Was expecting the same thing, some weird distorted subwoofer thats slapping hard like a frankenbeast... was slightly disappointed but it went well overall
The owner of it requested a round sub, but I might consider doing that to another one. I do have a plasma cutter I could do it with, though a laser cut would be better.
@Tsunauticus III I never know when subs like this are going to come into me to do things to, or what will show up. This month happens to be a hot month for it.
One reason I didn't was I wasn't sure how smoothly it would go together using parts not intended for it, which worked out OK, but also my methods of assembly. Nothing I build comes apart and I consider that a trade secret.
Pretty cool. I have heard about those kickers and seen and heard them too. That was awesome to see you turn that motor into a round sub. I have never seen that before. Will be waiting to see what else you do.
Cool vid. I remember when kicker went from the round solobarics to the squares. And they were monsters. I had two of the round 15's on an xs 100. Unfortunately my whole system was stolen. Times have changed. 🙁
Use to have two l7s. Sold em within a month. Running a Z 18 from sundown. But a emf amp and gotta say shes lovin it. That amp is a monster tho surpassed all my expectations by far.
Those L7s you have to put a ton of clean power into them to get the legendary output you hear about, but unfortunately they usually blow up, i almost bought that same 18 but decided to go cheap and get 2 soundqubed HDC3 18s Enjoy the bass my dude
@@hinesvillebass6742 yep, i basically tell all my friends, who want me to hook their systems up, i usually start with "how much are you willing to spend" then i go from there... its crazy some guys are like i have 200 bucks make my shit pound!! And by the next year they are begging for upgrades cause they can only get a decent amp and a couple cheap 12s... i usually end up hooking people up with my hand-me-down systems that i used to run, this way i get most of my money back and it perpetuates my hobby, plus i usually install for free because im a nice guy damnit and enjoy the sound system enthusiasm and company. Ok gotta run, ttyl
Sundown ftw but the only downsides are for a single cab everyday w/t Chevy or any other truck and new beetles sundown doesn't make shallow mount subs and affordable subs to poor bassheads I almost blew a 2019 Kenwood 12 sub because I have a old kicker amp the zx 1500 x 2 that's when kicker made good products
What a top video thankyou so much for your efforts and explanations love each and every vid keep up the good work and maybe soon I might have the opportunity to buy some of your products and get them shipped over to me in the uk God bless 😉👌👌👌👍👍👍👍👍👏👏👏👏👏👏
Thumbs up for me as well, I really liked the idea of stepping out the box. That tech stuff did have me stump as well even if I have been in audio for decades. Kicker or EMF should build a better square than the L7 or Solo X.
What a joke of a motor! For the price those things go for Stillwater Designs aka Kicker needs to be ashamed of themselves. I have only owned one kicker product ever and doubt I'll own another.
I owned a 12" kicker CVX once. Some how, a little Sundown sa 10 is twice as loud, both were in proper enclosures, ran in the same car and in trunk, on same amp, and both have the same power rating. For the money, Kicker sucks
@@travisjones1886 absolutely! Whats your middle outta curiosity? Mines Michael. Initials areTMJ like the jaw disorder which I just happen to have.lol smh
A guy tried trading me the same model L7 12's in a sealed box for a 10-gallon air compressor when I got there the subs were locked up solid. I went home with blown L7's in a box for free and cash. MY cats use the box to sleep in and the cones are on my wall lol
Ive always wanted to see an l7 turned into a normal circle subwoofer. Very detailed video. On a side note that was a small-ish motor. Definitely subscribing to your channel!
I cannot believe how small the magnet is for a 12 in. L7 woofer but makes for a very loud, and low hz for a sub ? But i don't build subwoofer's! So how would i know????????
Right I went to audio express today and I was testing out all the kickers and I tell you what them l7 ain't worth the money... That's why I got me a sundown audio
A rubber cone would be extremely heavy if it was strong enough to not be flimsy, which would be extremely inefficient, and everything else would have to counteract that making it more expensive and more expensive
I actually have two 1/4" impacts, but I prefer the air impact for these bolts on and off because of consistency and the method I use. I also use it on the spider jig because it requires that much torque.
