Try fitting in with some cheap prs instead of drivers for experimental. It might have more punch than normal prs? I dunno.... lets try that out. 👍

Before:best bass After: not so good bass

it louder, but the original has deeper bass

The original sounds better... the passive radiator gives better bass pump than putting regular speakers

The speakers need to be wired up in series. By wiring them in parallel, your lowering the ohms, increasing stress on the amp, and increasing the low end filter with the lower ohms. It would work best if the side speakers had twice the impedance of the original; so that, they could be wired in parallel with the intent of replacing the original driver. I guess in the end, more research could have made your first try so much better. Thumbs up for entertainment!

You could improve the bass if you hooked the new drivers up, out of phase with the big single driver. Just switch the polarity from + to - so that when the big driver pushes out, the smaller drivers are pulled in, and when the big driver is pulled in, the smaller drivers are pushed out. Right now they are all fighting each other to compress the air inside the unit.

- Carefully. When you connect 3 Drivers to each other in a parallel order, the final impedance decreases radically. If you use the modified Charge 4 at high volume for longer time you can kill (burn) its amplifier. - You lost bass, because the box space decreased behind the driver when you replaced the Radiators with fixed drivers (and those also require box space).

Great work mate, people are still reviewing things on there youtube channels but here you are with new ideas and videos which are entertaining and informative at same time and interesting to watch...

2:55 😂😂 my favorite part

Thanks man, for putting my comment in the video, I appreciate that.

Before the sound test, I thought the charge 4 modified will cut the bass and the loudness but after I was impressed for the loudness. I think you could put passive radiators on the front and back and the charge 4 modified is going to be better than the original. Good video and keep up with the good work

nice work dude! cool 3d printing

🥳 Congratulations to 40K 🥂

Legit was just thinking about me doing that on my charge 4 and then I see this pop up in my feed

I love ur vids man! im subs for years on this channel i think :)

It's out of phase, it could work if the polarity for speakers on sides is reversed to stock one! Try this out again, it should change the sound if you do that

I would assume that with the modified one, though, it won't sound good since air can't get out and move. It will compress inside and not allow the speakers to move as much, right?

Thank you so much for video it was fine!

Nice vid dude💪🏻

Is there a way to add a low pass filter on the main driver. Also im guessing with the speaker designed for a single driver porting the enclosure might actually allow the speakers to move more freely and increase the bass.

Wow, what a creative project. I thought it would sound louder because of the 3 drivers but the bass would decrease considerably due to the lack of PRs but hey, the bass also increased considerably along with the volume. Nice. Speaker companies should start adopting this technique on their new products. Nice job.

Awesome lol sounds like there rite in front of you with the mod version, I want one 👍

It's like you went I my brain I was thinking about that for years

after removing the PR's does the speaker sound less muffled to your ears. Im thinkin about doin this too to my speakers, but not this much, just a small hole , because the speakers after drilling have more of an open sound to my ears through my headphones.

Hearing it through my beats by drey the charge 4 modified I could definitely hear a differences it was louder and also the beat had a bigger hit than the charge 4 original. Great job!!!

Came here from the video where you "killed" the PR's in the charge 4. And while you might have an accent, I was impressed how good everything looked in your place, and the video itself as well. And although you'd been better off watching a YT video showing how to disassemble the radiators without damage before you started, it was still an entertaining video to watch. But please wear protective eyewear when you do crazy experiments like that. No amount of views, trumps damaging your eyes.

Huge difference 🔥🔥

the modified one has more treble and not enough bass but sounds louder

Very hard-work

I love the experiment. Crossover will cut the bass to the flip drivers.. You could use just one of the two passive radiators, or use more powerful speakers from a Charge 2 or 3? I'm considering an upgrade from my original Charge, so thanks for all the reviews..

Excellent job dude, i have an jbl charge 3 that got wet inside, I recycle the battery, but with this know I can recycle the speakers and put them into another jbk

Im interested in what it would sound like with the end drivers wired up with reverse polarity, it may help with the extra pressure. cool vid :)

When he did that sneeze that’s what she said thing I subbed right away I laughed so hard

Can you put high excursion drivers in the sides and put a Passive Radiator in the place of the "original" woofer to be a passive radiator in the "middle"?

Hey Dr. Modify did you have the JBL Charge3/ 4 Plus 360* raffle yet ? In so any idea when, approximately how many can enter the raffle for this Amazing one of a kind speaker ? Your speaker subbed fan who loves modify something better to the way it should have been made.... Dave from Rhode Island

Do you think or know if there are different models of charge 4 giving different performances? I know the flip 5 has different models

When are you going to put them out of phase and see how they sound???

