрын

I often throw my phone down in a coffee cup to listen to music with more volume. Maybe you should try putting that thing in a 5 gallon bucket.

@AudioCuriosity 4 жыл бұрын

Haha yea, not sure what it would do regarding bass, but it would probably amplify the rest of the frequencies and make it louder.

@emmettmarbury6571 4 жыл бұрын

I'm willing to bet that it amplifies the whole spectrum. I'd bet a large terracotta vase or pot would be even better. Those little JBL speakers are a serious bang for your buck. My friend has several of them. I just have a little bose color sound link. It's no where near as loud for the money. It's probably a little cleaner though. But JBL is owning everyone for the price, durability, battery life. It's really a no brainer. But I never had one of those brain thingies. So I stick with bose. 😂

@AudioCuriosity 4 жыл бұрын

@@emmettmarbury6571 I would like to test the Bose Micro one day, I've heard is one of the best sounding speaker in that size.

@bryanrmcnair01 4 жыл бұрын

Wow...my sons does exactly that while shooting basketball after he use to have an 808 can size Bluetooth speaker and used to put it in a tea pitcher to increase the sound! Well until they got the JBL 300 partybox and now they just open up the bedroom window thats near the basketball goal! ALSO wants the 1000!

@johng6673 4 жыл бұрын

But do you know why? You are creating a sealed enclosure, resonating bass from that side, giving the sound waves something to vibrate and make the tone, and by sealing it, you change from 2 passive radiators to 1. If you place it in a corner, versus in your hand, you get a similar effect, but not with the change in frequency.

@94e88 4 жыл бұрын

No, no and no. The reason this works is because the speaker has 2 passive radiators and when one of them gets stopped it lowers the tuning and that reinforces the lower frequencies.

@johng6673 4 жыл бұрын

@@94e88 When you seal off the other side, that passive radiator no longer fully functional. The sealed side will stop the movement on that side, making it more of a sealed enclosure, and the other side will actually be moving much more. Try watching it removed and with it added.

@94e88 4 жыл бұрын

@@johng6673 it doesn't make it more like a sealed enclosure, it makes it a deeper tuned passive radiator closure. And yes it does move more because of the reduced radiator("port") area.

@DaGoose 4 жыл бұрын

@John G No, this mod does not make the speaker a sealed enclosure. @94E You're on the right track so i'll add on: The passive radiator setup on JBL portables is equivalent to a ported speaker enclosure. Think of the 2 passive radiators on JBL's speakers as 2 ports. You have a solid low frequency playing on the speaker so air from the excursion of the drivers will pass in and out through the 2 ports evenly. Now, lets say you cover one port. The air passing in and out from that port will transfer over and stress the other port because that's the only way where air can pass in and out. This is equivalent to what's happening in this video. Motion from the drivers is moving the passive radiators evenly. Covering one passive radiator will double the movement to the other passive radiator because the other passive radiator can't move. Now to explain the frequency drop: A frequency drop is present because there is only one passive radiator active. It's like removing 1 of the 2 ports off of the speaker. This allows lower frequency to be played at the cost of lower efficiency. Meaning, the drivers in the speaker will not reach maximum excursion with this mod in use unless if you feed more power in to the drivers (which will likely blow them). All of this is true according to Hoffman's Iron Law. This is also why JBL doesn't have their portables go down to low frequencies such as 40hz.

@07dadrilla30 4 жыл бұрын

Will it work if you just put the folded paper around and put that same side on the ground vertically?

@AudioCuriosity 4 жыл бұрын

I don’t think it would make a good seal. Just find something that fits properly, doesn’t need to be this wood thing. Make a cap out of cardboard tube and seal it with another cardboard piece.

@channelofsouls2840 3 жыл бұрын

Should the tissue paper be used or not?

@jonathancarlsson9979 4 жыл бұрын

Try this with boom box it would be insane bro

@AudioCuriosity 4 жыл бұрын

yeah I bet it would

@theolk6726 4 жыл бұрын

well boombox passive radiators can bottom out on normal mode so with this so called mod of covering up the other passive radiator would probably just make the other passive radiator start to scream

@AudioCuriosity 4 жыл бұрын

@@theolk6726 haha right. but there's one thing you can make to avoid the Boombox radiators make the hitting noise, that is removing the plastic radiator cage from the inside. That would be an advanced mod indeed and might end up ripping the radiator from over excursion because there's no longer a safety net but yeah.

