Pete has plans to remake the video without the rocking boat effect and with additional information

@hashtaglobotomy2655

5 жыл бұрын

I didn't even need to watch it to make it make sense. Pete does a great job of making things make sense. You all just keep up the good work. Kudos to you guys And Pete!

@spamcan9208

4 жыл бұрын

Good because I couldn't watch this at all, it was giving me a headache. That's the worst way to record this kind of video.

@KiLLclangames

4 жыл бұрын

Is the higher order more important

@hidalgoalejandro

3 жыл бұрын

I developed a headache and almost trew up. Pity on such a great explanation.

@briansepolen4917

3 жыл бұрын

Waiting?

Sea sickness aside, this incredibly well presented and easy to digest .Well done . I can stop scratching my head now.

Didn't even notice the head movement till I read the comments I'm here for the knowledge thank for the info Pete.

I got sea sick trying to watch this.

Just the first 51 seconds of this video were a real eye-opener for me. The idea that you can demonstrate capacitive and inductive reactance in a physical domain has made me more comfortable with the concepts purely in an electronic domain.

I can't take all of the moving around. It gave me a 6th order headache.

I feel sea-sick after all that random motion. Informative though. Thank you.

I'd love you to remake this video for your HexiBase vlog

The GoPro was a really bad idea

Damn I'm getting sea sick

got seasick ... immediately

motion sickness set in and Puked!

Really unpleasant to watch. Made me nauseus. I really like your videos otherwise. Didnt get much of what you said here because of the tilting

Long ago I was an electronics technician in the military. I learned about RADAR waveguides as transmission lines and calculated reactance, capacitance and inductance in them as part of my education. It has never occurred to me that the same principles apply to acoustic frequencies. Very interesting. And, yes, I feel sick now. It helped a bit when I reduced the video window to a small corner of the monitor and watched from across the room.

Thanks for the explanation! I've always been curious about what the different orders were and bandpass and all that and this explains it all perfectly!

Awesome video!! A little too much camera movement in the video though. Cant wait for the next video in the vlog!

I doff my cap to your sheer simplicity and elegant presentation, Peter!!! You have demystified an important concept so beautifully. Totally subscribed to your channel!

Please remake this with a static camera.

@jeremymanick5684

5 жыл бұрын

Its giving me a headache lol

Pete that is a very clear explanation/presentation and I look forward to what you will be brining up next.

Hybrid Bass Reflex Transmission Line T-Box... TTB days..Your design for me eons ago...FTW! Thanks again Pete!

Great info in a fun easy learnable movie. Can you please make this without the head cam. I do really use your videos for my lessons on thermodynamics and if you would like to backup the statement you sad in the introduction for the production. Thank you keep up the great videos Hondaman6

Excellent presentation !!! Thanks a lot !!!

Very Happy to see you have an enclosure design service for other brands too :)

Thanks for the info & bob Ross white board drawings 🔥 Can you elaborate more on the difference between the 4th/ 6th / 8th series and parallel bandpass? And how the ratio affects size and tuning ? Does Audio Dynamics have high sensitivity subs with good frequency response with decent Xmax and FS of 30-35? I am looking for one or two subs that will like 1500 W RMS. My Q40 ( G37 ) has a metal wall separating trunk and cabin with a ski pass thru only. What would you recommend for best frequency response and output enclosure and sub wise?

Thank you for making this video, you've clearly explained what i've been looking for an answer to for months.

How do thesr ports affect each other in reflex 4th and 6th orders, opposing to the bandpass versions?

Hey, I've got a couple of old klipsch pro media subs, what could I do with them to make something better out of them? Broke as a joke, so any ideas would be appreciated.

Thanks for making the video, but I can't watch it because of the movement. Is there a non vr version?

Excellent videos AD !

What is the video link to the video for your 8th order build with the dayton audio sub?

Well explained, I went from loving audio to Making sub boxes using the principles I learnes here..

Do scoop bass bins fall under 4th order band bass?

Mind blown. Best explanation of this I have seen sofar. Thanks for the great info

I got motion sickness just watching.

Yes please for the static camera. Great videos but the movement gives me a headache

Very well understood. However, what are these orders aimed to achieve when listening to these speakers ?

