NEXO Cardioid Subwoofers Part 1

[@travishanson166]

I used to have a lot of fun playing around with stage layouts with MTL1X subs about a decade ago. Different delays for each cabinet, occasionally swapping phases and directions of cabinet placement. Whatever we could do to keep the sound moving forward away from the performance without feedback pockets on stage. With 8 cabs per side, every day was a science experiment. It's crazy the technology that has come along to do the stupid human tricks for us lol.

[@Dave-0]

Really cool presentation! I'm a little proud of myself for following the concept too🤣 thanks for putting this together!

[@djstacktrace]

Excellent! Very informative and just the right level of physics for someone like me with a physics minor earned 20 years ago but largely unused since.

[@kordta]

The idea for multiple woofers in pyramid style enclosure is definitely worth to try!

[@poserwanabe]

excellent video !!!! the 99 thumbs down were people who hate bass.....

[@mustangguy6242]

You have some great ideas. Nexo should hire you.

[@tgirard123]

I had no idea about any of this and stumbled onto your video. that is so cool period I'm soaking up everything I can right now on cardioid subwoofers. thanks Devin

[@DIYaudio69]

When do we get a part 2??? 😢

[@scottyrobertsconde]

One thing to consider is that every time you use a crossover or HPF or LPF, the filter flips the a subsequent frequency out of phase, and can greatly affect impulse response. Very good ideas though, I would like to see some in practice.

[@habibprasetyo4621]

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[@jakataruna7201]

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[@ekakristiantanker7599]

Siap... Satu server😅

[@nugrohochanel7964]

cardioid or end fire system on this video?

[@mansodin4958]

frex wofer 35-100hz

[@danielrincon9583]

"Cardioid" refers to its radiation pattern and "end fired" it's just one of the techniques you can apply. There's also "FrontBack" and "Acoustic Arc"

[@jasswanders4641]

great vid man! very informative! hope to see more videos! kudos!

[@johnterpack3940]

That one design was just a 6th order parallel-tuned bandpass. Interesting. I've been mulling over an interesting design in my head that, thanks to this video, I now think would have some degree of cardioid effect. It's basically two TQWT speakers slammed together with isobaric drivers. One tube would be tuned to the bottom of the desired range with the other tube tuned to the top. The differing lengths of the tubes would create some natural delay between the signals and the ports could be arranged to help accent whatever change in the acoustic center was caused by the different efficiencies of the two tubes.

[@Djtonydraper]

Great video. Very informative. Thanks for sharing..

[@yamaudio1]

Great video. Very informing. You may want to consider using the term "polarity" rather than "phase" when referring to reversing the leads on a driver. Phase is a time related term, where polarity as you show in the video is absolute. Thanks for posting.

[@doskoreanitos2588]

John Schauer nobody uses polarity anymore. It’s phase

[@Chase1297]

I think it funny to imagine the people who disliked this

[@30crc001]

what program do you use to create your simulations? Really cool video, thanks.

[@aelucif]

Ajajajj

[@djung9064]

Hypothetically speaking, would an horn type of enclosure help with this?

[@doskoreanitos2588]

Wow amazing. So cardioid speakers that are marketed without any delay are not necessarily efficient at different frequencies. Mind blown

[@devinlsheets_alphasound]

Sound Junky that’s right. Some use “passive” cardioid methods but we’re very suspicious of those. True cardioid requires processing

[@doskoreanitos2588]

Alpha Sound amazing thank you soo much for this. And one more question!!! If I have an enclosed woofer box with one port facing forward and one port facing back tuned at different frequencies, Is that just bad engineering and bad design?? Thanks again

[@devinlsheets_alphasound]

Hard to say, do you have a drawing of the design? You might also be interested in our video on subwoofer ports...

[@doskoreanitos2588]

Alpha Sound i don’t have the drawing but it’s called the soundtown Carme. Super well built but the ports in scared of. I’m getting it delivered today.

[@davidiliyn]

I love cancellation in the rear.

[@danigreatprogresslana570]

How about if I fix in so many sub in shiping container .

[@prashanthb6521]

Some points flew over my head :) Still thanks for this video.

[@AnOriginalYouTuber]

15:10 The two opposing ports will cancel each other out, correct?

[@Moerkie]

thank you all that much

[@313mikido]

if i have a subwoofer side by side and having one faced the rear with reversed polarity. is a time delayed required? great vid btw

[@313mikido]

Devin Sheets does it matter weather the sub is reflex or bandpass?

[@TorstenSven]

Well articulated. Enjoyed a lot!

[@Cornelixx]

Many thanks!

[@julianvanessen9381]

very clear and informative video!

[@ffbossy]

👌🌟🌟🌟🌟🌟👍👏👏😎 Thanks for all the work

[@doskoreanitos2588]

What happens if you have a port in the front and a port in the back tuned at different frequencies?

[@thomasnygard2334]

It's called 6th order not really common but they work well in cars if you have the space

[@etranje]

Very good info! Thanks!

[@570films]

Hello . Great presentation. Audio too low. Thanks again

[@devinlsheets_alphasound]

James mcmillon Thanks! Yeah the audio really sucked on this one, it gets better in future videos lol

[@djung9064]

welp....that explains all of the low end I was hearing on the stage.

[@reyzuna]

and here i thought phase was the one canceling the base lols,. I separated my subs in any random distance and have non cancellations on base so i don't get this theory of yours. The only thing that canceling my base is when i put the speaker in a box that have them flat horizontal coil facing up rather than facing forward. Have you seen the inside of QSC KS212c?

[@TheReve4u]

thanks a lot

[@rb032682]

good stuff. Thanks.

[@americanliving4473]

Very well said.

[@rizallependozz]

pingin beli..

[@bouchoupapapapabouchou470]

Two major aspects are never addressed by manufacturers: the clarity and intelligibility of high power bass. The quality of the result is ensured by separate transducers for the bass drum and the bass guitar, possibly for the low frequencies of the keyboards. No matter how good the research, this fundamental aspect is overlooked, while it makes all the difference between a clean sound and a crap sound.

[@Turntablist11]

So, you'd like a separate set of subs for each instrument?

[@Peter-p7e]

@@Turntablist11 KV2 audio Absolut FLAT phase response.😁 This double sub is terrible phase😡

[@Turntablist11]

@@Peter-p7e No sub has a flat phase response. The type that comes closest i sealed subs or front loaded horns, out of which KV2 produce none.

[@videotutorialegratis6232]

Bravo👍👍👍👍

[@dr.amauryserranov3609]

Soy el 2000✌️😎👉