Fantastic series of videos. Cleared up a whole chapter of speaker building 🙏🏻. Thank you
@user-lj1yi6kj8v
Жыл бұрын
Hello. The coil has its own resistance, but the program does not take this into account? How to deal with it? What resistance coil should I use?
@bart2569
7 жыл бұрын
Nice series. I was waiting for this tutorial for a couple of days. Thnx!
@Toid
7 жыл бұрын
Bart Agten You're Welcome! I wish I could have had it out sooner to you. As always don't be afraid to ask if you have any questions
@bart2569
7 жыл бұрын
I do have one question. Im trying to match the total impedance of a 2way speaker design with my amp. I need to match an output channel of 62 watts, 8 ohms. I use a 6 ohm tweeter and a 4 ohm woofer. Is it true that with a crossover used, the impedence of this build will be 6 ohms in the 'tweeter frequence range' and 4 ohms in the 'woofer frequency range'. If thats true do i have to simply add a 2 ohm resistor to the high pass filter and a 4 ohm resister to the low pass filter. I hope you can help me out.
@Toid
7 жыл бұрын
Bart Agten Unfortunately that is not how resistors work. To best explain it as simply as i can, a properly designed crossover, your total speaker impedance will be whatever the woofer is. Of course you can use the total impedance graph in the program to see this. It will rise and fall with frequency, but overall will have a total output that matches the woofer. in your case that would be 4 Ohms. if you want an 8 ohm speaker, you will either need to use a different woofer or add another of the same 4 ohm woofer in series. this would then make it a total of 8 ohms.
@bart2569
7 жыл бұрын
Ok, thanks for the explaination. So I will go and look for a different set of drivers. Is it always the impedance of the woofer I have to take in account or does the impedance of the tweeter also matter? Many thanks allready!!
@Toid
7 жыл бұрын
It's more complicated than that, but as a rule of thumb, use the woofer to determine the impedance. Also check the system impedance graph when you make the speaker.
@justice_for_juicy4179
7 жыл бұрын
Best series ever. Been building speakers for a few years(Holtz designs) and want to step my game up to design my own. This is perfect start. Will you do a box design implementing the spraker/crossover you chose. That would help round out what I've been wanting to learn.
@Toid
7 жыл бұрын
Todd fortune Will do. I have a video I am finishing editing and then I'll create that one for you. The next video goes into greater detail of how to fine tune the crossover by creating a different one than the auto. Thank you for watching and letting me know wehat will be helpful to learn.
@justice_for_juicy4179
7 жыл бұрын
Awesome. Can't wait. Just finished the last set of Jim Holtz statements series. Built the full sized, mini's, center, and just did the monitors. Want to design my own 2 or 3 way to use at work to start with. Planned on using the statement monitors... But they might be too much for work :) anyway. That's for the lessons. Look forward to the next release.
@Toid
7 жыл бұрын
Since you asked for it: Here it is! kzitem.info/news/bejne/yJ-wzJaFe3hzn4I
@anotherbody2
2 жыл бұрын
Hello, shouldn't one start by measuring the drivers in their respective cabinets first? The woofer impedance/freq. responses are affected by the cabinets volume or air mass.
@Alexanderkkkkk
11 ай бұрын
Hi Toid and comunity, need help. Just finished building a new battery driven bluetooth speaker with a woofer and 2 tweeters. Designed the crossovers using this method. Somehow the tweeter is very quiet when hooked up to the crossover 😮. I dont think i messed up designing it according to the video and building it. I am an engineer and have built speakers with plans before. Have you got any idea how this could happen? The tweeter crossover is pretty complex with 6 parts including 3 resistors (2.4 10 and 18 ohms) crossing over at 4khz. Could the resistors be the issue? 10 and 18 ohms are in parallel though... Think i blew up my china bt amp too in the process of Troubleshooting 😅 Bonus question: Do (complex) passive crossovers make sense in china bluetooth amps?
@keitholdbean3173
6 жыл бұрын
If you wanted more bass would you put a slightly bigger inductor on the woofer ?
@Toid
6 жыл бұрын
You could do that. However, the best thing to do is put a BSC (baffle step compensation) on before your crossover. If you are unsure what that is, I made a video about it here: kzitem.info/news/bejne/zZpqp2qDimZ2Zoo
@christopherwilson6825
2 жыл бұрын
Hello @Toids I apologize. I put a question in the wrong video. I have a question? In a capacitor I'm trying to reach 8.0uf all I can find is 6.8 . Can I get a 2.2 cap and a 6.8 and tie them together? Or of anyone knows. Thank you in advance.
