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openbaffle Part 2 with miniDSP2x4HD 6 months 2 weeks ago #54966

  • dy1026u
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I build so many speaker ;)

here is Part 2 of the last years openbaffle building operated with miniDSP2x4HD

with my modular testing system it is very easy to check differnt tops. I change the mounting rails. Now I use stable aluminium rails instead of smal steel rails.

the next speakertest: Hiwell08HF





the Hiwell needs less digitalfiltering and a highshelf ,
DSP crossover Bass 280Hz 24db/BW and Hiwell 320Hz 24dB/BW


Sica LP 208.38/426T, without the whizzer and Beston RT002A Ribbontweeter Tweeter passiv 1µF/0,15mH/12dB





some quick test,




and the next: 4way openbaffle Dayton MIni8AMT koax in front of an old Bell Horn. Horndriver is a very cheap chassis ,50cent :woohoo: for lowmidrange I use my Sica without the whizzercone.





sounds much better than it looks like



active crossover 200Hz Bass/250Hz Sica
passive crossover sica: 2,3mH/65µF/12dB ca.850Hz
The 16 Ohm cheap Horndriver chassis has got a 3.3µF capacitor and 8 Ohm series resistor. The AMT hangs coaxially in the mouth of the horn and has only 0.68µF and 3 Ohm series resistance

I use this open baffle for 8 mounth ... what a long time :whistle:

greatings, Hartmut

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