Thanks, Johan, for answering a simple question in under 5 minutes, using clear diagrams, just the right amount of science, and a concise, well-recorded narrative. Yours is a procedure I wish more people who make instructional videos would follow. I'm looking forward to watching some of the other selections in your impressive video catalogue.

@JohanSegeborn

8 жыл бұрын

Thanks! Very glad to hear that! Cheers Johan

This is the way of telling something in an intelligent person's manner Without any decoration but just education Keep it up

@magnusdenyer2424

2 жыл бұрын

R/iamverysmart . You reek of ego

I still call it magic that whole voices come out of this wonder machine

Literally when you said look up Faraday law I looked it up and it explains so much it's amazing what you can learn it in just a few minutes

Great video! I’ve been wondering how speakers produce sound for years now, so I just decided to look it up today!

Your explanations were so calm and clear! Thank you!

@JohanSegeborn

6 жыл бұрын

Thanks Chris, great to hear that!

Thanks man, spent ages looking for a good discussion on this :)

@JohanSegeborn

9 жыл бұрын

***** Thanks, glad if it was useful. Cheers Johan

perfect explanation for someone who does not understand anything at all, thank you, good job, well done.

This was one of the most helpful videos I have watched.😁😁😁😁

I've literally watched dozens of videos on this subject, but this video clearly explained everything in a way that made total sense. Thanks!

explained in very simple and interesting way . thanks

@JohanSegeborn

7 жыл бұрын

+gurpreet singh Thanks, glad to hear that!

Today my seminar of how work a speaker and this video is very useful to my seminar according to Punjabi videos ..thnx u so much

Thank you professor Snape for the great video.

Thank you Sir this really helped me for College, thank you very much :)

@JohanSegeborn

8 жыл бұрын

Thanks, glad to hear that! Cheers Johan

Johan thank you so much! I like your demos and tutorials really much. Please keep on doing this good work and benefit to us. Greetings from Germany

@JohanSegeborn

10 жыл бұрын

Really glad to hear! Cheers Johan

@Usuallyjustahuman

10 жыл бұрын

Btw: Where is part two? I am really curious :)

@JohanSegeborn

10 жыл бұрын

I'll be doing that one sometime soon I hope. Cheers!

awesome lesson . internet bringss passionate teachers closer to eager students

Damn. I always wonder how a speaker works when im stoned. This explains everything...

@JohanSegeborn

7 жыл бұрын

+OneStonedBear :-)

@sixbe9002

6 жыл бұрын

OneStonedBear bruh im watching this and that magnet looks like its jerkin off

@ammaryasir2270

4 жыл бұрын

@@JohanSegeborn Where is the next video that explains how speaker produces different kind of spunds?

@cxllion

4 жыл бұрын

@@sixbe9002 Lol....

@jeffreywilliams3030

3 жыл бұрын

im stoned

ur voice is soo comforting...!!

This video really healped me find out who i am

@JohanSegeborn

7 жыл бұрын

+Bejal M Thanks my friend :-)

@elijahjflowers

3 жыл бұрын

Same.😂

@user-bv4ec1oe9n

2 жыл бұрын

@@JohanSegeborn Thank you

@theargument9422

2 жыл бұрын

And who are you, a bass or a tremble?

@unboxalicious

2 жыл бұрын

@@theargument9422 he a spider

Great explanation for my curiosity, thank you good sir.

@JohanSegeborn

8 жыл бұрын

Thanks, glad to hear that!

Expertly explained! Cheers!

I am a physics major and think I understand the Lorentz force equation... the magnetic field inside a ring magnet should resemble the force inside a solenoid, which is all in one direction with the same direction as the axis of the magnet. The voice coil is within this uniform field, with lets say the field pointing up at every point on the voice coil. If I pick a point on the voice coil and do the "right hand rule" for a cross product of current with the magnetic field, I get an "outward" force on the coil at each point, as if the coil is being forced to expand. This doesn't produce a force upwards or downwards on the coil. If I want the right hand rule to produce an upward force, I need the magnetic field(or some component of it) to be pointing "inwards" at every point on the coil. This is best produced at the ends of the magnetic gap or even outside the magnet... so is the ideal rest position placing the coils near the top or outside of the magnetic gap?

