What is inside a $700 subwoofer - Bose acoustimass 300 subwoofer disassembly

#bose #acoustimass #soundtouch
What is inside a $700 subwoofer? Bose is very well know for their high tech audio equipment, it is more than just the hardware, it is the software, the acoustics, etc. Let's see.

[@juicinaterexodus3689]

Thanks, Mr. I needed to clean the dust off my sub speaker, and you showed me how to do so by making this video.

[@astafzciba]

Bose sounds good but they should work on their pricing

[@davidlewis8124]

I concur

[@Letsdosomethinguseful]

Agree.

[@MrNikelborg]

Tell that to Sonos and co

[@BabuBooboo-t5u]

People think The price is high the product is good... No other companies can't make product like bose thats why they are so expensive... Took any other brands it's always bigger in size

[@kungfooey6571]

Why anyone would spend $700 on this plastic box just blows my mind. So many powered subs around this price range that are much better! SVS, HSU Research, Rythmik, Outlaw audio..etc to name a few. Thanks for making the vid and showing us all how Bose continues to overcharge for their crap.

[@91DivineAngel]

Sorry but other subs in this pricecategory are not better

[@StartikSounds]

@@91DivineAngel That's a lie. My klipsch spl-150 raped this little Bose. And I play down to 19hz with athority

[@91DivineAngel]

@@StartikSounds lowest hz is not the only point to be good subwoofer.

[@2081calin]

People who buy A Bose product they have no idea what a good sounds it’s all about.

[@91DivineAngel]

@@2081calin good sound is subjektiv and there are many people who changed from even towerspeaker to bose and were happy or change from bose to big homesystems and was disapointed. The biggest problem is that people like you who say bose is shit are often people who never had a bose system. I was one off this people and had many discusions with other, and now after i bought my first bose system to test i was suprised how well it perform

[@tHEuKER]

Thanks for this video. I need to access the inside of the sub, but would rather not open the compartment where the board is. Is it possible to do so without tearing the label out? I removed the 12 side screws but it seemed like that bottom cover wouldn't budge. Did I miss anything? Thanks again!

[@catleaderk]

So much appreciations for this video!! Thank you!

[@Letsdosomethinguseful]

Thank you very much for your comment. Best Regards.

[@kobii45]

one thing i love about the acoustimass 300 is the vibration it produces that really give a immersive experience to movies. i have been watching all the marvel movies on disney + dolby vision and sound, but not all movies vibrate the same. the deep bose sound is there but the same vibration is missing in some movies. ( some movies vibrate way more often then others for example during machine gun fire or some thing slammed to the floor & other movies just vibrate during big explosions only. ?????

[@Letsdosomethinguseful]

That also depends on what is producing the sound. For example, whether you like John Lennon or not, listen to "Starting Over" and you will se a very particular but beautiful bass sound. But if you listen to a rapper, you will see that even that it vibrates, the sound is not that beautiful. I think it has to do with the frequency of the instrument being played, so the same is for the movies, depends on the frequency of the sound. I think. Have you see those sofas chair that have some sort of sub woofer system to make the couch vibrate with the movie?

[@bommareddybrijendrareddy9301]

Request you to kindly consider doing this similar teardown on the older Acoustimass module of the lifestyle system. Thanks.

[@Letsdosomethinguseful]

Kind of did that already, check this video: kzbin.info/www/bejne/gX7UeWWggL1-fMk

[@bommareddybrijendrareddy9301]

@@Letsdosomethinguseful Sorry for replying so late. I just saw it. Thank you 😊

[@Letsdosomethinguseful]

@@bommareddybrijendrareddy9301 No problemo, thank you for watching my videos. regards.

[@Learner4me]

Don’t own one of these but took a demo in a store. Sounds pretty neat and tight. Bose has always been pretty conservative on amplifier power but feeding 300 watts in to a 10 inch driver is pretty sufficient I would say. Comparing Bose’s price / performance with that with other established brands is something which has existed from the day I guess Bose came out with their first product. But Bose follows a totally different design philosophy I guess in which elegance, portability and audio performance is given equal preference.

[@Letsdosomethinguseful]

First time I hear a Bose system was some acoustimass modules with 5 satellite speaker more than 20 years ago in Fry's electronics, it was an amazing presentation.

[@Countrylovecocoa]

Bose Bass Module 700 dont have 300 Watts he have 180 Watts

[@vijayshankar0080]

Is it sounds good as there is no wood?

[@Nofusscomputers]

Hello mate. How did you remove that bottom alloy beat sync Have removed all screws but it won't budge Any ideas , was it glued ? Anh

[@AK-ky3ou]

Do you think this is basically the bass module 700? Looks the same

[@intp-developer]

3:24 What is it(green small board) at the side of sound tube?

[@sandeepc3507]

Yes Mr Bose is from India, from my city Kolkata.The quality of product is quite good with crystal sound.

[@sheikhsaleem7638]

Bose is American company

[@sudheer7595]

😂

[@Letsdosomethinguseful]

Dr. Bose is from India, but all his research was made in MIT (An American University) and left the company to the MIT. regards.

[@FREESPEECHMATTERS_1]

I hope you still use YT cause i need to ask something. My bose bass module 700 makes popping noise. How the hell do I stop that?

