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RE: internal crossovers in loudspeakers.

do not just separate the lows from the highs, they also perform impedance corection and equalization (some time additive, sometimes subtractive, so simply adding an external crossover and bypassing the the passive in the box usually results in inferior performance.

But with patience and engineering and measurements the results you get from a biamped system is much better sound because of (1) lowered distortion - created by the saturation passive inductors; (2) better woofer control - because of the eliminatin of series resistance; (3) better matching of gains - no need for a resistive L pad for the tweeter - throw in a nicwe low powered Tube Amp instead; (4) more headroom (because of the splitting of the signal energies going to the amplifiers (5) more precise control of EQ.

When an electronic EQ is designed by the manuafacturer for a loudspeaker they can (but not usually implemented) adjust for the thermal non linear behavior of components (this can be done in a passive crossover also - though with lot's of limitations).

Why loudspeaker designers (or high end consumers) do not embrace the idea of biamping is an interesting discussion.

Would Wilson Audio (for example) be abnle to make a beter reference standard loudspeaker if they they used electronic crossovers and amplifiers? No doubt...

Would Dealers want to sell it? maybe not... they miss the (potential revenue of amplifiers, amplifier upgrades, cables , etc.

Would Audiophiles buy it? maybe not... We miss the fun of rolling your own.

Some companies emprace electronic crossovers for their product (ATC, B&O, Meridian)

Some companies (that you would expect to do not) McIntosh?
"The hardest thing of all is to find a black cat in a dark room, especially if there is no cat" - Confucius


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