Design a Speaker enclosure for Free using WinISD!

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In this video I go through the process of designing a speaker enclosure using free box simulator called WinISD
I talk about design methodologies, as well as how to get a smooth frequency response.
In Part 2, I will go through the process of designing an enclosure from the volume and port data produced from WinISD.
0:00 - Intro
0:35 - Limitations
0:45 - Space
1:44 - Space - Openings
2:18 - Space - Sacrifice
2:33 - Power
3:31 - Financial
3:53 - System Goals
4:34 - Choosing a Driver ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-dth4gP7i7d0.html
5:15 - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-dtQdO2rJWH8.html
5:31 - How to measure speaker specs (Coming Soon!)
6:54 - WinISD
7:39 - Speaker T/S Specs
9:10 - Specs Inconsistencies (Driver won't save)
10:34 - Inputting specs
12:50 - Speaker specs Explained ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-jASaNuQ1-JQ.html
13:11 - DESIGNING A PORTED BOX
14:42 - Tuning a ported box
15:36 - Cabin Gain VS Free air
19:40 - DESIGNING A SEALED BOX
20:52 - Enclosure tips and tricks
26:13 - Max Power, Max SPL
27:50 - Negative Vent Length
28:34 - Port length and area
LINKS
WinISD - www.linearteam.org/
Dayton DATS speaker analyser - www.daytonaudio.com/product/1650/dats-v3-computer-based-audio-component-test-system
Port Area - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-nxKkM4bXPFI.html

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Опубликовано:

24 дек 2020

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Комментарии : 41

@jay1st1st 3 года назад

At last someone with the brains to explan it for the simple mortals like me !!! Thank you very much !!!

@puresesh7985 3 года назад

Just when I was thinking of doing a video like this you do one damn it!. Good content as always merry xmax :)

@Dakoustics 3 года назад

Heh cheers, merry Xmax!

@gianstevens7918 3 года назад

Do one anyway, a second opinion doesn't hurt anyone :)

@gianstevens7918 3 года назад

Dak this was an amazing video really, would you be willing to make an actual box design and show us the real life performance and actually show us what cabin gain does? I don't know if you have the tools to measure the actual result as in SPL and frequency response; But that would make an amazing follow-up video, especially since you discuss cabin gain so much at the end.

@Dakoustics 3 года назад

I've got the tools, spl meter, not a real RTA mic, but most mics are relatively flat so it shouldn't matter too much. I should tackle it shortly.

@gianstevens7918 3 года назад

@@Dakoustics would appreciate!

@noncog1 3 года назад

As someone who used to sell dd, and now sells gz, I liked the sub choices, lol

@noncog1 3 года назад

@Weston Elijah eat

@noncog1 3 года назад

@Shepherd Flynn horsemeat

@reggiep 3 года назад

Great explanation but the hell with it..... been designing and building boxes for over 20 yrs..... brain power and experience hasn't failed me one time......

@Quetzalcoatl0 3 года назад

17:25 wait. I though winISD box size was without the port. So if you have a 60 L box, no matter the port size and length, the box size without the port has to be 60L. So if you include a 10 L port your box becomes 70L for space in the boot.

@Quetzalcoatl0 3 года назад

I never though about it, i just "knew", because when port volume changes the box size didn't so ye. www.subwoofer-builder.com/WinISD.htm 'Note that the volume shown is the Working Volume, and does not include the space occupied by the driver or ports'

@Dakoustics 3 года назад

Yeah, total box volume for the design would have to take that into account, but WinISD doesn't take into account port volume. Part 2 will go into more detail.

@gianstevens7918 3 года назад

@@Dakoustics "but WinISD doesn't take into account port volume" What do you mean by that? Port volume is easily calculated by getting the external dimensions of the port depending on wood thickness etc no?

@Dakoustics 3 года назад

@@gianstevens7918 What I mean is if your enclosure is 100L, you can create a 100L port. WinISD doesn't adjust enclosure volume to maintain tuning once port displacement is present.

