Look inside Logitech Z4 2.1 speaker system - What's Inside?

[@Techscrews]

Bluetooth Receiver speakers on Aliexpress: - bit.ly/3IADvhv Bigger Logitech Z906 speakers on Amazon: US amzn.to/3KkPD7L UK amzn.to/3EkkQE9 DE amzn.to/3KmBPcW Newer Logitech Z623 speakers on Amazon: US amzn.to/2DF7L8R UK amzn.to/383wKRi DE amzn.to/2RfP43r Bluetooth Receiver on Amazon: - US amzn.to/3XJc4X6 - UK amzn.to/3YHtsgx - DE amzn.to/3Eg7xok

[@youuui]

It’s 2021 and I still have this speaker set up for my office. They look good and sound amazing! If you find these used, buy them. You won’t be disappointed.

[@akiranishihira]

Its 2021 and Im very sad because mine stopped working today.

[@youuui]

@@akiranishihira bummer. I’m sorry dude!

[@pabloesco3335]

I've buyed a couple days a used Z3, they sound pretty good tho and are in good condition, I was kinda surprised how they sound. I also have the z906 bought it new years ago and the z5500 as well but that's a way longer ago

[@098cpt]

same here, using it almost everyday, it sounds very good for the price, dont take space.

[@UltimaGaina]

It's 2021 and the rubber around one of my 15 years old speaker crumbled to dust. It was good as it lasted, indeed.

[@weezzell5400]

It's 2021 and I have had these speakers since I want to say 05 or 06 ....and they still sound great ...I got them when I was In korea in the army ...and I have used the crap out of them and moved a crap ton as well and they always survive

[@MrStuka86]

Same thing in here, also had the speakers from around 2007. And with the latest upgrade on PC with new motherboard and sound chips, the sound quality only has gotten better from previous experience. Amazing speakers.

[@madubt]

Just got this today at goodwill for $3.99….I’m very pleased. They sound amazing!!!

[@Techscrews]

give me 10 for $3.99

[@Triscuit08]

@@Techscrews i bought mine from goodwill for $1 you got scammed

[@TedFloryd]

Thanks! I thought my chances of finding any info at all for such an old and cheap product were quite slim, and I was sort of right since there isn't all that much other than this! I found my system in the recycling room and used it as an emergency replacement for when my receiver died on me, and I must say that I'm quite impressed with the performance for what it is. And I'm apparently not alone in thinking along those lines! :-) I've been pondering different ideas for building a serious portable "BoomBox" for a while. I've got a bunch of battery packs from scrapped eScooters which will supply the power for the system, and with a few hundred Watts of continuous output and several hundred Whrs of capacity available I must admit to having placed my ambitions sort of high, even if it's not hard to accomplish, and I've even got most components needed! eg: Car stereo (4x30W class D), bags full of satellite speakers and a bunch of Woofers/amps (Canton, Pioneer, JBL, Logitech and two whole sets of the excellent Cambridge MegaWorks 510Ds). Built in a cabin sized roller bag, powered by multiple batteries, I should quite easily be able to build a potent subway car/bus shaker! :-D But! As I retired the Z4 I realised that it would be perfect for a pilot/learning/"lite" project to start with! It does produce a Ton of sound from a few Watts and small size, and the Bandpass design also produces a LOT of low frequency from a 3" speaker in a tiny box! I've been thinking along those lines from the start for just that reason, but a serious BP config takes some serious designing... there are plans and shortcuts available, I know, but I like to make my own stuff, and mostly from things I scrounge up for free, that's half the fun! A £10 RFID copier was a game changing investment, as I now have access to most recycling rooms in my area! For now and to start with I was after the internal Voltage of the system. 14V is about was I was both hoping for and expecting as it is pretty much optimal for a "12V" system. (For those who don't know, a car battery that is at an actual 12V is pretty much empty, 13,8V is a typical voltage from transformers for 12V systems, and when you rev the engine of a car the Voltage rises to 16V+). As I have access to several high performance and capacity batteries, I will be wanting a couple of 12V outputs on the system, to run all kinds of other auxiliary equipment like a cooler, lights, chargers and what have you! If I'm going to be lugging around a fairly large bag for the system, I might as well cram as many functions as I am able into it. ;-) I do have a tendency to rant... Well met Ted