Great videos keep up the good work

Do you have any advanced material to suggest in order to study it deeper?? I mean, regarding interferences between waves it could be more easy, but for what concernes capacitance and reactance, i would like to study what happens when more chamber are tuned in series and so on... Thanks, Francesco.

You're knowledge blows my mind, and you're actually very amusing lol. Subscribed 😊

Hi. really good explaination, I understood everything, but I have 2 questions. First: In WinISD it is possible to simulate "ABC" enclosures (like a series-tuned 6th order bandpass + port out the rear chamber too like on the parallel one). It is an 8th order enclosure, or it needs to count the acoustic orders differently somehow? If I understood correctly your presentation, let's start with the 6th order series tuned bandpass, then + port outside the rear chamber = inductive reactance which brings it up to 7th + interaction = 8th? Second: I know that passive radiator is basically a port = inductive reactance. I had a Philips HiFi which have the "wOOx" speakers (I dont remember the model number now...). On the front side of the speaker were the active woofer and the passive radiator (wOOx woofer), on the rear side was a regular flared aeroport. If I am correct, the passive radiator was tuned for the low bass and the regular port for the higher bass (the port was short + the enclosure itself was not too big for the woofer's size), but I am not sure that I understood this sepeaker system correctly, because one chambered enclosure with two tunings is strange for me. So how I should count acoustic orders at an enclosure like this Philips wOOx?

When I was a late teen.. We had gotten a hold of a box for a 10" sub that they called a "hidden chamber".. That little 10 got loud.. at least for the fact it was just a single 10 on like 100 watts. I never seen a box made like that since, until today in your sketch up of a 6th order bass reflex. I wonder what the gains look like on those??

Thanks for a great video...very enlightening! Using your system what order is a Augspurger style Dual Chamber Reflex? The roll off is fourth order I believe.

Could you male a video to explain the differences between them please?

Can you Isobaric load all of these?

The rocking wasn't bad once you got a minute or so into the video. Y'all need to quit complaining. You did good Pete

This wealth of knowledge is so valuable and potent its like Fine Wine, Pure Gold or Expertly Crafted Chocolate Milk Im subscribing

What would you call a 6th order series tuned with woofers on the inside where they normally are and woofer on the outside of the enclosure with the back wave on the inside of the bottom chamber?

@commonsenseisdeadin2024

27 күн бұрын

a terrible sounding enclosure! you'll experience cancelation and loading issues. you MIGHT be able to get away with it if you used a passive radiator but I think cancelation will still be inevitable!

Me: I'll build a sub-box for my car as soon as I figure out what all this stuff means Also Me: I guess I'm never building a sub-box for my car

Thank you for the video but I could not watch it to the end as I got seasick. Camera mounting this way is not a good idea. Hope you will redo th video so I can watch to the end (and learn from it).

I think a 6th order is right for me but I don't know how to tune one. Any tips?

could you do a video explaining how port size and length affect spl

This was super helpful!!!!!!!!

Just have to ask . A Quad electrostatic or open baffle how would you class their order . I am thinking possibly a second . It's not a first or forth or higher.. Or should I consider the room in the equation as part of a cabinet. Also all your videos are very interesting keep them coming

6th order parallel bandpass is my favorite. I made it so the ports where next to each other. Slot ports and sub faced inverted motor up, dust cap chamber had a long 2.5" port thatwent along back wall and cornered along the top out the front, the coil chamber was 3" and was a U shape below dustcap port. Sub is a Memphis Audio HPO 15D4 @2ohms on a Crunch DRA850.2 not sure rms watts.

Nice great information 👍

Great video! Could you touch on things like port and subwoofer positioning to control cone displacement within the chamber, maybe touch a little bit on the fluid dynamics within the chambers or port. Why compression in aero ports functions better over slot ports for example, or some information on the acoustical relationship between amp and sub, dampening, how impedance functions in a relation to cone displacement the order of enclosure etc. It would be great to hear some thoughts in series/paralleling or vicecersa or combination down multiple drivers and how best to acheive balance of resistance between all drivers and how an amplifier internaly copes with impedance changes over frequency. Keep it up mate good to see you back on making videos!

