Planar Speaker Asylum

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RE: Tympani IVAs on the 'gon

Posted by josh358 on September 19, 2010 at 09:15:57:
All I know is that the photo of the IV on the Asylum Magnepan list looks like a 1D with a slit in it rather than like the IV.

I did find a description of some of the changes between the IV and the IVA on the last page of the IVA manual. Essentially, the IVA has more efficient bass and midrange drivers, a 1 dB/octave warmer slope, better crossovers, and a longer midrange with better coupling and dispersion. But it doesn't mention the cosmetics.

http://tinyurl.com/35twbug

Really, none of these are show stoppers with today's high powered amplifiers, active crossovers, and Satie's Neo-8 midrange mod, though I guess you'd have to enlarge the midrange slot for that.

BTW, my search also turned up a guy who bought a pair of IV's at a garage sale for $25. Read it and weep!

http://www.audiokarma.org/forums/archive/index.php/t-78924.html