Most O15 builders are looking for a huge bottom end. This chart compares the O15 to the simulated response of a 4x10 loaded with long throw low fs low sensitivity OEM drivers, similar to the Eminence BP102 results shown here:
The +6dB sensitivity difference means that the O15 with 300 watts input will match 1200 watts into the long-throw 4x10.
Comparisons of the different models with each other and commercial cabs.
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