I've been an audio engineer for about 18 years now. I think about the physics of sound everyday. Recently got back into car audio and see a bunch of KZbin channels talking about clipping amplifiers. Something always felt off with how people describe it. This is the first guy to actually explain it the way it should happen that I've seen. Thank you for cutting through the bullshit!
@fxgamer-11yt24 күн бұрын
coils dont care if its a dc or ac signal clipped or not power is power if you over power it then it cooks and coil get hot not just form wattage but amperage two and clipping a amp increases amperage on the output of the amp
@UltimateDIY Жыл бұрын
You are basically the AvE of speakers. Awesome channel and great info!
@RobotUnderground Жыл бұрын
Wow, thanks!
@coltonwilliamson26472 жыл бұрын
Okay.. You cuss frequently, talk shit about people going to school and repeating what they've read but don't understand, you explain shit like a normal ass person and I fucking love it. Then you said you're about 3 days over and I about choked on my drink 😂 you're my fucking spirit animal sir ✊️
@RobotUnderground2 жыл бұрын
May GONZO bless you with the creamiest of ropes
@DillonHering2 жыл бұрын
Dude this is the funniest fucking video ever while at the same time being super informative and answering every single question I had...props to you man, please keep these kinds of videos going with all sorts of audio topics!!! The world needs more of this!!! Props brother 👏
@heavy12inchsub79 Жыл бұрын
You're the only guy with the coolest stacks of magnets
@RodofAllTrades Жыл бұрын
This is great! I really like the explanation of the square wave and the joules that is being absorbed/generated. This really clears up some misconceptions! I did already know that a clipped signal can create more heat on a coil, and NOW I know why. Now I am gonna have to check out some more of your videos!
@RobotUnderground Жыл бұрын
Glad you enjoyed it!
@wilsonrawlin8547 Жыл бұрын
Well said and hertz makes a huge difference for the time it spends in any position under high load. Stop a coil inside the motor under high load and it will be torched as well. Don't hesitate to correct me if I'm wrong.
@Simpleman87 Жыл бұрын
Another old-school trick is someone can use a tweeter in circuit, with the subwoofer and the amplifier to the detect clipping. The tweeter will start chirping as soon as the clipping starts !
@dapoolboy7532 Жыл бұрын
I use this method. Works perfect.
@kevinlechner77228 ай бұрын
Does it not blow the tweater playing those low frequencies through it?
@TimpBizkit8 ай бұрын
@@kevinlechner7722 they usually use a piezo that has a high pass inherent in its design. But for a regular tweeter you need a high pass crossover or a low value capacitor, otherwise the bass signal will burn it up quickly.
@narmale7 ай бұрын
@@kevinlechner7722 thats why you use the cap
@djtomtrain20159 ай бұрын
Wow. Actually the best video ive seen about this. Well done.
@bassinurfacerik29908 ай бұрын
Very true you explain things well.this is RIK from Lordof Bass we are out 4 inch coils do carry or have 10 d2 coils by anychance
@RobotUnderground8 ай бұрын
I probably have some but you'll need to text me direct 602-312-6504
@bassheadfanatik2 жыл бұрын
Bro thank you for this video. I needed more questions answered after this but learned more than I ever thought I knew. And your lesson on square waves and resolving them is exceptional
@desmondyankana Жыл бұрын
Its true i never use tools only ear here in trinidad
@amplificadoresgdls2 жыл бұрын
I love this lessons , 😂😂😂 yo are the best teacher but this generation it's not ready for this conversation lmao ,
@cadenjames442 Жыл бұрын
I am 🙂
@ThatsMrMark Жыл бұрын
Facts
@dunnbizzy792 жыл бұрын
I like your style lol.
@ceciljones124811 ай бұрын
I just watched your video again because you are a straight forward person and you don't sugar coat anything when you said leaving the gap pretty much not setting your subsonic filter properly that causes too much excursion which means it leaves the gap and like you said when you turn the volume up to much the head unit is clipping your amplifier so everything plays a big role i keep my head unit at a low volume and my subwoofers are lukewarm even when it is over 100 degrees
@RobotUnderground11 ай бұрын
You can set the subsonic in certain applications. Remember that the subsonic / infrasonic filter was created for only two applications. 1st the rumble of vinyl records being slightly warped and playing on the turn-table. 2nd as a high pass filter to prevent the amplifier from going into DC-offset when playing really low frequencies. Many amps already add this to an amplifier, especially in Class D amps. Otherwise though, you don't need it, just turn it down or off and use the amp / system normally.
