![]() ![]() We will also go over comparing the two cable types, and when you should hire some help. This article will cover the terms you need to know, what a straight-through cable is and what a crossover cable is. We’d like to break down these differences more granularly so that anyone can understand why these two cables need to be used in separate situations. crossover cables is fairly simple when you take the basics of the two. Audio Mixer Circuit, Operational Amplifier Schematic.Comparing straight-through vs. Audio Dual Channel Amplifier Circuit, Operational Amplifier Schematic. Audio Amplifier Circuit, Operational Amplifier Schematic. ![]() Loudness Adjustment Circuit, for low volume bass. Midrange Adjustment Control, for more control. Treble Control standard passive high frequency adjustment. Audio Base Control, standard passive low frequency adjustment. The pages provide schematic diagrams for both passive and active circuits, and in some cases a passive circuit that is also used with an active circuit. In any event because the preference is almost user defined, no values are used in the circuit schematic above. Of course some home entertainment speakers, having only one speaker or two of the same type my not have a cross-over network at all. A set of KL555A have the crossover frequencies stated at 800Hz, 5000Hz, also with a tone selector. The crossover network also states a 12dB / octive change. The crossover frequencies are stated at 700Hz, 5000Hz and 10000Hz. The KL777A has a tone selector which changes the sound from soft, normal, or clear. ![]() Remember much of how a speaker sounds depends on the room it's placed in and of course the enclosure or cabinet that's used.Īmong the speakers the editor uses include two 4-way, 6-speaker, KL-777A speakers from Kenwood covering the 25 - 22,000Hz audio frequency range. However almost any common value around those ranges will do depending on how fast, or slow, you want the crossover to take place between the speakers and the types of speaker used. Reducing the circuit could just leave the capacitor in circuit with the speaker forming a voltage divider.Ĭommon values to use include 1mH for the inductors and 16uF for the capacitors. The series capacitor C2 blocks or attenuates low frequencies from reaching the speaker, while the inductor L2 passes high frequencies to the speaker. The high-pass filter is comprised of inductor L2 and capacitor C2, and is designed to pass high frequencies to a tweeter. So at low frequencies the capacitor passes all the energy to the speaker, but as the frequency grows more energy is lost over the inductor, passing less energy to the speaker. At the same time the impedance of the parallel capacitor C1 is higher at lower frequencies. The series inductor tends to block high frequencies, while passing low frequencies. The low-pass filter is comprised of inductor L1 and capacitor C1, and is designed to pass low frequencies to a bass speaker or woofer. This particular crossover network uses two passive components for each filter. Definition of Engineering Phrases "A" "B",Īn audio cross-over network is used inside a speaker to separate or filter audio signals of different frequencies to different speakers within a speaker cabinet designed to handle those frequencies. ![]()
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