[@nixmix3544]

Subscribed! Thank You sir, very nice video! 🙏👏🏻

[@caleythomson6583]

That's a really beefy magnate on that speaker. I see nose is really starting to improve there quality. And the waveguide technology, very nice!

[@Letsdosomethinguseful]

That's right, I see they are implementing some new technologies into their systems and they have improved a lot the class D systems.

[@lunchie80]

Magnets are cheap. Even a $50 woofer can have a magnet that big. The entire motor structure can be either garbage or good and the magnet has little influence on that. A well designed motor and magnetic gap with a medium magnet is better than a poor design with big magnet. Plus magnet size doesn't mean it's a strong magnet at all.

[@mhp_loudspeakers3768]

Fun fact the wave guide is only a kind of an transmission line so it is not very special.

[@Acoustic_Theory]

@@mhp_loudspeakers3768 Actually in this subwoofer it's a reflex port. It is folded, and it will have a quarter-wavelength mode to its operation (as all port pipes do; as ports required by a certain design are made longer, they acquire an "organ-pipe" resonant mode which can be used to advantage if you know it will be there) but when you take a port and fold it, the straight sections behave as air masses that "add together" to produce the same air mass as a longer straight port, and with a cabinet that has a large chamber like that, it is definitely operating as a mass-spring system to have a tuned resonance of its own. Transmission line systems typically minimize the amount of volume behind the driver that is not functioning as part of the resonant "line", while vented boxes have a definite chamber volume behind the driver, and the total air volume of the port is a lot less than the volume of the chamber. I've designed both transmission lines and vented enclosures with folded ports, and their mechanisms of action are quite different.

[@Acoustic_Theory]

It is a fine looking driver from Bose, finally. I would judge that the voice coil is either 2" or 2.5" diameter, which is plenty big for a home subwoofer. (And the overall driver diameter is 10".)

[@lorenzotesta7794]

I saw the video because my auctimass 300 stopped working just few days ago... i bought the sub 2 years ago. No light and no sound it is dead i discovered that it is a very frequent probelm i am asking for the waranty but if you know how to fix that problem you will help me a lot Sorry for my stupid english end thanks tou

[@billyrayy]

I have the same problem!!!! I have the lifestyle 650 and the Acustamass 300 has no light or power, I’ve tried different power cords and outlets. Nothing works. It’s dead. I don’t know if it’s a fuse or a switch but as common as this problem is, there’s gotta be a simple solution.. I just don’t know what it is yet.

[@Letsdosomethinguseful]

Your English is very good, I have the same video here in Spanish in case you are native Spanish speaker: kzbin.info/www/bejne/d567pnp6eaemqZY

[@Letsdosomethinguseful]

When I opened mine, I did not found any fuse. Could be the filter capacitors en the power supply? Mine is working but I have received a lot of comments of units not working. Also, I noted that there are 3 mosfets or transistors just besides the the audio section that requires heat dissipation, may be that's were the problem is since those can burn very easily because of extreme heat. Good Luck.

[@KamranHaider]

Will you be able to put it back together? ☺️🙏. Thanks for a very interesting upload

[@Letsdosomethinguseful]

Yes I can and I did put back together, but at high volume, there is a vibrating sound, I think something is loose at the glass. Regards.

[@chinyanyie]

Any bose module 500 inside video?

[@Letsdosomethinguseful]

Not by me, already sped too much on that sounder and subwoofer :(

[@SaurabhDhall]

wow couldn't have imagined it had Class D amp. thanks for showing.

[@michaelkopec.5814]

so is it good or bad ?

[@SaurabhDhall]

@@michaelkopec.5814 not bad, class d are quite efficient but not expensive and bose is selling it for a premium price which is not a ideal.

[@michaelkopec.5814]

@@SaurabhDhall Thank you.

[@Letsdosomethinguseful]

U're welcome, thanks for comenting.

[@AM-in5cf]

Yes you are the first one to do a tear down. Pretty cool but driver doesn’t look very satisfying. Could you maybe do a video where we can also see the driver. But yeah btw nice video

[@Letsdosomethinguseful]

I will try to show more details in pictures in my next video. Thank you very much for watching.

[@ronedwards8239]

Every manufacture is now using class D amplifiers. Bose has some cool tech going on in that folded bass port, called Quiet Port.

[@Letsdosomethinguseful]

@@ronedwards8239 Yes, I have a Behringer PMH3000 powered console and it is using 2 class D amps. I am an amateur musician and I really don't care about the difference between las AB amps and Class D. I really think the Bose soundtouch 300 (that came with this subwoofer) sounds much much better than a lot of Class AB receivers.. Thank you for your comment.

[@BabuBooboo-t5u]

​@@Letsdosomethinguseful that because bose know how human eardrum perceive sound ...

[@seanmikhaels]

Great video , Not sure why the dislikes

[@Letsdosomethinguseful]

Sadly, There are always dislikes even in the best videos.. Thank you for your comment.

[@erniebaraschas3445]

Hey man, good video I have a question about the Bass, I found you video as I was looking for answers of why my Bass just stopped working, do you have any idea about trouble shooting this Bass?

[@Letsdosomethinguseful]

You know, I had been asked that before, I'm not really surest seems like it is a defect on these subwoofers. I could not find a fuse or something like that when I opened mine. There is a vlinear voltage regulator I think for 5 volts, check that one to have an output of 5 volts, is the only thing I can think of. Good luck.