[@Fuzzycuffsqt]

Thank you! I've been using this system for over a decade now and it's due for some maintenance but I had NO IDEA how to open up the speakers

[@PBasschannel]

...series tuned 6th order bandpass subwoofer enclosure with a passive radiator instead of external bass port...and for home use + mass produced...maybe only just this Z4 and the older Z3 speaker systems had these types of enclosures...no other models, no other brands...there exists more Logitech models and speaker systems from other brands with passive radiators, but they are just simple passive radiator enclosures, on some Logitech models with down firing active speaker...and in satelites why are those passive radiators?...the answer is simple: to extend the midrange frequencies...for those who were upset on that this model or the Z3 is a "fake" or "scam" because of the passive radiators, they were very wrong, because passive radiator enclosures are hard to design correctly + a series 6th order enclosure with passive radiator is one of the types "the hardest possible to design correctly" enclosures, so big thumbs up for engineers who designed this for Logitech :) ...btw, word wide known mass produced interesting passive radiator speakers from other brand: Phillips - the wOOx speakers: I do not remember the model number, but I had one: on the front: bottom - active woofer, top - passive radiator ("wOOx" speaker), between these 2 on the enclosures sides were the mids / highs, and at rear a bit higher from the center - a regular bassport (flared aeroport).

[@RWL2012]

Quite a few models with this subwoofer design actually - Logitech Z-4, Z-4I, Z-3, Z-3e, Z-340, Z-540, Z-640 and X-620, and it was originally the Labtec LCS-2424 as Logitech acquired Labtec (the Z-340 even has Labtec stamped on the speaker magnets etc). This is a very good computer subwoofer design. I bought back a Z-4 not too long ago - a few years ago I had given a Z-3 (that I had bought for £4) to a friend and corner-loaded the subwoofer in the room she had it in. It sounded like much more than a 4" driver powered by a real 16 watts RMS, it was actually shaking doors and stuff in the 40ish Hz region! I'm looking at getting back a Z-2300 and even Z-5500, as I do miss them! Even though I have moved onto big audio equipment since my Logitech days.

[@ysiadpir1423]

My Edifier S330D woofer/power supply just died so I pulled these out of the spare pile. A few years ago used Permatex gasket maker to repair the satellite speaker cones.. so far so good!

[@nazsumadi3055]

I still own these speakers. They have served me well but am looking to finally upgrade. Maybe go 2.1 again or might consider a bookshelf setup.

[@gravecop]

Served me well for last 15 years or so. Right channel broke today.

[@pitapitabread]

good video. i've been using this speaker set for 12 years. i still like it. Question: What size is the real woofer driver inside the cabinet?

[@Techscrews]

passive driver is 8inch, but real is 4 inch :)

[@stevengoodman3498]

Can you unhook the small driver and just put a real 8 inch subwoofer in the front opening using the existing hook up wires? Or is it's amp unable to supply enough power to make it work? That would seem like a proper fix.

[@westelaudio943]

I can understand why you would use a bigger passive radiator on the subwoofer, but on the mid/high satellites they are completely useless and just there for fakery.

[@94XJ]

They do help bolster around 150hz on the mains. There's an audible difference if you prevent them from moving. I would agree they're mostly for looks since these speakers have a weird response curve but they do help smooth the overall frequency response a bit. All in all, for a crappy set of speakers I bought over 15 years ago for $49 I'd say they're pretty good for such a cheap setup.

[@63M1N1]

3:17 thank you fot this, my membrane started to punch the metal fish net part (sounds like shit on 30+ % vol) and i was thinking if i should take the whole box apart and remove it by myself or... search for someone who already did it and show me the easier way :) cheers p.s. i've been using these for my work room for the last cca 13 years, they are fucking solid

[@100davies]

actually sound very good considering so little inside, buy some 2nd hand you won't be disappointed

[@rafaelalonsogastelumsotelo3371]

Viví engañado 10 años pensando que era un bajo poderoso 😂

[@Darkstyle51]

Weird subwoofer build, didnt expect this.

[@Techscrews]

it's badnpass type box, very complex construction for subwoofer.