Yeah....I can't watch. I got motion sickness also.....

@ytkeebOo

4 жыл бұрын

mee too :D (so interesting but...)

Dang it...all of this time I've been debating whether or not I wanted to stay with a ported box or do a "4th order box". And all of this time I've been running a 4th order...🤣🤪🤔. Thanks for this great video!

In the manual for the Logitech Z906 it says the sub is a 6th order bassreflex but it only has one champer and an U shaped port. I feel confused tho a 6th order enclosure has two chambers and two ports (according to your example) so I guess Logitech is lying?

Sooo… what if you done a 10th order. Would the bass from a single 10” sound same 2 15s in a 4th? Or does adding “orders” actually add bass?

@commonsenseisdeadin2024

27 күн бұрын

no it does not add bass. Its for tuning and air volume.

Why is the 6th order parallel tube bandpass filter not a 7th order? Because the inductor would raise it by 2, however the interference would be raising it by 3?

I got a fucking headache from all this movement. What am I on a boat? Just mount the camera somewhere jesus christ

Ok I'm going to go old school here. Back in the day we quite often ran an entire system off of 1 two channel amp, the nicer amps were capable of 'tri-mode', highs in stereo and your sub(s) bridged mono, because of this setup we had passive crossover networks. For a while I ran a 6th order parallel tuned bandpass, but because of the coil (inductor), it was considered a 7th order bandpass. How does an inductor fit in when calculating orders?

@mustang351c4

2 жыл бұрын

the crossover doesnt count towards enclosure orders. crossovers are electrical orders. boxes are acoustic orders.

Silly question, but why do we want different stages? Is a 8 better than a 4?

@commonsenseisdeadin2024

3 жыл бұрын

bandwidth

Am I the only one suffering vertigo watching this video? I'm down for the info but legithave a tendency towards vertigo and this video is over-the-top for me.

Finally... I get it.

This camera shaking is really annoying, but great infos, thanks. Though I'm notsure I understand everything yet, but I'll watch your other vdeos to learn more. :)

is it an other order when a sub is ported like a snake/maze from woofer to exit port?

@bassheadgoboom3992

5 жыл бұрын

Is it a single port in the box? If so... the shape doesn’t change the order... just SQ.

I'm slightly confused on how the ported enclosure is a 4th. I keep counting 3 orders. What are the individual orders of this setup.

@UniCrafter

5 жыл бұрын

1 is infinite baffle. So, it starts at 2 being a closed back. Add one for the port, then add another one for the front wave interacting with the rear wave. 2+1+1=4

So a simple "sealed" enclosure but using a passive radiator is a 3rd order enclosure?

No 5th order arrangement is possible? If I order a 4th order subwoofer and it doesn't show up and then I have to reorder it, would that then be a 5th order subwoofer?

Nice Video!!

Can you install these in vehicles? 🚗 Or are they optimized for home, where would one benefit the most from using an enclosure like this

@ADDesignsCarAudio

5 жыл бұрын

adcaraudio.com/products/enclosure-design/

@Speadraser

4 жыл бұрын

This link is dead

Maybe its because you were jumping from 7th to 8th order just for the example of an 8th order... But how would you get any sound from the 7th order?

Very enlightening and nauseating :)

G'day Pete, Reporting as directed... Fascinating, I had no idea that this was going on...; let me guess - your Grandfather was a Woodworker living in a Forest, cleverly carving & whittling those little Nesting Dolls for which Tourists love to pay lots of money ? This-all makes the crude "Speakerboxes" which I carefully cobbled-up as a teenager, with Speakers salvaged from old Televisions & the Amplifier-Circuit from a Record-Player....; even more hopelessly shitty, technically speaking, than I remember realising them to have been - ten years after I built them when I was trying to sell Bang & Olufsen Hi Fi in North Sydney...(!). Have a good one, ;-p Ciao !

does higher orders give lowers bass from the same speaker ?

