How To Design Build And Test | A 6th Order Bandpass (Parallel )

Рет қаралды 68,734

Күн бұрын

Watch me design, build and test a parallel tuned 6th order bandpass enclosure and compare it against a bass reflex enclosure. Are 6th order bandpass enclosure better at SPL than bass reflex (ported) enclosure? The results may shock you. You can support my channel by following the affiliate links below. Thanks in advanced.
Amazon Shopping Links (affiliate):
CT Sounds MESO 6-5 Subwoofer: amzn.to/3LZ0rr2
TarAmps MD8000.1 Amplifier: amzn.to/3MprtrV
Audio control LC2i: amzn.to/3UmSpeE
SPL-Lab Mini Bass Meter: amzn.to/3FG6vDv
SMD Tools: amzn.to/3Umx8BK
SUBWOOFERS -
Massive Audio Hippo: amzn.to/34rG01g
Toro Tech Force 12: amzn.to/37Bd3SK
Resilient Sounds Gold 12: amzn.to/2KIXbEp
Sundown Audio SA-8: amzn.to/3fa5Ryt
Sundown Audio X-8: amzn.to/3b3MVyp
Skar Audio MA-8: amzn.to/2yj0Wus
Skar Audio ZVX-8: amzn.to/2KQf0OQ
Skar Audio VXF12 D2: amzn.to/3a5ep6e
Skar Audio SDR12: amzn.to/375fkSz
Skar Audio SVR12: amzn.to/2tB6vCd
American Bass XFL12: amzn.to/2S8OlRX
Audiopipe TXX BDC412: amzn.to/38hRtQM
Power Acoustik MOFO12: amzn.to/2S687xg
Subwoofer Enclosures -
Skar Audio SK2X12V: amzn.to/30lwo5R
QBomb Dual Vented Horn: amzn.to/30klUDV
Speaker Wires:
Skar 12-gauge OFC speaker wire: amzn.to/3rnPFyG
Tools -
Oscilloscope Multi-meter: amzn.to/2z44pgN
Audio control LC2i: amzn.to/2VGzNeh
SPL-Lab Mini Bass Meter: amzn.to/2Xu7vU0
Play Lists -
Learn More About Band-Pass Builds: • Band Pass Builds
12”Competitions: • 12 Inch Subwoofer Comp...
Skar Audio: • Skar Audio
American Bass: • Skar Audio
Power Acoustik: • Power Acoustik
AudioPipe: • Audiopipe
Impala Sound System: • Impala System
Learn How To Count Acoustic Orders: • Counting Acoustic Orders
DISCLAIMER: This video description contains affiliate links, which means that making a purchase, after following the links, supports the content of this channel. Thanks in advance.
Links to all the products featured in this video can be found in the description section below. All purchases do support the channel; enabling us to bring you more valued content such as this. Thanks in advanced and happy shopping.
Chapters
0:00 - Intro
0:50 - Purpose of This Build
2:22 - About The Enclosure
4:09 - Bass Sweep (studio)
635 - Music Test (studio)
12:20 - Tissue Test (studio)
16:25 - SPL Testing ( 6th Order )
19:34 - Bass Reflex Box
21:40 - Bass Sweep (bass reflex)
23:00 - SPL Test (bass reflex)
26:50 - Final Thoughts
27:15 - Bonus Footage
#CTSOUNDS #MESO-6-5 #BudgetBasshead

Пікірлер: 243

@anthonyfejeran1891 Жыл бұрын

Man when I saw how the tuning affected the way the paper was moving from side to side kind of blew my mind. I mean I know how it works but just being able to physically see it was so satisfying. I love it man. Keep up the great work and content. Thanks for sharing.

@ponokanaka Жыл бұрын

True. But when it got lower the plexiglass was flexing a lot. It was nice to see it in action though, but I’m glad he made a solid top. This is a nice box, awesome for a 6.5 single sub. I’d love to have that bandwidth

@uncletacosupreme7023 9 ай бұрын

Right. The paper on the left side didnt start moving until it started into the lower frequency.

