How NOT to design a CROSSOVER

In this video we are going to design a crossover the easy way and the correct way. See how they stack to one another.
Want to learn how design passive crossovers?
Check out these courses : audiojudgement.com/courses.html
Music Credits:
"Werq" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/b...

[@VanillaIceCoffee]

totally underrated crossover design video! impressive results

[@fullsendmarinedarwin7244]

I really like the crosscheck with REW, the measured vs simulated response is crazy how close they are.

[@dicko195]

TY. In 1982 I built my own speakers from a Radio Shack book when I was 22 using home built Heathkit equipment. Now I am getting back into it at 60. A lot has changed. My first project is to rebuild my 1979 Optimus T200 speakers. Gonna be a challenge matching drivers&xover to an already built enclosure. Great info.

[@dicko195]

Update: Followed your course info on Udemy, my speaker project mentioned above had very good impulse/spl results. My next project is to make a box for an existing old Polk 10" sub.

[@promoart4662]

cel mai tare canal, sincer contentul umple toate golurile, multumim

[@eduardojacome9783]

Gracias señor por compartir su conocimiento…! Saludos desde Quito-Ecuador 🇪🇨👍

[@drakos2000]

Salut. E super canalul tau, dai cele mai bune explicatii pas cu pas, mai ales pentru incepatori, dar cred ca subiectul asta ar merita detaliat putin.

[@hermangaviria690]

I just bought the courses on Udemy and I can't wait to learn all about building DIY speakers and crossovers, youtube does not have enough tutorials so hopefully your courses fill in the gaps

[@chrizekiel]

Thanks for making this video. Correct me if I am wrong. 1), pick drivers make box install drivers. 2)Measure driver sections T M S individually( psudo anechoic), 3) upload measurements to cad file. 4) make cross over. 5) Measure with cross over. 6) Cheers

[@AudioJudgement]

That looks about right :)

[@jessesleeper3167]

Dude, I love the track at the end of the video! I also took three of your classes on Udemy after watching this. Great lessons!!!!!

[@evaldas7346]

Perfect video, thank's for your work.

[@LTdonatas]

One of the best tutorial about measuring speakers and modeling crossovers. Could be more detailed but its ok. Maby some day ... :) Big thank you. For me is the most difficult is to get a good response measuring in the room.

[@artaverde9131]

La primul meu proiect DIY, credeam ca daca cumpar o placa crossover gata facuta cu componente bune la frecventa care ma intereseaza am rezolvat-o. Momentan ma depaseste procesul de a-mi construi singur crossoverul. Excelent video si o sa le urmaresc si pe celalate , poate prind mai multa incredere.

[@paulgyro]

Awesome video that really connected the dots for me

[@dell177]

Great information, thanks.

[@southernsoundpulse]

Hey,,excellent video, just like I imagined the correct way it has to be!

[@silverxiree]

thx great detailed video subscribed.

[@user-mk2tl8rs1m]

Great job man

[@alexw890]

Excellent tutorial. I see a lot of misguided posts on Reddit where people agonize over vCad simulations based on factory measurements and then just put that crossover in and call it a day. No measurements at all. This simple method, using x sim, is much better for beginners.

[@audiomor]

thanks a lot from Brazil

[@benmuetsch]

Amazing!

[@hexhere3851]

Mersi mult !

[@shaharyarsheikh6878]

great job. i wish i could send you my beloved audax speaker .

[@jaxmg]

might be a stupid question but how do you calculate crossover by urself?

[@andreasg.7767]

well done!

[@ianhames2465]

Marius, what a good Philosophy you have for teaching. My question to you is, what do you do to take a measurement for the weighted part of a compression hf driver?

[@AudioJudgement]

I'm assuming you are referring to T/S parameters measurement. The first measurement, without the weight will give you all the parameters you need. Measuring Vas for a tweeter is not useful.

[@AdnanKhan-eh5sy]

Good video as usual!! Though I am waiting for your new course. When this is going to happen?

[@AudioJudgement]

I am working in fact on a new course. It will be about how to build portable speakers. It will probably be out in 4-5 months.

[@qlewer670]

Thanks!