@Toid
2 жыл бұрын
If you want to get to eight then you'd want a 6.8 and a 1.2 or two 4s. Capacitors you run in parallel with each other. If you need more helper some pictures, I suggest going on to the Forum where we can help you. www.toidsdiyaudio.com/forums
@christopherwilson6825
2 жыл бұрын
@@Toid hahaha you know what ? I'm Moving to fast lol.@ Toids thanks for being patient. Confusing my education LOL . This is much to learn as a beginner. Just trying to learn too much at one time.
@gregworrel2623
6 жыл бұрын
You recommend the non-polarized electrolytic capacitors, which seems to be a subject for some debate. They are sure a heck of a lot cheaper. Are there any real-world objective reasons for choosing more expensive caps? I am generally unpersuaded by audiophile sound quality claims about amps and wire, but I have seen claims that the electrolytic caps degrade and change value over time. Any thoughts on this?
@poopandfartjokes
5 жыл бұрын
Greg Worrel electrolytics indeed degrade faster simply because of the materials used. As for sound quality, there’s really no difference... unless you’re an asshole
@appiehaddid2715
6 жыл бұрын
Thanx for your videos. Its helps me alot and I did follow your steps however I did use the LCR on the tweeter. They give me the number C1 and L1. I can only see it on the woofer lay-out? Can You Please help me. Thanx
@Toid
6 жыл бұрын
Appie Haddid you usually do not need an LCR on the tweeter. Are you sure you need it?
@appiehaddid2715
6 жыл бұрын
123Toid thanks for your fast respond. I have a realy nice line now. But I Will skipp the LCR And try iT without. Thanx again!
@appiehaddid2715
6 жыл бұрын
Is iT posible i Send You a picture of my diagram ? I think I find the Right way to add a LCR in my filter.
@Toid
6 жыл бұрын
Appie Haddid sure there's a few ways to contact me listed in the description. The best to our Instagram and Twitter along with patreon
@appiehaddid2715
6 жыл бұрын
123Toid If Send You Some pictures on instagram. Can u Please give me your opinion about my cross-over? Thanks!
@striker1258
6 жыл бұрын
Hey @123Toid can you show us how to assemble parts on pcb or a mdf board?
@Toid
6 жыл бұрын
Striker I can. Do you mean how to lay it out?
@striker1258
6 жыл бұрын
Yeah please. like schematic to a PCB Layout. just when you get time
@Toid
6 жыл бұрын
Sure I can do that.
@Toid
6 жыл бұрын
Just shot the video. I should have it up sometime after the new year. I'll make sure to post a link here when I have it up.
@Toid
6 жыл бұрын
Because you asked, here it is: kzitem.info/news/bejne/1p1psHtob55-p6w
@DMC428
5 жыл бұрын
Not sure if you changed it already (I know this vid is from 2017), but your intro is so loud in comparison to your audio. When I try to watch it next to my sleeping child (volume at a good level to hear you talking) and the next video starts (intro booms in), my son's awake immediately. Enough criticism, I love your videos and your "in detail" explanations. Please don't stop! Question: isn't there a full windows executable program version of this excel table? I guess not, otherwise Noone would using that excel table.
@Kul3Kow101
7 жыл бұрын
I'm really enjoying the videos, but I can't seem to get the program to work. Do you know if the program works with newer versions of excel, like excel 2016? None of the zoom buttons work, and it doesn't seem to be importing the frd and zma files I created using SPL copy correctly.
@Toid
7 жыл бұрын
Kul3Kow101 other people have got to work. Make sure that you have macros enabled
@Kul3Kow101
7 жыл бұрын
123Toid Ok. Thanks for the quick reply :)
@saundersdane
7 жыл бұрын
Great videos! How do I spec parts for and wire in a notch filter? My sub has a 7db spike at around 240hz (below my crossover point). Thanks!
@Toid
7 жыл бұрын
Dane Saunders it's in additional circuits. There's a way to factor in notch filters. it'll use a resistor inductor and capacitor. I always get my crossover parts at Parts Express. I hope this helps
@saundersdane
7 жыл бұрын
I think I figured it out. I ended up using a "Series RLC" in the "Parallel Leg 2" area of the woofer crossover calculator, and it seems to be helping a bunch. Only down side is the addition of a pricey inductor ($20/pc)...I'm guessing there's no way around that. Thanks again!
