How to do a speaker crossover, does a speaker need a crossover?

The following diagram is the schematic diagram of the crossover; FYI;

Basically, there are crossovers, but the cost, structure, and materials of the crossovers are different, because directly connecting the woofers in parallel or series is easy to burn the tweeters.

The crossover of non-full-range speakers adopts a series of crossovers according to the cost from low to high:

The cheapest single capacitor or single resistance frequency divider: the popular passive two-way bookshelf box, the use of single capacitor frequency division is the majority, the cost is only a few cents, that is, the power amplifier is directly connected to the woofer, and the tweeter is connected in parallel with the bass through a non-polar capacitor;

Some speakers that use piezoelectric tweeters use single-resistance crossover, and the tweeter string is connected in parallel with the bass with a high-power and low-resistance resistor;

2.The mid-range power divider using ordinary materials is divided into one order, two orders and three orders, and the materials are iron core inductors, audio non-polar capacitors and high-power resistors, and the ** of a single frequency divider is between 2 and 10;

3.High-end power dividers using audiophile components are also multi-staged, using high-grade materials such as air-core inductors and audiophile capacitors, the cost is very high, and some excellent air-core inductors are just a few dollars a piece, and the unit price of such crossovers is more than 20.

If there is a woofer and a tweeter in a speaker, it needs to be connected with a crossover. If the output power of the amplifier is relatively small, and the caliber of the woofer is not large, even if the crossover is used, the effect is not large. Use the frequency divider to drive the horn, the output power of the power amplifier should be at least 10 watts, and the woofer caliber should also be more than seven inches.

The two-way circuit diagram is as follows:

The l in the figure can be wound into an air punch side accompaniment coil 150 200 turns. C in the figure can be replaced by an electrolytic capacitor with 3 10 microfarthics, regardless of positive and negative electrodes.

Dear users, about the connection method of the speaker crossover, I have the following clear point of view: First of all, the connection of the speaker crossover should be determined according to the specific speaker and crossover model. Different models of speakers and crossovers may have different interfaces and wiring methods, so you need to carefully check the equipment manual and follow the wiring diagram on the manual.

Secondly, generally speaking, the input end of the speaker crossover should be connected to the audio source device (such as the player, CD player, etc.), and the output should be connected to different speaker units (such as subwoofer, midrange unit, tweeter, etc.). When connecting the output, it is necessary to pay attention to the impedance matching of different loudspeaker units to avoid damaging the equipment or affecting the sound quality. In addition, it is also necessary to pay attention to some details, such as ensuring good contact when wiring, and keeping the signal line as short as possible.

If you have any other questions about how to connect the speaker crossover, you can always ask me. In addition to traditional active crossovers, there is also a device known as a "digital crossover". The digital crossover can digitize the audio signal and divide it for processing, so as to achieve a higher precision crossover effect.

However, the digital crossover has a high ** and needs to be used with digital audio equipment, which may not be commonly used by the average user.