@joeyamador79612 жыл бұрын
I can unequivocally say this the coolest nerdiest content and it's awesome! Love the content man!
@nickriker83362 жыл бұрын
Love the video man. Waiting for someone to tell it like it is, thanks.
@narmale7 ай бұрын
i ran a Diamond D3 1st gen for YEARS on a 1st gen Maxxsonic Brutus 3k... they both work to this day... just dont be idiots! its that simple!
@SATANALEX9 Жыл бұрын
EMF Audio Shawn didn't explain this half as good as you did now I understand when the coil is out of the gap it doesn't disperse heat as good as if it where in the gap causing the coil too heat up rapidly,much faster than it can cool itself.
@cpufrost2 жыл бұрын
A speaker motor is a permanent magnet motor. The relationship between current flow in the coil and excursion is a complicated one. Exceeding the VC thermal ability for long is going to cook it. Just as if you lock the rotor on an electric motor causing the current to increase way over running amps and causing smoke if no overcurrent protection and/or thermal protection is present, the same can happen to a speaker. In a ported box at the tuned frequency the excursion is very low and this causes impedance to drop and power from the amp to increase. Increasing the amplitude higher exacerbates this characteristic until the coil burns out. Feeding a ported system frequencies well below the tuning frequency causes the drivers to unload and excursion to increase to xmax and eventually xmech if you're unlucky and that familiar clacking noise of the former colliding with the back plate if the design allows it. Some are just overbuilt to prevent (bottoming) but if really pushed can actually remove the former from the cone and spider altogether. Shorting rings are another way to keep it from leaving the gap too far. But an experienced operator and gain level engineer should never let this happen. Or be prepared to pay high re cone bills!
@11164kloc2 жыл бұрын
💯😆🤣I LOVE THIS DUDE WE NEED MORE🤣😆💯
@bradmeek2 жыл бұрын
Im glad you didnt release this video a month or so ago Running in my DD AUDIO 818D (4"VC) and after 5 mins of half decent clean power the coil started to smell Thankfully it was just the shit and excess burning off the coil, now I can throw well over rated at it for 20mins and it's all good
@RobotUnderground2 жыл бұрын
You may have been experiencing motor stall as the suspension was breaking in. Not sure. Wasn't there.
@FinsleysCustomCarAudio8 ай бұрын
So much knowledge in one video :~) Cheers from, Ohio..
@joshuarayne16764 ай бұрын
The time out of the gap is directly related to how clipped the signal is. Music is NEVER A SINE WAVE. But even the worst clipped signal isnt a square wave.
@justhere922919 күн бұрын
Clipping also hurts the amplifier so preventing a square wave helps the overall longevity of your system
@SDS-12 жыл бұрын
I lost it when you started jacking the coil🤣🤣🤣🤣🤣
@RobotUnderground2 жыл бұрын
Awe.
@defectahz63992 ай бұрын
Awesome video but there’s a misconception when “ turning your gain to clipping then turning your volume down “. If your volume is down, your amp input voltage/signal drops enabling you to turn your gain up without clipping. So you’re most likely not clipping if you have your volume down and gain up. The reason why people kill their voice coils is when they’re gain AND volume is up
@kingskingsmanship9 ай бұрын
Now!!!! I understand why. So that means pay attention to the heat.
@jimiKr432 жыл бұрын
Very well explained !!
@michaelzernie70922 жыл бұрын
Fantastic explanation. I have had subs that smelled. But those Rockvilles were waaayyy overrated. My A.P. subs haven't smelled yet. I pound on em frequently too. Love watching your videos explaining how things work. Keep goin dude. Punch that baby!!
@RobotUnderground2 жыл бұрын
Well that's the thing, it really doesn't matter what a sub is rated for if you just use common sense. The subs will always let you know when they've had too much of a good time.
@briansouth93252 жыл бұрын
@@RobotUnderground just like a cheap hooker
@juugman6648Ай бұрын
How can I get u to repair my sub it’s not burned out or anything still plays but I’ve smelled a few times now and sounds like you’re the man for the job
@RobotUndergroundАй бұрын
It's fine just keep using it or if you want to upgrade go ahead and sell it while it's still works and then we can upgrade from there
@RobotUndergroundАй бұрын
Just text me direct with your name and your shipping address 602-312-6504
@anthonypacheco7606 Жыл бұрын
Why does my mtx 9500 15 inch subwoofer smell at 70 degrees?? Any advice?