[@SergioGarcia-jg3yy]

I use only the main unit as a subwoofer for my hifi system to help with lowest frequencies. As weird as it might be, it works. It produces deep bass (but I insist, I use it only to help). I thought it had a 8" speaker before watching this. Now I know the truth, but I don't mind, it still sounds good for what I need.

[@rafalkaczmarek9441]

I thought that this large membrane is a bass speaker :) Besides, I am surprised that there is no material to mute in the column .. I have the same set and I was thinking about the bass outlet in the subwoofer, but I see that it makes no sense with this speaker design. thanks for the video. 👍

[@Techscrews]

thanks :)

[@UltimaGaina]

That's not an 8" driver, as advertised. I stumbled on this video while researching a replacement for my 15 years old system, I carried over from NL in the USA. I now feel better about the system with a subwoofer based on a 6.5" driver, I just ordered.

[@ВладимирИльин-о4к]

With a certain ratio of the resonance frequencies of the front and rear chambers of the subwoofer, you can get an unprecedented speed of vibration damping. The designers came close to this. But that's not all, there are three such frequencies, when using 2 of them you can get a third, which is much lower, by almost a third of an octave. Just don’t ask me why? This anti-gold section is a special frequency ratio. Perhaps this is the law of multiplicity and mutual absorption of low-order harmonics.

[@911pow]

Thanks a lot for this video! My Logitech Z4 and i think that the 51mm speaker driver from the satellites are a bit tired, they sound like there's no bass any more, the subwoofer is working fine thoug! So i'm looking to replace the two 51 speakers. Any link where I could find them maybe, or a product reference? Thanks!

[@Techscrews]

finding second hand z4 will be cheaper and better.

[@johnnyb2012]

Where I can buy satellite speaker/audio driver to replace? I bought 2 sets of this speaker system, but those satellites tend to make distorted noise at specific (+equalized) songs/frequency especially with higher loudness. After 16 years or so I think the rubber membrane around the audio driver is rather hard than soft so produced sound is affected..

[@MrNilsen900]

How much watts does it give to the subwoofer?

[@bobbydlp5323]

Hi ! Nice video ! The passive radiator is same as Z 3 ? Thanks !

[@Techscrews]

seems

[@bobbydlp5323]

@@Techscrews thank you !

[@oscarcheung5893]

Hi, so since this is the latest z4 video i can find... i wanna ask one thing. I bought new audio engine desktop active 2.0 speakers as an upgrade to my old system (the z4). Is it possible to re-use the subwoofer to the HD3? and if so, how should it be wired?

[@oscarcheung5893]

oh i saw the video and it looks like a tiny driver. any advice on whether it would even be worth exploring/ or would it make the sound worse.

[@Techscrews]

just buy 3.5mm to 2x3.5mm adapter and connect both systems.

[@69svejk]

A bit old to the party, but is there anyway to fix the on/off button? I hate to throw away such a good audio just because it doesn't stay pressed anymore. Everything else works perfectly even after so many years!

[@n67637]

There are 3rd party remotes on eBay. There are also OEM ones, but with how common the volume knob was (why I needed one), I decided to go with 3rd party. The buttons and especially the knobs feel better on the 3rd party one as well.

[@69svejk]

@@n67637 thank you! I will look into that. Is it possible to have a wireless remote on this?

[@uc_0000-]

Thanks for the video!

[@dotternetta]

I upgraded to passive mids with 2 tweeters. Bought another set, but sub is buzzing 50Hz even when powerswitch is off. How to fix this?

[@sypernova6969]

I have the same issue buzzing all the time (when on though). I'll try to redo all the connections, maybe even solder the remote straingth on the board, I suspect all these years of kicking the sub might have damaged the connections

[@dotternetta]

I found a free replacement with broken satellites

[@Z3DZ3R0]

Do you by any chance know what impedance the 2 small speakers have? I plan to use the subwoofer with other diy satellites.

[@dotternetta]

@@Z3DZ3R0 4 Ohm

[@toastdeluxe]

Did you put it back together after that? Just asking

[@Techscrews]

Of course and work like new.

[@toastdeluxe]

@@Techscrews wow!