@liftedcj7on44s Жыл бұрын

I absolutely love 6th orders, as you can see from my profile pic I have 8 12's in a series 6th order wall. I have my small chamber (rear) tuned to 24hz and my large (front) chamber tuned to 48hz. I do a 160db@23hz and a 162.3db@36hz. From 20hz-70hz I never drop below 158db. It has crazy bandwidth, sure I could build a flat wall and be louder but I like to demo and having that kind of bandwidth is amazing. I can play down to 17hz also and still be at a 154db.

@BudgetBassHead Жыл бұрын

I would love to see that build!

@solomongainey838 Жыл бұрын

I'd love to see it too. 6th order has been on my mind lately for my daily driver, hate to go thru the trouble of buying mdf, building the box and having it not meet my expectations how well does it compare to a sealed enclosure?

@KnowName33 Жыл бұрын

Nice I had a huge 6th order and 1 under powered xmaxxx monster 15 and I loved it my peek was 24hz lol I did 148db at 24hz sealed at the headrest and 142db at 19hz sealed at the headrest and my meeter won't read below 19hz so idk what it did but I could play down to 16hz before losing compression

@Idrinklight44 Жыл бұрын

Awesome!!!!!

@rndmlogin Жыл бұрын

Im still pretty blown away by how capable these little drivers are.

@nikgosser3035 Жыл бұрын

They really are amazing I had 4 in a very low tuned enclosure on a strapped pair of ct2000.1ds and nobody believed I was only running 6.5s

@CajunReaper95 11 ай бұрын

⁠@@nikgosser3035yeah these little 6.5 subs nowadays hit low in the right box with the right amount of subs.

@yeahitskimmel Жыл бұрын

That tuning visualization was awesome!! Never thought about how the enclosure could be dual purpose. One port for video FX and one port for music

@romero71chris54 Жыл бұрын

Great concept and a very informative demonstration to watch. Regardless if it's parallel or not it's still a sixth order bandpass with efficiency gains across the board. Thank you for all the time and effort to give us bass heads what we crave.👍👊🙏

@BudgetBassHead Жыл бұрын

Glad you enjoyed it! Thanks for the support!

@unklho Жыл бұрын

When I was in college in the 90's my uncle gave me a box he pulled from a trade in car at his dealership. It was small carpeted box sealed on all sides but had a 4" PVC port sticking out of a small box about 4 inches long. It played louder and lower than anything I had heard at the time and was a single Orion Cobalt sub inside that box. Love 6th Orders, deep and clean.

@anthonybochman761 Жыл бұрын

So I new the concept of how it works but to see it in action working the way it should was pretty awsome!! Nice job and thanks for taking the time to show us viewers. Def appreciated!

@allpaulsfault Жыл бұрын

Man absolutely loved this video. Thank you for going through the trouble and work. I tune all my ported enclosures to 25Hz or if it’s only a 10” I may go to 29Hz. I listen to the low stuff. I have 2 trucks with blow throughs. You have motivated me to try a 6th in my daily. Currently enjoying my 2nd year with a 4th type and ready for something new.

@beograd07 Жыл бұрын

This is nothing new but well demonstrated. Bose Acoustimass AM5 bass module is built in this parallel 6th order. 30 years old AM5 and it is still working in my computer room attached to my PC amp. Off course Bose AM5 bass module is tuned much higher (40-120 Hz) and the roll of on 40 is very steep but the principle is the same. They managed to make a very small box with 2 X 5-1/2" drivers and they put the driver's panel on the angle so they can make the box even smaller. Very smart. On the angle the driver panel can get the bigger diameter drivers keeping the top and bottom of the box the same distance. Very primitive with only 2 port tubes but it works. Now after I saw this video I am thinking of building the replacement bass box for my AM5 with lower tuning frequency. Building the box will not be a problem but finding the right drivers for it, that is another story. Looking at your presentation I can see the huge Xmax on your CT driver and while it is OK for a higher frequencies (40 and over) I dont like when the driver is moving so much at the lower frequencies. Something is not right in calculation for the under 30Hz in box design as it seems to me the driver is close to the Fs in that range. I know CT can handle it because of its huge Xmax capabilities, but it shouldn't on lower frequencies... Only my opinion, I may be wrong. Either way thanks for this presentation it made mi think about it now.