[@billyrayy]

Does it have a fuse? My AM300 suddenly isn’t displaying any led status lights. I’ve switched power cables and used different outlets. I’m not sure what to do. Bose want almost $200 for repair. Its the same bass speaker as seen in this video

[@Letsdosomethinguseful]

No, it does not have a fuse. I noted there is a 5 volts regulator, check if it has 5 volts output, if not, replace the regulator. I noted that fails for many units. Also, the cooling dissipation is not very good so it has to be inproved. Good Luck.

[@tonyaudiotest]

Subwoofer acoustimass 300 better than Subwoofer module acoustimass 10?? More bass? More power?

[@MarcoGiugiaro83]

Io preferisco il buono e vecchio Acoustimass 10 perché è sicuro che sfrutta un passabanda di ottavo ordine che nel 1990 fu una genialata assoluta; nessun altro subwoofer attuale suona come un Acoustimass 10 ossia delle medesime dimensioni.

[@vincentlarcher6309]

bonjour merci pour ta video une question pensez vous que le Bluetooth v4.1 de la barre de sons sound barre 300 soit codé de manière a ce qu'on ne puisse pas recuperer ce signal pour le dirigé vers un récepteur Bluetooth v4.1 de manière a faire fonctionner un sub woofer autres que un d'origine bose merci pour vos infos

[@ancataut7891]

Does anyone know what is its frequency range? I din not find anywhere this piece of information.

[@91DivineAngel]

It gets effectly low between 28hz and 25hz

[@jakemilitano2453]

Bose classifies this information sadly

[@91DivineAngel]

@@jakemilitano2453 bose is for normal customer how doesn t know what this mean thats because they dont give this information. Its build in theyer marceting. But i have a umik and rew and measure it. Tha bass starts round about 20hz on 25hz its strong enough that you noticed it and it goes up to round about 300hz after 300hz it roll up to 400hz.

[@adamwest3637]

Thanks for the video! Now I don’t have to do it myself haha

[@Letsdosomethinguseful]

lol u're welcome.

[@91rickstar]

+Let’s do something what controls the Acoustimass in put and what controls the wireless signal is it Bluetooth wifi Is there a way to trick the sound bar to get bass output from the sound bar with out a Bose Bass Module I have a powered subwoofer that is not a Bose bass module 300/500/700 basically I want to use my own powered subwoofer I’ve gotten roughly 30-40 seconds of output from sound bar but then the sound bar turns the bass/Acoustimass output off

[@Letsdosomethinguseful]

the output of the "Acostimass" port in the sounder is a normal 3.5mm stereo jack, I guess you can check if you can connect a 3.5mm to RCA cable and connect it to another sub. Not sure if it will work, I have not test it yet.

[@chinyanyie]

@@Letsdosomethinguseful it doesn't work

[@Letsdosomethinguseful]

@@chinyanyie To bad, I was hoping we can attach some other sub since I have received 2 or 3 reports of subwoofers not working anymore.

[@chinyanyie]

@@Letsdosomethinguseful wait for your good news!

[@connorjohnson4402]

they activiely have designed it to not work with anything else. propriety software of some kind congratz on your bose!

[@Mudasar66]

I have this same acoustimass 300 unfortunately it skips beats. Any solution please

[@Letsdosomethinguseful]

What do you mean? does it turn off when you rise the volumen too much? because mine started to do that after this video.

[@dalj88]

My module stopped working and i'm thinking about taking mine apart to see what's up. Since you already took yours apart could you tell me kind of what to look for. No status light no sound working. Thanks

[@Letsdosomethinguseful]

Look for the AC plug, check continuity between the jack and the tip of the cable (you will have to open it in order to check that). That will be my first thing to check.

[@nickowen1070]

Hi, my acoustimax 300 has stopped working and status light not working 😢 I’ve checked different cords and power outlets but nothing. Do you have any ideas of an easy fix? Ive not opened it up as yet but is there a fast blow fuse on the board at all? Thanks

[@Letsdosomethinguseful]

No, I didn't see any fuse in the board. If it still under warranty, do not attempt to open it. I did see 2 analog voltage regulators and a SMPS, a class D amplifier, like 4 relays and several inductors. I do not see what could have failed. If you ope it, look for blown capacitors, that is the most frequent cause. Also, try to connect it to the soundbar and perform a force firmware update and see if the soundbar can reset the subwoofer.

[@JP-yl6on]

Hello, do you think one could replace the subwoofer with a different brand 10” if their Bose 700 subwoofer is blown?

[@Letsdosomethinguseful]

Yes of course. Just check that the new subwoofer is at least 300 watts RMS. Regards.

[@remus097]

I think you could. But you should make sure to match Ohms. You could also use less powerfull subwoofer speaker, just don’t use max volume, only go as far as possible until sound gets distorted, than stop.

[@syedbafihossainsyed4682]

I Appreciate Your Video Can you Help me out Las 2Month My Bose Bass Module 700 Is not Connected My Bose Soundbar Las 3years It's Perfectly Work.

[@dannysubohms530]

Would you recommend this over a Cerwin Vega CVE-18s 18" 1000 Watt Powered Portable Subwoofer ? For movie and home use?

