Hi Rudy,
Very quick modeling of D123 using only the three minimum parameters required to model LF response. No time now to do a complete modeling with vent data using all TS, would need to add these in Winspeakerz software.
Still gives an idea of what to expect in terms of bass. As usual i try to model with relatively flat LF response, QL 7 and half space loading.
1rst pic one D123, 5 cf box, top curve Fb 45hz, lower curve Fb 40hz
2nd pic two D123, 5 cf box, top curve Fb 45hz, middle curve Fb 40hz, lower curve Fb 35hz
Two woofers = more output but not deeper bass, in fact one woofer has lower F3. The choice between one or two woofers in that box is pretty obvious in my view.
With pretty old drivers one has to be careful bass wise regarding limited driver excursion capability (2.54 mm) vs output level... Regards,
Richard
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