@RobotUnderground Жыл бұрын
Like when your mom washes your crunchy socks. Maybe that temp re-activates the funk.
@codemaster36962 жыл бұрын
Have you seen people that are heating water by rotating neodymium magnets along a section of copper pipe, so what this told me is that if the coil was not energized just the movement itself would heat up the coil so in a speaker you could be dealing with two sources of heat? Of course the heat from the applied voltage as well as this heat that is created as a result of the coil reciprocating through the field. This kind of hit me as I was watching your video..... Just finished the last 2 minutes of your video and believe what you were explaining is the same thing I'm talking about by the coil being out of the gap or they are at least related anyway. Great video now come to the conclusion that there are two main causes of heat in the voice coil and more math then I would ever want to do figure it out, but like you said visualizing is key become one with the coil!!!
@RobotUnderground2 жыл бұрын
Post the video
@clivetreu3325 Жыл бұрын
I enjoyed the vid and you help clear some distortion from mixed information, what you just demonstrated made complete cents to me, i played my woofers hard and just when i reached the desired vol i smell them coils, i thought my amplifiers were faulty, cause i had two Solar 1500d mono blocks on two 12" XTC Audio flavours 6000w d4s, noticed the one woofer started pulling in at full volume, now i no what was happening, i was pushing them beyond mechanical limits over heating the coils with a slot port box prob out of it's parameters, now i no y 4th orders are so popular thank you!
@RobotUnderground Жыл бұрын
Sure you might want to just look for a subwoofers with bigger stronger magnets to replace the ones you have now
@rmwils16145 ай бұрын
I am completely new to this so I know very very very little, you sir made it so easy and enjoyable to get this. Please don’t change. Only question I have is, if it has been smelling like it’s burning for about 10 days after installing it (second hand and a decently strong smell), how fucked is it? Alpine s series 12” powered by 500w alpine monoblock if that helps at all
@MacNifty Жыл бұрын
I would say that they have a loss of resonance. They are with a jitter.. Is super fine.. It's a jitter and hesitation... The power over and smashed in limits of performace in amp, sub or and more heat and bye bye combined with outside or inside. Distorted signal is a lost signal basically. It's missing sensitive information that keeps you on the road. Joke I speaker can't go sideways... Oh that definitely has resistance in the stroke. Pushing when should be pulling. Some people say no way because they don't realize how fast or small it is as it's a matter of time and space. Have a ramp up and ramp down square wave... That should be fun too. lol.
@Gomez5612 жыл бұрын
Wow, I learned a thing or two! Good way to explain it 👍🏼
@RobotUnderground2 жыл бұрын
Glad it was helpful!
@cliffordjasway68172 жыл бұрын
Bad ass thanks for the information 🤯🙏Jack off 😂 stress relief good one
@kevint101212 жыл бұрын
Excellent explanation. I appreciate your honesty. Would love to do business with you. Thank you for your time and effort. Kevin from Jersey. Keep it up.
@RobotUnderground2 жыл бұрын
I appreciate that!
@madlad_don2387 Жыл бұрын
ill be honest, i have a jensen amp that is rated for 1200 watts and I doubt it ever hits that, but I've also got 2 12 inch jensen subs and I'm 90% sure that I've almost cooked them a couple times but they keep taking all I can throw at them so I just abuse the shit out of them and its great, I plan on upgrading one day so for now its loud as hell and fun.
@RobotUnderground Жыл бұрын
Text me pictures when you can 602-312-6504
@defectahz63992 ай бұрын
Awesome video but there’s a misconception when “ turning your gain to clipping then turning your volume down “. If your volume is down l, your amp input voltage/signal drops enabling you to turn your gain up without clipping. So you’re most likely not clipping if you have your volume down and gain up
@RobotUnderground2 ай бұрын
Think of the gain and volume knob as a relationship like a seesaw. It doesn't matter how much the other person weighs, you always want it balanced. Depending on where each person sits can determine whether it's balanced or not.
@Widowmaker28282 жыл бұрын
So if all coils are good up to 500 degrees Fahrenheit, how hot can I let my coils get (checking with a laser thermometer) before having to stop playing them? My coils get pretty stinky around the 300° mark. I was trying to keep them under 200° when demoing at the Ruckus show but it was the first day I was playing with the digital laser thermometer. 4" flat wound 8 layer dual .7 coils on a clamped 3050 watts with extremely minimal clipping according to the clip light. Good vid! 😁👍
@RobotUnderground2 жыл бұрын
500F is fail temp. However I've built subs where they've melted the aluminum and that's 1200F. If they stink, turn it down. Don't need a fancy laser.