[@Letsdosomethinguseful]

Depends, Cerwin Vega is way more powerful but it is designed more for PA systems than home use. If you put this 300 watts Bose subwoofer in a very big room, like a church or warehouse or open space and you compare it to a Mackie or Cerwin Vega with the same power, you will notice that the marcie or CV are ways better. But for close and small rooms, Bose is better because it is designed to bounce the sound in walls and cancel overlapping frequencies and sounds, in other works, Bose home systems are much better appreciate in lower volume and that is how it is designed, to provided quality over quantity. I have this subwoofer because it is the only one I can use with my Bose Soundtouch 300 sound bar, but of course, if I had the option to use other subwoofer, I could have a Mackie or CV or JBL nd that way I can use it in the patio too.

[@dannysubohms530]

@@Letsdosomethinguseful thank you for your time I appreciate the response and I think I'll stick to a full bose experience after for the living room after all.

[@Letsdosomethinguseful]

@@dannysubohms530 yeah, same here.

TÔI ĐÃ SỬ DỤNG 2018

[@agarwalsmeet91]

Sir can you pls say that which Bluetooth module is used in there?

[@Letsdosomethinguseful]

It doesn't use Bluethoot, it uses a Radio Frequency module.It says "Model 420128RM". Regards.

[@chinyanyie]

I don't think they will use the Bluetooth to connect because it might cause delay.

[@Letsdosomethinguseful]

@@chinyanyie correct.

[@kay3179]

How can we connect any other base with bose sb 500 bcoz i spend too much on the soundbar 500 and i dont wanna spend more on bassmodule. Can i connect any active woofer or bass with this soundbar

[@Letsdosomethinguseful]

Not that I 'm aware of. I saw an "Acoustimass" port in the soundbar and it has a 1/4 jack stereo, but haven't try it yet. Amy be you can try that jack and see if it outputs audio.

[@mcgreedy01]

Is that 400 watts RMS or is that peak?

[@Letsdosomethinguseful]

it is RMS not dynamic, No idea how much it will be in dynamic mode. Regards.

[@mcgreedy01]

@@Letsdosomethinguseful 400 watts RMS is pretty powerful actually. Thanks for the info.

[@Letsdosomethinguseful]

@@mcgreedy01 Yes, does not sound like that much, pero it does fells like that because I'm in the bed watching a movie and the whole bed shakes the you see a spaceship or the Hardon colider.

[@Swenser]

Have you ever repaired lifestyle 5 powered subby. Stuck on max volume?

[@Letsdosomethinguseful]

No, I have not, does it has a variable resistor for th evolume? did you try cleaning it up, or replacing it?

[@randomweirdyoutubechannel8955]

I think I'll go for a car sub with a decent amplifier

[@mhp_loudspeakers3768]

But if you want ir for home build a other enclosure.

[@piratetongpo2001]

Same i will go for car subwoofer

[@faidonk]

Car subwoofers tend to have a "loose" sound and unbalanced sound response which is terrible for home audio and on top of that, the fact that they are so big ruins the balanced sound and you end up with bass overpowering everything else in your music. That's why they are called car subwoofers and not hi-fi or home cinema subwoofers.

[@SirShrimpey]

My unit keeps turning off for a brief moment and then reconnects after 10-20 seconds. Any idea what might be the cause? I think the longer it is on, the more frequent are the restarts. Could it be an overheating problem? No signs of blown components on board.

[@Letsdosomethinguseful]

When I took it apart, I did see the heat management is very poor on this unit, I had to add some more aluminium y thermal paste. Also, check the distance with the soundbar, bring it closer and see if it fits the issue.

[@durst99]

Same issue here, did you find a solution?

[@SirShrimpey]

@@durst99 No luck. Tried everything that didn't require messing with electronics. That is repositioning, using different cables, connecting via BT, moving other equipment away. Nothing works.

[@durst99]

@@SirShrimpey yea.. same here. Going to send it to Bose this week (repair service for 110€ :/ )

[@SirShrimpey]

@@durst99 If they charge then maybe at least they'll fix that. I sent it on my electronics shop extended warranty to their repair shop and I don't think they even opened the box, just sent it right back saying "we couldn't reproduce the issue" xD At least that tought me to never, ever opt for any kind of "extended" warranty when buying electronics as it is just a scam in most cases.

[@audioteckltd5845]

Every bose products that I opened it seems biased used 10% of the cost for parts, this also fits the bill.

[@Letsdosomethinguseful]

Correct.

[@samuelsalins8309]

Great job.🔊👌

[@Letsdosomethinguseful]

Thank you very much!

[@Countrylovecocoa]

the price of the subwoofer is justified or too expensive?

[@Letsdosomethinguseful]

I think it is too expensive. You won't believe this but I had a DELL-ALtech Leasing ADA995 subwoofer before and I think that unit sounds a lot better and more powerful. I leave you the link to the video of that subwoofer: kzbin.info/www/bejne/pH2Qn56ldradq6s

[@Countrylovecocoa]

@@Letsdosomethinguseful how deep does bose play? I wrote to bose on Facebook, they said 20hz-200hz

[@Letsdosomethinguseful]

@@Countrylovecocoa I have no idea, I go more like the taste of sound more than the specs.

[@ismarsetiadi3514]

got the same problem, light indicator is off and nothing coming out from this Bose. It just dead.

[@lennylechman7592]

I have had the soundtouch 300 and subwoofer since Oct. 2018. (warranty expired) It is placed in an area which I don't really use that often. Then suddenly, the other day the subwoofer did not turn on. It has nothing to do with the electrical outlet therefore I am puzzled. Called Bose Support and they informed me that I have to send it somewhere to be diagnosed and the charge is about 175 $. Any suggestions ??