What if you only added one speaker to it and had a passive radiator on the other side, or you could replace it’s original driver with a massive passive radiator and leave the flip speakers on the side.

Flexing that dent on the charge 4 is LIT AF

Try fitting low pass filters on the added speakers and a port if there isn't an existing one seeing as you have removed the passive radiators.

U should try low frequency mode on the modified one

You can add a passive radiator silicone and put it around the drivers installed so it could act as a 2 in 1 passive/active speaker like the 808 thump speaker driver design

For more bass (I know bass isn't all that matters, but it's fun), you'd have to extend the ends of the enclosure and add larger passive raditors. There'd be a bit of trial and error (or maybe calculation if you're smarter than me), to get the right resonance from the larger PR. More surface area tends to mean better efficiency (or dB/W), which these portable speakers really benefit from. Hope yourself or someone else does this, I'd be really interested in the results.

You might consider adding some stuffing (cotton or poly fill) to tame the standing wave inside the module. Also, adding additional drivers to the internal amp will reduce total impedance which could damage the amp.

I'm not gonna to lie it looks super cool

I fully agree with you about the sound

We want more like these..

How about putting a passive radiator on the right side beside the original speaker to improve bass more

Original sounds clean. The modded one sounds distorted. But it’s a cool way to salvage speakers if both were down and you could make one working speaker.

Before : good bass but kinda quite After : loud AF but less bass

make an experiment what's gonna happen if we peel off the rubber protector of that passive radiators?

did you try reversing the polarity of the wire?

I think the problem is due to the phase, did you invert the polarity of LG speakers? The project is very interesting in Christian, when the speaker kicks out, the radiators kick in, so since the radiators don't have power it doesn't need to do anything else, LG speakers need to reverse the polarity

This is super cool. I do stuff like this too lol

Also, I see everyone talking about how before it had deeper bass, and this isn’t true, it’s the same speakers but with a passive radiator, it acts as a turbo charger for the lower frequency, extending the bass frequency on the speaker, so yes it sounds better, but in reality it’s all pushing the same bass (for people who don’t know what a passive radiator is) this is why when u turn up the volume the deep seems to go away. The passive radiators are supposed to deepen the bass at lower levels say 20-30hz per say

Can anyone please help me find red flip 6 both passive radiators for me to change because the silicone is chipping off and making it unestetical?

i hope you connected the wires backwards on the small speakers so when the main speaker push out they pull in!

What’s happening is that air pressure from the main driver is used to power the passive radiators. Now that you have the flip drivers in it, the air pressure in the cabinet is trying to woof the flip drivers but the drivers themselves are trying to woof against the main driver. So what I would do is either cut power to the flip drivers or reverse the polarities to the flip drivers.

You reduced the impedence of that speaker to 1.33 ohm.(3 4 ohm speakers in parallel equals 1.33) that increases the output power of the amp. That's why its louder.

You are connecting 3 speakers in parallel. This does reduce the resistance much so the amplifier could be destroyed (charge 3 board). Please be aware of that! This time it worked but it could destroy the board.

Making one with two drivers and one bass radiator would be amazing

I have an extreme 2 and the right passive rattles.. how do I fix that?

It would have more bass if you hooked up the small drivers out of phase with the large one. Having them in phase creates more pressure to work against, but out of phase, the pressure should be more equal because as the top speaker retracts the outside ones expand, allowing more travel on the driver and more bass. It would be hard to get the bass as good as the passive drivers though.

Because of the impedance amp is destorting try to rewire and maybe a port to let the "sub" breathe?

It sounds good on the higher notes but not the best in bass as you said and you should try to make the extra side drivers have some material around the sides to have a radiator or have the drivers themselves move as a passive radiators.

Solid video! I just did this with the worst sounding boombox i have ever heard. The Toshiba TY-CWU500. Put in old JVC speakers firing forward and the crap speakers out to the sides. Toshiba decided to use +/- 30 gauge wires, so stripping and soldering them was an annoying chore!

The modded charge 4 loss all it's bass or as the other one has ok bass. That is the whole point of the pr-s, is to do bass.