[@bryanbassett2110]

Hello! I am confused. You cite two videos in this video, neither of which are on your channel. In particular I'm interested in the video you say is titled: "Loudspeaker engineering: How to design crossovers"

[@AudioJudgement]

Hello! Those are courses and the link is in the description. They are not on KZbin.

[@focus-digital-marketing-ai]

Starting your udemy course now... Maybe ill be able to go passive and toss my active setup soon.

[@hadikayanuar1367]

perfect video! please make the video of detail tutorial on 6.40-12.20 and, are impedance can be measured on REW ?

[@AudioJudgement]

Crossover design is a very large topic and cannot be covered in a youtube video. You can find my courses in the description if you want to learn how to design crossovers. Impedance can be measured in REW. The T/S parameters are extracted from the impedance curve, so check the video with the T/S parameters measurement.

[@hadikayanuar1367]

@@AudioJudgement just a simple bit design please 😂 Ok2 REW can be measuring impedance, i would try step on this video. If you use dats for impedance, I'll try in REW, because dats instrument not avaiable in Indonesia.

[@AudioJudgement]

@@hadikayanuar1367 Try to buy from parts express. I'm pretty sure they ship world wide.

[@wyup]

Is capacitors ESR accounted for in the simulation or affect the REW result?

[@KevinWorrell]

Thank you for taking the time to make this video. What was the FS of the drivers? I didn't see you adding any Zobel or other driver compensation in parallel with the drivers. Finally, was the HF vs LF output (spl) matched so closely because of your filter choice, by the 2x mid-bass drivers just matching the acoustic output of the HF driver, careful driver choice, or a combination of all of these? What do you do to match the output point of the tweeter with the mid-bass drivers as far as phase is concerned? Thanks!

[@AudioJudgement]

A zobel network is used to flatten the impedance curve of the tweeter. Sometimes used when "the crossover gods" are not in your favor and you simply can't get the response you want. This crossover was indeed very friendly, and didn't need additional circuits to adjust peaks or phase. It was just a 2nd order filter and a 3rd order filter. You start as simple as possible, and if the response doesn't look how you want, then you add different circuits to solve different problems. That fact that we got the crossover to work without additional circuits, is mainly luck. Usually the tweeter is louder than the bass driver, but since we have 2 bass drivers, we didn't need to use an attenuation pad, as their SPL are evenly matched. Regarding the phase, every component you add to the crossover will shift the phase, so when you play with the values of the components, you have to be aware of phase also. You simply reverse the polarity of a speaker, and check if there is big null at the crossover region. If there is one (the deeper the better), then it means that the speakers are in phase.

[@KevinWorrell]

@@AudioJudgement Thank you for your reply. My question regarding the FS or free air resonance of the transducers was to see if that played a part in your choice of crossover frequency. Using the natural physical 6db rolloff of the LF drivers was a neat way to address the incongruence caused by the high and low slopes being unmatched. Still, I wonder what's happening with overall phase in the system. Given the limitations with passive filters we only can expect just so much, right?

[@AudioJudgement]

@@KevinWorrell You cannot use the natural roll-off of the speaker. I mean the HF roll-off of the bass driver (because it most likely contains cone break-ups) and LF roll-off of the tweeter (because it will burn out the speaker at high volumes). You need to cross over at least 1 octave away from these points. If you get closer to them you need slopes steeper than 2nd order.

[@makarone]

Hi Marius, thanks for the video! When you first made a crossover, you just picked the basic parameters of the speakers, and the result is not pretty good. But how it would work if you download files of the speaker tests( from manufacturer) , and use them for calculating crossover in the simulator software, and then take a measurements? Your simulated crossover was pretty accurate. So it might work for factory measurements. Maybe not so perfect like with home measurements, but better than using just the basic parameters.

[@AudioJudgement]

You mean like Dayton Audio, how they include the FRD and ZMA files for download? You can use those and it's a bit better but it's still not good. Those are measured in half space. Speaker position on the baffle and baffle size and shape affect frequency response by a large amount. So, you're still in the blind even with those measurements.

[@makarone]

@@AudioJudgement Thanks for reply!

