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Original Message
RE: anyone have experience with DS18 midranges?
Posted by 91derlust on December 31, 2016 at 13:47:13:
"my basic instinct is always to just stick with conventional hifi drivers and use the 3dB every time you double rule to get the efficiency up"
Isn't that true only if drivers are paralleled, which also halves the impedance with each doubling? In your example, the eight drivers in parallel with gain the suggested 9dB, but impedance will be reduced to 0.5 Ohm.
Cheers,
91.