What the so called "JBL BASS BOOST"/ " LOW FREQUENCY MODE" function actually does. Don't use! 

For the people wondering if this mode is active on their device, watch this video :) ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-mFtnL8bEBRs.html

I tested it on my Xtreme and i sounds like crap, dont get why anyone would want to use their speaker in that mode..

THIS BLEW MY BOOMBOX DON'T USE THIS!! WARNING YOU

Thanks a lot for the clarification, there's a lot of misinformation in RU-vid, I also fell in the trap of believing this was a bass booster option but thankfully I watched your video!

That mode is called Debug mode :P Its used by JBL techs to debug hardware/software etc, and not supposed to be used by end-users. Thanks for the video. Just remember that it is NOT a bass-boost feature..

I stared to use this for a day until I saw this because I wanted to make sure that it wasn’t harming anything. Thanks for the warning.

You saved my life because i use it alot i didint know i was damaging it thx ALOT!!

Awesome tip, bro!!!! Was almost fooled by the so-called "bass boost" mode. Almost did it to my new JBL Xtreme speaker. Thanks again for the heads-up! Keep up the good work!

thanks for making this video 3 years ago I just got a JBL Flip 5 this month and didn’t know about the mode and I was going to use it until I saw this video now I’m not going to use it at all and I’m so glad I clicked on this video, so thank you

I blew my JBL Charge 3 by using this... SIMPLE ADVICE!!!! DO NOT USE IT

aspiebloke's world Many folks think high volume kills speakers....not enough power or too much paired with clipping (distortion) is the real culprit. Great video man!!! I've been in too many cars with "bumpin systems" that really just sound like distorted garbage.

Is it okay to use in-app bass boosters/EQ's as long as this mode isn't turned on? I feel like my jbl pulse 3 has more potential than I've experienced. Especially when comparing to other little speakers. If it would be okay, then how exactly can I prevent ruining my pulse 3?

Cheers for clearing that up. The xtreme is bassy as hell. Not entirely sure why you'd want to push it further anyway. these people need their ears resetting.

Do you think taking the grill makes a difference?Great vid btw!Love your channel m8!

I turned on that mode on my flip 4 once. One of the passive radiators were hitting something inside the speaker. If I haven't have turned it off quickly, I could have broke my speaker!

I burn the battery because I use to much bass

I've seen people on RU-vid doing this and it sounds awful to me. I grew up at the time bass is supposed to be at a certain frequencies, not heard. Subwoofer in the trunk and vibrating your spine baby. I'm for that sound.

How do I know if I've got it enabled or not?

Phew, good that I didn't activate this mode.Thanks.

Great! Keep it up!

The reason some people do it is because they love it how the passive radiators moves like mad, sometimes snapping and flying off

What about using the bass booster at let's say 50% volume, can that still damage the speaker???

Wait...some people claim this mode was pre-function from shipping, and some said they get less bass when they turn on. My question is is there any chance of being turn on b4 shipping? (Sorry fr my bad eng)

You right, bro. My Jbl Charge 3 was blowing up

I believe that, for responsible users, the disabling of the DSP can still be good. First of all, even professional speakers can be broken when you push them beyond distortion - but one can notice when distortion shows up and just lower the volume or lower just the bass. Second, disabling the DSP produces a more accurate sound, which is a shame to miss. And it's very easy to go back too, one can go back and forth.

Nice video! it's funny how it's called a bass boost. Cuz when you do it on a charge 3 it removes the bass as it disables the jbl bass boost signature but sounds less muffled

Can some flip 4 come with low frequency from the start/new

The Mode broke the radiators on my charge 2 plus

Thanks m8 ! I would have tried it if i didnt saw this video ! Btw if i have 100% volume at any bass test video without the "bass mode" will my flip 3 or flip 4 be okay without any damage ?