[@timturner6536]

My god.. I’m in for a headache.. I’m currently designing a speaker with 18”, 15” 12”10” 8” and 3x6” plus 3 tweeters in a custom enclosure…. Oh shit… I wish you lived around the corner… I might have bitten off more than I can chew. My design might encompass the driver frequency that I would like, but the crossover might need a genius to fix. I have 4 amps to mono block to frequency, which is a lot of wire and power, but without the crossovers to seperate and frequency’s correctly… I might as well piss into the wind.. Thanks, I have a lot to learn…. Bugger….. Thanks for your video, keep up the good work!!! Kindest regards, Tim

[@Max-oi9ge]

Carefully select drivers, u cant just throw random speakers together. The highest u should go as a beginner is a 2 way system, one tweeter and one midwoofer, thats it. already a 2 way can eat months to take it to high perfection, a 3 way can already be a nightmare. Remember, taking ur time finding matching drivers will save u time and money at the crossover design. Dont forget to study, its all about that.

[@Max-oi9ge]

best matching drivers i found are the Dayton Audio RS series of speakers, they are great for beginners and are very forgiving to design flaws. Fun fact, u can start designing them without measuring equiptment, because Dayton provides u with the FRD and ZMA files, you only have to consider baffle step :)

[@borysandreyev9717]

Super!

[@aavillac]

Another excellent video Marius! Thanks, I've jus one question, can I export REW impedance measurements as .zma files?

[@AudioJudgement]

I haven't tried it as I use DATS for impedance measurements. REW can export measurements as text files. However, when I upload frequency response measurements from REW to XSim, I simply rename the file extension from txt to frd. I'm guess it will work the same way for impedance files from txt to zma.

[@aavillac]

@@AudioJudgement Thank you so much, I'll try it

[@Nightjar726]

What’s that anomaly on the second impedance hump at around 75hz? Cabinet resonance? Thanks!

[@Nightjar726]

Why did you pick 2500hz for the crossover point? Wouldn’t you want to check out the of axis freq response of the drivers to match the directivity of the drivers together? Thanks. Awesome video!

[@stevegorkowski3246]

Funny how we made crossovers before the programs and had good sounding speakers. He is saying to get the programs or buy the programs. Spend the money to do so and spend the time learning the program. Then you can design a speaker. He knows what you are going to say. Oh, that costs too much or takes too much time ? Then just buy my kits. :) Just get out there and start building speakers and crossovers. Build the coils if you want. Most important is to get started. Sound is like a fine wine and everyone likes a different sound profile. The sound profile you like will not be found in most cases running a program but by experimentation.

[@Mario_Terzi]

In a first order filter, for example for a tweeter, does it matter if the attenuation by a resistor is put before or after the capacitor? Or is it the same?

[@AudioJudgement]

If you have a first order filter on a tweeter and add a series resistor, it doesn't mater if you place it before or after the cap. For higher order filters it does matter. It will have a different effect.

[@kdexpressoo6023]

There wouldn't be that many on the market. If it wasn't easy. If someone wants to build a budget loudspeaker. Stick to the basics. Linkwitz riley filter has been popular for years. Using a 2 way design with a 2nd order Linkwitz Riley filter with decent box construction. I built my first pair using Peerless and Dayton, It sounds better than all the speakers I've owned. I initially was going to make a 3 way but I turned my design into a double two way design. MTM/WT with a selectable switch. The WT sounds more like its point source since there are positioned very close. Both sound good. If you design your box well with Dado joints it could easily last 250 years.

[@rsmrecords]

How safe is it to run the swept sine wave through the tweeter alone or in parallel with the woofers (but no crossover)? Isn't this putting the tweeter at risk even at moderate volume but loud enough to have a good noise floor?

[@alexw890]

I use his same method but only sweep the tweeter and the parallel measurement from around 1200hz to protect the tweeter.