@Widowmaker28282 жыл бұрын
@@RobotUnderground Cool I appreciate it. They were stinky for about 7 hours each day two days in a row lol. If I turned it down I wouldn't have been able to demo at all. Gave out over 30 hard 160+ db demos that weekend. If I blow one I'll recone. 😁👍
@deeznuttz79807 ай бұрын
So your saying turn the gain all the way up just don't turn the volume up how loud should I turn it up ?
@jeremynelson84962 жыл бұрын
Dude I can smell you're bassing wrong! lmao nice one Robot
@salvatorehayes27532 жыл бұрын
6:05 Copper Definitely Conducts Heat Alot Better. If You Ever Tried Drilling Copper Buss Bars Or Copper Lug Holes To Widen Your Hole For A Larger Stud... The The Whole Thing Gets Hot Instantly / Evenly. Aluminum Doesn't Seem To Wick Heat / Transfer It As Fast. That's Why High End Heat Sinks Are Copper And Cheaper Ones Are Aluminum. I Believe Silver Is The Most Electrically And Thermally Conductive Metal, Impractical Due To Cost. Gold Is Below Copper And Above Aluminum I Think. I Did Some Searching And Aluminum Is Technically The Most Current Carrying Material For It's Weight. BUT The Volume Of Aluminum Cable Is Silly. Say You Got 2 Cables Both 10Ft Long And Need To Carry 200 Amps. The Aluminum Cable Will Be Lighter But Will Be Physically Larger And Substantially Larger Then The Copper Cable.
@TimpBizkit8 ай бұрын
The more load on the speaker, the lower the impedance goes. When it is free to move, the higher the impedance and also the better the cooling through the vented pole piece. So holding a speaker still while dumping a long sine wave into it near its limits its likely to burn it up. Whilst you wouldn't normally hold them still with your hand, tuning frequencies of boxes can do that. Leaving the coil gap reduces your mechanical reactance, so again more heat. (Not sure of cooling effect of proximity to steel magnet vs just air.)
@RobotUnderground8 ай бұрын
Yes that is called stall mode and I forgot to cover it in this video
@TimpBizkit8 ай бұрын
@@RobotUnderground the leaving the gap thing is bad in 3 ways. 1: You start to need more power relative to SPL 2: You lose mechanical reactance (the back EMF when converting electricity to kinetic energy) thus lowering the impedance. This also happens with DC and stall mode. All the energy gets turned into heat! 3: You lose the proximity to cold steel to absorb voice coil heat (though perhaps having more air circulating can compensate for this). I watched many speaker blow videos and it did seem like it was easier to blow the speaker coil on the same settings once it had left the gap completely. About square waves: an electrical square wave will not cause the cone to move in a "square" pattern (unless it is a very low frequency like 1 Hz), though it will still contain more energy than a sine wave with the same peak. The current determines the acceleration of the cone, and to get the cone to move in a "square" pattern needs very high current spikes in opposite directions. You will get more of a "dirty" sine wave with a square electrical signal, and the cone will have more excursion than the same peak voltage sine wave, so you won't be left with inadequate pole piece cooling. Everything is program dependent. Some rap/dubstep bass tester will heat your subs more than a rock track driven to clipping, as it's still only kicks and bass guitar and a bit of tom and lower vocal going through the sub.
@RobotUnderground8 ай бұрын
@@TimpBizkit As I talk about in the video, a square wave is harmless until the total voltage exceeds the force of the motor. You can play a really clipped wave all day long. In fact, in some music, there is distortion built into the music, (NIN for example). It's only when the output of the amp saturates the motor that you run into problems. Thank you for your response.
@asmack360 Жыл бұрын
What’s that music you’re playing it sounds nice and smooth
@RobotUnderground Жыл бұрын
kzbin.info/www/bejne/pqqmnJuGibpkadk
@anonymousvic53702 жыл бұрын
Idk man i push 3k rms all day to a hcca 154 and i only dump lows 16hz-31hz all day long so that coil jumps out that gap all day long and never gets hot
@DjR3aper2 жыл бұрын
so if they shouldn't come with a power rating, how do you know how much power you can safely fun through it?
