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Having heard Vifa dual ring radiators (XT19/25) in various speakers, I'd love to build a speaker around them. 

Being a Tannoy nut, and also due to being a first time speaker builder, I'd like to only build a full range two way design.  There are a few DIY pages out there using this tweeter, but mostly bookshelves or three way designs.  Due to my main listening room being a bass suckout and my other listening room being on the large side, I'd like to build a large two way.  This tweeter doesn't typically like to go low, but using a 10-12" waveguide, it can supposedly go down to 500Hz, making it usable for a larger two way.

Now the difficult part, finding a woofer that it will play nicely with.  From my limited knowledge, the Peerless 830669 may work: http://www.tymphany.com/830669

Now, what brings me to the OBS forum, I'm not sure if I want to build a OB or ported box.  I helped build the 200 liter cabinets for my Tannoy HPD's and recently veneered them myself, so I have some experience with building.  But the thought of a waveguide and 1-2 12" woofers mounted on a handsomely veneered piece of 1.25" thick MDF... 

Any help or input? 

Thanks,
Mike

[Saurav]

You may find this interesting:

http://www.diyaudio.com/forums/showthread.php?s=&threadid=110583

Search for 'Manzanita', I think there are a few other threads on a few forums that talk about this design.

[Angaria]

Look at the acoustic elegance OB and dipole woofers - they'll play high and clean.  Cheaper option if you don't want to biamp would be something from selenium.

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Look at the acoustic elegance OB and dipole woofers - they'll play high and clean.  Cheaper option if you don't want to biamp would be something from selenium.

Hmmm...a pair of 15"'s with a horn loaded Vifa sounds like fun.  I can make a much nicer looking version of Emerald Physic's offering. 

Firefox won't let me view Selenium's page, odd.  Bi-amping wouldn't be a problem though, I have a few spare amps around. 

Thanks all, time to brainstorm.  Feel free to add anything else though.