@kitkimbrough9441 Жыл бұрын

That was a really ammazing way to show what really happens in the enclosure!!!...I now understand so much more by just watching the airflow with the tuning device in frame, at the same time with an easy clear explanation of what is happening, the why, the how, the when, even the if!!..lol !!..Great job!!!..👍.

@travisswann6264 Жыл бұрын

Awesome vid! Visual affect of “confetti test” brought simplicity to what is sometimes difficult for people to visualize! Great real world tests, parameters, and applications!

@ponokanaka Жыл бұрын

Oh I’m glad you topped it off, that plexiglass was flexing

@Mark_5150 Жыл бұрын

one of the best car audio channels. thanks

@CasaDeJoker Жыл бұрын

This reminds me of a 1990’s 6th order bandbass unit B-8 or B-10 by a company called Collins Sun Electronics or Collins USA. I had the B-8 and that had a port on one side and a smaller port on the other and it 8” sub would take and sound REALLY AMAZING with a Punch 200 bridged to 900w RMS. Nonody would believe me when I tole them it was 1 -8” speaker 🔊. Their enclosures were black laminate with Fleckstone “granite speckled end caps. Some even came self amplified. They had tubes and cubes but the rectangular B-8 & B-10 were my favorite with almost ZERO distortion. Simply amazing and ai love this channel because this man builds things that I haven’t seen in a LONG TIME like the one with the “Infinite Baffle” aka Free Air 18’s so awesome! ⭐️⭐️⭐️⭐️⭐️

@TopgC04 Жыл бұрын

Just a tip, when a sun starts smelling, turn ur volume down and play a low frequency just to get air moving. Helps cool everything off.

@BudgetBassHead Жыл бұрын

Thanks for the tip

@davidwhite9591 Жыл бұрын

Great job and effort and putting the work in! You do alot of testing that I have always wanted to do using a very scientific method. Kuddos to you sir.

@triple-7839 Жыл бұрын

I've been wanting to do a build exactly like this for a daily for a long time awesome to seen it in action

@michaelscott181 Жыл бұрын

Thank you! Best visual of the 6th order

@BudgetBassHead Жыл бұрын

Glad you liked it!

@larrymontgomery4902 Жыл бұрын

Bro..i truly 3njoy your videos,also im sure glad there is someone smart enough to dumb it down for those of us trying to figure it out!

@stereomojo Жыл бұрын

Wow, what a cool demonstration! Thanks for sharing!

@BudgetBassHead Жыл бұрын

Thank you! Cheers!

@gsxroyce256 7 ай бұрын

This is the first I fully understand how the port tuning works. I knew how to make it work, but didn’t know what was happening. The confetti was a great idea to show how the frequency moves through.

@davidwoody4040 Жыл бұрын

Prime example man love it with a solid top id love to have that behind my sectional

@rvpartsguys2006 Жыл бұрын

LOVE your content. Best Car Audio on KZfaq.

@MaximumPasta 7 ай бұрын

4:10 - visualizing that with the confetti is such a simple and effective way to demonstrate! Awesome video

@BudgetBassHead 7 ай бұрын

Glad you liked it!

@Bekent 3 ай бұрын

Genius with the confetti, really helps to understand it.

@markperkins9445 Жыл бұрын

Awesome job man. That just made things click for my mind.