Johan, great video. Just exactly what i want to know. Thanks.

@JohanSegeborn

8 жыл бұрын

+Rafael Rosa Thanks Rafael! Really glad to hear it

Thank you for the video! I will have to admit I wish my lectures would be voiced by you haha. Cheers!

Exolained really well, thanks a looooooot man

A brilliant tutorial for a scientific dummy like me. Great stuff...I actually understand it thus far!

@JohanSegeborn

10 жыл бұрын

Thanks Freo, Glad to hear that! Cheers Johan

this actually helped alot with my homework, thanks!

thanks for the lovely video. the reason there is a force on the coil is not due to faradays law. if a wire with a current exists in a magnetic field, it experiences a force due to the magnetic part of the Lorentz force law

My tution sir discribed same as you but you demonstrated it super......

@JohanSegeborn

5 жыл бұрын

Thanks man, I’m glad to hear that!

awesome work

@JohanSegeborn

8 жыл бұрын

+Arun Kumar Thanks Arun! Cheers Johan

Hi, Johan! I can't get enough of your channel. Brilliant. I was wondering if you could explain sometime WHY different speakers sound different from each other from an design/engineering perspective? For example, Creambacks and Greenbacks LOOK like they're constructed similarly: Basket, paper cone, voice coil, ceramic magnet... But what is it that makes them emphasize different frequencies to sound different? For example, if I got a brand new Greenback and immediately re-coned it with a non-Celestion replacement cone, would it still sound like a Greenback? Why does an Alnico magnet make the speaker sound different from a ceramic magnet or an electro dynamic magnet? There are a lot of guys on KZread who do speaker A/B comparisons, but you're an engineer and understand (and can explain) the actual mechanics better.

Excellent video, thank you.

Nice Explanations.

Thank you so much ..That was really great and helpful..

Amazing video!

@JohanSegeborn

3 жыл бұрын

Thanks, glad you like it!

Thank you John....can you please add the link of next video on subject

I still don't get it.. but I LOVE this channel and Celestion speakers!!

Good lesson

Brilliant teacher

Brilliant way to teach thanks and keep it up

@JohanSegeborn

10 жыл бұрын

Adityak1997 Thanks, Really glad you liked it! Johan

you have a great narrator voice

@JohanSegeborn

8 жыл бұрын

Thanks :-)

@arcaneaion4477

3 жыл бұрын

Omg even I was gonna say that .....your voice would be so good to hear on audiobooks 👍👍

I'm a 10th standard student. In our text book this is very hard to understand. But when I watch this video this is very interested. 🤗🤗

@JohanSegeborn

3 жыл бұрын

Thanks, that’s great to hear!

Very nice video and explain

This is amazing.

Excellent explanation sir

Great video

SO GOOD! Thanks!

Thanks for the explanation

Thanks...me and my friend had a conversation about it ....so we youtube it...and found you...thanks ....

Good and useful

very good presentation.. thankyou

@JohanSegeborn

7 жыл бұрын

+Vision Electric Solutions PE Thanks!

Helped a lot bro!😉

could you please provide the link for the next clip in the description? will be great healp if u do so

Very nice

Great voice

Two copper wires have detached from the speaker cone, can I reattach them ? It looks like they were originally glued to the cone. The speakers are Tannoy 633.

Thanks! I can now make my own 😊

GREAT VIDEO! THANKS

Clearly Understandable one...Thank you so much for your effort Sir.

@JohanSegeborn

8 жыл бұрын

Thanks Rinald, glad you liked it!

may be this is six years ago..but for me new video...tq Boss

Thanks a lot for the video!! Im using a tube amp, and im sure you are aware that I cannot disconnect a speaker out of the amp while it is on because it will damage the output transformer. So I was thinking, can I remove the coil out of a speaker and wire it to a jack and use it as a dummy load for the amp? This was I can use the DI out without having to use the speaker, so is it possible?