Kool , what’s the most efficient design you have ever worked with, in subs , I know tweeters have some really good efficiency , but 18s with large motors are pretty kool too, pro sound is efficient,or have you made custom setups that are more efficient at say 50-60 hz range
The YOLO v2 prototypes I've built are extremely efficient and I could build them even more efficient but at the cost of durability. They wouldn't take the power, or the pressure, like PA stuff won't.
Just out of curiosity how were the SD figures calculated? 2 10" subs one round with a large surround one square with a narrow surround. On paper (without subtracting for surround) there is 100sq in of surface area (10x10) the other (surface area of a circle = pi( R x R) or radius x radius x pi, for the people like me who think there shouldn't be the alphabet when doing math lol. or 5x5x3.1416 = 78.54. A longer coil wouldnt matter since the motor is the same, so xmax will be the same? I'm asking because I dont know, not because I doubt your numbers. Thanks Rich
Effective cone area does factor in half of the surround. Regardless, the square cone does produce a higher Sd. However, cone area is not displacement. Displacement also factors in Xmax. Yes, the motor is the same but the motor isn't what's determining Xmax. Larger spiders that support more throw and a surround on the cone that supports more throw means a longer coil (within mechanical limits) will make it have more Xmax. Xmax is only as high as the surround, spider, top plate height, and coil length will allow in any given single part.
I wounder if you sprayed anything and cleaned out the space where the voice coil goes in. Cause i had a 15in L7 that tested fine but would get hot really quick and i noticed it wasnt sounding too well. Im like yo i think i blew this subwoofer some how. Took the sub apart using a heatgun. And the coil was BLACK. No unwinding or bubbles or nothing. But it was BLACK. So im like hmm mabey thats whats causing the issue. So im like what can i do, ima just clean the gap and RE assemble it. So i get iso alcohol and force a wet Q tip down the gap and it came back all brown mixed with black. Im like gross !!! Kept doing it and just more n more kept coming up. Im like wow this gap is dirty!!! So eventually i got tired of forcing the qTip in there, so i got a paper towel, folded it, put iso. Alcohol on it and stuck it in the gap like a card, and moved it all around. Lemme tell you, i had to doit multiple times before eventually nothing was left. No black stuff was coming out. Long story short, now the sub sounds nice again despite it having a black coil. Im thinkin it got overpowered and the glue melted and some got all over the walls in the gap. That gap smelt like burnt voice coil. So yeah man. Might wanna make sure you REALLY clean a blown L7. Theyll probably have the voiccoil glue all over the walls of the gap.
This one had none of that, and it was hot enough to burn the coil and unwind it. But keep this in mind, you disassembled the sub with a heat gun. What kind of quality is that?!
@@EMFAudio you need a heat gun to take off the plastic part the spider is on so that you can pull the entire thing out without messing anything up. Then you can glue it back. A heat gun used correctly will do no damage at all.
@@EMFAudio i was trying to get to the voice coil which still tested fine but was having issues,,,without ruining the sub anymore than it was. A simple clean & reglue, and im back to normal.
If a eBay seller on eBay is selling a subwoofer with a damaged surround and a partially blown voice coil and saying it needs a recone in the item description could the eBay seller be trying to rip me off by trying to sell me a subwoofer that can’t be re-coned or re-foamed.
That could go either way, depends what it is. Maybe they just don't want to fool with it, or got it free and want to make a few bucks on it, or maybe they found parts aren't available for it and hoping somebody will buy it to do who cares what with.
Are you able to make a sub do higher rms ratings with repairs you do? Like I have a pair of power akoustik mofo122x subs. I was running them off a soundstream rub2500.1d. one sub is blown and the other seems to be fine but I was curious what you could do to make them handle 2000 rms and what it would cost
It's possible, it depends on what coil they used to start with. The motor is a big part of cooling so there is only so much you can do. th-cam.com/video/-khnOAuOF_s/w-d-xo.html I couldn't promise any kind of power handling without building and testing. Cost wise, you'll end up having more in them than buying new subs when it's all said and done.
That was soo cool! What happened to kicker, they used to be good, if they continued like they was in the late 80's and 90's they would be awesome by now, they are chineasium junk now, and way over priced, I had a amp, back in the day, rated at 90x2, but did 545+ bridged! I had 2 on 2 solo 15's, in a more of a SQ build, today I'd rather have A Low baller!!