Thankyou soo much for this advice.. I have charge 2. For my birthday. I reset it . is that good way? No I thinks the sounds is too low?? ... or is that the max sound I hear? Plzz plzz 😕😕

wtf? I own a charge 3 and the base mode was activated out of the box. it sounds great, I used it for 2 years now and still blasts without anny problems. When I used the button combination it turned it off and the box sounds like a can... all my friends with charge3 and extremes have the low freq. mode activated. out of the box. no damages recorded greetings from germany

I have a question why is it when i enable low freaqency mode my speaker has less bass?

Aw. I was going to make a video about this and how absolutely stupid it is. You beat me to it haha! Nice video as well :)

For me it seems to be reversed. Because when I activated this "mode" the bass got worse. And when I deactivated the mode the bass got way better. I even turned the speaker off and on again and the bass was the same. So is it just or me or something?

I have tried to use a little this ,,bass boost" 1 minute and after just this little time my xtreme 2 started to sound crapy in normal mode at a very low sound level. Is there a possibility to repare this??

I've put mine in this mode a few time but I'm not sure if it's on the more or not

I tried IT in my go2 Speaker ..and IT Went Off .immediately..think IT has an overload Protection circuit

Mine is activated by default. When I turn speaker on and Do this combination it turns this Mode off. Red LED and absolutely no Bass. Whats the issue? Also my flip 4 turns of after a few Minutes and show only 1 Red LED. When I connect charger it shows 4 LEDs. It always only charge 4 LEDs. Any ideas? Got another flip 4 which always only show 1 Red LED. But battery lasts how it should crazy shit

I don't know if I have it active or not When I play music on low volume the sound is crap and bad but is that low frequency mode or not?

Thx for this video coz I almost activated it out of curiosity

When i turn off my speaker and turn it on again is the mode still activated or do i have to reaktivate by myselfe ?

My friend says jbl is removing lfm😭 (im a bass tester)

So thanks, I wanna use the low frequency mode but this video and comment helped me Thankss

Also if my charge 4 is in this mode, it wont give the regular power off chime, it just turns off. And always resets to the normal, safe mode at every power off.

Hi! I bought a jbl pulse 3 a month ago and i watched a video on a jbl speaker about the low frequency mode and i tried it on my speaker... The thing is that when i turn it on it reduces the bass instead off increase it... So i think that my speaker is always on that mode... Even if i restart the speaker it starts again whith the mode on... What should i do?

It should be fine if used in a near-field type use, but yes at high volumes it can be be an issue. Also, as a side note... Square waves don't damage the voice coil, they can cause damage to the voice coil former-cone connection. The burned coil problem commonly attributed to being driven with a square wave is really an issue under certain conditions the power section of the amplifier is driven to such a point as to allow dump full rail voltage to the speaker coils. Though that can sometimes present itself as a square wave it can also be straight DC. For low voltage amplifier chips like they use in devices like these even sending the full voltage through the coil for a short duration isn't really a problem. Worst case this would result in about 3 watts being put through the speaker (given a 3.6v battery). SO damage to the speaker is unlikely... Now damage to your will to live from having to listen to that distorted music that's a different issue ; )

Why would they add this mode if it’s bad for the speaker?

I blew my Charge 4 doing this and the woofer and passive ripped :/

I have a jbl essential and i don't know which one is the bass boost because i think its default mode is the bass boost mode. Please tell me the differences

Yess I wondered why it sounded like the speaker was about to burst at low frequency now that i know what it will do I will not use it

How do you know if it is on or off if you can’t tell by the sound. Some people said that turning off the speaker resets it back to normal is that true

I'd love to know who the artist is you're playing? She's dope!! Please advise.. My Shazam didn't pick it up

Just bought my JBL speaker earlier charge four and a mate told me about how you can get a shit ton of bass it doesn’t sound very healthy eh

Uhm please help I just bought a jbl charge 4 and I turned it on for a minute and then I saw a video that It can damage your speaker is it damaged now or how do I notice that anything is broken help I had it on for a minute now I’m worried 😦

Or will a factory reset by pressing down on the play and volume up button disable the low frequency mode

Can I try this mode if I don’t go over 50%?

