Re: more on confused signals april 20

"Rupert"


Though I know passive crossovers can be 24dB per octave, I've never
seen them used in live sound reinforcement boxes. They tend to be 12dB/
oct designs. I suppose the reason is due to complexity and cost since
the components have to be able to handle the high power levels
required for such speakers. Then there's the issue of saturation and
component failure with that many components involved. I've seen some
pretty spectacular passive network failures. I would imagine a more
complex circuit would be a greater liability.


** Most " spectacular " failures in passive x-over networks are DUE to the

failure of the associated driver first.

Egs:

Bass driver goes * low impedance *  as the voice coil turns into a molten 
mass of copper  =    melted x-over feed coils.

Horn driver goes open circuit   =  burnt power resistors and/or protection

lamps in the x-over .




 .......  Phil