I have a subwoofer that died, not sure if it is due to too much power ( i think so) or clipping. If i pull it apart what would identify clipping or too much power? I have no plans to rebuild subwoofer just want to see the cause of death.
@@migascustomsounds3054 saying $150 for 2 is a waste of money nothing marijuana is just like saying buying a brand new Bentley for the price of a Corolla is a waste of money because it doesn't go as fast as you thought
Psi makes recone kits are great for reconing car subwoofers that can't be reconed but however the motor structure requires a little modifications to be able to use the psi recone kits are you familiar with psi
I am familiar with PSI, I've known David about 13 years. I think it's a little funny you said he makes recones for subs that can't be reconed. If they can't be reconed, he can't make them for it.
@@EMFAudio you can rebuild an L7 you just have to use some of the old Parts off of it when you have to cut a little hole over the L7 symbol to align everything but as far as a whole recone kit I don't know where that's at never seen one
Demonstration and visual aids are what make these videos great and for years I've been trying to get somebody to send me a full bridge amp to test things with. I think they're scared to know the truth because they always back out.
@@marshallb754ify It would have to be of comparable size to something else I have access too or people would cry about it. So, both rated for similar power.
That is towards the top end of what could go either way. I know it will end up being a bigger box so it should work out nicely without a harsh roll off.
I could, but by the time you pay shipping both ways, plus recone, plus basket, you could have just bought one of our Lowballers for less money and have a better sub.
You can actually peel the surround up and leave the cone assembly intact, only cutting the spider for disassembly. Then cut the coil from the cone "assembly", and voila! A reusable cone/surround! I've got their L7 UFO disassembled to this state now, wasn't hard at all.
That would depend on the circumstances, really. An SPL application vs music will give different results of desirability. Also, the reason it's not recommended for sealed would be a factor.
A subwoofer that isn’t designed for a sealed enclosure Usually has a tighter suspension so that way if it’s put into a ported enclosure it doesn’t bottom out as easily. But if you take that same subwoofer and put it in sealed, the chances of it blowing up will be higher because it will have a stiffer suspension and being in the sealed enclosure will make it harder to push requiring double the power.
@@Bassotronics What it comes down to is the proper volume enclosure, not sealed or ported. Tighter suspension just needs a bigger sealed box, looser suspension needs a smaller sealed box. The same result for ported in most cases.
We've been only doing it for locals that bring them in, but we may branch out into doing them sent in. You would be responsible for shipping both directions which adds to the cost though.
@@EMFAudio Yeah, I don't mind paying you for shipping. I think PSI charges too and then they want more than the woofer costs new to recone on top of it..
![[UNCUT] The Loyal Pin ปิ่นภักดิ์ EP.6 (1/4)](http://i.ytimg.com/vi/m05kZ2GDKXg/mqdefault.jpg)
Not gonna lie, was expecting some kind of voodoo where you married the round speaker onto the square frame....was about to be amazed!! 😂
Was expecting the same thing, some weird distorted subwoofer thats slapping hard like a frankenbeast... was slightly disappointed but it went well overall
Was thinking why not machine a square adapter to accept the round cone? That would have been pretty fucking sweet!
The owner of it requested a round sub, but I might consider doing that to another one. I do have a plasma cutter I could do it with, though a laser cut would be better.
@Tsunauticus III I never know when subs like this are going to come into me to do things to, or what will show up. This month happens to be a hot month for it.
Fuck meto lmfao! 😂😂😂
I don't know about all these techie specs, but you took something wrecked for a trash can and made it usable again. Cool to watch! Thumbs up.
HillBillyMoJo that rubber gasket thing was complicated won’t it lol jk
That’s just awesome. That L7 motor is way smaller that it looks lol
Ya they do it on purpose because most Consumers think bigger magnet better subwoofer
So true. If there is a one-stop shop to build your own sub, then that would be the best store to be!
Kool man. Thanks for the video. Wish u would have shown us everything about putting the sub together
One reason I didn't was I wasn't sure how smoothly it would go together using parts not intended for it, which worked out OK, but also my methods of assembly. Nothing I build comes apart and I consider that a trade secret.
I understand. Just trying to learn. I will eventually build my own frankin sub
How much to build me 3? I have 3 l7 motors already torn down.