@robertomartins1032 4 жыл бұрын

Dont work in boombox, I already tested it, if you press the other radiator the bass become weak and strange, it works in Xtreme I have one, and if you completely push the other radiator will work as the same as this

@bongo6974 4 жыл бұрын

@@AudioCuriosity or buy ND model where passive radiators only bottoms out in lfm

@stashgaming4723 3 жыл бұрын

Can you do 2 side

@joker-iw9ts 3 жыл бұрын

Why my jbl charge 4 isn't doing bass waves?

@deusexmachina4527 4 жыл бұрын

Is this okay in the long run? I mean since the other pr is covered, the exposed pr is "overworked" which will loosen it in the long run..

@AudioCuriosity 4 жыл бұрын

Well first off using the speaker with it's filters disable (LFM) is not recommended because the amp and driver's coil will heat up at higher volumes. Regarding the passive radiator yes, it will move more with this mod, so it could get damaged faster over time. However as long as the volume isn't too high, I think the speaker will be fine.

@jonathannocon 3 жыл бұрын

Idk... Constricting the driver like that cant be good for either the driver or PR in the long run... I mean, from the looks of it. The idea is your forcing the sound to exit on the other end right instead of it freely moving on both directions? Wouldn’t temporarily cupping that end to see if you like how it sound be the first step? If you like that sound, the JBL Pulse has pretty much that exact sound/setup no mod/hack needed.

@easyice544 4 жыл бұрын

Hi. Is there something problem at my charge 4 my speaker firmware is 2.0.0 until now no notification of updating to 3.0.0 is there any solution?

@AudioCuriosity 4 жыл бұрын

have you tried downloading the app and connecting the speaker? if there's an update it should say

@lauranschultz629 4 жыл бұрын

whats the name of the background song????????

@AudioCuriosity 4 жыл бұрын

Break by Retnik beats

@panagiotisantiochos957 4 жыл бұрын

FYI Is it safe to use low frequency mode? 1 answer Answer this Question Mario at Customer service · 6 months ago There is no Low Frequency Mode for our speakers. It is a Bypass Mode that turns off the DSP and other functions/features. We do not recommend enabling the bypass function. This may cause the speaker to fail. This is not a function promoted by Harman. This function is specific to internal quality and service testing/repairs. The impact of the low frequency mode on the speaker in the long run includes the following; sound gets distorted at higher volume and the driver will get blown eventually and would be not covered under warranty if the damage is caused by putting the speaker into bypass mode.

@AudioCuriosity 4 жыл бұрын

It's cool that Harman actually replied to this and of course they're right. It's not recommended if you're not sure what you're doing and be prepared to lose warranty.

@Peter-lf9yc 4 жыл бұрын

What is the music of intro?

@MegaJoaoarthur 4 жыл бұрын

Dew peter kzfaq.info/get/bejne/qqp_n5yk0afPlKM.html could be that

@iAlwaysStink 4 жыл бұрын

I have an extreme, does this harm my speaker in any way by doing this? Wanna make sure before making stupid descisions

@AudioCuriosity 4 жыл бұрын

I don't think so as long as you don't play it loud (under 65%) and for long time. you can search on YT "JBL LFM" and see how many abuse their speakers and they're still going

@parkboyjb843 4 жыл бұрын

Good shit 💯💯💯💯🔥🔥🔥🔥🔥🔥

@AudioCuriosity 4 жыл бұрын

thanks for watching!

@RWL2012 4 жыл бұрын

You mean mod, MOD is the Ministry of Defence. Also what does INSANE stand for...? It's good that you discovered this though, but where do I get one of those wooden mortar things...?

@AudioCuriosity 4 жыл бұрын

haha right, not Ministry of Defence. you don't necessarily need a mortar like that, anything that fits should work fine, like a cardboard tube ring with it's end capped