Home » Sponsored » Pi Speakers » 12Pi plans please (Plans for the 12Pi)
12Pi plans please [message #74637] Wed, 28 November 2012 20:17 Go to next message
Chuntzu  is currently offline Chuntzu
Messages: 3
Registered: November 2012
Location: United States
Esquire
I was hoping to get plans for the 12pi, please and thank you. My head has been spinning the last few days deciding on which sub to build, labhorn, titan48, keyhole sub, 12pi. I finally decided go big or go home! So here we go thank you so much.
Re: 12Pi plans please [message #74639 is a reply to message #74637 ] Wed, 28 November 2012 23:36 Go to previous messageGo to next message
Wayne Parham  is currently offline Wayne Parham
Messages: 16248
Registered: May 2009
Illuminati (33rd Degree)

You've got mail!

Re: 12Pi plans please [message #74643 is a reply to message #74637 ] Thu, 29 November 2012 08:39 Go to previous messageGo to next message
Chuntzu  is currently offline Chuntzu
Messages: 3
Registered: November 2012
Location: United States
Esquire
Thank you for the pdf plans I really appreciate it, I don't suppose you have a dxf file or cad drawings? Thanks again I can't wait to get started.
Re: 12Pi plans please [message #74644 is a reply to message #74637 ] Thu, 29 November 2012 08:44 Go to previous messageGo to next message
Chuntzu  is currently offline Chuntzu
Messages: 3
Registered: November 2012
Location: United States
Esquire
Thanks to a handy dandy google search I see your point about not distributing a dxf file, sorry I didn't catch that sooner. Have a great day.
Re: 12Pi plans please [message #75443 is a reply to message #74639 ] Tue, 05 February 2013 12:13 Go to previous messageGo to next message
mph100  is currently offline mph100
Messages: 1
Registered: February 2013
Esquire
hi new poster would very much like to build the 12 pi subwoofer look at many other design and choose this one is there a preferd chamber volume for the speakers would like to keep them as close to design breif as poss or would the change in volume make no noticeable difference not really seen this design here in the uk ofcourse the lab sub has made it here
Re: 12Pi plans please [message #75445 is a reply to message #75443 ] Tue, 05 February 2013 12:19 Go to previous message
Wayne Parham  is currently offline Wayne Parham
Messages: 16248
Registered: May 2009
Illuminati (33rd Degree)

Not sure what you're asking, but both front and rear chamber volumes are critical. Stick with the dimensions shown in the plans for best results.

Front and rear chamber volumes are important in any horn design, but even more so in the 12π basshorn subwoofer, because distortion reduction is accomplished by maintaining symmetry in the load. Push-pull drive is there to cancel asymmetries, so we sure don't want to introduce any.
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