6th order crossover design

i am very new to crossover design.  in a 6th order, 2-way network, lets just say for argument sake; you wanted the woofer crossed over at 800 hz lp, and the tweeter crossed over at 3000 hz hp.  charts would suggest a 1.6 mh inductor for the woofer and a 6.6 mf cap for the tweeter. (for 8 ohm) my question is this, instead of running these in series with the speakers, could you run them parallel  using a 25 mf cap for the woofer and a .42 mh inductor for the tweeter??

First off, you mean a First Order, 6dB/octave crossover. 6th order crossovers are EXCEPTIONALLY large, requiring MANY passive devices, and are usually left in the domain of active crossovers, especially digital ones.

Secondly, yes, you CAN, but inductors are FAR more efficient at passing current (for the woofer) than are capacitors. Also, inductance distortions are FAR more noticeable in the highs, this is why you keep the passive components where they are. Additionally, if you wire them in parallel like that, below the crossover point for the tweeter, and above the crossover point for the woofer, the amplifier is seeing a short. The resistance (of the driver's voice coils) needs to be in series with the capacitance, and the same applies for the low pass... You would effecively have two 8 ohm loads in parallel, in parallel with an infinitely low (dead short) impedance. Amps don't like that very much...

And C, you'd NEVER, EVER chose crossover points like those in a two way system, that'd sound like CRAP! 80% of your hearing is in that critical range of 800 to 3K!

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

I was about to say *WOO HOO* somebody has interest in a 6th order crossover, must be some pretty critical components and a cracker jack designer, let me at 'em!  I have a done a few couple 6th order electrical designs and several 3rd order that results in a 6th order acoustic with the right drivers, let's talk!

But alas, that is not the case.  haemphyst got here first and as usual he is right.

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