This video is cool as hell. I did not know the basket just connects to the motor like that.
Now make a square sub with a square magnet like the one in your profile pic! And put it in a round enclosure xD
Pretty cool. I have heard about those kickers and seen and heard them too. That was awesome to see you turn that motor into a round sub. I have never seen that before. Will be waiting to see what else you do.
Its an EMF[ish] So-lo(w)Baller or a LowBallerBaric.
👍😎👍
Great Rebuild; awesome craftsmanship Sean!!!
Nice mods man! Great work. From trinidad and tobago always watching your vedio
Looks like the Doctor's in and ready to make miracles happen 👍🏻
Cool vid. I remember when kicker went from the round solobarics to the squares. And they were monsters. I had two of the round 15's on an xs 100. Unfortunately my whole system was stolen. Times have changed. 🙁
How this channel only has 9K subs is beyond me...???
Great content keep em coming...!!!
It's because people don't like and share the videos as much as they could. Supporting us on Patreon also makes for more and better content.
It's growing. Every channel starts off small
Use to have two l7s. Sold em within a month. Running a Z 18 from sundown. But a emf amp and gotta say shes lovin it. That amp is a monster tho surpassed all my expectations by far.
Those L7s you have to put a ton of clean power into them to get the legendary output you hear about, but unfortunately they usually blow up, i almost bought that same 18 but decided to go cheap and get 2 soundqubed HDC3 18s
Enjoy the bass my dude
@@ThisIsSolution you know it, same was gonna go cheep but after doing that over and over again. Said ima buy a good one and be done with it lol
@@hinesvillebass6742 yep, i basically tell all my friends, who want me to hook their systems up, i usually start with "how much are you willing to spend" then i go from there... its crazy some guys are like i have 200 bucks make my shit pound!! And by the next year they are begging for upgrades cause they can only get a decent amp and a couple cheap 12s... i usually end up hooking people up with my hand-me-down systems that i used to run, this way i get most of my money back and it perpetuates my hobby, plus i usually install for free because im a nice guy damnit and enjoy the sound system enthusiasm and company. Ok gotta run, ttyl
@@ThisIsSolution deadass all the stuff I dont use I sell to my friends to upgrade their rides
Sundown ftw but the only downsides are for a single cab everyday w/t Chevy or any other truck and new beetles sundown doesn't make shallow mount subs and affordable subs to poor bassheads I almost blew a 2019 Kenwood 12 sub because I have a old kicker amp the zx 1500 x 2 that's when kicker made good products
Love you vid's man. I also love assembling franken sub my self it's a joy😊🇹🇹
Cant lie that was fun to watch.
Kicker charges way too much for the L7 line of sub's for what you're getting.
Kicker is shit anyways
mustang6035 Its only $180 and theres a few louder subs out there for almost the same price but the L7s are still good subs
Not your mad your to poor for it my l7 1800 RMS dual 12 will own all your shit.
What a top video thankyou so much for your efforts and explanations love each and every vid keep up the good work and maybe soon I might have the opportunity to buy some of your products and get them shipped over to me in the uk God bless 😉👌👌👌👍👍👍👍👍👏👏👏👏👏👏
This is awesome! Very cool.
Thank you you just showed me what's wrong with my kicker. It is also locked up.
Damn
For the LONGEST time I couldn't find anybody to recone L7s
I've thrown MANY MANY out..
Well next time.. I'm getting ahold of you sir!!!
I have 4 15 L7 and them shits hit hard
Nice conversion
P.s kicker L7 😂😂😂😂😂L stands for Lame 😂😂
Stands for l7 weenie..oscar mayer😁
That's a nice looking sub
They suck tho.
I figured the magnet would be a little bit bigger than that but that is cool good job 👍🏻
thanks for the video it gives me a lot of useful info on how a different motor / coil can effect t/s parameters.
You might also like this th-cam.com/video/HRx8AeVP18M/w-d-xo.html and this th-cam.com/video/APeJRfv5IhA/w-d-xo.html
way to go kicker over priced Chinese aluminum coil !!!
sad so sad !!!!
great job on rebuild 👍
Thumbs up for me as well, I really liked the idea of stepping out the box.
That tech stuff did have me stump as well even if I have been in audio for decades.