@RobotUnderground2 жыл бұрын
It doesn't matter. Always use common sense. When you smell them, turn them down. You can get an idea of ampacity by how strong or big the magnet and coil are but you won't know the truth until you use it. Ambient temp, enclosure type and size relative to the Vas are all important factors. Here's a few white papers published by Dan Wiggins, founder of Adire Audio. web.archive.org/web/20041212012348/www.adireaudio.com/TextPages/TechReportsPageFrameText.htm
@rashad52862 жыл бұрын
Thanks for the info!
@kevincharles19832 жыл бұрын
I have direct cold ac blasting on my amp and speakers while playing. Works great
@RobotUnderground2 жыл бұрын
Look at you King Kevin with your fancy air conditioning! You must live in the future.
@teeone102 жыл бұрын
He teaches and makes me laugh at the the same time. I have a old lanzar opti 1233d has a cracked basket on top (rim) and definitely needs to be reconed. So if reconed will it play the same way or have the same fs
@RobotUnderground2 жыл бұрын
Heavier coil and softer spider will give a lower Fs.
@20hztimanderson852 жыл бұрын
My hero!
@DavidMiOo11 ай бұрын
I'm a high level network engineer for the worlds largest IT solutions provider with no college and when I am hiring for my teams, I take experience over education, and if ever asked why, I have one simple statement. If everything worked like it says in the books then I wouldn't have a fucking job. When contacted for a contract and asked about education my response is none, if they can't work out how I have nearly 2 decades Sr. Level experience and am now consulting their CTO, which makes all that shit irrelevant, then I don't want to do any business with them. It's like hiring the best plane designer then asking how he did in high school math. It's a level of stupidity that I personally opt out of, and I wish everyone else was in a position to do the same.
@cartycartyamplifiersalesrepair Жыл бұрын
Nice explanation Sir your right on point 👍 👍 🙏
@RobotUnderground Жыл бұрын
Thanks and welcome
@hopskustomaudio2 жыл бұрын
You sir are my new favorite person! Lol. Great video
@hispls2 жыл бұрын
I would argue that if you could build a cone/suspension light and soft enough to reach x-mech on 200W that you could play that woofer with the coil traveling outside the gap all day long without failure either. The important bit here is that coils burn from putting heat into them faster than it can dissipate and if it stinks you're overpowering it and need to turn that shit down. Try to tell people this and they look at you like you have three balls.
@RobotUnderground2 жыл бұрын
What's wrong with 3 balls? kzbin.info/www/bejne/a16Ziohnq71mY5I
@raymondrespress502 жыл бұрын
Thank You So Much Friend!!!😊👍
@elviscaragea4433 Жыл бұрын
Then a subwoofer can handle more power at higher frequencies? Above 50hz (80-100) because at that range the Xmax is very low. Can i add a couple of db at that range using eq? Without burning my sub
@mattm26842 жыл бұрын
Does high damping factor on a amp help with this problem ? How accurate to manufacturers rate damping ? I have a old PPI PC2350 claims it's 500 factor. I really need to get this amp fixed and going again. When I had 2 of these and wasn't in the dbdragracing lanes. I would run one to my door speakers at 1/4 gain no problems. NOT THE MOST POWERFUL AMP COMPARED TO TODAY AMPS. But it made 4 cheap efficient 15s hit 155db all day long in my daily driver never a problem. ( most people don't believe me when I tell them I was running 90 watts door speakers) I USED EARS TO SET EVERYTHING) I sat in a lot of manufacturers demo vehicles tuned with computers back in the day and didn't like how any of them sounded while the factor rep would be bragging about how flat its tuned and all the computer shit they used. LOL
@RobotUnderground2 жыл бұрын
"Can you hear the difference?", is the real question.
@hydroponic65612 жыл бұрын
Excellent info, Thanks as always!
@mkloudsql3285 Жыл бұрын
Wheres "Shield" with those new vibranium coils. And thanks pat for that epic real life hands on knowledge. Im in RF and i allways tell people. Numbers a good way to start but trial and error is what gets shit working properly.
@RobotUnderground Жыл бұрын
Correct.
@lylegoodluck2 жыл бұрын
Az here!
@easerone1651 Жыл бұрын
I start smelling my 18" dc audio when playing old school 90s bass,
@teknikalvette2 жыл бұрын
So clipping if not leaving the gap will not overheat th coil?