@gianstevens7918 3 года назад

@@Dakoustics right so you mean, if your max available volume is say 100L and your box volume is 60L in winisd which you've tuned to say 30hz and your port is 40L. But, you increase the port in size without realizing to 50L, winisd will not automatically adjust the box volume down to 50L. Right?

@stanleysgill 3 года назад

Okay, I have a question. But first, what I am putting it in and what I'm looking for. I'm going with a 12" sub, sealed, but, I want to make it a down firing box. I don't see much on them anywhere. The reason for my choice is it's going in the place of my center consol of my Crew Cab F250, because behind the rear seat is pretty compact and better suited for where the amps should mount, and I am already building a center console to extend to the dash. So, my questions are, what would be the cons of using a sealed down firing box? And what would spacing from the floor affect the output.

@Dakoustics 3 года назад

As you know, in audio, there's always a trade-off. The main trade-off of a down-firing woofer is limited high frequency response, which doesn't really affect a subwoofer, so you're safe. The benefits are better coupling, downfiring should have a better output than if it's facing upward. I wouldn't wanna space it too far off, or too close, a balance of cone travel allowance and airflow is needed. Something like, Xmax + (Driver diameter / 6), so for a 12" sub with 0.5" xmax, it'd be a gap of 2.5". For a 15" with 1" xmax, 3.5".

@faysalusman 2 года назад

The box volume in winisd tells the net internal volume (gross volume minus the woofer displacement and any space occupied by bracing) or does it tell the gross volume ?

@jimthvac100 2 года назад

I cant really follow along I have WINISD loaded up but it looks nothing like yours mine is version 0.7.0950. completely different.

@n0tch66 3 года назад

Happy Xmas Dak :)

@KidCoyle 2 года назад

I love your presentation.

@myevilbanana 2 года назад

Great video, do you use the cone excursion graph in winisd? I’ve been playing around with it to get a idea of power handling in a given volume was wondering if it’s accurate or just gets you in the ballpark

@troybakker7628 Год назад

Idk the one from vituixcad is decently accurate. I designed a enclosure for a dd506d2 When i give it like 100 watts it has like 1 cm of excursion and vituixcad says about the same i think

@troybakker7628 Год назад

But its 1 way so if you compare it against xmax ur fine (cuz thats also 1 way) but when u compare it to the xmech of the driver u should do the movement of vituixcad x2 (cuz xmech is peak to peak i tought)

@budgetaudiophile6048 3 года назад

How do I build a subwoofer enclosure? I'm a n00b

@anandshah71 3 года назад

I am not technical so can’t execute these steps, is there a service who can make box design and give me I have a carpenter who will make according to plans I have lot of drivers from peerless tang band Purifi etc but don’t know what boxes to make.

@Dakoustics 3 года назад

I believe HexiBase does enclosure designs for Audio Dynamics, as well as JeepAndBass. Check their youtube channels. Other than that, try local PA suppliers, someone who works there might do box design if they do custom systems for local venues.

@aaront2172 3 года назад

Does winisd have a option to see cabin gain?

@ytb13 Год назад

yes linguitz transform theres multiple videos on youtube

@terik555 2 года назад

wheres a safe website to download winISD

@snakeradish 3 года назад

All I see are lines and graphs, I just want to build it in 3D.

@cornman-re5th 3 года назад

Speakerbox Pro lets you design it in 3D or you can use CAD but it wont take parameters

@snakeradish 3 года назад

@@cornman-re5th thanks. I was looking at SBP but I would like to make a wedge style with a divider but couldn’t figure how in that software. Was looking at Term-PRO but too pricey for myself just to build one box.

@cornman-re5th 3 года назад

@@snakeradish yeah i have issues finding good software too. Some say that speaker building is all about compromised but as long as it sounds good and looks good, im happy with it. I use the12volt.com box calculators to calculate volume and winisd to do the rest of the port and box tuning.