@commonsenseisdeadin2024

3 жыл бұрын

No, it will give you multiple frequency peaks from the same speaker. Tuning will give you lower bass and a driver made for it.

it's great to understand the design characteristics that define each order. how about a part 2 that gives everyone a clue as to WHY one would use one design over another. Please do this on Hexi Base. Oh BTW you did not mention Open baffle (it is different than the theoretical infinite baffle) and the Bi-polar (no I don't mean crazy) design - I think it might be a form of Isobaric loading. last but not least. there is the wonderful Maggi. (Magnaplanar) I suppose that's effectively an OB design?Awesome channel Thumbs up on almost every thing you do.The "Matt Scientist"

Had to pause vid to ask a question. What’s the point of a second order then? Is the resonance of the box the only thing we’re looking for?

@pim_kahlert

5 жыл бұрын

With a 2nd order (sealed box) it is easiest to achieve a low Qts factor. A low Q(ts) gives more control over the driver movement. This gives best dynamic response and the most accurate sound reproduction. However the efficiency is usually lower. Also, a lower order has a lower roll-off on the ultra low frequencies. With good design, a sealed box hits lower notes than a ported, although the maximum SPL is probably lower.

@jus1taj

5 жыл бұрын

@@pim_kahlert Hmm, thats interesting. Thanks for the reply. Working on putting two RF tens in a sealed box for my first set up. I'm very excited and learning a lot!

@pim_kahlert

5 жыл бұрын

@@jus1taj You could use a (free) program like WINISD to calculate box size for your desired Q and frequency response. As long as the box isn't to small, a sealed box, with the right driver, is hard to mess up though. Have fun with your first build!

The term "HIGH" in what you call "high acoustic order."..? Do you mean higher SPL ? or Higher Frequency? or the doubling of sub frequencies? ...Please explain.

@krishnaraja7256

5 жыл бұрын

higher the order quicker the attenuation, amplitude reduction

I'm a big fan of your knowledge and presentation style. However, I cant watch this one because the video makes me nauseous from watching even a little. Holy moly. If this information was available from you in text or your recent excellent video styles, I'd watch a few times.

I've heard that Bose has a patent on 6th order bandpass and they cannot be used by anyone for commercial products. Is that true?

@StonefieldMusic

5 жыл бұрын

@@commandercontraband ??

@FSXgta

4 жыл бұрын

that is the most stupid thing I heard, you cannot patent a enclosure type. They maybe patented a name but they can't tell me what to design or not design

@mcanderson0

3 жыл бұрын

@@FSXgta you do understand that the purpose of a patent is to protect a novel DESIGN from copyright infringement, right? Lmao

@FSXgta

3 жыл бұрын

@@mcanderson0 yeah but you can't copyright a box with tho chambers and ports. That's like making air illegal and nobody would respect it

Which order amplifies the bass wave the most? I'm referring to the wave that I physically feel outside of my car when the sub is flexing. What box will make my 8inch sound like an ok 12inch in a basic ported box. Any chance you can make a video about this subject? Thanks great vids.

I'm dizzy 20 seconds in. Stop moving your head so much 😭

Yeah Pete, give us the knowledge. You definitely have plenty of it relating to acoustics

Can you give an example of a valid 5th order? I see some examples of it elsewhere, but they are never clear.

@Digital__rb

5 жыл бұрын

Mark Shade would my vented box with 2 vents qualify as a 5th order? If a normal vented box with 1 vent is a 4th order?

@Blacktronics

5 жыл бұрын

​@@Digital__rb Don't take my word as fact, i am just getting into this too, but logically it would still be a 4th order bass reflex. Two ports in parallel with a cross section of _A_ should behave equal to a single port with the cross section of 2 * _A_

+ADDesignsCarAudio Pete have a sundown audio EV3-12 6th order parallel bandpass enclosure for home theatre and musical use 5:1 ratio rear chamber 49.8L tuned to 26hz front chamber 75.5L tuned to 50hz it sounds great I wish it was a bit louder I’m putting 750WRMS in to the sub

@williamnixon4056

5 жыл бұрын

Port size or the subwoofers ebp may be an issue.

thanks!

Okay I'm going to ask a noob question so don't hate me because I'm pretty new to this. Why would I care whether or not I had a fifth order or higher enclosure? What is the advantage of these? I understand the difference between first order through 4th. But once you get to 5th and higher I just don't see the point

@Str8GasGenetics

5 жыл бұрын

More bandwidth and/or efficiency. Ronnie hitting 150 with a single 8 was a 6th order.