Kicker or EMF should build a better square than the L7 or Solo X.
What a joke of a motor! For the price those things go for Stillwater Designs aka Kicker needs to be ashamed of themselves. I have only owned one kicker product ever and doubt I'll own another.
I owned a 12" kicker CVX once. Some how, a little Sundown sa 10 is twice as loud, both were in proper enclosures, ran in the same car and in trunk, on same amp, and both have the same power rating. For the money, Kicker sucks
I did not write this! Who are u??? 😂
@@travisjones1886 too funny!😆
Travis Jones right. Cool name lol
@@travisjones1886 absolutely! Whats your middle outta curiosity? Mines Michael. Initials areTMJ like the jaw disorder which I just happen to have.lol smh
Nice job...
Very cool!
Sure but can you turn a tweeter into a sub ? Easy it's called a chicken sandwich.
😂😂😂
6😈6
A guy tried trading me the same model L7 12's in a sealed box for a 10-gallon air compressor when I got there the subs were locked up solid. I went home with blown L7's in a box for free and cash. MY cats use the box to sleep in and the cones are on my wall lol
Diggin the soundtracks
Ive always wanted to see an l7 turned into a normal circle subwoofer. Very detailed video. On a side note that was a small-ish motor. Definitely subscribing to your channel!
Nice video. You just got another sub
Still rather run fosgates but the kicker q n t is nice
That’s awesome
I cannot believe how small the magnet is for a 12 in. L7 woofer but makes for a very loud, and low hz for a sub ? But i don't build subwoofer's! So how would i know????????
Right I went to audio express today and I was testing out all the kickers and I tell you what them l7 ain't worth the money... That's why I got me a sundown audio
Yo ain't u from Sierra vista
Love your videos!
Now build a sub with a very big magnet and big rubber cone
A rubber cone would be extremely heavy if it was strong enough to not be flimsy, which would be extremely inefficient, and everything else would have to counteract that making it more expensive and more expensive
“Too much power” to an L7 !?!?.... yeah baby!!!! Somebody ain’t messing around! Usually it’s the other way around ;)
Realistically, too much power on an L7 isn't hard to do.
EMF Audio it is getting cheaper to come up with more power you are correct 👍
Awesome 👍
Get a dewalt impact driver. It's a small impact that has plenty of power to take those bolts out
I actually have two 1/4" impacts, but I prefer the air impact for these bolts on and off because of consistency and the method I use. I also use it on the spider jig because it requires that much torque.
Add a line on the e make it a Bmf blowin money fast sub lol great video on the rebuild
Cool vid more like these if is posible please
Now I want to redo my l710 like that
Kool , what’s the most efficient design you have ever worked with, in subs , I know tweeters have some really good efficiency , but 18s with large motors are pretty kool too, pro sound is efficient,or have you made custom setups that are more efficient at say 50-60 hz range
The YOLO v2 prototypes I've built are extremely efficient and I could build them even more efficient but at the cost of durability. They wouldn't take the power, or the pressure, like PA stuff won't.
Gotcha pa stuff is efficient but it does not like a whole lot of power
So what are your thoughts on the new Orion hcca subs 154and 152 , do you have subs that are much better, for the cost $450 a sub
@@charliefrancis6438 They also have limited bandwidth AKA won't play well below 45 hz.
EMF Audio thank you for the reply I watch your channel all the time keep it going 👍🏻
Wow!
I need a basket with the holes at 110mm, do you have something like that in a 15?
No.
How did u figure where to hang ur coil..
(Coil width*0.5) - (top plate height*0.5) = position at top of top plate.
Just out of curiosity how were the SD figures calculated? 2 10" subs one round with a large surround one square with a narrow surround. On paper (without subtracting for surround) there is 100sq in of surface area (10x10) the other (surface area of a circle = pi( R x R) or radius x radius x pi, for the people like me who think there shouldn't be the alphabet when doing math lol. or 5x5x3.1416 = 78.54. A longer coil wouldnt matter since the motor is the same, so xmax will be the same?
I'm asking because I dont know, not because I doubt your numbers.