[@pliedtka]

Nice, I like what Marius did to get the drivers offset by inverting the phase. I still have very old Clio in DOS and sometimes use REW as it does some things better than Clio. Thx, and take care

[@hugodiaz163]

I have been looking at different woofers and tweeter frequency and for example, I have a 6 1/2 inch woofer with 60-8000 Hz at 8ohms and a tweeter with a 3000-20.000 Hz at 8ohms. Now the woofer you are using is like a 8 or 10 inch that starts at 35hz I'm guessing it ends at 3000 the specs of your tweeter ? Now you want to use 2500hz on your set up. Why ? I don't have a clue on how to set up a crossover pls elaborate. Thank you

[@AudioJudgement]

In an ideal scenario you select the crossover point in the following way. Let's say you have a woofer which plays linearly 60-6000 Hz. At 6 kHz the response either roll-off naturally or exhibits cone break-up (large spikes in response). And a tweeter which plays from 1500 to 20000 Hz. You take the top end of the woofer (6000 Hz) and divided that by half (one octave lower), so 3000 Hz. Ideally you would not want to crossover the woofer any higher than 3 Hz. And for the tweeter you take the lower end and double it (one octave higher). 1500 Hz x 2 = 3000 Hz. So you don't want to crossover the tweeter any lower than 3 kHz. So, we can cross the woofer anywhere between 60-3000 Hz and the tweeter anywhere between 3000-20000 Hz. In this case the ideal crossover point is at 3 kHz. However, in most real life cases the 2 intervals don't overlap at all, so there is no way to cross them. In that case you either find different, more compatible drivers. Or, you bend the rules and cross them lower/higher but with a steeper crossover slope (3rd, 4th order etc). Also, in this cases, you should try to cross the woofer higher rather than the tweeter lower as that might damage the tweeter.

[@crossoverchef]

i like the stops @ 1:00

[@damienwright2483]

Why do you mess with the tails of the frequency responses, what does that change in the overall response?

[@retuuttaja4321]

Lets say i want to cross over an 8ohm speaker at 10Khz and the impedance graph shows 18ohms at 10Khz can i then put the 18ohms in the simple calculator to have somewhat useable crossover?

[@AudioJudgement]

Nope. You are probably worse by doing that.

[@MayumiTheKimura]

Was thinking about building my own but after the work, software and technical knowledge needed, fuck that shit all together.

[@alexw890]

You can do it! The feeling when you first hear music through your crossover is absolute bliss!

[@aidenkashi6110]

Hi, Do you do contract work designing crossovers?

[@PeterNaro]

Can you make a video about measuring frequency response of speaker with a measurement microphone?

[@AudioJudgement]

Not really. It’s not that simple to fit in a KZbin video. You can lookup my Acoustics 201 corse, if you want to learn how to make measurements.

[@jimgardiner1558]

I had good luck with TrueRTA Spectrum Analyzer software (paid -$97 about 10 years ago). For test mike I used the Behringer EMC8000 microphone (-$50 ten years ago). The mic is phantom powered so requires a pre-amp with phantom power (-$40).

[@robint6582]

hi ,ur crossover design lessions included vituix cad tutorial also?plz reply

[@AudioJudgement]

I never used it. Should try it someday. My lessons include only XSim for crossover design

[@robint6582]

@@AudioJudgement k thank u

[@criper80]

i have the raw and a calibrated microphone but i don' t know how to use them. you could make a video on this please....

[@AudioJudgement]

That will take several hours to explain. You can check out my courses if you want to learn how to do acoustical measurements and design crossovers audiojudgement.com/courses.html

[@krushanapatil466]

Hello sir, please help me.my speaker crossover setup (all speaker polk audio, av receiver marantz sr6015) Polk audio- Tower speaker RTI A9 30HZ-26KHz - Surround Speaker RTI A1 50HZ '27KHZ - Centre speaker CSI A6 45HZ 27KHZ- Dolby atmos speaker RC 80I 35 HZ 20 KHZ Subwoofer- 660wi Lower and Upper Audio Quality -3dB Limits 25 Hz → 125 Hz (At which crossover should I set each speaker?)

