Crossover network speaker system
Much more information is available in the manuals. T he word "speaker" is the shortened form of the word "loudspeaker" and it refers to a device that converts electrical signals into sound waves that we can hear. A speaker has several parts: Box — houses the drivers and, if present, a passive crossover network. Crossover network — divides the audio signal between the drivers. Driver — converts the electrical audio signals into sound waves.
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What is a speaker crossover?
A crossover network, also called a dividing network , is the component of a loudspeaker that divides the audio signal between the drivers.
Most speakers must use more than one size of driver because it is extremely difficult for one driver to accurately reproduce sound waves over the entire 20 Hz to 20 kHz frequency range of human hearing.
The most common multi-way speakers use two drivers, a tweeter and a woofer. This requires the electrical audio signal to be divided into a high-frequency part and a low-frequency part before the signals reach the drivers. This is very important because most tweeters will be damaged if they are driven with a low-frequency signal.
The illustration below shows the sound being divided between the tweeter and the woofer:. The frequency where the sound is divided is called the crossover frequency. Ideally, a crossover frequency is chosen which protects the tweeter, allowing it to produce only those frequencies that it can reproduce the best, and allows both the response and coverage pattern of the woofer to blend well with the tweeter. The coverage pattern is the shape of the listening area where a driver will provide a relatively uniform direct sound pressure level.
If the speaker has more than two sizes of drivers the crossover network also divide the audio signal into one or more additional midrange frequency bands. There are two places where a crossover network can be placed in the audio system: after the amplifier or before the amplifier. Here are some points about each location:. The important point to remember about crossover networks is that they divide the audio signal so that each driver in a multi-way speaker will receive only frequencies that it can handle and reproduce well.
The illustration below shows the sound being divided between the tweeter and the woofer: The frequency where the sound is divided is called the crossover frequency. Here are some points about each location: After the amplifier Generally the most common and least expensive location for a crossover network. Uses passive components that do not require an external power supply so they are referred to as passive crossover networks.
Uses large components that can handle the full power delivered to the speaker. Is very sensitive to the impedance response of the drivers.
Can be mounted inside or outside of the speaker box. When a crossover network is mounted in or on the speaker box, it is considered a part of the speaker. Only one amplifier channel is required per speaker because the audio signal is divided after it has been amplified.
Are often easier for the hobbyist to construct at home because a printed circuit board and power supply are not required. Before the amplifier Generally a more expensive location for a crossover network but it can produce higher fidelity and offer more adjustability. Is usually constructed with active components that require an external power supply so they are referred to as active crossover networks.
Passive crossover networks can also be used before the amplifier but they are uncommon. Uses smaller components since they are located "upstream" of the amplifier outputs and handle much less power. Is not affected by the impedance response of the drivers.
Must be located between the preamplifier and power amplifier s , usually in an equipment rack or cabinet. Because it is not located with the speaker, it is usually considered a separate component and not a part of the speaker.
Requires a separate amplifier channel for each driver or crossover network filter and thereby raises the overall cost of the audio system. Are usually more difficult to construct because a printed circuit board and case chassis are often desired and an external power source is required.
Related category. Music encyclopedia index.

Audio crossover
Speakers are wonderful things. You connect them to a piece of electronic equipment and they produce sound. The humble speaker of today actually started out in the s, almost a century ago. While efforts to replace electromagnetic speakers with some newer technology have been made, nothing has touched it for faithfulness in sound production and price.
Assemblies
Home » Audio-Wissen » What is a speaker crossover? The speaker crossover is a component hidden within just about every loudspeaker. The only exceptions are full-range speakers and speakers that use software to separate frequencies. Crossovers are also sometimes also found within amplifiers or receivers, especially home cinema receivers where the subwoofer for bass playback is separate from the satellites. As its name suggests, a crossover is where the unfiltered audio signal is divided according to a predefined upper or lower threshold. The speaker crossover supplies each driver with the signal range it was designed to best reproduce. For example, crossovers ensure that tweeters only receive the highest frequencies, not any of the lower ones this driver was not designed to reproduce. Read on to learn more! If we take a typical 3-way tower speaker as an example, the function of a speaker crossover can be clearly visualized.
China audio active crossover

Speaker crossover networks are always a requirement with any system using two or more loudspeaker drivers. While some high quality systems go to great lengths to get everything right, many don't, so the result is not always as expected or hoped for. For passive crossovers, the network is designed to match a resistive load across the crossover frequencies. Loudspeaker drivers are with few exceptions not resistive, but are reactive. They are truly resistive at two frequencies, resonance, and at the lowest impedance seen on the impedance curve.
What is a Speaker Crossover?
The open-staging and smooth transition of driver response makes for an immersive experience that is truly the ultimate in-car sound. D-Series speakers feature an exclusive rear chamber tweeter enclosure that we first used in our famed PRS speakers. It extends mid-range frequency for improved vocal imaging and staging. Audiophile-grade capacitors and inductors are used, and all components are encased in a clear acrylic cover for protection. The included 6" x 8" adapter allows this component set to also be used in many Ford and Mazda vehicles that feature a 6" x 8" speaker application size. Absolute fidelity to musical sources takes form from speakers that reproduce the ambience in which sounds originate.
Passive Vs Active Crossover Networks
The Audison bitTen processor includes a very high end active crossover. Crossovers are electronics devices that convert a single audio input signal into two or three signals by dividing the signal into bands based on frequencies. So, for example, a single input signal can be separated into bands of low-, high-, and mid- range frequencies. Every audio system, including the one in your car, needs a crossover to direct sound to the correct driver. Tweeters, woofers and subs should get high, mid and low frequencies respectively. Every full-range speaker has a crossover network inside. Mid and bass notes would clash together in the woofers, and tweeters would waste energy playing mid-range notes.
What Is A Crossover and What Does it Do?
Many drivers often face the challenge of setting crossover frequencies for a new car audio system or one that they are not used to. To solve the puzzle of dividing sound waves on any type of car audio system, it would be better to first understand what crossovers are and how they work. A crossover filters unwanted sound waves so that they are not sent from one frequency range to the other. It allows you to send each speaker the ranges that it will play most efficiently.
Weight: 3. Current Stock:. Quantity: Decrease Quantity: Increase Quantity:. Warranty 1 year manufacturer's warranty. Description The Crossover A well-matched crossover separates a good pair of speakers from a truly spectacular component system. Rather than utilize some cookbook formula, our engineers meticulously developed a custom crossover network that beautifully complements the natural roll-off of the tweeter and midwoofer.
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Whether you're a regular listener or a professional, you want pure, high-quality audio when you're looking for a good speaker system. You want a sound system that will sound great for the type of music you play and of course, you want to be able to adjust speaker frequency settings. To do this, you need to learn how to determine speaker crossover frequency. The crossover frequency of a speaker is the audio frequency point where particular sounds are blocked or reduced.
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