212 bass
Printed From: Speakerplans.com
Category: Plans
Forum Name: Plan Requests
Forum Description: All plan requests here
URL: https://forum.speakerplans.com/forum_posts.asp?TID=94200
Printed Date: 27 March 2026 at 11:09am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: 212 bass
Posted By: fotsi_nijts
Subject: 212 bass
Date Posted: 21 December 2015 at 1:18pm
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Hello everyone, I have a pair of CHEAP 12" (300watt) speaker which are not used. Since a month I have a new workspace in an empty "warehouse" so I can play music very loud  I am looking to build a (single) bass speaker. I've build lots of crap earlier but now I have acces to a cnc mill and table saw etc. I was looking to the HD215 speakers and was thinking if this is available for 12" (or can I just scale it down) Does anyone have other ideas. In the link down here are the specs. http://forum.zelfbouwaudio.nl/download/file.php?id=41244&mode=view Best Wishes, Stijn
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Replies:
Posted By: mini-mad
Date Posted: 21 December 2015 at 11:36pm
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You want a horn or would you consider reflex too? ------------- If it sounds like a gorilla is trying to escape, turn it down. |
Posted By: _djk_
Date Posted: 22 December 2015 at 2:34am
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Very weak motor. ------------- djk |
Posted By: fotsi_nijts
Date Posted: 22 December 2015 at 1:01pm
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Since the space where I'm going to use it is pretty big I think I want to build a horn. But this project is also more a building practice. No I've scaled down a USB bass bin so it fits two 12" speakers. I'll try to upload a picture
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Posted By: fotsi_nijts
Date Posted: 22 December 2015 at 1:34pm
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I'm new to sketchup since yesterday, but worked this out. It's based on a USB Bass Bin. Normally there are two angles in the horn mouth, since the scaling made it impossible to fit the driver in depth I added a slightly wider piece and made it a bit deeper and wider. To be honest I don't know anything about doing calculations.... so not sure how this wil influence it's sound. Pictures below: https://www.flickr.com/photos/138765040@N04/23278880124/ |
Posted By: mini-mad
Date Posted: 22 December 2015 at 3:49pm
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You will lose loads of low bass scaling down a USB. why not have a go at an MTH30 and just build a pair of them, side by side and corner load them. Iv had good results doing this in smaller rooms and medium halls. ....of try your hand at a tapped horn like the THAM12. A few more angle cuts required but you get a smaller box and is a bit more forgivable on the driver used. ------------- If it sounds like a gorilla is trying to escape, turn it down. |
Posted By: fotsi_nijts
Date Posted: 22 December 2015 at 9:21pm
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Hi, Thanks for your advice. I've already had them inside two MTH30 and have one THAM10 which sounded really weird. (tested with two different drivers.) I saw this one on the forum but didn't find any plans for it. http://bass.heavy.jp/wp-content/uploads/x2_a57bb81.jpg I play a lot of dub/reggae so I think it's a suitable build.
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Posted By: mini-mad
Date Posted: 22 December 2015 at 11:01pm
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They wont play low.... the path is to short. ------------- If it sounds like a gorilla is trying to escape, turn it down. |
Posted By: fotsi_nijts
Date Posted: 23 December 2015 at 1:16pm
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Alright, last one... Planar Horn?
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Posted By: all bass
Date Posted: 23 December 2015 at 6:22pm
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http://www.jobst-audio.de/images/selbstbau/pa/b-serie/jb-sub112h-pl.jpg" rel="nofollow - JB sub 12 H Seems to work well with higher QTS drivers. ------------- https://www.instagram.com/my_modular_journey/ |