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PostPosted: 31 Oct 2011, 09:23 
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Joined: 28 May 2008, 21:53
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Location: Winnipeg, CANADA
Hi Joe, check out the photo in this post: viewtopic.php?p=8163#p8163
Looks like the pipe was the right size that it could be mounted with the screws. Another option could be gluing.

Are you using the same drivers?
Cheers

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PostPosted: 28 Dec 2011, 16:53 
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Joined: 28 Dec 2011, 16:45
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I have revisited this idea over the Christmas holiday. The 1 1/2" pvc elbows provide about 18" length of vent. This design tunes the vent to about 100hz. I used about 0.750 liters of box volume (3" 45 degree street elbow + 3" to 1.5" adapter, and molded in about 27" of 3/4" plastic conduit inside of the pvc elbows, curling the remaining 9" around the adapter ID. The resultant tuning of the vent is now 40 hz. This fills in the bottom end of the HiVi full range B3N perfectly! These sound great! Thanks to ikymagoo for the original idea...Comparison auditions of the 40 hz tuning to the 100 hz tuning to a pair of Kloss Ensemble III have me amazed at the elegance of the design and assembly. My son wants a pair for his dorm room....I guess I have more work to do. Cheers.


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PostPosted: 29 Dec 2011, 13:06 
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Hi rbunch4468 , welcome to the forum and thanks for sharing your results. Any chance you could post some photos?

Cheers

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PostPosted: 31 Dec 2011, 09:02 
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Joined: 28 Dec 2011, 16:45
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Here are a few construction pix...My use of the smaller diameter vent was driven by modeling in Win ISD. Here is the projected output of the 100 hz tuning and the 40 hz tuning with the B3N full range speaker. I was able to build the speakers and add the Lepai amp for well under $100. I wanted a docking station for iPods and my iPad to use in my workshop.

Voila!


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PostPosted: 02 Mar 2012, 20:49 
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Joined: 02 Mar 2012, 20:42
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I think these look frikkin AMAZING! seriously, they are one of a kind and i would PROUDLY show them off. honest. i'd buy them, and at a premium price.

i do, however, feel that with a bit of experimentation, you could get the bass to go a bit lower. if you could make them go down to 30hz at a loud enough db, and put in a decent amount of wattage, these things wouyld sell like hotcakes :D

it reminds me of how bose focused towards the enclosure to get the most out of a small space. all of you seem to know what your doing here, you lost me! LOL

i really do love the design though, keep up the good work :D


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PostPosted: 17 Mar 2012, 18:14 
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Joined: 16 Mar 2012, 21:11
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You guys are just TOO creative !

here's a much more basic pair i made about twelve years ago, left it at work where the guys still use it.

Image

it was ~ten dollar 6" woofer in 8" pipe tee that was almost right diamter.and red rubber gasket made perfect fit. We measured compliance of speaker and added 7" to top to increase enclosure volume for better match..

Image

This TDA2009 10W/channel amp made a fine office system for streaming audio.
It was the KitsR'Us KT88.


Image

People came from all over the plant to marvel at such sound from an amp in a sardine can..
I listened to opera, the night shift preferred internet reggae stations.

old jim


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PostPosted: 07 Aug 2012, 10:03 
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Joined: 07 Aug 2012, 10:00
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How does one go about gluing socks to the inside of PVC?


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