I am considering to build a 2-way 900~ 20000 Hz Unity/Synergy horn.
1) One driver (D1) handling 900~ 7000 Hz and the other (D2) 7000 ~ 20000 Hz, both being compression drivers.
2) D2 will be at the origin/apex of the horn.
3) A couple of D1s will be at a distance of 0.5", on the horn wall, away from the D2. Because the cross-over frequency is 7000 Hz => wavelength of 2" and the two drivers are to be separated by a distance of one fourths of the cross-over frequency.
4) And @ bwaslo's spreadsheet is adequate to iron out rest of the details
5) I chose compression drivers because the whole reactance annulment seems a bit too complicated to understand , even for closed back drivers. And for open-back drivers, it's an order of magnitude more difficult to understand, not to mention the bother of making little chambers for their rear. If I ever find the perfect driver, that is...
Please let me know if I have got any of the Unity horn basics correct.
Thanks
1) One driver (D1) handling 900~ 7000 Hz and the other (D2) 7000 ~ 20000 Hz, both being compression drivers.
2) D2 will be at the origin/apex of the horn.
3) A couple of D1s will be at a distance of 0.5", on the horn wall, away from the D2. Because the cross-over frequency is 7000 Hz => wavelength of 2" and the two drivers are to be separated by a distance of one fourths of the cross-over frequency.
4) And @ bwaslo's spreadsheet is adequate to iron out rest of the details
5) I chose compression drivers because the whole reactance annulment seems a bit too complicated to understand , even for closed back drivers. And for open-back drivers, it's an order of magnitude more difficult to understand, not to mention the bother of making little chambers for their rear. If I ever find the perfect driver, that is...
Please let me know if I have got any of the Unity horn basics correct.
Thanks