Tham 21 info please!
Printed From: Speakerplans.com
Category: Plans
Forum Name: New Projects Forum
Forum Description: Forum for new speakerplans projects, in memory of Tony Wilkes, 1953 - 2014
URL: https://forum.speakerplans.com/forum_posts.asp?TID=109193
Printed Date: 26 March 2026 at 8:43pm
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: Tham 21 info please!
Posted By: Angelow
Subject: Tham 21 info please!
Date Posted: 15 August 2025 at 1:07pm
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Hi! I'm writing from Italy. I've already built the Tham 15 and Tham 12! I saw the Tham 21 mentioned on the Martinsson's blog, but I can't find any details! Could I have a link to the project? I'd love to build it! Could I know where I can find the drawings and data to insert into HornResp to simulate it? I'd like to use the 21NLW4100 21nlw9001 woofer. Thank you very much and have a great day! 
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Replies:
Posted By: BJtheDJ
Date Posted: 15 August 2025 at 3:07pm
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This is the Tham family from Martinsson's website https://www.martinsson.cc/blog/static.php?page=static140228-173656" rel="nofollow - https://www.martinsson.cc/blog/static.php?page=static140228-173656 Can't see a Tham 21 there, it only goes up to the Tham 18. ------------- I started out in this business with nothing. I still have most of it left. |
Posted By: Angelow
Date Posted: 15 August 2025 at 5:24pm
| on page 9 it talks about it, I tried to contact him but the site doesn't work and as soon as I send the message it doesn't send it leaving a blank page :( |
Posted By: snowflake
Date Posted: 15 August 2025 at 5:32pm
| never seen any discussion of a Tham21 - are you sure it isn't simply a typo of Tham12 ? |
Posted By: DMorison
Date Posted: 16 August 2025 at 11:38am
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I think it was talked about but only ever went as far as a bit of exploration in the modelling realm, I'm pretty sure there was never a box built or plan released. The quote @Angelow is referring to on Anders' blog is (emphasis mine):
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Posted By: Andylaser
Date Posted: 16 August 2025 at 1:32pm
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There was some brief chat on DIYAudio. https://www.diyaudio.com/community/threads/tham-21-stupid-idea.391836/" rel="nofollow - https://www.diyaudio.com/community/threads/tham-21-stupid-idea.391836/ ------------- "music so loud, that if we move in next door to you; your lawn will die" - Lemmy |
Posted By: Angelow
Date Posted: 16 August 2025 at 2:57pm
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I saw the post, but I was talking about the official chart on the blog. An F3 COS for a 12" would be fantastic. XD Anyway, what compact TH do you recommend for a 21"? Would a "hybrid tapped" cube be good too? |