[@mohammedisaa9952]

I believe THX reccomends 80hz, so speakers go from 80hz and up, sub works from 80hz and down.... You could try a 5hz deviation, so speakers from 75 and up, sub from 85 and down giving a 10 hz overlap... (i doubt these surround home theater amps will do that tho), others reccomend 60hz as crossover point which most home theater amps are set at...... My Choice.......If you have good quality full range front speakers, then leave them set at full range, then the sides rears and any atmos (if they are good ones, set them to 60hz if there able to do from 40hz and up as standalone speakers), if there lowest figure they go to is 65hz or whatever, then choose what thx reccoments and do 80hz.... (like bookshelve speakers)... I set my sub to 100hz as maximum and adjust its own powered volume to match music sound by ear, not too much, but not too little, everything here ia subjective as it depends on sub speaker size, how well its ported or not and room accoustics ans size... yadda yadda lol.... Beautiful thing about these products is that you listen and try what works well for you and sounds best in wherever your listening to them..... Buy good quality, but not insane quality.... kef and dali are good but so is polk..... svs is very expensive for the little gain that you get from them....... You proberly know this now anyway as my answer is a year after you asking lol..... Always learning..... 🙂

[@Doviss007]

hello, how can you wire 4 and 8ohm loudspeakers together and get 4 ohm nominal impedance?

[@mohammedisaa9952]

Add resisters to change the loading value of the speaker, but idealy it dont matter as there is no such thing as an 8 ohm speaker unless its fed 1 note constantly, as its ohm value will change depending what frequency its fed and how much power its fed.... A pitzo tweeter can have 0 ohms load on an amp, which on ots own would blow the amp up, some subs can go from 2 ohms to 100+ ohms load to the amp depending what note its fed and how much power it can draw to make that note, especially in a seald box........ Dont worry 😉

[@ganesh7hillsstereo373]

👍👍👍

[@user-lj1yi6kj8v]

hello.I have reviewed your Audiojudgement - Acoustics 201 Loudspeaker Measurements course. I can't find a link to download Audiojudgement - Acoustics 201 Loudspeaker Measurements. Please tell me where to download.Thanks!!!

[@AudioJudgement]

Hello! You can't download the course. You have to watch it on Udemy platform.

[@user-lj1yi6kj8v]

@@AudioJudgement I have reviewed the course Acoustics 201 Loudspeaker Measurements! but I can't find a link to download the xlsx table. LF BOX DIFFRACTION. Can I download this file and use it? thanks.

[@AudioJudgement]

If you go to the course content and search for section 4 lesson 22, you will see a "Resources" button. Click that button and you can download the excel spreadsheet from there.

[@ulamss5]

So you actually only need the impedance curve, and not the exhaustive T/S parameters?

[@AudioJudgement]

You need frequency response measurements as well

[@filipovmarian9799]

Salut! Imi poti spune te rog de unde cumperi componentele ? Multumesc si tine-o tot asa!

[@AudioJudgement]

Salut! De pe Sound Imports le cumpar. Link affiliat : ndt5.net/c/?si=14570&li=1627332&wi=356069&ws=&dl=en%2F . Transportul dureaza 7 zile si costa 10 euro. Daca cumperi de mai mult de 200 euro e transportul gratuit.

[@poppy3879]

Is there a way of doing this with only the Frequency response and nominal impedance? I know it wont be as good as with a zma file but is it still possible?

[@AudioJudgement]

Dayton Audio has frd and zma files for their drivers which you can download. Even those are not useful. You need to measure your drivers in your particular box. Responses change significantly. Without measuring, the result is a gamble.

[@poppy3879]

@@AudioJudgement i have a meassurement mic for spl stuff, so no Problem there. But impedance gets difficult. I could just meassure with a Multimeter while playing different frequencies and aproximate the graph through this. I cant buy special impedance meassuring Equipment for speakers right now.

[@AudioJudgement]

@@poppy3879 There is a video on my channel where I show how to build an impedance measurement jig. You can measure impedance using your sound card.

[@poppy3879]

@@AudioJudgement hell yeah! Thanks

[@alexw890]

I believe x sim will put an estimated impedance plot in there if you don’t provide one. It’s still not ideal but it may help.

[@julianscht]

Hi Marius! I took your Crossover Udemy course which I fully recommend! The problem I'm having now is that I cant find inductors to buy in my country (argentina). The question is... make my own inductors is an ambitious project or is something doable? In the last case, could yo point me an starting point? Thanks a lot!