@RobotUnderground2 жыл бұрын
yes! Try it yourself. You can clip the input of the amp, the output of the amp and as long as it's a low level, you can do it all day long. NIN sometimes has clipped signals in their music and it's fine as an example.
@mumbols Жыл бұрын
Im 3 minutes in yeah you got my sub
@danielhardiman47072 жыл бұрын
Ears are all ive ever used to tune with.Buying a distortion detector to me doesnt make sense either doesnt the system voltage change all that when your powering subs? But honestly i beat the shit out of my w7 12s only problem this time was breaking my first attempted sewn in tensil leads but im gonna rebuild harvest the coils that are in great shape maybe 4 months of play tine and try using 2 sets of skyhigh 14 gauge ofc with heat shrink around those and give them that oem form fit connection i am gonna sell tho but like your vids bro!
@ceciljones124811 ай бұрын
Hey Robert why don't fi subwoofers have a hole in the bottom of their magnet like the majority of subwoofers and how do they stay cool?
@RobotUnderground11 ай бұрын
Hey Cecil. My name is Patrick Chandler. The organization is named Robot Underground. Some designs know that their subs are going to be abused and constrict the air flow within the gap. Scott / Fi did this first with the RE Audio MT back in the 2000's. By not venting the motor, you do gain some thermal mass. You also force the air in and out of the gap in a violent / turbulent way. It's not a quiet process. But if you're getting loud like in an SPL vehicle, mechanical noise of the subwoofer isn't an issue. It's just another way to do things. Is it better?? Scott seems to think so.
@ogairbender8082 жыл бұрын
Wooosaaaa Patrick 🤣🤣🤣😅you can't save em all
@RobotUnderground2 жыл бұрын
One at a time. For them it means the world.
@MacNifty Жыл бұрын
So many times people have just a hot car or they have it in the trunk... And it can't put up with it's rated power and they cook. The person calls that name brand a piece of junk but it was really just the operator that treated it like junk.
@RobotUnderground Жыл бұрын
You are correct.
@dustylittle9584 Жыл бұрын
Thank you!!!!!!
@RobotUnderground Жыл бұрын
Welcome!
@dabeardsmen36212 жыл бұрын
It makes good sense
@jasonmcdonald7187 Жыл бұрын
Quick question I have a kicker solobaric 4ohm wired to 2ohm. Don't have a car amp yet so I brought it in hooked it to a vintage marantz home system the sub is making a popping cracking sound while playing like could be blown. I ohmed the coils 3.4 for each side so that's good when I push on the sub no rubbing feel. Can this be because my home stereo is not same ohm rating? Unsure if I should junk it.
@RobotUnderground Жыл бұрын
I'd have to see a video, but it's best to try with different amps first.
@gradydeadsy60012 жыл бұрын
You have to much fun stroking the coil in that loose ass gap lol
@RobotUnderground2 жыл бұрын
Well when you're a good mormon and you have to preach the gospel to all the whore houses, it's gets a bit intense.
@daltoncute Жыл бұрын
Love it.. keeping it real!
@maxwedgedickdasterdly5586 Жыл бұрын
Just found your channel common sense is hard to find. I've been burning up speakers for ever. Now I think I know why . I'm an Idiot . I play music like I drag race . Wide open ! Lol 😂
@RobotUnderground Жыл бұрын
Live and learn just consider your mistakes part of your education.
@dannyquezada69865 ай бұрын
The best!
@elviscaragea4433 Жыл бұрын
From what you are talking here i understand that big xmax subs can handle more than the 1000wrms that they are ratted for?
@RobotUnderground Жыл бұрын
No that depends on many other factors including motor strength and the thermal mass of the coil
@215sinakia72 жыл бұрын
very informative thank you for this
@RobotUnderground2 жыл бұрын
Glad you enjoyed it!
@delaneo1002 жыл бұрын
Have you heard of those Peerless by Tymphany subwoofers with the large voice coils that can go in a really small enclosure? If so what do you think about them.
@RobotUnderground2 жыл бұрын
Just a different colored potato. It's still makes tater salad, just how much are you paying?
@filibertofonseca80832 жыл бұрын
If i understand you correctly you are asking what would the pros and cons would be. Pro is the small enclosure and con would be the point robot underground made is cost. You could probably do the same kind of salad for less
@wilsonrawlin8547 Жыл бұрын
@@RobotUnderground LOL! I know this is an old post, but I had to respond to the "tater salad" post. So brilliant and on point. ;D
@tourguideabelTGA Жыл бұрын
My 10inch be lnockin. It burned up today to Juiceworld BIG.
