martinson tham 15 |
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bcs
Registered User Joined: 27 September 2010 Status: Offline Points: 216 |
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Posted: 27 June 2011 at 1:23pm |
Hi all. just want to give feedback on the tham 15. I have 4 of them loaded with beyma 15g450n. used all of them for the first time this weekend. i ran them off a crown 3600 and a dcx. all i can say is "my god" . a couple of guys stood back and said "what the f**k.those boxes are so small for their sound they put out". i had more good comments for the tham15 than the 18 br i use to run. i think for the size of these boxes, its very impressive. on setup a guy asked if this is all the sound that being used. i think his mouth was shut when it was playing. i had a pair each side stacked one on top of the other with the port aligned. on that was a dual 12 with comp for mid highs.
thanks to martinson. great design
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Joe Grime
Young Croc Joined: 28 February 2004 Location: E London Status: Offline Points: 850 |
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+1
I also have 4 loaded with the B&C 100TBX's crossed over at 140 to meet the MT112. Sweet, with a very musical bassline. |
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kevinmcdonough
Old Croc Joined: 27 June 2005 Location: Glasgow Status: Offline Points: 3749 |
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nice to hear this. I'm just in the process of sorting out a wee project with these, details and pics will come soon, but glad to hear I made the right choice! k |
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mrchay
Young Croc Joined: 29 September 2008 Status: Offline Points: 565 |
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Sorry to hijack, Any thoughts as to how well this design will perform with the fane 15xb? Also, which of the 4(that i can see) possible tham5 plans did you use? All the best, |
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Joe Grime
Young Croc Joined: 28 February 2004 Location: E London Status: Offline Points: 850 |
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I used the mk1 version. There is a dip at 170/80 on all variants, but I am not running them that high.
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bcs
Registered User Joined: 27 September 2010 Status: Offline Points: 216 |
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im also using the mk1 version. crossing mine at about 120hz.
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mrchay
Young Croc Joined: 29 September 2008 Status: Offline Points: 565 |
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Can you post a link to the mark 1 plan so I am certain I will be building the right thing? I will much prefer to build something that I know has been tried and tested (even though Im putting a different driver in it, at least I can always swap in future)
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Joe Grime
Young Croc Joined: 28 February 2004 Location: E London Status: Offline Points: 850 |
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http://www.diyaudio.com/forums/subwoofers/175658-tham15-compact-15-tapped-horn.html
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bcs
Registered User Joined: 27 September 2010 Status: Offline Points: 216 |
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I dont know how the mk2 or mk3 or even mk4 will sound. maby martinsson can shed some light on this. i plan on building another 2, and then use two stacks of 3 high with maby a xtro or mt112 above. sure this will sound even better.
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tv00
Old Croc Joined: 10 August 2009 Location: Denmark Status: Offline Points: 1886 |
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As you probably noticed mkII is performing better than mkI!
He put out some measurements on his homepage Consider this: I've been thinking about the exit mouth on mkII, I think this itself should be quite an improvement, I haven't tested myself, but generally basshorn perform better having an exit angle ABOVE 45 degrees. |
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Tony Wilkes
Old Croc Joined: 02 August 2004 Location: West Midlands Status: Offline Points: 4840 |
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I could have read it wrong but were not the measurements carried out with different drivers in each version of the box, if so this negates direct comparison. Tony |
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www.forteaudio.eu - BMS - db-Mark Processors - Lexon (SAE)
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tv00
Old Croc Joined: 10 August 2009 Location: Denmark Status: Offline Points: 1886 |
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That's a bit silly, I can only say that the drivers look very much alike:
I'm curious about updates, he wrote this A YEAR AGO: "The graphs (The MKII in blue, better will come) :" We're stille waiting for the better! Any news? I'm considering to build these, anyhow I think it's of great interest to a lot of people building these. Are any of you a friend of Martinsson, then you could ask him? The mouth expansion part is interesting, is it a gain just to put in that board? I guess so according to Bjørn Kolbrek & measurements i read about somewhere. What do i know, I think i read about the horn in this build being linear and not exponential is it so? Edited by tv00 - 09 January 2012 at 4:34pm |
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