Are you really moving your head that much? Sheesh, your poor neck.

Well explained. So just to be clear, beyond 3rd order, they are all even numbered? No 5th order, no 7th order, no 9th, etc.? Thx.

@Xenro66

3 жыл бұрын

If we're to take this video as gospel, you'd have to find some arrangement of the orders such that at least one side of the speaker has a path to the outside world. Hopefully I've understood this right: 5th order: 1st: separation. Put it in a sealed box, that's 2nd due to capacitance. Add a port, thats 4th because 3rd is inductive, 4th is reactive. Put a box around the port, that replaces reactive with capacitive. Then put a transmission line over the front of the driver, which is inductive, that's 5th order. 7th order: This is a little complicated to imagine... But I'll try it anyway. 1st: separation, 2nd sealed box, sealed box on the other side with a port, we're up to 4th. Sealed chamber after the port, that's 5, but both sides of the sub are now closed, so add a port to the first sealed box, we're up to 6... Then the only way to add a 7th is via induction, so make a long, wide port (transmission line) after the port you just made. 9th order: Just insane. Take the exact same thing as 7th, but the only sealed box you have, put a port in it. That adds 8th, inductive, and 9th, reactive with the front and back wave. If you're struggling to visualise it, I made an image in paint lmao. i.imgur.com/9fT65IL.png Hope this helps! :D

Well, I now understand why I had to learn state-space. Modeling these must be a dream lol

I really want to watch this, but I'm getting motion sick. Later.

Could you do a video on how different styles of say 4th order reflex boxes can load one or more subs within them? Or literally any video on box design tips and generalizations?

@collinbpeep

6 жыл бұрын

HexiBase Thanks for the reply. I know it wouldn't change change the acoustic order, but depending on design it could change the parameters of individual drivers in a multiple driver configuration, right? Like exocontralto's Frankenstein build that he is about to dismantle to create a new build. By multiple vents do you mean two vents in parallel or cascading (parallel seems simple, but sequential ports are more than i know how to do), aka vented 4th vs bandpass 4th? The types of reactance and how they differ in end effect is something I can't say I understand truly. Theory and practicality are different but you seem to be one of the more knowledgeable KZread audio guys on how both work together and therefore can get the results you desired. Btw I miss your vids on Hexibase.

What would you call a 4th order bandpass inside a ported box?

What would a 5th-order enclosure look like? How would it function?

@deusmeusestfons

5 жыл бұрын

@Zarazel 741 Or perhaps just add a port to the front panel of a transmission line.

@deusmeusestfons

5 жыл бұрын

#AudioDynamics Are either of our theories correct?

Tanks

whats the difference between an 8th and a quazy 8th?

@williamnixon4056

5 жыл бұрын

It's simply a reference to the type of alignment. As depicted in the first illustration of 8th order I believe.

Two thumps up for Bob Rossing! XD

Now I undestand what means "3rd order". So now I have a strange idea, maybe it is totally wrong idea, but let me explain it first: 1.: simulate for a woofer the Vb and Fb simply like at a standard vented box (4th order bass-reflex), 2.: add all the displacements to the Vb, just the port's displacement do not add, 3.: design a tube-box with that volume which have the same internal diameter like the woofer's cutout diameter and outer diameter like the woofer's total diameter (or bigger - just to be able to install the woofer correctly into the box), 4.: design the port (length) for that woofer / Vb / Fb using the same internal and outer diameter like at the box, 5.: now, we know the port's and the box's internal and outer diameter, the port's length, and the total internal box-volume (Vb + displacemets), so the box length can be determined, 6.: make a tube with these internal and outer diameters, and tube length = box length + port length. So this tube will look like the drawing in the presentation, but in real world this will be not usable because of the huge length, only if you make a labyrinth of that. My question is: this will work like a 3rd order, or a 4th order, or it will work well anyways? Btw, sorry for my bad english

@commonsenseisdeadin2024

3 жыл бұрын

That would be a transmission line I am pretty sure. however there is no "chamber" per se', It is all port.