Is the main difference between a MTM and MT that a MTM has better off axis response when placed vertical? Also, because usually wired in parallel, it is more efficient? Does MTM have easier time filling large room? Any other difference between the two? Thanks folks.
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MTM's are very good for the extra SPL headroom. That is they're main strength. And while they have a very symmetric vertical polar response there are some concerns about onaxis combing between woofers and uneven response offaxis again because of the woofers. Some people will not design MTM because of this, while others accept the *possibly* audible weakness in return for greater sensitivity and SPL capability.
I'm somewhere in between. I'd like to try the 5.25" (or maybe 4.5") Peerless Nomex woofers with a Vifa D26NC55 between them, with all the flanges touching. I think you could get the strengths of MTM without much of the downside that way. Maybe that will be project #4 after the PA dipoles and hard/soft bookshelf shootout...so maybe some time in 2008 :B
Read this more info: http://www.birotechnology.com/articles/VSTWLA.html
Hopefully someone else more knowledgeable will chime in on the subject.
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This design came together quick once I got to the point of selecting drivers. I spent several months reading and learning how to design xovers, here and over at PE Tech-Talk.
I had thought about using many drivers and many configurations but couldn't resolve (in my own mind) various... -
Hi all, Merry Christmas!
Santa brought me (well, they are still on their way) four TB W4-1658SB drivers.
http://www.partsexpress.com/pe/showd...number=264-878
http://www.parts-express.com/pdf/264-878s.pdf
It looks to me... -
Hi guys,
Inspired by few projects on this forum i started to think about something that would be the ultimate loudspeaker project for me. Project like that should have flat frequency response, good CSD, lowest distortion possible and possibility to be listened in smaller or larger rooms... -
I'm building two new subwoofer boxes to replace my TV stand and I want to put a vertical center between them. I was thinking of doing a three way with an RS270, an RS150, and an RS28. Has anyone done something like this with these drivers?
I would rather go with an established design... -
Hi All,
Working on my first DIY MTMs and wanted to begin by first confirming the measurement technique that should be employed.
I’ve read through the “Measurement Preparation with ARTA” document, but still have a couple of questions (included below). I think...
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