You also must take into account that the Passive Radiators are much larger than the drivers used to replace the PRs. Also another thing to remember is is that a passive radiator moves in the opposing direction of the active driver therein. While replacing the PRs with an active set of drivers means that all cone area is moving in the same direction while it's built to have a type of amplification of air movement inside the enclosure from the PRs moving in the opposite direction. Plus all speaker were in parallel which loads the internal amplifier more than it should be which causes distortion and clipping at lower volumes than normal.

What ohm load did you end up wiring down to

what about resistors to lower the power income to the flip 4 speakers? it should work right? I'm not an expert, just a hobbyist with love to the Topic xD :)

Try the speakers in bass mode by holding the volume down and Bluetooth buttons at the same time till you see the light change once then you let go.

Did noticed that the dust cap in the speaker was dented?

It sounded like the vocals got alot louder and clearer, sane with the midrange, all around alot nicer to listen to

The one problem is that all of the drivers are in the same box. The original driver is way bigger with the others so the original is going to mess with the output of the other 2

What i think before the soundcheck was even the result in the Soundcheck: Way more open mids, but the Bass can not completely compensate the movement from the membranes. The original passive radiators do that, but now the air pressure works against the flip-drivers and they produces air movement too. So it’s normal to get small interferences, the bass can’t work correctly. Also the overall tuning doesn’t fit any more. For me the Charge and also the Flip are not really good speakers. A mix if both don’t make it better. JBL has to tune the Speakers better, that should be no Problem because the hardware is ok. So if JBL would simply change the sound signature i would give them a chance. So many fans say that the bass on the JBLs is great, but it’s not. Bass and hights is all you hear, but both not well defined, not strong. The Charge looses in Mids and Stage. The Flip looses in harsh metallic hissing hights and thin bass at higher levels. So it makes no sense to mix that. Very interesting video and i really like and enjoy your comparisons, but pity about the time invested in this test project. ✌🏻

the mod has a more open sound, all spectrum is covered but sounds too flat. necessity of an equaliser to dim a bit the mids

I think it sounds better!Of coure,it does not have much bass,but for my taste (for my music taste)thats good...I love the mids from the modified one.

Cool!

The modified one sounds more dull and has less bass. I also noticed you could hear the flip speakers peaking at times and making a small crackle. It's a cool project but I would suggest maybe replacing the flip speakers with subwoofers and maybe adding a tweeter beside the big driver in the front to provide those crisp highs.

Just a question Y don't u do any off the wired speakers unboxing or reviewing like home theatre's or soundbars,coz i would like to see u doing it there are few who deos it bt.they don't go deep into the details & dont hv knowledge like u do... there is lot competition between companies like sony,yamaha,jbl sound bars, Philips, logitech pioneer etc...

Sounds good and louder

I love your channel, I think you should add jbl extreme 2 on jbl Boombox(extreme boombox)

poor jbl charge 4 😭😭😭

Thats so cool

You can link them right? I wanna link these

Hot tip: you can really put a nice finish onto your 3D prints by suspending them in a container with acetone present. The acetone fumes will react with your 3D prints and give them a smooth finish.

You probably want to try to put the side speakers in reverse polarity, to see if they don't add to the bass.

Can i get the link to buy passive radiator. Please reply

great experiment , unlike us you have 2 units to tinker with

Try porting the one you modded. Itll add more sound and will allow some more low end

you know the dust cap is pressed?

Which one is actually LOUDER? Not best sounding, but louder

Yes because air space is key in an enclosure and the radiator reacts like a ported enclosure- so when you removed them you turned it into a sealed enclosure and divided the air space

original: bass not so pure sound mod: clean sound no basss

The gap was that big in terms of the bass because of the way you connected the speakers, change the wiring and the sound would be cleaner and deeper

dang it, i really hoped you would do low freqeuncy mode nice video tho! :)

Its actually reverse thinking, it hurts a speaker more to under power it then it does overpower it..huge misconception..also this would have worked it you found a way to make the flip drivers out of phase with the main driver..but what it comes down to is not having the wattage distribution the main driver took a certain amount of wattage, and you add two more drivers to that they will be underpowered regardless of them only being 5 watts, just because you have 30watts on a unit, adding drivers doesn't give all of them 30 watts...you would need to separate the 3 drivers into 3 channels...a LCR configuration would be ideal but really just give you surround basically a little soundbar.. awesome video buddy 👍 was fun watching, your mod actually looked really great

have you ever heard about someting called speaker impedance?

This idea is so creative wtf..

Thats a pretty cool idea, JBL Charge with 2.1 virtual surround channel