Posted by bill epstein [ 71.79.179.49 ] on July 26, 2006 at 11:19:15:
In Reply to: Re: Wow, You and GarMan have got it going posted by SteveBrown on July 26, 2006 at 10:52:04:
Altec/University stamped-frame-little-magnet 12" with the Vifa DX-25 crossed about 3500. Very much like the Studio 2Pi but the box has a port stuffed with foam a' la KLH 17.
We tried several BR ports from 3/4 to 2 1/2" deep. All sounded boomy. Sealed was better but then The Speakerman reached into a corner somewhere and came up with these foam discs and put them in the ports. Much better.
Who knows where Ron gets this stuff. I alternate between beleiving his house is a 'gate' to another dimension populated by speaker parts or he finds things nobody lost.
The drivers really mesh nicely with no attenuation on the tweeter. I'd say efficiencey is around 93.
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