[@Spreadsheet1com]

My Logitech Z4 2.1 subwoofer started making a thumbing noise even when not being connected to an audio source. i haven't opened the case yet. Should the capacitors be replaced? What do you think is the problem from past experience?

[@MrNilsen900]

Mine to when I turn off

[@Spreadsheet1com]

Update: I opened my Z4. Capacitors look OK visually. The subwoofer still makes a noise even without connecting to an audio source. Any ideas for repair? I love Z4 because of the remote control!

[@EnglishAddict]

Mine has the same problem. It seems to be a power capacity issue. An annoying hum in the sub-woofer box, but not speaker related.

[@thenicefox1462]

I have this loudspeaker and it’s beautiful, but I’ve always wondered, if it’s not really a subwoofer, how this loudspeaker can produce so many bass, just crazy when I put 3/4 of the volume the bass are crazy, and if it’s not a subwoofer, What is it then?

[@toastdeluxe]

Its a woofer i think

[@Rroy137]

2023, Mine still going strong!!

[@bobbydlp5323]

Anyone know if the passive bass radiator from front is same size as Logitech Z523 ?

[@DADUSCRIPTUS]

Hello friend, very good video. Do you know if it can drive 1 4 ohm speaker per channel?

[@Techscrews]

of course, but check amplifier temperature

[@JmJones2611]

So I got this from my dad and the left speaker isn’t making noise.. I opened it and seems fine any tips to get it work again ? Tried drivers all up to date and tried using different jack

[@gabrielvieira6529]

What is the size of the passive radiator? Edit: Now i know i read the description

[@Techscrews]

8 inch

[@gabrielvieira6529]

@@Techscrews Thanks!

[@s2000Macedonia]

And the size or the driver? 3"?

[@s2000Macedonia]

Also seems that its not a real bandpass system the passive membrane part has a hole that goes to the compressed side? Or on the compressed side the hole is not opened ? Odd thing

[@rachelc.6181]

I have this set and am looking to find a way to extend the cords that come from each of the speakers. However, I'm not tech savvy. What is that cord end piece called? What cord do I need to buy inorder to get that speaker cord longer?

[@Techscrews]

Simplest way is just cut through cable and solder an extension cable in the middle. FOr speakers there is 2 wire cable.

[@prestoncheapbtheadphoneste3010]

The ways the fool us in thinking we have a ‘12 inch speaker 🔈. When it’s actually a 3 inch in a box 📦 with a mesh over it. 😕😐 with a small watt amp.

[@huhwthisthis]

yo where i can get those passive radiators on satellite?

[@Techscrews]

why you need them ?

[@huhwthisthis]

@@Techscrews cuz it's cool? lol 😂

[@tobitechboy1461]

Nice! I soon might have one! (Found an ad)

[@trabakollias]

inside in remote control its 2 portal for headphone and microfhone.the portan of headphone its broke an my speakers don work.how to find a part or how too make to work my system with out portal of headphone?mus remove an second portal for microphone??

[@davidwillard2796]

Anyone have the wiring pinout for the corded remote. I got a set of these speakers with no remote. I will post the schematic and how to build a replacement or a bypass cable with just power and volume control. maybe the bass control. Thanks

[@Random_4400]

Hi can you please do the mindkoo soundbar 2.1 mk br05 thank you! It's a really good soundbar with a subwoofer for cheap!

[@Random_4400]

@Koti M kzbin.info/www/bejne/fYK3iX18qM51jbc

[@Random_4400]

@Koti M kzbin.info/www/bejne/jZLVdHpppbSDea8

[@Random_4400]

@Koti M ok ok calm down jeez

[@Random_4400]

@Koti M your just jealous

[@Random_4400]

@Koti M yeah ur jealous because i have a good system and you don't wana admit it

[@loudspeakertestsmorebyaida3804]

Some of the best Logitech speaker design

[@Techscrews]

Thanks, they use this bandpass subwoofer type box only some model.

[@neshifuturo]

in my opinion Z-5500

[@pabloesco3335]

@@neshifuturo and z906, I have them both 😜

[@arturkoziol6105]

thank U :)

[@Browningate]

Now, let's see if they still work when he puts it back together.