@Bobcatspiritdude Жыл бұрын
Is it possible to replace a voice coil while keeping the original cone ?? Thanks . I have an Mtx 7500 12 4ohm aluminum sub I might need refurbished
@RobotUnderground Жыл бұрын
It is a very difficult thing I don't even attempt it
@bumblezee Жыл бұрын
Can you fix a blown voice coil on 2 rockford fosgate p3 12s shallow mounts? If so i need your info asap lol
@RobotUnderground Жыл бұрын
Nope
@SQ_Silverado2 жыл бұрын
My alpine Type S and Type R both smell like some weird rubber plastic but not burning or smoke smell .. idk if it’s cuz they are new
@RobotUnderground2 жыл бұрын
Flip those before you kill them and get some bigger / stronger subs.
@russsmith9042 Жыл бұрын
Patrick you rock man. Yeah clipping the way you explain it the way I understand it is when the subwoofer actually goes up and actually stops for a nanosecond and then goes down and stops and the harder the clip the longer it's going to be stopped and when it is stopped it is sitting there generating heat and building heat and burning for that little bit time but that don't take long and it's fucking burning so yeah you're funny as hell dude so true though thanks for all your input output and all that shit man keep it up!!
@kennymccormick8295 Жыл бұрын
Great punctuation.
@cpzmelbs Жыл бұрын
@@kennymccormick8295what punctuation.. You tryna be a wise guy? Lol Call me a ding dong but I honestly don't give a turd how ppl type. It's like the words were copy + pasted from his brain as he was thinking it which allows my smooth brain to do the same but in reverse
@cpzmelbs Жыл бұрын
Anyone that capitalises the first letter of each word can kindly buy a dd1 and fall off a cliff, however.
@RyanBassForLife2 жыл бұрын
Its interesting I learned something. Its good to have a very high temperature coil.
@RobotUnderground2 жыл бұрын
All coils are the same temp. 500F
@RyanBassForLife2 жыл бұрын
@@RobotUnderground must be the glue that gives them there higher temperature ratings.
@RobotUnderground2 жыл бұрын
@@RyanBassForLife Do your own testing lol. See how the glue stands up to 500F
@RyanBassForLife2 жыл бұрын
@@RobotUnderground I'm not sure how glue withstands heat. I'm just guessing the glue helps if it's rated at a higher temperature 🌡🤷
@RobotUnderground2 жыл бұрын
@@RyanBassForLife The glue is there to hold the whole damn thing together. There's no such thing as HEAT TREATMENT for coils. The glue and all the other adhesives simply get hot and then fail at 500F and above.
@floydwilliams33212 ай бұрын
Engineers they’re crazy❤
@turblown2 жыл бұрын
Whenever I start smelling coil I turn it down immediately but always leave the sub moving so it cools faster , my theory is if you stop the sub completely it will stay at a high temperature like in an oven just roasting and shortening the coil's life. Turn it down to 1/4 volume , never completely down.
@commonsenseisdeadin20242 жыл бұрын
Same, Because logic!
@DjR3aper2 жыл бұрын
and that's the best way to do it unless you find out like I did that my spider separated from the basket 😆 🤣 😂
@geraldeverette4245 Жыл бұрын
Lmao I love you dude you tell it like it is
@MikeAnnunziato2 жыл бұрын
Best way to learn is hands on.
@RobotUnderground2 жыл бұрын
Hands off Deez Nuttz
@Feardorcha314 Жыл бұрын
Good video music
@RobotUnderground Жыл бұрын
Check out my playlists
@hardhead70562 жыл бұрын
Ive heard copper coils lean to "SQ". They are literally heavier because copper is heavier, but more electricaly efficient. But they dont dissipate heat as well. Aluminum windings are less efficient but lighter and dissipate heat better. Leans to "SPl" or competing.
@RobotUnderground2 жыл бұрын
The electrical properties don't matter in this application. The weight is what really comes into play. Yes, heavier = SQ, meaning it plays lower. The lighter and stiffer the suspension yields better numbers in power and efficiency but at the cost of being able to play low = SPL applications that give you higher scores but SOUND LIKE SHIT.
@hardhead70562 жыл бұрын
@@RobotUnderground SPL one note wonders are not my cup of tea either. But the physics involved in it i can get down with. Getting a good spl score on music is neet, but, just not that critical in my world as well.