@billahler7728 Жыл бұрын

This channel is very informative. Great stuff

@1ohmwrecker Жыл бұрын

I think I've only seen a tri-chamber box once at a car audio show. Looks pretty cool! Killin it man👌

@errolbaxter4988 Жыл бұрын

pretty cool demo mate. Cheers!

@gowayneshipman Жыл бұрын

Excellent visual representation!!

@jonathongaleano2893 Жыл бұрын

Wow! You had me at 6th Order! Yeah, I would've tuned at 30 and 60.

@BudgetBassHead Жыл бұрын

I wanted to, but the program showed a better curve with this tuning.

@mikehonda7934 Жыл бұрын

Looking out, you should get one of them IM-SG tools for figuring out your enclosure tuning and see how far off your enclosure building program is from real world test. If you went with a higher tuning, your 6th Order for sure would have outperformed the bass reflex enclosure. HexiBase has a good breakdown of the 6th order operation of both parallel and series. The point of the 6th order is to give 2 tuning peaks, in which you can EQ your peaks to flatten a response across a wider table than a traditional 4th order bandpass (ratio defendant as well 1:1 2:1 3:1 and so on) efficiently. Which is where the 6th order bandpass order came from. Porting the sealed chamber in the 4th order.

@JasonWW2000 Жыл бұрын

@@mikehonda7934 The IM-SG+ is a $450 device and he already has the tools that can duplicate its function. So not a good investment. I'd suggest a DATS that will plot the impedance curve on a graph. They are only $130.

@mikehonda7934 Жыл бұрын

@@JasonWW2000 it is a good investment if you are into what Budget does. Yes the DATS does the same, but on the fly, the DATS is useless and you’ll be guessing. Do some research on the unit I mentioned, and you’ll understand it does more than what the DATS does. D’Amore Engineering has a few segments it’s design and features. Put together all of what you say he has, since you know him apparently, and get a tally up and tell me how much it comes up too. Minus the computer you need to use the DATS.

@johnobserve517 Жыл бұрын

Great video and great knowledge! Thank you keep it up !

@Hammerback972 Жыл бұрын

This is a great video. Excellent demonstration, makes me wish I was smart enough to build something like this. Awesome share, I’d say the best video I’ve seen yet that shows exactly what you’re explaining. I got some brand new plexiglass still sealed in plastic, same thickness as what u have but I have several sheets of it, I have some 3/4 as well, enough to make a viewing window, but still, I can’t build anything that would work…at all. Thanks for Sharing

@yonson_racing Жыл бұрын

Great channel, keep the content coming!

@BudgetBassHead Жыл бұрын

Thanks, will do!

@DIYAudioGuy Жыл бұрын

The long port is the result of a small airspace. As the chamber gets smaller the port has to get longer to maintain a given tuning frequency.

@It-b-Blair Жыл бұрын

Y’all should collab! Maybe have Budget on as a guest speaker in your podcast! 🔥🙏

@arturozarate1752 6 ай бұрын

@@It-b-Blair😬 DIY's hands would over shadow and eventually take over the "collab" leaving Budget hand and foot less.

@DrewAk49 Жыл бұрын

This man is a true bass head!

@bassheadsofvanwert1007 Жыл бұрын

Very well said my man. I agree with you.

@christopherrios9252 Жыл бұрын

your awesome. i loved your video. im so inspired

@TheRealAaronWitchey 10 ай бұрын

That was actually really cool!

@Alkatross Жыл бұрын

Wow, it sounds way better with the mdf on there. I can't believe how much air is still moving down at 19 hz. That is like a windy, hair trick box

@brainiacproductions6031 Жыл бұрын

This channel is super underrated

@tubesteak5001 Жыл бұрын

Inspirational!!🤘🔈🔉🔊

@seanlittlepytech4659 Жыл бұрын

Love your vids. Cool stuff i always wondered about. :)

@robraw101 Жыл бұрын

You have a tolerant wife my man, God bless you both. Love your videos.