[@MrRahulnavinch]

same for me... Not sure if I can do something with the repair

[@Letsdosomethinguseful]

Did you try connecting it to your computer via USB cable? see if the computer can find it (of course, the sound bar has to be connected to the AC outlet). Download the soudtouch application and connect the soundbar and check if the computer detects it (even if there is no lighted leds), if true, upgrade the firmware. Good Luck.

[@hfe1833]

If you can make a drawing how the propogation pipe from subwoofer gladly appreciated

[@Letsdosomethinguseful]

I will try to disassemble it again and publish the diagram.

[@jorgeeli637]

hola brother, de casualidad me hice de un subwoffer bose acoustimass 500, pero no es compatible con mi barra Bose Solo TV Speker, solo con las Soundbar 500, 700 y la SoundTouch 300, abra alguna manera de poderlas conectarlas o poder usar el subwoffer de alguna forma? ahorita lo tengo de adorno porque no lo puedo usar jaja gracias!

[@Letsdosomethinguseful]

El mio tiene una entrada que dice "Acoustimass in" me imagino que ha de ser para conectarlo via cable de 1/4 estereo, no estoy seguro, el tuyo tiene esa entrada?

[@jorgeeli637]

@@Letsdosomethinguseful si lo tiene, una entrada de 3.5mm para audio. Le he conectado un celular, la TV, y no hace nada. Además como no tiene ningún botón solo el de on/off.. No hay forma de poder hacer algo con el. Me parece que cuando se parea a la barra de sonido compatible entonces desde allí se puede ajustar volumen etc. Por eso quería ver si hay una opción de usarlo sin la barra

[@Letsdosomethinguseful]

@@jorgeeli637 El volumen del subwoofer si lo puedes ajustar desde el control de la barra. Precionas la tecla "Bass" y la dejas precionada, se encendar un led blanco en la barra, despues subes el sonido y ls leds en la barra se encenderan indicando el volumen.

[@robertgonzalez7351]

Yo sólo tengo una observación. Almenos que sea un módulo de bajo que no usas amenudo, a mi me dio lastima como abriste el bajo sin ponerlo sobre una franela o una tela aterciopelada, por aquello de que el vidrio que cubre el módulo termina por verse muy rayado Cuando lo vuelves a armar. Sólo era eso ya que yo tengo ese módulo de bajo Acustimass,serie 300 Y me dio lastima ver como lo hiciste al ahí se va.. Digo críticamente hablando te verías más profesional... Beto.

[@Letsdosomethinguseful]

@@robertgonzalez7351 Tienes mucha razon Beto, y si se rayo un poco el vidrio, por alli vi un video de como quitar rayas a los vidrios usando oxido de cirio, voy a intentarlo. Saludos y gracias por tu comentario.

[@sauravbaidya4012]

Suparb! I have one and really wanted to know what is inside. Thanks😀

[@Letsdosomethinguseful]

Glad it was helpful!

[@chinyanyie]

Forget to ask,so is this a 300watt or a 400watt subwoofer?woofer impedance?

[@Letsdosomethinguseful]

The Audio chip is for 400 Watts, but bose some times limits the power supply to allow work margin, meaning, not to work the chips at top specs all the time. But definitively it is pulling more than 300 Watts. The speaker is 2ohms.

[@chinyanyie]

@@Letsdosomethinguseful nice,then it should be around near 400,as 2ohm can make the chip run at full power.

[@connorjohnson4402]

@@Letsdosomethinguseful The specs are 300w or 400w max power at 10% thd meaning peak output probably running 150w rms

[@Letsdosomethinguseful]

@@connorjohnson4402 U're right, I forgot that they put the max power at 10% and no body listen to music with that much distortion. thanks for your comment.

[@brightyeboah1679]

The status light on my acoustimass 300 no longer lights up. Any help

[@Letsdosomethinguseful]

Another user has reported the same. I looked at the board and there is no fuse in there, at least not a typical one. some relays and capacitors. Try to force an upgrade of the soudbar with the subwoofer connected to see if the soudbar can force the upgrade of the subwoofer. Good luck.

[@Mifodiy35]

Apparently we're not the only guys with this issue...googling it brings hundreds of results. Did you find any solution to it? Or you too having a 700$ worth piece of junk just standing in the living room collecting dust?

[@Mifodiy35]

@@Letsdosomethinguseful I don't think it's possible to upgrade the software of unpowered unit... Any other ideas? Thanks.

[@Letsdosomethinguseful]

@@Mifodiy35 No ideas, Bose are very apprehensive of their information. We have to wait years for they to release diagrams or something.

[@niconquaijtaal38]

I have the same acoustimass 300 issue, no live annymore. Just 3 years old, i do not believe THE BOSE afford this china crap..bad MOSFET types are common within China products. Complex repair because of computer control., it sucks!

[@tomconnects7673]

Show us the magnet size

[@Letsdosomethinguseful]

Ohh sorry, I forgot to measure it, it is about 7 inches. But Let me check if I find more accurate info since I am not planning to disassemble it again :(

[@chinyanyie]

@@Letsdosomethinguseful show us all of the woofer,include suspension please.

