Piped driver, a day effort

[musiklava79]

A stellar effort at a quick and dirty, not to mention economical, diy speaker build! :thumbsup:

I'm not clear on one aspect, though. Are the speakers vented or closed? The snapshot does not reveal this.

 

[Sumanta]

A stellar effort at a quick and dirty, not to mention economical, diy speaker build! :thumbsup:

I'm not clear on one aspect, though. Are the speakers vented or closed? The snapshot does not reveal this.

This is a vented design single driver MLTL. I didn't do any calculation though, just used MJCs TL chart.

I am not clear about the use of "dirty" word here, probably used as part of a phrase, right?

 

[quad]

Quick-and-dirty - Wikipedia, the free encyclopedia

 

[Sumanta]

Quick-and-dirty - Wikipedia, the free encyclopedia

Quad, thanks for the link, I was searching for it:lol:.
What I meant in my last post is that the phrase is not applicable for my design.

Fabrication is a day effort, but not the design.

 

[jmascreen]

This is a vented design single driver MLTL. I didn't do any calculation though, just used MJCs TL chart.

I am not clear about the use of "dirty" word here, probably used as part of a phrase, right?

Is it possible for you to share a image of mass load portion?

 

[Sumanta]

Is it possible for you to share a image of mass load portion?

Dear Justin,
Unfortunately the pipe that acts as mass loading is restored in place with a plate at the bottom, so I can't take photo of the pipe.
This speaker is a single driver cabinet ported at bottom, so have a pipe of roughly quarter inch inner dia and of about 6 inch long piece as far as I remember. I had used filter cartridge of a water filter and cut it in two.

 

[kaushik]

liked it !

 

[Sumanta]

I have increased line length by another 6 inch or so. It is performing better.
I think I have reached to an easy way to make usable speaker which is economical, easy to build and long lasting. It is easy to repair as well. I now have to find a commercially available driver to suggest others.

I had to buy pipes, elbows, some synthetic fibres people put inside pillows (I need to get the name right next time), plywoods, Mseal and someone who can make wholes in plys and of course suitable drivers. I think 3 or 4 inch so called full range drivers will work good. I have used drivers of surround speakers of a all in one music system. I will see Peerless drivers spec later to find a suitable one. I have not gone through measurements and I might be missing something, but at present, I am happy with my speaker for our ears.

Here is a photo of the latest version.

 

[madhurvyas]

Check the cutout or inner diameter of speaker, if its nearby some of the available pvc pipe sizes(90, 110, 160) take it, else you have to get a wood/mdf ring which will accommodate the remaining space. I seal the speaker gaps with silicone sealant easily available at glass/hardware stores and is very cheap, and easy to remove if you want.

 

[Sumanta]

Check the cutout or inner diameter of speaker, if its nearby some of the available pvc pipe sizes(90, 110, 160) take it, else you have to get a wood/mdf ring which will accommodate the remaining space. I seal the speaker gaps with silicone sealant easily available at glass/hardware stores and is very cheap, and easy to remove if you want.

M seal worked right for me for driver sealing.
Pipe to elbow and couplers are connected with gasket seal or Mseal. Both of them work good for me. Araldite had I used for the other speaker to hold Ply ring on the mouth of the vertical pipe, and is working fine.