Thanks
Rich
Effective cone area does factor in half of the surround. Regardless, the square cone does produce a higher Sd. However, cone area is not displacement. Displacement also factors in Xmax. Yes, the motor is the same but the motor isn't what's determining Xmax. Larger spiders that support more throw and a surround on the cone that supports more throw means a longer coil (within mechanical limits) will make it have more Xmax. Xmax is only as high as the surround, spider, top plate height, and coil length will allow in any given single part.
Nice
I wounder if you sprayed anything and cleaned out the space where the voice coil goes in. Cause i had a 15in L7 that tested fine but would get hot really quick and i noticed it wasnt sounding too well. Im like yo i think i blew this subwoofer some how. Took the sub apart using a heatgun. And the coil was BLACK. No unwinding or bubbles or nothing. But it was BLACK. So im like hmm mabey thats whats causing the issue. So im like what can i do, ima just clean the gap and RE assemble it. So i get iso alcohol and force a wet Q tip down the gap and it came back all brown mixed with black. Im like gross !!! Kept doing it and just more n more kept coming up. Im like wow this gap is dirty!!! So eventually i got tired of forcing the qTip in there, so i got a paper towel, folded it, put iso. Alcohol on it and stuck it in the gap like a card, and moved it all around. Lemme tell you, i had to doit multiple times before eventually nothing was left. No black stuff was coming out. Long story short, now the sub sounds nice again despite it having a black coil. Im thinkin it got overpowered and the glue melted and some got all over the walls in the gap. That gap smelt like burnt voice coil. So yeah man. Might wanna make sure you REALLY clean a blown L7. Theyll probably have the voiccoil glue all over the walls of the gap.
This one had none of that, and it was hot enough to burn the coil and unwind it. But keep this in mind, you disassembled the sub with a heat gun. What kind of quality is that?!
@@EMFAudio you need a heat gun to take off the plastic part the spider is on so that you can pull the entire thing out without messing anything up. Then you can glue it back. A heat gun used correctly will do no damage at all.
@@EMFAudio i was trying to get to the voice coil which still tested fine but was having issues,,,without ruining the sub anymore than it was. A simple clean & reglue, and im back to normal.
@@kcemmanuel12savage75 like I said.... You aren't getting an EMF sub apart with a heat gun.
@@EMFAudio d bag much
If a eBay seller on eBay is selling a subwoofer with a damaged surround and a partially blown voice coil and saying it needs a recone in the item description could the eBay seller be trying to rip me off by trying to sell me a subwoofer that can’t be re-coned or re-foamed.
That could go either way, depends what it is. Maybe they just don't want to fool with it, or got it free and want to make a few bucks on it, or maybe they found parts aren't available for it and hoping somebody will buy it to do who cares what with.
Are you able to make a sub do higher rms ratings with repairs you do? Like I have a pair of power akoustik mofo122x subs. I was running them off a soundstream rub2500.1d. one sub is blown and the other seems to be fine but I was curious what you could do to make them handle 2000 rms and what it would cost
It's possible, it depends on what coil they used to start with. The motor is a big part of cooling so there is only so much you can do. th-cam.com/video/-khnOAuOF_s/w-d-xo.html I couldn't promise any kind of power handling without building and testing. Cost wise, you'll end up having more in them than buying new subs when it's all said and done.
Who wants to turn a square sub into a round sub and plus those Square spiders are pretty damn good Subs.
L7s are old news, they were cool in the early 2000s but there's so much better for the money nowadays with better sq
@@Luminous.Dynamics not in my book they good as fuck and they still make them
What was that first song you used during the time lapse? Sounded like sum ephwurd or something.
That was soo cool!
What happened to kicker, they used to be good, if they continued like they was in the late 80's and 90's they would be awesome by now, they are chineasium junk now, and way over priced, I had a amp, back in the day, rated at 90x2, but did 545+ bridged! I had 2 on 2 solo 15's, in a more of a SQ build, today I'd rather have A Low baller!!
Where to find the basket I wonder. Thanks for the vid
I still have it, the square one.
Help please! I have a kicker solo X 12 and the coil is fried. I can not find a recone kit. Would the lowballer parts fit this as well?
The parts used on this one aren't Lowballer parts and a Solo X is a 3.5" coil on the 12 I think.
@@EMFAudio shoot. Well thank you anyway. Keep up the great videos 👍
good night can you pass me the coil measurement??
