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[Luke Sheridan]

Has anyone put any thought into the creation of a matching bass bin to go along with the lab sub? I'm thinking of something that handles from 70-250 hz. I feel like this is a fairly common weak point of systems and would be a good project to work on, being still fairly simple. An example of this would be something like nexo's b1 or funktion-one's f118.

[Michael_Elliston¶]

The horn has to be straight,or carefully folded.Not like a typical basshorn.

See HD15 at speakerplans.com
Or straight EV horn at volvotreter.de

[peter.golde]

A good example of a carefully folded horn is the Bill Fitz DR300, loads down to 80HZ and goes as high as 2k with the right driver.
I am sure a lot of people have reservations about going that high with a single driver, but the fact that it can would make it usefull as a quality midbass with directivity, IMHO. According to Bill the nominal directivity is 60 x 40. The box, though difficult to build, is fairly compact, and inexpensive.

[David Trotter]

I've been designing just this..

http://www.speakerplans.com/forum/forum_posts.asp?TID=2701&a mp;PN=1

you can see more info here. Its a trap box, same width as a lab and half as high. 720mm deep.

opinions?

[Joe Jones]

I like myDR300s, two of them keep up with four T36slims. Just saw this at fitz forum, two DR300s matched to four labs.
http://audioroundtable.com/BillFitzmaurice/messages/10093.ht ml