Home Speaker Asylum

General speaker questions for audio and home theater.

RE: No, there is science behind bi-wiring

Yet another error in this description. I agree that the removing the jumpers from the speaker terminals isolate the crossovers but that's it.

1) First of, it should be noted that speaker A and speaker B terminals are not seperate channels as incorreclty assumed by the author. They are in fact parallel taps of the output stage. So the output stage see's the speaker in its entirety, both woofer and tweeter when biwired.
2) Furthermore, the amplifier output sends full bandwidth signals across the speaker terminals because its both physically and electrically the same output stage. It cannot send different signal bandwidths from the receivers speaker terminals as they are connected electrically and physically across the same output stage.

"The situation is such that when the full range musical signal is applied to the terminals of a full-range speaker system, the woofer only gets sent low frequency signals, and the tweeter only gets sent high frequency signals. Once the crossover networks have been electrically separated, they still continue to function in the same manner, having a low impedance in their passband of application. This means that if separate speaker cables are hooked up for the woofer and it's portion of the network, and the tweeter, and it's portion of the network, not only have the speakers and the frequency's directed and divided for them, but the two separate speaker cables will now also carry different signals, the woofer cable mostly the lows, and the tweeter cable mostly the highs.

Once the highs and lows have been separated in this fashion, the strong current pulses and surges that a woofer demands when reproducing bass or drums will not interact with the delicate sounds of a flute or cymbal. The magnetic field of the low frequency signals cannot modulate or interfere with the highs, and to a lesser extent, the reverse is true. "



Edits: 07/24/15

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