Now u have a cvx
1:20 Well there's your problem right there... LOL..
Nice ki da why I kept the older model cvr 15 I got to do this same type thing with! The motor is sure small 😂😂😱
Wow for price the kicker l7 is pretty wimpy looking without her skirt
I have a subwoofer that died, not sure if it is due to too much power ( i think so) or clipping. If i pull it apart what would identify clipping or too much power? I have no plans to rebuild subwoofer just want to see the cause of death.
th-cam.com/video/katCOJ40kI4/w-d-xo.html
I always wanted a L7 until I got one. I was very disappointed ☹️
Mine were perfect. Have to put the right amount of power on it
Bought 2 brand new for 150 and just sold them because they are too small n waste of money. Loud but not loud enough to keep.
@@chefd9002 theyre garbage for the price you cone get Wolfram AUs or Sundown U. EMF banhammer
@@migascustomsounds3054 saying $150 for 2 is a waste of money nothing marijuana is just like saying buying a brand new Bentley for the price of a Corolla is a waste of money because it doesn't go as fast as you thought
Well it was a waste of money to me n space. That's why I sold them for wat I paid and pass them on to someone who was very Happ to be that loud.
Psi makes recone kits are great for reconing car subwoofers that can't be reconed but however the motor structure requires a little modifications to be able to use the psi recone kits are you familiar with psi
I am familiar with PSI, I've known David about 13 years. I think it's a little funny you said he makes recones for subs that can't be reconed. If they can't be reconed, he can't make them for it.
@@EMFAudio you can rebuild an L7 you just have to use some of the old Parts off of it when you have to cut a little hole over the L7 symbol to align everything but as far as a whole recone kit I don't know where that's at never seen one
@@danielmcbride2383 or just build it better to begin with, using other parts.
What is the name of this test track?
I never understood how they could play like they do with such a dinky motor/coil .
I'm curious how u tell it's from over power and not clipping what would u look for to see if it was clipping
Before there was Tech Stuff Tuesday, there was random videos like this th-cam.com/video/katCOJ40kI4/w-d-xo.html
You measured the ts parameters of the L7? In their manual the fs is 34 and vas is 57 liters which is quite different from what you measured
The motor isn't the only factor in parameters. I completely changed the sub, the parameters shouldn't match.
EMF Audio So the ts paramaters that you listed at the end for the L7 is the L7 you built? Or the factory kicker L7?
@@cjon24s69 What I built. Posting the manufacturer specs would have no pertinence in this video.
EMF Audio Seeing that small of a magnet on an L7 is dissappointing, Ive always liked L7s but I wonder if a rockford p3 has a bigger magnet than an L7
@@cjon24s69 I happen to have a P3 in the build room right now. I'd have to sit them side by side to compare. I think it might be a little bigger.
i hope they didnt pay you to do that!!! that had to be more expensive then just buying a new one
What the hell what treatment was pit to it😊 poor L7
Why??? Dont you get more surface are with a square surface than with a round????
There is more surface area, but surface area isn't displacement, and displacement isn't the only factor in performance.
I couldn't imagine spending money to do a conversion on that motor. Seems like you could buy something better for the money
the old cvr 18 motors were more beefy.
EPIC!!
Will you consider doing a tech stuff Tuesday on comparing half bridge and full bridge amplifiers?
Demonstration and visual aids are what make these videos great and for years I've been trying to get somebody to send me a full bridge amp to test things with. I think they're scared to know the truth because they always back out.
Would it have to be a large one for you to compare them?
@@marshallb754ify It would have to be of comparable size to something else I have access too or people would cry about it. So, both rated for similar power.
Can i put 2 identical 12 inch subs into the same box except that one is a 4ohmsvc and the other 4ohmdvc
They wouldn't be identical then, I wouldn't recommend it.
That is a pretty high Qts. Is the customer planning on going sealed?
That is towards the top end of what could go either way. I know it will end up being a bigger box so it should work out nicely without a harsh roll off.
How much would somthing like this cost? I have 2 older l7 12 motors the chrome ones
By the time you pay for the recones and shipping both ways, it cost more than just buying a Lowballer.
@@EMFAudio cool iv just had em sitting in my garage for a while wondering what i could do with them
@@coltonholaway7902 I could do it, whether or not you believe it's worth it is another thing.