[@Letsdosomethinguseful]

@@chinyanyie I'm sorry, I will try to get that info from some one else because I am afraid that If I disassembly it again I will broke something. I will post another video with the details.

[@chinyanyie]

@@Letsdosomethinguseful haha,it won't if you dissemble it properly,believe in yourself

[@joecox9958]

thanks! but if you have a little knowledge of speaker box, you would show us the structure how sound transferred or its transfer channel, that is the key point. I didn't see any absorb material, not sure it is closed box, wave guide or phase reflex.

[@Letsdosomethinguseful]

I am sorry I did not show that much detail, for me this subwoofer cost me a lot of money and I already disassembled a 700 dollars bar and I barely put together so I was very afraid of not being able to put this one tighter again (like Humpty Dumpty). I have received report that this kind of sub gives a lo of problems after 2 years of use, if I get those issues with mine, I will definitively upload another vide with a lot more detail. Regards and thank you for your comment.

[@remus097]

How’s the sub, still kicking? I watched a lot of tutorials, repairing this modules, basically after about 2 years, a 0.50 $ diode gives up and needs replacing, and that’s it.

[@djre-mixchery7791]

hi u can tell me how to open bose 100 i want change speaker driver plz a video if u have

[@Letsdosomethinguseful]

I'm sorry but I have no idea on how to open it, I never owned one. Hope some one of the viewers see this and respond. Regards.

[@roybatty-]

What's inside a $700 Bose subwoofer? About $200 worth of components.

[@hfe1833]

What is the input voltage of the subwoofer??

[@Letsdosomethinguseful]

120 volts a/c. The internal audio chip I think it uses 50 volts.

[@pronoyroy1823]

Do it on jbl 5.1 sound bar.

[@Letsdosomethinguseful]

I wish I can buy one of those, I really like JBL, but I already spend 5 years of sound systems budget in this system. :(

[@theumeshkumar09]

Did you open the vent ? What was inside the vent (tube). How does it work ? Superficially this time around the Bose hasnot created some intricate designs with multiple chambers. The box looks pretty much like a regular vented subwoofer which is pretty unexpected of the Bose. The Bose is becoming conventional !!!!!!!

[@Letsdosomethinguseful]

No, I did not open the vent. I did see some unusual ports that turned out to be some aluminum grills very fine that looks like a sheet of metal, not sure if it is some kind of filter.

[@azmiamin111]

Let's do something That is the quietport Technology to reduce distortion or port chuffing

[@Letsdosomethinguseful]

@@azmiamin111 Thank you!

[@vishnuvinod1896]

Aperiodic filter it is

[@TITANSalmuhib]

Hello I need a new board please can you help me get it

[@Letsdosomethinguseful]

Sorry, I can't. I don't work at Bose, I just really like their products. Good Luck.

[@andychang1488]

Thank you for sharing!

[@Letsdosomethinguseful]

My pleasure!

[@linandy1]

Its an over priced plastic piece of junk 😊 just like all Bose stuff since the 90s and up.

[@adrianmarin5101]

The guy that invent Bose is actually from Bangladesh , Dr. Amar Bose, nice video !

[@Letsdosomethinguseful]

Correct, and he left his company to MIT where he conducted all his research. Thank you for your comment.

[@arieln8203]

plastic casing?

[@Letsdosomethinguseful]

it is composite material, sames as the new Toyota Tacoma's bed. It is stronger than steel and lighter. Regards,

[@RolexDSSD]

Great video

[@Letsdosomethinguseful]

Thank you very much!

[@ChadFreeman757]

I have this exact system!

[@dvg716]

Please tell me this guy is being sarcastic about the gloves...

[@christophervtec762]

Ikr rubber and clear gloves are universal left right lol

[@Acoustic_Theory]

I think so...

[@91rickstar]

Would be nice if we could actually see the schematic I cannot see the the words on it

[@91rickstar]

Where dose the 3.5mm acustimsss or audio cable connects to and where dose the trace lead too on the pcb

[@Letsdosomethinguseful]

Here is the schematic for PDF download: www.ti.com/lit/ds/symlink/tas5631b.pdf

[@jerinekunjachan6226]

What that sub in connection is that pre amp input or high power input.I wonder if I can use this sub for my yamaha receiver..tnx

[@Letsdosomethinguseful]

It should be low or precut input, but I already try it with other receivers and didn't get any sound.

[@OishikSarkargplus]

The guy who made Bose is Indian but unfortunately Bose products are so expensive that most of the Indians can't afford it.

[@Letsdosomethinguseful]

Very good point.

[@ElderMike]

Dr Amar Bose was not an Indian, he was born and raised in America to a White mom and an Indian father. He had an Indian heritage but he was actually American.

[@Ezees23]

We call that BPC - meaning: Black Plastic Crap, LOL. This design is called a "transmission line" or a labyrinth design. They generally reproduce great, detailed bass - but at the size of this "subwoofer" (said VERY loosely) and the small area and length of the labyrinth - you probably won't get any bass below about ~40Hz. What that means is that you'll be totally missing out on most of the HT, sub-bass frequencies below the cutoff - frequencies that would be easily reachable with other, much more inexpensive true subwoofers from HSU, Rhythmik, SVS, and even PE/Dayton Audio kits. Bose is still overpriced black plastic crap, IMO....