[@Techscrews]

Of course it works.

[@BoggyBatina]

I bought these in 2005. and today my right speaker stopped to work. I opened it up to check the connections but they are like new. What could it be? 19 years of hard bass.😅

[@Techscrews]

totally dead or just stop working subwoofer ?

[@BoggyBatina]

@@Techscrews It was not the speaker, it is his connector to subwoofer. Now its working again. :)

[@BoggyBatina]

I@@Techscrews There is another problem that I have with the right speaker for some while now. Middle one started to buzz. Is there any chance to fix it again or its done?

[@jimfarrell9117]

How do I connect my Logitech z313 speakers to my labtop?

[@Techscrews]

Just plug into laptop 3.5mm jack from speaker

[@azeemtics6613]

Are you playing dumd

[@azeemtics6613]

@@Techscrews really

[@gokhantezel2239]

great

[@suzibillball]

Does anyone know how to get these speakers to work without the remote?

[@n67637]

I bought a remote off Amazon for $28. Has all the same controls, but with more comfortable knobs and power button.

[@close2floryan390]

@@n67637 which one did you buy?

[@matimati9554]

Thanks Man for video how look inside speakers, on this model everything look fake, sattelite speakers only one speaker each, subwoofer aswell outside look big speaker but inside is only small speaker...., Thanks one more time, regards

[@Techscrews]

Thanks.

[@waleedraza7195]

Mati Mati no actually i have the same model, but really old, the satellite speakers do in fact contain only one speaker and the other two outlets are what are known as passive radiators, and they have their purpose, i just never understood it

[@АльпПромСамара]

Мдааа... Такое дерьмо в виде прессованного картона и копеечных деталей, и дешманских пищалок продают за такие деньги! Спасибо автору видео

[@zoranche1]

Subwoofer with passive radiator

[@Techscrews]

Correct

[@mpischannel1832]

I have that for around 8 yrs is more powerfull than logitech z333

[@staticyrro]

My 22 year old Z4s just died. I had no idea how much of them were COMPLETEY FAKE!!

[@Techscrews]

Its not fake, its bandpass subwoofer box type. Now you can see the same type passive subwoofers on jbl bluetooth speakers.

[@waynemartinez245]

I can't for the life of me, understand why people feel the need to press on a speakers cone. It's one the worst things you can do to a speaker. SMH

[@Techscrews]

Tell me, what's wrong with it ?

[@chobyz2394]

Alguien de ARGENTINA?

[@new_weegeegos]

4:22 turi ip ip ip ip ip ip ip tsha ik

[@bangherlambang3226]

Penipuan sepeti sub padahal cuma bass radiator

[@LowKeyContender]

saw a set of these on the used market.........so came to youtube to check them out. i think im gonna pass.......... they look like cheap junk. thats hilarious they make the sub look big.......but theres only really a tiny speaker in it with a passive..... basically woofer cone with no basket, motor or magnet behind it.

[@Techscrews]

Its passive radiator, that boost bass. This not bad system, but all about price.

[@billysgeo]

disappointing!

[@Techscrews]

Speaker or video ?

[@billysgeo]

@@Techscrews Speaker of course! It goes without saying!

[@bauhaus21]

Que gran fraude!!!!

[@bangherlambang3226]

Speaker penipuan hahaha

[@sebineagu80]

WTF

[@mdsveda]

Crap

[@neshifuturo]

yes compared to Z-5500 or Z906 it is :)

[@Gienek_CPU]

@@neshifuturo 5500 or 906 is crap too :)

[@Gienek_CPU]

What a fake speakers :/ they sound like garbage.

[@Techscrews]

dude, they cost less than one friday pizza party

[@Gienek_CPU]

@@Techscrews 100$ pizza? ok :D dude Where i say about prices? wtffff Man pls think a little. I have 25$ 2.1 speakers with real 5,25" sub and 3" full range in wood cabinets, and many more :D so price dont determine quality or fake.

[@Techscrews]

@@Gienek_CPU these z4 second hand cost around $30. Must be very crazy to buy them for $100

[@Gienek_CPU]

@@Techscrews New cost 100+ people buying it :D

[@sebineagu80]

WTF