@Toid
7 жыл бұрын
Dane Saunders Glad it helped. Typically inductors for subwoofers. an get pricey. you might be able to save some money by getting a solid core inductor instead of an air core. in a 240 hertz range, it's probably not going to make a big difference.
@saundersdane
7 жыл бұрын
Awesome. Done. With the saving there, I went and chose a better quality cap for the Tweeter "Series section" (C9)....hoping that's worth it!?
@Toid
7 жыл бұрын
Dane Saunders that sounds like a great discision!
@devonbegin8279
6 жыл бұрын
Hey 123Toid, im very new to this but have always been intrigued with the art of designing and building my own speakers. i have watched your videos a few times and have subscribed. in your video on assembling I got a little confused with the extra resistors and capacitors on the diagram. I am a very visual/hands on learner and wish you would take the diagram and build it on a board, i had watched another video from someone else and they did a poor attempt in doing so. Every time they were explaining or pointing something out on the back of the board it was completely out of view.
@Toid
6 жыл бұрын
Devon Begin thanks for the kind words. I think what you're asking for I did a video on which can be found here: kzitem.info/news/bejne/1p1psHtob55-p6w. Over some people said it was still a little confusing. If you find it confusing, let me know I've been contemplating whether to make an even more simplified video sometime
@devonbegin8279
6 жыл бұрын
hey thanks for the quick reply, is there any way i can get in touch with you to pick your brain
@Toid
6 жыл бұрын
Devon Begin you can contact me pretty easily via Instagram or Patreon. There's also a way to send a message via KZitem if you want. Any of those would be fine
@biogesic918
Жыл бұрын
intro is hilarious for a "tutorial who claims who knows AUDIO"....
@striker1258
7 жыл бұрын
Hi @123Toid. now at 3:45 you choose an inductor of .51mH so say for e.g. i went .55mh now on on parts express goo.gl/QeXQp4 ( I made the link short) Now there are two different Inductors How do i choose which is good one is 20AWg and other is 15AWG?
@Toid
7 жыл бұрын
Good question. If you were designing a low powered system with a small woofer, like we did in this one, then the cheaper 20ga is plenty. However, if you were using bigger woofers and or a more powerful system, you would want to jump up to the 15ga. I do want to just let you know, that I have never built this particular speaker. This is just an example.
@striker1258
7 жыл бұрын
Thank you very much ..no problem i really enjoyed the tutorial helped me a lot....btw in your emoji speaker how did you design the crossover?
@Toid
7 жыл бұрын
Striker I show you how to design one of those circuits here: kzitem.info/news/bejne/zZpqp2qDimZ2Zoo. They are used on full range speakers and sometimes woofer/mids.
@mariusloubeeka5810
6 жыл бұрын
Hi Striker, the resistance of the coil depends on the Qts of your woofer and partly determins how big your enclosure will be. The higher the resistance the more it enlarges the Qts of your woofer. A higher Qts usually means lower cut-off frequency and the need for a bigger volume. To calculate the new Qts' you need the DC resistance (Rdc, sometimes also called Re) of the woofer and the resistance (Rc) of the coil: Qts' = Qts * (Rdc+Rc)/Rdc. If Qts' is smaller than 0.27 you will need a bass reflex enclosure in the size of the woofer's Vas. If it's bigger than 0.5 bass reflex will not work properly anymore. If it's bigger than 0.76 even a high-pass filtered closed box must be bigger than 2 * Vas. So if your Qts' gets too high you need a coil with a lower resistance. Otherwise get the cheaper one. Source of all my knowledge: German DIY loudspeaker magazine Hobby HiFi
@34Kuro
6 жыл бұрын
nice info here but you can't refer to capacitors measured in uF, this is microfarad, as well as frequency is not 17 hundred Hz just because it is 1.7kHz. Please do your homework better otherwise your info becomes disorienting. I know it might be a region thing but hey science is supposed to have a common language.
@Toid
6 жыл бұрын
34Kuro Thank you for the feedback. A lot of people that watch my channel are just getting into this, so I try to stay away from too many technical words (ie microfarads instead of uf) that they may not know. but I will definitely think about what you said for future videos
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