[@Noah-Lach]

Thankfully they’ve ditched the awful 5.5” Acoustimass “bass module” in favour of an actual subwoofer. But the plastic cabinet looks horribly cheap and flimsy.

[@AM-in5cf]

It may look cheap but it’s surprisingly strong. They have a nice bracing inside wich makes it pretty strong for a plastic cabinet. And the 10 inch woofer is also a nice upgrade after all these years. Hope they will bring out a sub with dual woofer

[@Letsdosomethinguseful]

@@AM-in5cf That's Right, all the base is aluminium and the glass is form Italy and a bunch o other nice features. I have 3 of the other old acoustimass modules and to be honest, this one does looks and sounds more like an actual power subwoofer and not just like a silence discrete subwoofer.Also, this is the most powerful amplifier Bose has put in a home device.

[@3limin4torZockt]

@@AM-in5cf Still, for that Price it should be made out of Wood.

[@thirumalkumaran]

@@3limin4torZockt No.. You cannot get consistency and life from MDF compared to the plastic... its not about price! Ever had a dinner in a fancy restaurant?

[@3limin4torZockt]

@@thirumalkumaran There are so much better subwoofers for that price.. Stop defending everything a big company makes..

[@Fra96]

Bass test inside this sub! kzbin.info/www/bejne/iJeUYaOubJKWjrc

[@davidlevasseur7589]

Great complete exploded 🎉

[@andyguyuk1]

Hope u got a 50/% discount on the gloves ;)

[@aw3s0m3-i]

wow

[@frecadore86]

I can not believe that it have a plastic case!

[@Letsdosomethinguseful]

It is composite material... but sadly , still plastic :( Thank you for your comment.

[@blk77sunshn]

Wow, $700 for a PLASTIC BOX!!! I would expect more than that. You can get a MUCH BETTER sub than that for $700.

[@Letsdosomethinguseful]

You are wrong... It is not just a plastic box... it has a glass top :) Yeah, that is a lot of money for a small sub.

[@3limin4torZockt]

@alak58 Have you ever seen a Klipsch subwoofer? Made out of wood for much cheaper price.

[@3limin4torZockt]

@alak58 Maybe i never had a Bose Subwoofer. Still i dont like plastic speakers..

[@3limin4torZockt]

@alak58 Im Happy with my Klipsch speakers, they are made out of wood, its a much more premium feel than a "plastic box with a glass cover" . And it sounds awesome.

[@3limin4torZockt]

@alak58 For the same price you wont get this mich technology from klipsch right, but better sound. And in my opinion bettet looks but thats just my opinion.

[@loudspeakertestsmorebyaida3804]

Looks well built actually. Audiophiles don’t get the fact. I think these subwoofers are greet and will still think they’re great if I am an audiophile

[@Letsdosomethinguseful]

Agree, I have heard a lot that it is made of plastic, but in fact, it is composite material, sames as the new Toyota Tacoma's bed. It is stronger than steel and lighter. People expect big loud sound coming form their speakers, bbut Bose is more into the high quality sound more than the loud sound. Than you for your comment. Regards.

[@markzachenberg2797]

Wow there is nothing redeeming about this teardown. The quality is just awful. But Bose has a following willing to pay top dollar for the brand.

[@anthonyjosephs5565]

What about lifestyle 650 Home theater

[@Letsdosomethinguseful]

I don't have one to review it :(

[@billyrayy]

I have one, and my bass unit just went out.. same one as shown in video. When the system is functioning, it sounds amazing but the bass unit that’s dead now is killing me and the repair fee is a percentage of the cost to replace.

[@MS-xt8ue]

are you kidding me?, my Canton 12 inch sub (30 years old) blows this thing into oblivion...Ridiculous.

[@DJSV25]

Yeah but bose has plastic tunnel delay thingy inside.

[@Letsdosomethinguseful]

yep :)

[@chinyanyie]

Hmmmm...if someone can hack or modify the receiver so they can use with every other amplifier subwoofer output.would be better alot

[@Letsdosomethinguseful]

That would be nice. I will try it one day.

[@chinyanyie]

@@Letsdosomethinguseful Nice,will wait for your good news.

[@adamthomas1348]

too bad you couldnt like flip your rubber glove over to get your left gloves but thats what i would of done lol

[@Letsdosomethinguseful]

lol, thank you for your comment. Regards.

[@adamthomas1348]

@@Letsdosomethinguseful thanks for replying

[@Jucyo]

What about the bose 500 bass module? Haha

[@Letsdosomethinguseful]

I know it is better than this one, but I don;'t have one, I already spend way too much in the soundbar and the acoustimass 300 module. Are you planning to buy a Bose soundbar and subwoofer?

[@91DivineAngel]

@@Letsdosomethinguseful the bose 500 better than the 300/700? Please search again the ac 500 is a step down

[@ssg5795]

@@Letsdosomethinguseful 500 is smaller

[@Letsdosomethinguseful]

@@ssg5795 I didn't know that, glad you replied with this info because I am getting a lot of questions regarding the 500. Thanks and Regards.

[@ssg5795]

@@Letsdosomethinguseful Bose is doing crazy marketing, 300=700and 300,700>500 I own a sound touch 30 but after some time I felt that there is so much more to be desired From sound system with that price , so it was my first and last Bose speaker , it sounds good with decent features but the price is not justified

[@lianakrieger8773]

does the jbl Soundbar 3.1 have more bass than the bose?