[@AudioJudgement]

Hello! Have you tried buying from Parts Express? I'm sure they sell internationally. There will be some import duties and additional transport costs though. I also advise to do a thorough google search of your county. To give you an example, in Romania there is an audio parts website, that looks like a shady html website from 20 years ago and after you pick your components from an excel spreadsheet you order them by e-mail. There might be a similar case in Argentina :). Regarding making your own inductors, it's totally possible. I haven't done it myself, but there is a lot of information out there to do it with or without a winding machine. However, finding good wire for inductors might also be a challenge. Solid wire, that easily bends with a thin layer of insulation.

[@user-lj1yi6kj8v]

Hello Marius Tanasescu. Xsim is a good program, but what about inductors? How to find out what RESISTANCE of the inductor to put in the crossover?

[@AudioJudgement]

Hello! If you right click the inductor and select tune, you can modify the inductance, but there is also an ESR section. That is the resistance of the inductor. Default is 0.35 Ohm, but you can change it as you like.

[@user-lj1yi6kj8v]

@@AudioJudgement Now I see!!) thanks.))

[@user-lj1yi6kj8v]

hello Marius Tanasescu. Please tell me if you use the program Passive Crossover Designer 8 Excel Workbook? I liked this program, but I can't download it (. My antivirus says that the file is infected with MacroVirus.Maybe you have a secure file and I can ask you to transfer it!? For example by email!?

[@AudioJudgement]

I'm not using it. Though here is the site where the file was originally posted: audio.claub.net/software/jbabgy/PCD.html . If your antivirus still gives a virus message, I'm sure it's a false positive.

[@user-lj1yi6kj8v]

@@AudioJudgement unfortunately, it gives the same thing (I will deal with the antivirus! Have you downloaded it?

[@AudioJudgement]

@@user-lj1yi6kj8v I have, but I don't have antivirus on this computer, just the normal windows defender stuff. Anyway, the spreadsheet uses a lot of macros, so it is likely that it will trigger some antiviruses. But I highly doubt it's infected or anything.

[@user-lj1yi6kj8v]

@@AudioJudgement thanks for the answers! I want to say that I like your courses. Unfortunately I can't pay for them. I live in Russia and our payment system is disabled. I'll look through the rest when the economy gets better.

[@user-lj1yi6kj8v]

it is not possible to create FRD and ZMA file using REW HELP thank you

[@AudioJudgement]

I create FRD files using REW. However, I use DATS to create ZMA files. You can use REW but you need an impedance measurement jig that you'd have to do it yourself.

[@user-lj1yi6kj8v]

@@AudioJudgement I made an instrument for measuring the impedance using rew, for reasons unknown to me, Xsim did not see the zma file. This error has now been fixed. Do you have plans to create a three-lane on KZbin?

[@TheRealBertMoog]

Strong Bad from Homestar Runner!!

[@dejkho695]

Why not use dew to masurement in time 07.54 ?

[@AudioJudgement]

You mean why I haven't used REW for impedance measurement? Because it's easier with DATS.

[@dejkho695]

@@AudioJudgement Please explain where the SYS and SYS" lines came from in XSIM

[@AudioJudgement]

@@dejkho695 Sys is the system curve. You have the bass curve and the tweeter curve and sys is bass + tweeter combined.

[@dejkho695]

@@AudioJudgement result from measuremented from speaker with mic rta or simulate or import file frd ?

[@brobi2]

really nice vids bro. Would be nice to see one with freq response measurements without a calibrated mic, if there is an option for that :)

[@AudioJudgement]

There is no point in doing that. If the response of the mic is not ruler flat, then the measurement is inaccurate. Dayton Audio has relatively inexpensive calibrated measurement microphones.

[@brobi2]

@@AudioJudgement Thank's for the reply. I'm just getting in to diy so it gets pretty confusing sometimes. Just ordered miniDSP Umik1, I think it will ddo the job for a while, since i'm a noobie :D

[@AudioJudgement]

@@brobi2 It will work, yeah. But you'll have to tinker with ASIO4ALL plug in when using it.

[@brobi2]

@@AudioJudgement sure . for now i am having trouble with t/s parameters measurement . any chance you can help me out? Build the test cables with 100ohm resistor but this new rew is screwing me up

[@AudioJudgement]

have you checked the 2nd video I made using the new rew?

