Double loaded 12" or single
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Forum Name: Other plans
Forum Description: Discussion / Questions about all the other plans
URL: https://forum.speakerplans.com/forum_posts.asp?TID=6511
Printed Date: 27 March 2026 at 8:37am
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Topic: Double loaded 12" or single
Posted By: DJ Coupé
Subject: Double loaded 12" or single
Date Posted: 17 September 2006 at 11:44am
| id like some plans for even a single loaded or double loaded 12" bass bin (jbl 2206hpl). Any ideas. |
Replies:
Posted By: Tekasis
Date Posted: 25 September 2006 at 4:17pm
| DJ Coupe, U must of found some by now ???? |
Posted By: Tom Umney
Date Posted: 25 September 2006 at 11:30pm
Reflex I'm guessing? They are fairly easy to design in WINISD.
You don't see many at all.As 12 inch reflex designs around are crap for serious bass.
The Eminence book has a 2x 12 inch bandpass which would give you more bass than a 2x 12 inch reflex which would be quite pathetic if used for pa.
http://www.altoparlantiweb.it/Progetti.zip/SUB.EMINENCE.zip - http://www.altoparlantiweb.it/Progetti.zip/SUB.EMINENCE.zip
The second last design on that page is the 2x 12 inch bandpass design.
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DJ Coupé wrote:Posted By: CaptainCaveman
Date Posted: 16 October 2006 at 7:07am
| ive got a few of those boxes already made up if you interested? |
Posted By: CHAMPION
Date Posted: 16 October 2006 at 7:41am
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Hi I got 4 x 15" scoop boxes forsale if your interested, Eminence design ------------- Sticks n Stones |
Posted By: adambomb
Date Posted: 16 October 2006 at 8:14am
| I have one of the eminence 2 x 12 BPs... ok from a distance but port-noise-tastic up close! |
Posted By: rich, ind.st
Date Posted: 16 October 2006 at 9:40am
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yea james has one of the double 12" eminence bp cabs, untill the
drivers got upgraded to a wicked one as their home. they produce a
reasonable ammount of bass but the port noise is ludicrous id say that 12" reflex cabs can work for pa, i reckon 2 decent long throw 12"s in a decently designed reflex cab would sound pretty sweet, possibly be a shade faster thana 15 or 18... ------------- music is god |
Posted By: Tom Umney
Date Posted: 24 October 2006 at 7:50pm
It might work if you used 2 very long excersion 12 inch drivers in a suitable tuned reflex cab. Eminence Lab 12 drivers come to mind.
It could certainly go deep then but it still wouldn't be as loud as a horn, scoop or bandpass.
Or to achieve loud bass from a reflex it would have to be a huge enclosure for two 12 inch drivers.
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Posted By: moray james
Date Posted: 25 October 2006 at 12:31am
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http://www.egbeck.de/expo212.htm - http://www.egbeck.de/expo212.htm
http://www.egbeck.de/bec2.htm - http://www.egbeck.de/bec2.htm
http://www.egbeck.de/2x10comph.htm - http://www.egbeck.de/2x10comph.htm
http://www.egbeck.de/212pipe.htm - http://www.egbeck.de/212pipe.htm
http://www.egbeck.de/tss800.htm - http://www.egbeck.de/tss800.htm
http://www.egbeck.de/15bhorn0.htm - http://www.egbeck.de/15bhorn0.htm
http://www.egbeck.de/expo15.htm - http://www.egbeck.de/expo15.htm ------------- moray james |
Posted By: Robbo
Date Posted: 25 October 2006 at 7:57am
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About 30 years ago,FAL(no naughty comments please)manufactured a very compact mini scoop 12" plus J104 horn cabinet which used to stand about 30" high by 15" wide by 18" deep which we used to sell to mainly mobile DJs as they always used to sound amazing with an excellent punchy bass even from the relatively cheap Fane speaker within.
One of our regular DJ customers had bought four of these cabinets from us and was very pleased with them until the day his amp went DC on one side and fried one of his cabinets (luckily only using one pair on the night in question)---next day the blown cabinet duly arrived back in our shop for repair and the only reasonable 12" driver in stock was our own 12" ATC long coil bass driver with rubber surround(spare driver for some Hill bass bins). This was duly bolted in and run with some music through to test if it was OK. I wish that I had a camera at this point to capture the amazed looks on everyones faces as this little tiny cabinet proceeded to shake the shop to pieces.
Not sure if anyone has made any 12" scoops on here yet with todays hi spec drivers installed, but I would say that it would definitely be worth a try or even a 2x12" mini scoop would not be all that big to make.
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Posted By: Mircea Bartic
Date Posted: 25 October 2006 at 8:28am
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"Not sure if anyone has made any 12" scoops on here yet with todays hi
spec drivers installed, but I would say that it would definitely be
worth a try or even a 2x12" mini scoop would not be all that big to
make. " http://www.galerie.poweraudio.ro/?path=./Back%20Loaded%20Horn%20-%20BM12-CXA/ - http://www.galerie.poweraudio.ro/?path=./Back%20Loaded%20Horn%20-%20BM12-CXA/ http://www.galerie.poweraudio.ro/?path=./Popute%20Cristian%20-%20back%20loaded%20horn%20-%20Oradea/ - http://www.galerie.poweraudio.ro/?path=./Popute%20Cristian%20-%20back%20loaded%20horn%20-%20Oradea/ ------------- general manager & head designer at nexus-acoustics research http://www.facebook.com/nexus.acoustics.research" rel="nofollow - http://www.facebook.com/nexus.acoustics.research Ex Nexus_3 |
Posted By: Robbo
Date Posted: 25 October 2006 at 11:39am
| Thanks for that----They are far too tall though---12" scoops should work out at less than 3ft tall if they are kept in the shrinking context of a 15" scoop. |
Posted By: jethrocker
Date Posted: 25 October 2006 at 12:22pm
| I reckon those 12" scoops would sound nice and punchy used above a sub (eg 18" scoop) to play high bass up to say 160Hz.. |
Posted By: DJ Coupé
Date Posted: 06 November 2006 at 12:56pm
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cheers for the help folks, basically i now have 2 fane collossus 18xb cones in reflex cabs and 4 of the jbl 2206 so ill look into some of these designs and hopefully come up with a nice bass system i also have 2 jbl mpx1200s to run the bass. think id like to build 4 12'' scoops and 2 18" scoops 18" = 40hz - 80 hz maybe 100hz 12" = 100hz - 160hz tops = 160hz upwards |
Posted By: DJ Coupé
Date Posted: 08 November 2006 at 3:03am
Do you think my cones would be happy in this cab as theres an extra 300w rms coming through mine? |
Posted By: mobiele eenheid
Date Posted: 08 November 2006 at 7:45am
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A 18" scoop ussually has a dip in the frequency respons around 70 - 80 Hz. A 12" downscaled scoop would probably have it's dip around 100-120 Hz. With the crossover frequencies you propose you would have two dips in the frequency respons, if close enough even just one giant dip, right there in the kickarea. All used in a monostack would flatten those dips out.
You might just like it.
Wkr Johan
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