Thanks for the welcome Wayne,
1. Visaton B200 is very popular driver among Open Baffle enthusiasts
http://www.audiocircle.com/circles/i...topic=19253.10 (Here is ~100,000 views thread
)
http://www.6moons.com/audioreviews/r...roadtour5.html (This is what the speakers may look like)
The reason i mentioned it within the context of damping question is because Open Baffle speakers usually have shorter transients -> they are 'fast' (even though i hate to call it that), hence it's tricky to integrate 'regular' subs with them (they seem 'slow' = low system Q, delay), sometimes requiring OB / IB / TL subs. I was worried if i use Low Damping Setting (because it looks flatter) the woofer would be looser and less accurate.
2. I actually mean to buy BFD and 'cut ~10-15dB' with BFD to bring the whole response curve to the lowest level of 60Hz dip, making it smother and then increase gain on the amp to make up for the EQ cut. I'd loose efficiency but make the response flatter. Is it worth it?
4. I used the calibration file for ecm8000 which is +-2dB from ideal while Sonnie is making one for CM140. I also used 1/3 octave smoothing to approximate the response. I understand that the conditions are not the same, i guess i'll need to build some acoustical panels since i can't use EQ for higher freqs.
Thanks