[@ianhill20101]

Its possible to do it by ear with a sweep tone and a multimeter to monitor impedance plotting the variations and tune specially for our ear canal as no esr has a flat response but it looks far easier with a microphone. I suppose if we test our own ears and get a response chart we could build a speaker around that to sound flat to the individuals ear simular to ps5 take on headphones.

[@AudioJudgement]

You will most likely end up with a filter that will protect your drivers (tweeter from bass frequencies for example). But frequency response would be a mistery

[@nagyandras8857]

Beh... nope. First... woofers need a proper zobel. Tweeter needs a notch filter. Least try to aim for a useable impedance. Once you got your crossover point figured , you can use the corrected impedance to figure out the required parts. All of those have losses. So you modell the added series reactance . Then you work out the effect of those on the woofer qts. Only then its practical to design the box it self. And the required L-pad for the tweeter it self. But hey thats Just me..

[@jay1st1st]

Nice video but the volume difference between your voice and the music is too much

[@attainableaudio4533]

LoL, this seems like it's always the case... People that have to do with sound, ie; loudspeaker, recording, mixing, interviewers... Seem to have the worst sound, haha

[@BeckOfficial]

So basicly, building a pair of fairly good sounding cheap speakers is not possible since you need measuring equipment and experience with crossoverdesigns, enclosure and so on, before you can make something decent.

[@AudioJudgement]

Exactly! You can always follow some tried and tested DIY project if you want to build something yourself though.

[@robint6582]

ur online course includes these steps....

[@AudioJudgement]

Yes it does

[@bjtaudio]

The trouble is getting accurate measurements.

[@dantwomey]

You can use DATS to measure impedance with the speaker installed in the cabinet?

[@AudioJudgement]

Yes, but you will get the impedance of the speaker + box.

[@dantwomey]

@@AudioJudgement Is this still a useful measurement?

[@AudioJudgement]

@@dantwomey Yeah. You can find the resonant frequency of the box. You can check out the minimum impedance to know which amp you choose. Also you can troubleshoot unwanted resonances inside the box.

[@loudspeakerchefOriginal]

Pretty good on paper, however you forgot a very important step, the voicing. Things that look good on paper can sound very different when listening as there are too many variables left out of the equations in the software. Must voice it by hand, the final step.

[@attainableaudio4533]

So true, it's pretty rare that the first go round is how you want it, amazing how even 1db can make a difference, but I can see why he didn't include it on the video, kind of hard to convey personal preference in voicing. I do like how he takes the additional step to get the delay measurement at the crossover region, most hobbyist don't do this step.

[@jeffm2787]

Best passive crossover is the one not built 😁 Built some in the past, measured, made changes, rinse and repeat. i.e. the only part I got right was verifying the results.

[@dhruvmeena96]

why not simulate diffraction in Vituix Cad, with baffle measurements and driver SD, and the manufacturer datasheet, you can pretty well do it................... just that the complexity starts to increase even more and more as we dive deeper in the software and Sim meanwhile, very nice video and the best way is to measure the speaker and then making crossover

[@attainableaudio4533]

If you don't have the enclosure and it's the only way then I can see going thought the sim to get close, but if you already know what the enclosure will be why not build it and do it "right", but yeah if your going to be experimenting with different driver layouts and enclosure shapes I can see the advantage.

[@akhtarizod5802]

Did not learn anything other than its difficult to design crossovers and promotion of your crossovers design course !plus under course title and crossovers diagram showing wrong orientation and positions of inductors ,

[@VicariousAdventurer]

Just a little bit critical "Of course he got terrible results. He did not even use the manufacturer data to Zobel-compensate the woofer" T-S data isn't there for no reason. It just would have been more believable starting point than only a "crossover calculator."

[@VicariousAdventurer]

But also a series Linkwitz-Riley can avoid the phase mismatch between tweeters and woofers that will creep into the more common parallel crossover. Starting with compensation and a more robust design in the first place might have led to less dramatic initial results...

[@thanhphatlife4588]

too complicated

[@armandorancano6415]

A very difficult to follow video. Learned very little. Explain verbally, slowly, rather than speed up through just images.

[@sj1260]

Those calculators don't work for shit. I was the head engineer for Dunlavy audio labs. I pretty much did every loudspeakers crossover empirically. Calculators will never get you close to a flat frequency and phase response