AudioCircle

Audio/Video Gear and Systems => Open Baffle Speakers => Topic started by: DaveFred on 30 Aug 2019, 03:25 am

Title: How to plan/build for a stack of six 12" woofers open baffle ripole style.
Post by: DaveFred on 30 Aug 2019, 03:25 am: Hello there,

I have a stack of six 12" woofers that I would like to build a cabinet for similar to this one,

(https://www.audiocircle.com/image.php?id=197994)

the woofers are the MCM 55-2973

https://www.newark.com/mcm-audio-select/55-2973/12-woofer-with-poly-conerubber/dp/80R7012 (https://www.newark.com/mcm-audio-select/55-2973/12-woofer-with-poly-conerubber/dp/80R7012)

This is more of an experiment than anything else.

What sort of spacing should I be using?

Thank you,

David.
Title: Re: How to plan/build for a stack of six 12" woofers open baffle ripole style.
Post by: JohnR on 30 Aug 2019, 10:15 am: This page recommends the area of the opening be 1/4 to 1/3 Sd -

https://jazzman-esl-page.blogspot.com/2011/01/ripole-subs-are-underway.html
Title: Re: How to plan/build for a stack of six 12" woofers open baffle ripole style.
Post by: rollo on 30 Aug 2019, 02:34 pm: Really nice $443 for parts a VG deal. Looks great as well.

charles
Title: Re: How to plan/build for a stack of six 12" woofers open baffle ripole style.
Post by: Russell Dawkins on 30 Aug 2019, 03:55 pm: Quote from: rollo on 30 Aug 2019, 02:34 pm
Really nice $443 for parts a VG deal. Looks great as well.

charles

Where did you get $443 from? At $13.29 each, it looks like $319 for a swarm of 4 sets of 6 (plus shipping, of course).
Title: Re: How to plan/build for a stack of six 12" woofers open baffle ripole style.
Post by: rollo on 30 Aug 2019, 04:23 pm: Quote from: Russell Dawkins on 30 Aug 2019, 03:55 pm
Where did you get $443 from? At $13.29 each, it looks like $319 for a swarm of 4 sets of 6 (plus shipping, of course).

Sorry should have been more clear. It is the Sub John R posted

charles
Title: Re: How to plan/build for a stack of six 12" woofers open baffle ripole style.
Post by: Russell Dawkins on 30 Aug 2019, 05:40 pm: Quote from: rollo on 30 Aug 2019, 04:23 pm
Sorry should have been more clear. It is the Sub John R posted

charles

Oops, my mistake—I should have clicked on John's link!
Title: Re: How to plan/build for a stack of six 12" woofers open baffle ripole style.
Post by: JohnR on 30 Aug 2019, 06:14 pm: I didn't know where rollo got the number from either... (the point of the link was the info about the area of the opening and hence driver spacing)