@hardhead70562 жыл бұрын
As an aside. I need a TREO 15 reconed. Shifted top plate. Its frozen.
@RobotUnderground2 жыл бұрын
@@hardhead7056 No problem. Text me. We have great UPS ground rates, 6023126504
@RandoManFPV2 жыл бұрын
@@RobotUnderground wow after reading how simple that was for dude when he had a damaged subwoofer, I'm subscribing. Might as well prepare for when my subs die right now, make friends and figure out how we gonna fix em when they go 😅 Edit: not to mention the clear thorough and applicable information available on your channel
@MyBlowncobra2 жыл бұрын
Do a video on how to take an old woofer and while reconing you get more power handling from it...
@RobotUnderground2 жыл бұрын
That is FALSE NEWS as FB says. I've discussed this several times. You can put a stiffer suspension on it and technically, YES, you get more power handling... but at what cost? The cost is that the sub cannot play as low as it did before.
@Contact_Info Жыл бұрын
If you.overpower them they do that too..I had a Kenwood 400 wattrms and powered within mtx 10001 450rms at 4 ohm and it smoked up like 10 minutes. Gain wast too high though.
@RobotUnderground Жыл бұрын
Well the total voltage that you were running to the subwoofer was too much
@Contact_Info Жыл бұрын
@@RobotUnderground true
@Deeznutzyamouth Жыл бұрын
Lmfao. I'm dead epic vid fam .
@goddesslove43012 жыл бұрын
Really liked this video I always wondered why my skar heated up I did just build a 10 inch subwoofer sub it's rated 220 watt but I put 100w to it and it takes excursion all day: also a question can I use a 220w mini amp on my skar sdr 12 600w if I wire it right or should I not do it I also don't use my gain for volume love it keep up the great info vids
@RobotUnderground2 жыл бұрын
Glad it helped
@goddesslove43012 жыл бұрын
@@RobotUnderground what about my question bro
@RobotUnderground2 жыл бұрын
Just make sure you observe impedance minimums and use common sense
@goddesslove43012 жыл бұрын
@@RobotUnderground I have it wired to 8ohm
@goddesslove43012 жыл бұрын
But thay heat up tho idk why
@makskoma Жыл бұрын
How about to make box tuned to 40hz and play 50hz full gain doing clipping,50hz not have big xmax and wont leave the gap,do it burn?
@RobotUnderground Жыл бұрын
You can always make it leave the gap, you can always burn it.
@NateHarrisCreations2 жыл бұрын
But isn’t a square wave on a oscilloscope considered clipping?
@RobotUnderground2 жыл бұрын
The clipping created a square wave. It just depends on how much clipping there is. Yes you can generate a square wave and listen to it.
@timcouch50052 жыл бұрын
Do a video on how to figure the actual power capabilities of a subwoofer.
@RobotUnderground2 жыл бұрын
It's too complicated for me. In the end it's a guess anyway. You can guess conservative or you can go wild.
@johnoates33269 ай бұрын
Each time i get to my location after playing i always put my hand on my dust cap and make sure its never hot..If it is beyond warm that means my volume goes down next time i play lol..I cant afford to make those kind of mistakes lol
@mattwells1036 Жыл бұрын
What makes heat in wires or coils, is AMPERAGE. If you feed too many amps through it for too long it gets too hot. The reason clipping increases the likelyhood of cooking it is because its putting more amperage for a longer amount of time through your coil. Heat isnt only happening because it's got less windings in the gap, but does get worse if the coil doesn't move momentarily. How much it moves and how much airflow it has effects the cooling and therefore the amount of amps it can handle and for how long. There is no exact number, it's about time. How much time can it handle X amount of amperage for before reaching thermal limits. If you have anything more convincing that it leaving the gap increases how much amperage we see(like say, when it stops or nearly stops at the end of its stroke, the coil is no longer inducting back voltage, so is this going to increase amperage for that moment? Decrease it? You can handle clipping when the amperage is far below what the coil and its airflow can handle, that doesn't prove that the cause is leaving the gap, just that enough amperage to make it leave the gap, is going to create heat. Theres plenty of proof that leaving the gap doesnt cook your woofer when it's not seeing excessive amperage, you can push a good amount of woofers and subwoofers to those excursion extremes in free air and often not even induct any noticable heat. The main factor at play is amperage over time, in my opinion.