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complex xover = more power required?

Before you make sweeping generalizations about what level of power is required for decent sound, please consider factors that might be important to individual applications.

I have seen a schematic of the Thiel 2.4 xover, and it is fairly complex. Nothing wrong with that if it makes the drivers behave, but it leads to needing much more power than a simpler system would. All of those passive components absorb energy or redirect it to ground (that's their only role), so obviously one needs more power at the input if so much of it gets wasted.

Glad that you found the optimum power requirement for those particular speakers, but there are decent speakers that can be driven more efficiently and therefore don't require hundreds of watts to come alive. Probably more than a single watt, but the whole point of the first watt school is: much of what we hear IS determined by the quality of very low level power, even when you're cranking complex, big music. If that low level power isn't good, then you can pile on all the additional watts you want and it'll still sound bad. That first watt IS critical, but it doesn't have to be, and probably shouldn't be the only watt.

Active crossovers change the perspective completely, but no one, and I mean no one, could design an active circuit that approaches the complexity of that wild Thiel design.

Peace,
Tom E
berate is 8 and benign is 9

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