Nice using a Bassmekanik audio test track.
Where are you located i have a kicker l7 15 4ohm i wanna bring back to life like on this video and how much is the cost. Thx
We're in Spartanburg SC
I have a $60 boss sub pushing 10000 watts. I had a 300 watt amp that blew it up. Can you fix it? Maybe I underpowered it too much
You gave the sub distortion(heat) and it blew(burn) up. Let me quess... Gain on maximum? Needs a re-cone
@@lassediscovers1813 lol I was just joking around. I'm pushing 2 type Rs at 1500 watts rms off a prx1500.1 at 1 ohm.
@@MLProductions.1 that sound awsome!
After your conscious of them making noise and all of the sudden....
🔊🍟💨👃.
😳😌😝.
do a rockford fosgate p3
Send me one to do.
@@EMFAudio i think my buddy has one lol
I've got one from early 2003ish that needs some work.
I'd like to see something comparable done with the banhammer
Using a Banhammer motor to make it into something else?
@@EMFAudio yes sir not sure what parts would fit but I'm sure you could come up with something
But why would I when my business is in Banhammers?
@@EMFAudio True I honestly dont think it's too many subs that compare to the banhammers especially in range
@@EMFAudio I think I worded that wrong take a sub and see if you can turn it into a banhammer not the other way around
How much " is the voice coil???
It's a 2.5" voice coil.
How the hell does a sub lock up?
Usually it's a result of the coil unwinding in the gap and getting jammed.
Could I possibly ship my blown L7 for you to do the same with it? Would of course be willing to pay for everything .
I could, but by the time you pay shipping both ways, plus recone, plus basket, you could have just bought one of our Lowballers for less money and have a better sub.
now can we see how to upgrade the parts but keep it square?
That would require tooling at the very least, a cone.
@@EMFAudio (Rob Schneider) "YOU CAN DO IT!"
You can fund it! www.patreon.com/emfaudio
You can actually peel the surround up and leave the cone assembly intact, only cutting the spider for disassembly. Then cut the coil from the cone "assembly", and voila! A reusable cone/surround! I've got their L7 UFO disassembled to this state now, wasn't hard at all.
EMF, what is your take on using a sub in a sealed box that isn’t recommended for sealed?
That would depend on the circumstances, really. An SPL application vs music will give different results of desirability. Also, the reason it's not recommended for sealed would be a factor.
A subwoofer that isn’t designed for a sealed enclosure Usually has a tighter suspension so that way if it’s put into a ported enclosure it doesn’t bottom out as easily. But if you take that same subwoofer and put it in sealed, the chances of it blowing up will be higher because it will have a stiffer suspension and being in the sealed enclosure will make it harder to push requiring double the power.
@@Bassotronics What it comes down to is the proper volume enclosure, not sealed or ported. Tighter suspension just needs a bigger sealed box, looser suspension needs a smaller sealed box. The same result for ported in most cases.
EMF Audio
Thank you for the reply. I saw on a subwoofer box once that said “not Suitable for Sealed enclosures.”
Right ,in those cases the need to be ported is extreme. Most usually fall in the middle and will work either way to some degree.
How much do u charge to do something like this with alpine type r 15
I wouldn't, it's not cost effective.
But a L7 IS 🤔🤔
I didn't know you reconed other woofers.. I have some for you to fix!
We've been only doing it for locals that bring them in, but we may branch out into doing them sent in. You would be responsible for shipping both directions which adds to the cost though.
@@EMFAudio Yeah, I don't mind paying you for shipping. I think PSI charges too and then they want more than the woofer costs new to recone on top of it..
@@lmadden6236 What subs are they?
@@EMFAudio 4 American Bass XFL 15's dual 4 ohm. Same frame as the HDC4's.
Well, the problem is those subs are so cheap to start with. It would be the same story for us to do them. They're basically throw away subs.
Can you send me the link to where I an buy a subwoofer rebuild kit thanks
They aren't generic, they're built for a specific sub.
EMF Audio ok thanks
xchimnyx thanks
@@rawbasicrawbasic I can make a rebuild kit for L7s email me at Rzabo2004@yahoo.com
Okay I'm confused as hell! Why would anybody want to turn it into a round sub? I don't f****** get it