THANKYOU so much Johan! You are an amazing Teacher Wish I could talk to you face to face. Ive always been perplexed about speakers. I do have a question: In a movie scene we may have a bird chirping and a person talking at the SAME TIME. How does the diaphragm produce these two pitch's simultaneously if it can only move at one frequency. Either it moves at pitch of bird or the person. Do you understand my question? I havent got a straight answer from anyone at university!

@JohanSegeborn

9 жыл бұрын

Thanks! Really glad to hear that! They are superimposed, It's like a string with all its overtones. Check out this clip! kzread.info/dash/bejne/o2GOls2nlMjdg9o.html

How does it make a sound like alarms do you just gotta attach it to a button and it makes a sound?

so the combination between B feld and Magnet make Voice coil moving?

Thanks for the vid. I'm going to make the best headphones in the world one day so now I'm just making my own headphone speakers to test out.

@foreverduke4059

5 жыл бұрын

So whats your progress on your mission

@mxtchamilkyt2228

5 жыл бұрын

For headphones not normal magnets you should use rare earth magnet to use it bigger speakers is a normal magnet

@didarulislam1402

3 жыл бұрын

Sir did u made the headphone

@waterdragonsage8460

3 жыл бұрын

@@didarulislam1402 Not yet, i had a design, but i'm going to postpone designing for the time being. For the current best headphone look up the raal requisite head speaker.

Thanks! This helped alot!

@JohanSegeborn

6 жыл бұрын

Thanks Glad to hear it!

Nice video help me alot in exam thanks

im only watching this because of school lmao

@mradrinaline43

3 жыл бұрын

Yeah me too

How the coil move, only when amplified electric signal is given to it?

great video ma, really helpfull, qhere a i found the continuation?

@JohanSegeborn

9 жыл бұрын

Thanks! Haven't gotten around to do that. But I will soon! Cheers

johan, question, do the always orient the magnet with the north pole towards the front?

Perfection!

Hi john it is really great explanation.I want to know much more detail means if x is my input voltage then how much sound pressure generated by diaphragm movement.

@JohanSegeborn

10 жыл бұрын

Thanks! Check these links out: Say that you have a 50W amp and an 8Ohm Impedance Speaker corresponds with a voltage of 20V and a current of 2,5A. Try it for different values. hyperphysics.phy-astr.gsu.edu/hbase/electric/acohml.html In the second link you can relate input power to the element sound pressure level at some distance. ((One interesting thing to note is that doubling the effect of the amp is basically same as the difference between a Greeback G12M of effectivity 96dB and a V30 of effectivity 100dB.)) www.hometheatrebasics.com/home-theatre-tools/spl-calculator/ Cheers! Johan

very interesting sir. you know i am fan of physics. there was an old speaker at my house. i knew that every speaker had a magnet. so i was eager to crack that and take out the magnet to play. but after i did it, i really didn't like to destroy it. i am planning to remake it in my own way and understand the mechanism so i will present in the science exhibition. help m with your appreciative videos.

@JohanSegeborn

9 жыл бұрын

Mukunda Thakur Thanks! Glad to hear that. Good luck with the exhibition! Cheers Johan

Why do some speakers have thick double magnets? Do they require more power to operate?

muchas gracias !!

nice information provide for speaker thx

@JohanSegeborn

6 жыл бұрын

Thanks, I'm glad to hear that!

It's crazy how Dr. Johan has a much more British sounding voice than regular Johan.

@MR0DDB4LL

2 жыл бұрын

indeed. it's also pronounced differently, something more like yuw-hahn (with stiff upper lip)

Helpful

Good Video .. Cheers!

Thank for this video, and all the others Johan! Really great work and the comparisons are wonderfully informative! I have noted the lack of the JCM 2000 DSL 100 (or any other JCM2k TSL) in your vids. Please, is that amp not worthy due to tone or workmanship or ... ?