@ipleedafif8033 Жыл бұрын

Bandpass are the best to get the most out of your subs with the minimal watts. That being said, I've had one bandpass 12 and it was great for those long notes but the quick thumping notes are lost through those tuning ports. I've always like sealed over everything.

@trumanbeal5668 11 ай бұрын

The tissue effect was an excellent visual!

@leveluplife8585 Ай бұрын

That’s an awesome idea

@johnniebeard8647 11 ай бұрын

That was cool.i like your content.thank you sir

@bassmansl9596 Жыл бұрын

Nicely done bro

@Thomasisthekey Жыл бұрын

Excellent 👍 all the way around

@tashamac6770 Жыл бұрын

LOVE YOUR VIDEOS.

@mudcud 10 ай бұрын

That's pretty cool man.

@RCCRAWLINGADVENTURES503 Жыл бұрын

Great video thank you

@seanvarela8384 Жыл бұрын

okay yeah I have to do a comparison with you, Only because I do not recall ever seeing you do too much with a t-line and I have never compared a 6th order direcly agaist a t-line so it would be cool to see and know

@Kenmarshallintereststx 7 ай бұрын

Just leaving Houston on my way back to San Antonio in Texas we like it low and slow

@themusikfactory9571 11 ай бұрын

Great video

@bearxbunny1835 Жыл бұрын

And it looks like the acrylic top is flexing like a lot too

@BudgetBassHead Жыл бұрын

For visuals only

@Scorpiondethbite 8 ай бұрын

Great build! Thanks for showing us what it can do! And for your wife letting you! 🤣👍

@CrystalClearSQL Жыл бұрын

Very Very cool!

@tyler238 Жыл бұрын

Here to learn and support… who wouldn’t want to see their sun tho

@likedcommentsRdeleted 3 күн бұрын

finally, an enclosure befitting the 6.5 Meso....😁

@gnastybrownbrown1571 7 ай бұрын

Now I have a better understanding on how them boxes work

@michaelrhodes9178 Жыл бұрын

Awesome way to show transition from 40 to 20htz

@BrandonLeeYouKnow Жыл бұрын

Yea!!!

@RB-ve7sr Жыл бұрын

Супер.так наглядно👍.вы очень классные видео делаете для любителей сабвуферостроения.

@dreci3001 Жыл бұрын

Man, I see you're also plagued by bots in the comments. No matter, keep it up, ppl don't understand how much time, effort and resources go into prototyping and data gathering. That 6.5 might be better tuned higher, as you stated. Another thing that you might consider is getting a mic & REW to do FR sweeps (opens a whole new Pandora's Box of troubles and adjustments) but will visualize your proto box response to modeled FR response. I've an 8" Hertz sub which is waiting for its panels to do exactly what you did. Box is 1.130 ft3 @ 33Hz to 0.5 ft3 @ 60Hz = -3dB @ 30Hz and -3dB @ 90Hz. Everything above 32-33Hz to about 80Hz is above 0dB response with a peak @ 50Hz +4.5dB. Driver specs are more important in those type of boxes than anything else. Cheers. P.S. Good on your lady for allowing the living room! 😆

@BudgetBassHead Жыл бұрын

Thanks for the support. I've been curious about those Hertz subs for a while now.

@dreci3001 Жыл бұрын

@@BudgetBassHead I got 2 actually: an ES200.5 8" (older model, Energy Series) and a Cento S4 10" both cheap, but good budget wise and decent TS params. I'm in Europe....your CT 6.5 costs more than certain 12" models here and I will never consider anything below 8" to be viable for sub duty. Audison is the parent company of Hertz. Check them out. 🙂 You can find detailed spec sheets for both. I bought the 8" for like 60 USD and the 10" for like 100$, before the USD was over the Euro.