Am I right that the JBL FLIP 3 dont have this mode? As far as I can see on my Flip 3 there are 2 modes, one with absolutely no bass and the other mode with wich it was shipped.

I have activated the low frequency mode to test and have switched it off again.But as soon as i switch the speaker off and on again, the low frequency mode is enabled again.How can i fix that ? Can anybody help me ?

I bought a charge 4 and i turned low frequency mode on and i turned it off instantly cuz it was trash and the i took it to the park and then 40 minutes in and the speaker started to distort. It would sound normal for an hour then after an hour it would distort again. Can someone please help me with this problem?

So i have a charge 2/+ and ive turned the low freq mode on once and i have no clue if its back to normal again... and i geuinly dont want to damage my 150 euro speaker over this. Could you help me or give me a sort of base line to compare to?

How do you know when it is on or off?

great video

people have too much money! i would never drop my charge3 into water to see if it is really waterproof! I dont evan take it to the badroom when taking a shower cause i know my parents are working hard to buy me that fucking speaker.

I need some help. I dont know if my speaker is in low frequency mode or not how do I know if it is (ive enabled if before but I dont know if I didabled it)

I also told everyone - NEVER EVER USE THIS MODE - on my channel! Crazy how many people use this mode!

But why would they put the feature (low frequency mode) on the jbl’s if we can’t use it ?

Does having bass boost switched on in a device equalizer also damage the speaker? Like at high volumes?

Is there any way to keep the speaker works longer othern than not using the low freq mode??

So I got the JBL boombox and the idiot I am I got confused if its enabled or disabled can someone tell me how to tell the difference or possibly reset the boombox??

I used low feq and now the right speakers coil is making a tiny sound but you bearly hear it

I tried it before seeing this video and i thought it didn't even boost the bass all it does is make it sound bad

What was the point in not showing people? They can just look it up and do it anyways. Seems a bit redundant to say.

How do i turn off Low Frequency mode in my JBL Charge 3...I regret Boosting it!!! Helppp!!!

thanks for the help i blew one side of my jbl charge3 speaker now i got jbl boom box

They did a firmware upgrade for the distortion. Should we still not us the bass boost???

I love the sound my speakers make when they are dying... i dont know why you would use this... better bass at low volumes? anywas great vid

This blew my xtreme 2!!! It got absolutely destroyed whatever you do! Don’t ever fricking use it!!!!!

Thank's for the info..

It damage my JBL flip 4 and I just bought it

What's the dsp? I though that it removed the limiter and the preset equaliser

If I reset my JBL to factory mode does everything go back to normal?

Then why it has low frequency mode? For what?

I had this mode activated since I got this thing for 8+ months, accidentally put this mode on I suppose and now my speaker is blow. Also don't have a receipt so I'm fucked at this point.

Tnx for your advice 👍

Low frequency mode more like high distortion mode

I have a couple questions: How to turn it off? (It removes the bass on my charge 3 btw.) And does it automaticlly turn off when you restart the speaker? Does it damage it bad? I have only do it 1 time and didn’t play too loud music

Never turn on this function. One time Im playing music with bass mode at 100% volume and my jbl flip 4 gets damaged on bass:( never try this

Thank you

Be careful where you can disable your device!

I'm so glad I saw this video dam

I used it 2 times , will it still damage my speaker?

Thank you kind sir

How to diable this mode... Pls help

Is that why it gets distorted when i activate it?

Does switching the speaker off disable this so called mode ???

your awesome more people need to know this it will destroy your speakers

Does Sony's Extra Bass feature damage the speaker?

Its to boost the low frequency's at low volumes, not to be used at full volume that's just stupid , it's like a loudness switch on vintage amplifier , personally I like the boost feature I hate all these limiters and auto dsp .

Who would even like that nasty boost sound? smh

Can someone tell me if i listen music on my jbl charge 3 on max volume can i damage it