@JohanSegeborn

7 жыл бұрын

+Derek P. Thanks Derek! They are worthy indeed, I just haven't got a an opportunity, but I've had many requests on those lately so they're prioritized now! Cheers Johan

Good video

@JohanSegeborn

5 жыл бұрын

Thanks!

after recoil done..hv you face any like tremble when the vol is high..put any music the sound trembling..any idea?

@raebeat

5 жыл бұрын

does it anything to do with underhung or overhung?

Johan, how much of a role do you think speaker distortion plays in the classic sound of a pre rola greenback?

Thanks for the great video! I just have one quick question. What is the difference between the mechanism introduced 0:10 and the one you talked about later on. I made a simple speaker with the first method, and it worked just fine, does the latter produce a different sound?

@JohanSegeborn

8 жыл бұрын

+Alex Lee Thanks Alex! I think they are the same. The first concept where the magnet is moved through the coil and a signal or current is induced is basically a microphone. In a speaker you instead have a signal/current that you wanna transform into movement. Cheers Johan

@TimpBizkit

9 ай бұрын

You get a stronger concentration of field lines at right angles to the coil with the second model, so it is more efficient. Field lines at right angle to the current flow gives the most force.

The pole pieces convert the ring magnet with a pole on opposite sides into a bent horse shoe magnet with the poles facing each other in the gap. Well imagine a ring of horse shoe magnets with the poles bent inwards to create a narrow ring shaped corridor with the north pole on one wall and the south pole on the other. In this sits the coil of wire, held in place perpendicular to the magnetic fields, such that the ring magnetic fields induced in each wire produce the strongest force upwards or downwards.

Nice plz put more videos

great video !! where is the link to next video?

Interesting, thanks!

@JohanSegeborn

8 жыл бұрын

+Kaj Haggman Thanks Kaj!

thank you for the amazing video i owe you my life father please keep your faith in the sun alive

Are you saying that the voice coil winding must be on the center of the N- magnet?

This is something the should do in school

this was what I exactly looked for

Thanks for the video. How are different sounds made from the same speaker, when moving at the same stroke at the same frequency? It confuses me how a speaker can make an infinite amount of sounds, from a fixed, finite position. Is it something really simple? Thanks for your help...

@JohanSegeborn

9 жыл бұрын

Red Shift Hi Red! A sine wave of 1000Hz means that the speaker vibrates a 1000 times every second, 50 Hz means 50 times per second. If you plot the amplitude of a music or guitar speaker you can se that the signal is a bunch a signals superimposed. Cheers

grouse video johan have learned so much from you already just wondering i have a fender bassman and it has greenbacks in it. i would love to know exactly what that means. what makes it a greenback shorly its not just a colour thing. just trying to understand my amp better. cheers johan your the best. there jensen if that means anything

@JohanSegeborn

7 жыл бұрын

+Ben Macpherson Thanks Ben! Greenbacks are the Ceramic Celestion G12, G10 and G15 speakers made basically between 1965 and 1973. They all have speaker cones made by Pulsonic, Celestion changed to other cones RIC1 in 74 and those are often referred to as Creamback. During the Pulsonic period, green magnet covers were he most common, thereby the name. Jensen is an American speaker brand (today made in Italy) Cheers

Nice

@Where is the next clip?

Hi Johan, Can i plug headphone/out of a Bugera G5 to the Loop/In of a Fender 212R combo? Will I get sound safely? (The Bugera G5 out for speaker is 8ohm but the Fender combo works at 4ohm :/ ) The question is regarding a tip that I saw from a Chinese guy here in KZread. Thanks in advance :) /m/ Rufino

Best channel on youtube! I wonder what happens if you degauss the magnet? Have you tried it?

@JohanSegeborn

9 жыл бұрын

Thanks, really glad you like it! :-) havent tried degaussing, I assume it increases compression and reduces attack. Cheers

I feel like this would be a great South Part episode...