@fasterthanaturtle Жыл бұрын

More videos are always amazing thank you. What if you did a passive radiator on a fourth order bandpass

@gone84328 Жыл бұрын

This guy is so cool

@izzzzzz6 Ай бұрын

How low can you go. Pretty impressive for a small driver. This would work amazingly well with a bigger driver or 2 drivers side by side to create the width for the lower frequencies. Lots of work went into this video. Thank you. I like the ending!

@Anthonydemone Жыл бұрын

🔴 Dope asf👍🏾, I wanna try my luck at building one of these enclosusers for dual 12s. I'm probably gonna screw up the math measurments but I'm still gone try❗️

@BudgetBassHead Жыл бұрын

Go for it that's what it's all about

@johnallen8680 4 ай бұрын

Hi, are plans available ?@@BudgetBassHead

@arnicus208 Жыл бұрын

That plexi flex is throwing of your results a LOT.

@joseluisgonzalez6143 Жыл бұрын

Men you really need to make and test the DECWARE deathbox for 10", it looks like a very interesting project that promises to dupicate the power of the bass

@gsxroyce256 7 ай бұрын

I don’t don’t understand how firing them at the trunk makes it louder, yet people say trunk wall is better than that. But I know facing forward isn’t as good. So idk how sealing it off facing the cab makes it better.

@sheldoncooper2115 Жыл бұрын

Good content ill subscribe❤

@pgroadglide1581 Жыл бұрын

Very nice looks like it likes 26 hrz

@Alkatross Жыл бұрын

It's not that surprising that you smell the woofer using the reflex box. You really need an infrasonic filter to keep it from unloading below the tuning frequency. Win isd also has an excursion chart that shows when the woofer will bottom out (if you input the xmax) of course your first box is tuned so low you'll never have a problem. Great video!

@Boomatronics Жыл бұрын

When it unloads the coil leaves the gap and it heats it up so the further the coil is away from the magnet the hotter the coil is gonna get so if you keep the subwoofer within the tuning frequency of the box it keeps the coil centered within the gap and it keeps it cooler and it also increases bl.

@joshe3662 4 ай бұрын

Them octaves... They get us all man.😂

@gsxroyce256 7 ай бұрын

I know a guy who turns his subs differently. He had two 15s and he has one box at 25 and one 35. He’s the only person I’ve see do it. I’m sure others have.

@johnallen8680 6 ай бұрын

Sounds great. Is there supposed to be a link to a plans/build video

@96MustangBoy1 5 ай бұрын

Can you make one using aeroports? With the one side tuned a little higher.

@worldwideteambasscatdownri6963 6 ай бұрын

The program I use for 6th's my back chamber is small with high side port and front chamber is bigger with lower tuned port I get higher dB's.

@BudgetBassHead 6 ай бұрын

Thanks for the tip

@colbylaro9361 Жыл бұрын

I agree..sixth order for sq

@CajunReaper95 11 ай бұрын

I guess you could say that the box acts like a crossover of sorts although I am curious how do you set the crossover on your amp with a box like this?

@gnastybrownbrown1571 7 ай бұрын

What sub you running in it and would it play louder with 2 subs or can that work

@gregkrueger331 Жыл бұрын

Dude i want these drawings so bad. I suck at figuring out all the math involved. Hook me up with some dimensions and I’ll glad pay you for them. The dual port 6th order would work perfectly for my application.

@davidwoody4040 Жыл бұрын

On a small sub those numbers are sweet

@TimpBizkit Жыл бұрын

What about a 6th order passive radiator box with different weighted passive radiators and/or different sized boxes and the real driver hidden on the inside?

@justaskdad Жыл бұрын

Do you have DIY plans available for the 6th order box in this video? Thank you.