[@Letsdosomethinguseful]

No, It does not, the sub is smaller (even that the box looks bigger) and also. the amplifier in the new Bose is more powerful than the one in the JBL. But the JBL can fill any average living room and I'm sure you won't need it to take it to the max so regularly. Very few times and for a very few second I had to rise the modulen of the soundbar more than 50%.

[@lianakrieger8773]

@@Letsdosomethinguseful jbl soundbar 3.1 has more bass the bose bassmodule 700 plays deeper my dad has the bassmodule 700 and bose soundbar 700 and i have the jbl soundbar 3.1 the jbl has more bass which jbl vibrates more very boomy

[@lianakrieger8773]

@@Letsdosomethinguseful JBL 3.1 Subwoofer has 300 Watt Bose Bassmodule 700 has 180 watt

[@lianakrieger8773]

@@Letsdosomethinguseful 650 euro for a subwoofer that does not even have much bass hahahahaha Bose ist very shit

[@fabianplanz924]

Liana Krieger at least the Bose plays deep an clean but the JBL sounds like a 30 bucks sub from wish xD

[@classicgalactica5879]

$700.00 for a subwoofer that can't do infrasonic bass? What a rip off. My SVS SB2000 absolutely destroys it for only about $100.00 more.

[@Abhitips224]

Bro u do know u can’t hear infrasonic right lol

[@Countrylovecocoa]

Why don't you complain to Sonos Sub? The subwoofer costs 750 euros and is made of high-gloss plastic

[@snowingsniper]

$700 for that cheap plastic box? Lol my monolith 15 was $1200 when I bought it and it is 1000 watt rms.it will literally rip that thing apart

[@Letsdosomethinguseful]

Not only that, if you listen to it, you can barely distinguish if the sound comes form the bar or the sub unit. I like the sound of it a lot, but I agree there are more powerful units for much cheaper. Thank you for your comment.

[@Countrylovecocoa]

Why don't you complain to Sonos Sub? The subwoofer costs 750 euros and is made of high-gloss plastic

[@bantorio6525]

... thanks ... !!!

[@ssg5795]

That looks ok for a 400 dollar sub but not 600 or 700

[@Letsdosomethinguseful]

I kind of agree with you, I brought a $780 dollars Mackie subwoofer and it was way bigger and powerful.

[@ssg5795]

Although the voice coil is decent sized with a hefty magnet but the cone looks cheap AF

[@ssg5795]

For that price

[@ssg5795]

Never seen in reality though , u know better , thx waited for a long time to peek in and see the sub

[@Letsdosomethinguseful]

@@ssg5795 u're welcome

[@3limin4torZockt]

Why is this 700 Dollar Subwoofer made out of Plastic? Thats a no go!

[@Sc2God724]

Its heavy duty plastic and still have very low resonance better then most woods until you get into the high end stuff

[@3limin4torZockt]

@@Sc2God724 sure not better than MDF

[@Sc2God724]

@@3limin4torZockt my point exactly MDF isnt that strong still really cheap cost the same as plastic you need to use like oak wood real wood is the best but most companies wont do that and if they use real wood they will put an extreme price tag on it

[@3limin4torZockt]

@@Sc2God724 But its a matter of thickness not only material.

[@Sc2God724]

@@3limin4torZockt even tho it's still only a medium hard slightly better then ply wood you could have it crazy thick but wont be as good as half as thick oak wood and same with plastic oak wood would be better half as thick

[@jaekamacho1416]

Ohh man its all plastic?!

[@snowingsniper]

Cheap as fuck right.a plastic enclosure you bet it sounds like absolute garbage

[@Letsdosomethinguseful]

In fact, it is composite material, same as used in Toyota Tacomas' bed.. but yes, at the end, it is plastic.

[@Pain-ib7ot]

Probably took them 20 bucks to make..

[@jh3247]

Please tell me you were sarcastic about the gloves

[@Letsdosomethinguseful]

But of course... I think...

[@jailanimajid6115]

Bose,and again plastic.

[@Letsdosomethinguseful]

and some glass :) Thank you for commenting.

[@unknownentity835]

I dont like subwoofers from plastic box. Wood is wood !!

[@Letsdosomethinguseful]

This is not exactly plastic, it is composite material, like the Tacoma's bed.. but agree, it is not wood.

[@aladdin-sad-1234]

Bose design's very typically 🤔🤪

[@shakiltushan6990]

plastic made cabinet like seriously

[@Letsdosomethinguseful]

Is more composite material like in the new Tacoma's bed. But yes, it is not wood. Regards.

[@ThatsWhatSheSaid84]

$700 for a plastic sub that probably has an f3 of 40hz lololol for that price get a real subwoofer, SVS, HSU, Rythmic, outlaw, monolith....etc etc

[@AM-in5cf]

Not everyone wants a 60 lbs sub in their living room. I mean you’re right but for the size this subs slams pretty hard.

[@Letsdosomethinguseful]

@@AM-in5cf Correct!

[@connorjohnson4402]

@@AM-in5cf THe specs say this bose ways 40 pounds so.....?

[@AM-in5cf]

Connor Johnson no it weighs 28 pounds

[@ThatsWhatSheSaid84]

@@AM-in5cf SVS Micro 3000... f3 of 23hz and weighs 22lbs in a 11" cube.

[@sodiaco3607]

Plsatics 😂