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Well, the game with a “better” 10" bass driver is over. After years of mind looking for the 10” light-coned, papered 20Hz drivers with higher sensitivity and after a month of quite active searching for such a driver I concluded that such a driver juts do not exists. I went over (specs) at least a dozen drivers that remotely fit the requirements and spoke with a number of driver manufacturers exploring the possibility to make a run of the custom drivers. The compromise between sensitively and some other crucial for me characteristic really did not allow to move upper at the sensitively scale even if I make my favorite 25W/8565-00 a lower impedance version it would demands the stiffer suspension in order to retain mechanical stability at high levels with the heavier voice coils and consequently the increase of the resonance frequency. I was looking at all of this and decided that without spending a really huge amount of blood and dough to resolve this issues and without going into the realm of 15” line arrays I would advance the sensitivity by adding a pair of drivers per channel. The 25W/8565-00 is 88dB and with 6 drivers I have +3dB per driver >100dB total (?). It sounds to me like OK numbers + I will still stay under thesecure umbrella of SD-1 motor, SET friendly, low excursion assembly with “smartly” overhang VC of non-excessive power handling.. In addition I know how the 25W/8565-00 sound….

I feel that I kind or lost the battle for the higher sensitivity 10" bass driver but …sometimes it is peaceful to be a looser.

Rgs
Romy The caT

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