Tim Yanasak wrote:This will be a challenge for me but I want to build a pair of the Buschhorns of my own.
Tell me though, if the FF85K is no longer available, is there a good sounding substitute driver for this box? What should I be looking at or for, in the specs, when shopping for drivers?
Just take your time, measure exactly, and cut carefully. Check each angle with a square or a measuring tape before the glue fully sets, and don't expect to glue more than a piece or two each evening. At least that's my strategy - I don't really have much in the way of woodworking skills. The real carpenters bang these things out in a afternoon because they actually know how to use their table saw, and they drive a couple finish nails into each piece to hold it while the glue sets.
The new Fostex FF85WK is the replacement for the discontinued FF85K, and from all reports it works equally well. I believe this cabinet was originally designed for a Visaton driver that is popular in Europe. You can probably use any small full range driver. Look for something that has a low Qts. The FF85K claimed a Qts of 0.47, so aim for something close to that. I understand the Mark Audio full range drivers are also supposed to perform well.
You can also "stretch" the top chamber of the cabinet by an inch or so, and you would be able to fit a 4" full range driver. The Fostex FE126En is a popular choice.
Oh, and welcome to DIYtube!
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