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In the Forum: Horn-Loaded Speakers
In the Thread: Good midbass is complicated, if not unobtainable.
Post Subject: Evaluating two midbass horns.Posted by Rewind on: 10/28/2013
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Tonight I finished two
horns at once. One was a shortened Goto S-150 horn that now has a
Fane S 8M, without back chamber so far. Dimensions are now 1.1m deep, 11cm throat, 75cm mouth. It is replacing the Avantgarde
Trio midbass horn replica with a Fane S 8M with back chamber.
I
was spending the weekend with hornresp, and I could not get the
Avantgarde Trio midbass horn to simulate very well, which explained my mixed feelings about it.
I am liking this setup better. I don't shiver when I cross the Fane up to 600Hz.
The
other horn I finished is a Kugelwellen horn inspired by Trio mid horn
that goes down to approx. 550Hz. This horn I am mighty pleased with.
Minor adjustments left at the throat. The previous version was made in
newspaper and tape. They sound similar, although pine tree and oak was a
better idea. 
The
two top horns in the Avantgarde Trio is probably the only horns I will
still be impressed by. I should not say those things when I have not
heard the original yet.
I do miss the large Goto S-150 horns but
I will fix that with a JMLC-200T inspired horn later. It sounds too
sensible now. Too correct. I would not say boring, since it is still
horns. I have given up on the WE 15A though. I have found my perfect
drivers and these babies will not play lower than 300hz anyway. 340hz
will be a good enough goal.
The next midbass horn, if I ever design it, will be a JBL 2202H in a 50Hz straight horn, or more realistically, a J horn.
Current setup:
JA6681B in a shortened JBL HL 14-25: 3500-12 000Hz
JA6681B in own Kugelwellen horn: 600-3500Hz
Fane S 8M 8 ohm in shortened Goto S-150: 95-600Hz
LAB12, still in boomy sonotube 35-95Hz 
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