Undergrown Subwoofer

[Ewrecked]

Hello Everyone,

I want to design and make a undergroud 4th order bandpass box I plan on 3d printing the enclosure. This would be my first enclosure build outside of car audio and first one tuned as perfect as I can.

Has anyone done this I could not find it on the forum?

I am still in the idea stage and picking a driver at the moment looking at marine drivers I am open to all input and suggestions.

 

[isolar8001]

Hello Everyone,

I want to design and make a undergroud 4th order bandpass box I plan on 3d printing the enclosure. This would be my first enclosure build outside of car audio and first one tuned as perfect as I can.

Has anyone done this I could not find it on the forum?

I am still in the idea stage and picking a driver at the moment looking at marine drivers I am open to all input and suggestions.

Audioholics is mainly a home audio forum.
There are many car audio forums that could help you with that type of box.

 

[BoredSysAdmin]

I'm not sure what OP means by "Undergrown" or "undergroud" - and why would you 3d print it?

 

[TLS Guy]

Hello Everyone,

I want to design and make a undergroud 4th order bandpass box I plan on 3d printing the enclosure. This would be my first enclosure build outside of car audio and first one tuned as perfect as I can.

Has anyone done this I could not find it on the forum?

I am still in the idea stage and picking a driver at the moment looking at marine drivers I am open to all input and suggestions.

Not sure at all what you are trying to do. But fourth order bandpass boxes are not advised at all any more. They had a vogue in the eighties and I built a couple of designs back in the eighties. If you can explain more what you are trying to do, I can tell whether to encourage you, or tell you to stop right now.

 

[Ewrecked]

Not sure at all what you are trying to do. But fourth order bandpass boxes are not advised at all any more. They had a vogue in the eighties and I built a couple of designs back in the eighties. If you can explain more what you are trying to do, I can tell whether to encourage you, or tell you to stop right now.

I have two seating areas outside of my house a side porch and a front porch I would like to put one subwoofer for both areas. The only reason I was looking at Marine subwoofers is because I can wire it to be 8 ohms and it is actually somewhat waterproof. For speakers I am looking at Bowers & Wikins AM-1.

 

[Ewrecked]

I'm not sure what OP means by "Undergrown" or "undergroud" - and why would you 3d print it?

I am going to print it because I can make any shape and size. I will also be able to control Port velocity and any easily fix any other issues and still have it waterproof.

 

[highfigh]

Hello Everyone,

I want to design and make a undergroud 4th order bandpass box I plan on 3d printing the enclosure. This would be my first enclosure build outside of car audio and first one tuned as perfect as I can.

Has anyone done this I could not find it on the forum?

I am still in the idea stage and picking a driver at the moment looking at marine drivers I am open to all input and suggestions.

Sonance, Origin Acoustics, IIRC Dayton and Episode all have underground subs. Look at their designs and experiment. The same rules apply- make sure the Qts isn't too high and make sure little squigglies can't get in.

 

[TLS Guy]

Sonance, Origin Acoustics, IIRC Dayton and Episode all have underground subs. Look at their designs and experiment. The same rules apply- make sure the Qts isn't too high and make sure little squigglies can't get in.

I'm not really interested in a project like that. I have designed and built bandpass bass systems. They are tricky, inefficient and have a very narrow FR. The new speaker designs with higher F3s and subs have killed that approach, and these systems do not have the bandwidth to go from the 20 Hz range to 80 Hz. I see there are systems you can buy, and all the output comes from the port, which is the way these systems work. To be honest, i think these outdoor systems are a regular nuisance with nothing to recommend them. I have better things to do with my time, than devoting it to junk like that.

 

[highfigh]

I'm not really interested in a project like that. I have designed and built bandpass bass systems. They are tricky, inefficient and have a very narrow FR. The new speaker designs with higher F3s and subs have killed that approach, and these systems do not have the bandwidth to go from the 20 Hz range to 80 Hz. I see there are systems you can buy, and all the output comes from the port, which is the way these systems work. To be honest, i think these outdoor systems are a regular nuisance with nothing to recommend them. I have better things to do with my time, than devoting it to junk like that.

BP have their uses and with EQ, the dip between the peaks can be flattened- the Sonarray and some of the others are packaged with a power amp (Crown CDi, in the case of Sonarray) that is operated in mono, so one channel powers the sub and the other powers the satellites. Since the satellites are small, the crossover is fairly high but with the parametric EQ, which was set by Sonance and adjustable by someone with the software, it sound very good. Not like a great home system, but if someone has the space and enough distance between their place and any neighbors, they don't have to suffer with terrible audio.

You need to remember, you represent one opinion- markets are based on the demands of the many.

I think you might be surprised by these, if installed and set up correctly. No bad effects from small rooms, either.

 

[TLS Guy]

BP have their uses and with EQ, the dip between the peaks can be flattened- the Sonarray and some of the others are packaged with a power amp (Crown CDi, in the case of Sonarray) that is operated in mono, so one channel powers the sub and the other powers the satellites. Since the satellites are small, the crossover is fairly high but with the parametric EQ, which was set by Sonance and adjustable by someone with the software, it sound very good. Not like a great home system, but if someone has the space and enough distance between their place and any neighbors, they don't have to suffer with terrible audio.

You need to remember, you represent one opinion- markets are based on the demands of the many.

I think you might be surprised by these, if installed and set up correctly. No bad effects from small rooms, either.

The bandwidth is still narrow. The driver will totally decouple from the box below and above the peaks, and this is not amenable to Eq. There is no way the FR will reach those small speakers. In my experience you can not get more than about an octave and a half bandwidth from those designs, and that is if you are lucky.
So the best the OP can hope for is some "ponk" below those small satellites.