The roll off makes sense if it was a compromise made for higher sensitivity, but again this is where I’m seeing mixed signals on this thread: Many people are saying this design is intentional to tune them to expected boundary reinforcement. But that also conflicts with the idea that the F208 is a well tuned speaker regarding bass output.Quick search shows that “sink” means reverse polarity ( out of phase). No clue on benefit though.
3 woofers is +4.8dB over a single woofer. It is around 91.5dB from 200Hz-1kHz, so that would put each woofer at 86.7dB. So, only if their individual sensitivity is higher than that could they keep the high sensitivity as well as extend the bass. Also, do keep in mind Amir said the bass may be a tiny bit higher in level than his measurements show.
You can't have it both ways -- the F208 and F328Be cannot both be simultaneously tuned to perfection regarding bass:
- If the F328Be's bass is not too weak, then it mathematically follows that the F208's bass must be too strong!
- If the F208's bass is not too strong, then it mathematically follows that the F328Be's bass must be too weak!
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