@Boomie0419 Ай бұрын

I'm new to your channel, found it while surfing KZfaq for low Bass box builds. I have a 10" CT Sounds Strato in a 1 cuft ported box (@35htz) and im looking to play lower bass notes without hurting my Sub. But im not sure about what kind of box im looking for and was hoping to learn something new. I listen to Rebassed music and the Sub is 37htz. I try to stay above 30htz but most of the good songs are in the 20s so i figure IF i get a different box maybe i can achieve the sweeps like you had in the first box.

@cwain96 Жыл бұрын

Great job man! I dig this channel alot. As far as copyright infringement, isn't all you have to do is give the artist credit for their music?? I don't know, but I've seen vids to where they did play radio songs and gave credits, and they didn't get taken down?? Keep up the good work, I like how you break it down.

@kirklandbanton1535 5 ай бұрын

Hey bro appreciate your vid and I have a question.....so this bandpass is as loud as 2 subs then.. am I right

@cherrychevys Жыл бұрын

I would love to see this same enclosure and test done with cotton balls.

@gsxroyce256 7 ай бұрын

This look like it had multiple peaks. You can see peaks at 25hz - 28hz - 32hz - and 35hz as far as the TP 🧻 test looked.

@anubisprince36 Жыл бұрын

Losing output due to the top flexing but that's awesome.

@commonsenseisdeadin2024 Жыл бұрын

That tri chamber looks slick, all your boxes look great, What tools do you use? Judging by a blade burn I seen at the end looks like you are running them with just a skill saw (Know how I know that mark! 🤣) One thing to note however is the reason you see 6th orders in spl builds is the construction and sheer size needed doesn't give you much option with the port size as well. Also can't do a 4th bandpass (obviously a 4the reflex aka ported is typically not even an option with more than 2-4 drivers ) is because you can't literally have a sealed section or you'll blow the box or more likely you'll blow your spiders and cones right out from the amount of air needing to be displaced (Hence why windshields blow 😂) great vid

@It-b-Blair Жыл бұрын

Watching your stuff lately and this morning I woke up with a wild idea *6th order isobaric with passive radiators* What do you think? 🤪🤷‍♂️😸

@sukhvindermangat1087 Жыл бұрын

1st time coming across your channel, good stuff!!! Got yourself a subscriber! I was curious, think coating the port with wood glue or something would help with air flow? And was also wondering if flaring the port throughout the box would make a difference? (Like starting at 1.5" out to 3"-4" at the end of the box)

@arturozarate1752 6 ай бұрын

Coating the port will yield little to no improvement of the "chuffing". The "flared" or "radiused" exit would help the most, however it isn't a sure resolve for port noise, and the length of the vent would have to be adjusted. Where the radius begins is the end of the length of the vent. The port velocity is too high and can be calculated to a minimum port area for a given port design. A port can be tuned to a given frequency at a calculated port area and length and yield a port velocity. The same frequency can be achieved from another port area and length and yield another port velocity. Either or may be equal to, less than, or greater than a determined velocity. That less than or equal to that velocity yields zero noise. Greater than....you get noise. The port velocity should be calculated and referenced against the threshold every time a vented enclosure of any kind is designed. Any size or shape vent is susceptible to noise. I wish it was as easy as rounding over sharp edge, adding 45° corner braces, a large radius flared vent , or coating the smooth MDF vent walls in wood glue, outfits even easier through a mathematical equation.

@deusfetura Жыл бұрын

FOR MY OPINIÓN THE SOUND IS GOING BETTER IS YOU PUT A FILTER IN THE LAST LINE ON THE 2 SIDE OF BYPASS

@steveharley2021 Жыл бұрын

Another great video👍 what frequency generator app do you use? Can you maybe show the app icon before you open it next time. Thanks!

@chrishernandez2490 Жыл бұрын

Theres tons of them on the app store. They all work pretty much the same

@BudgetBassHead Жыл бұрын

I'll make sure to mention it in the next vid

@seanaskeland515 Жыл бұрын

It looks like the small side is tuned to 40 or 35 and the big side to 25 is that correct? I know you said otherwise but max port flow looked a little different