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Hi to all : several firms make tractrix horns for 2-way systems ( image 1).
The tractrix 110 (horns.pl) can be driven with CD like the Monacor DT-400.
But it is suitable for drivers up to 4.5 inches. What does this mean ?
I haven t found drivers larger than 2 inches. Could a fullrange 4.5 inch driver be used as well ?
The frequency should be up from 160 Hz - could it be coupled with a tweeter for the higher treble ?
Does anyone have experience with this or similar tractrix horns ?
 

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Discussion Starter #2
Additional Informations

Here are some more data :

The mouth of the horn can be made any size up to 8".
Any driver can be used with this horn.
Accordingly, the crossover freuquency varies.
With a Fostex 207E, officially frequency covers 40 - 20 000 Hz, but it is useable only between 100 and about 5000 Hz.

My questions :

What should I use for the upper frequencies ?
Would it be better to drive it with a midwoofer that covers 40-4000 Hz, plus a horntweeter, ribbontweter or a magnetic planar ?

Thanks a lot.
 
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